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script/__Lib/diffcalc_old/test/diffcalc/hkl/vlieg/test_calc.py

@@ -0,0 +1,253 @@
+###
+# Copyright 2008-2011 Diamond Light Source Ltd.
+# This file is part of Diffcalc.
+#
+# Diffcalc is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# Diffcalc is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Diffcalc.  If not, see <http://www.gnu.org/licenses/>.
+###
+
+import random
+import unittest
+from math import pi
+from mock import Mock
+from test.tools import mneq_
+import pytest
+
+try:
+    from numpy import matrix
+    from numpy.linalg import norm
+except ImportError:
+    from numjy import matrix
+    from numjy.linalg import norm
+
+from diffcalc.hkl.vlieg.calc import VliegHklCalculator, \
+    _findOmegaAndChiToRotateHchiIntoQalpha, check
+from diffcalc.hkl.vlieg.geometry import createVliegMatrices
+from diffcalc.util import DiffcalcException
+from test.diffcalc import scenarios
+
+TORAD = pi / 180
+TODEG = 180 / pi
+
+
+def createMockUbcalc(UB):
+    ubcalc = Mock()
+    ubcalc.tau = 0
+    ubcalc.sigma = 0
+    ubcalc.UB = UB
+    ubcalc.n_phi = matrix([[0], [0], [1]])
+    return ubcalc
+
+
+def createMockHardwareMonitor():
+    hardware = Mock()
+    hardware.get_position.return_value = (0.0, 0.0, 0.0)
+    hardware.get_axes_names.return_value = 'madeup', 'alpha', 'gamma'
+    return hardware
+
+
+def createMockDiffractometerGeometry():
+    geometry = Mock()
+    geometry.parameter_fixed.return_value = False
+    geometry.supports_mode_group.return_value = True
+    geometry.fixed_parameters = {}
+    geometry.name = 'mock'
+    geometry.gamma_location = 'arm'
+    return geometry
+
+
+class TestVliegCoreMathBits(object):
+
+    def setup_method(self):
+        self.many = [-91, -90, -89, -46, -45, -44, -1,
+                     0, 1, 44, 45, 46, 89, 90, 91]
+        self.many = (self.many +
+                     map(lambda x: x + 180, self.many) +
+                     map(lambda x: x - 180, self.many))
+
+    def test_check(self):
+        check(True, 'Should not throw')
+        with pytest.raises(Exception):
+            check(False, 'string')
+        with pytest.raises(DiffcalcException):
+            check(False, DiffcalcException('dce'))
+
+        def acallable(toPrint=None):
+            if toPrint is None:
+                print "Not throwing exception"
+            else:
+                print toPrint
+
+        check(False, acallable)
+        check(False, acallable, 'this should be printed')
+
+    # TODO: Removed 2017-03-06, deprecated started code failing -- RobW.
+    def SKIP__findOmegaAndChiToRotateHchiIntoQalpha_WithIntegerValues(self):
+        for omega in self.many:
+            for chi in self.many:
+                print str(omega), ",", str(chi)
+                self.try__findOmegaAndChiToRotateHchiIntoQalpha(omega, chi)
+
+    def SKIP_findOmegaAndChiToRotateHchiIntoQalpha_WithRandomValues(self):
+        for _ in range(10):
+            for omega in self.many:
+                for chi in self.many:
+                    omega = omega + random.uniform(-.001, .001)
+                    chi = chi + random.uniform(-.001, .001)
+                    self.try__findOmegaAndChiToRotateHchiIntoQalpha(omega, chi)
+                    #print str(omega), ",", str(chi)
+
+    def test__findOmegaAndChiToRotateHchiIntoQalpha_WithTrickyOnes(self):
+        tricky_ones = [(-45., -180.), (45., -180.), (135., -180.), (2000, 0.),
+                       (225., 0.), (225., -180.), (-225., 0.), (-225., 0.),
+                       (-225., -180.), (-135., -180.), (89.998894, -44.999218)]
+        for omega, chi in tricky_ones:
+            self.try__findOmegaAndChiToRotateHchiIntoQalpha(omega, chi)
+
+    def try__findOmegaAndChiToRotateHchiIntoQalpha(self, omega, chi):
+        h_chi = matrix([[1], [1], [1]])
+        h_chi = h_chi * (1 / norm(h_chi))
+        [_, _, _, OMEGA, CHI, _] = createVliegMatrices(
+            None, None, None, omega * TORAD, chi * TORAD, None)
+        q_alpha = OMEGA * CHI * h_chi
+        try:
+            omega_calc, chi_calc = _findOmegaAndChiToRotateHchiIntoQalpha(
+                h_chi, q_alpha)
+        except ValueError, e:
+            raise ValueError(str(e) + "\n, resulting from test where omega:%f"
+                             " chi%f" % (self.omega, self.chi))
+        [_, _, _, OMEGA, CHI, _] = createVliegMatrices(
+            None, None, None, omega_calc, chi_calc, None)
+        self.assertArraysNearlyEqual(OMEGA * CHI * h_chi, q_alpha, .000001,
+                                     "omega: %f chi:%f" % (omega, chi))
+
+    def assertArraysNearlyEqual(self, first, second, tolerance,
+                                contextString=''):
+        """
+        Fail if the norm of the difference between two arrays is greater than
+        the given tolerance.
+        """
+        diff = first - second
+        if norm(diff) >= tolerance:
+            raise self.failureException(
+                '\n%r !=\n %r\ncontext: %s' %
+                (first.tolist(), second.tolist(), contextString))
+
+
+class BaseTestHklCalculator():
+
+    def setSessionAndCalculation(self):
+        raise Exception("Abstract")
+
+    def setup_method(self):
+        self.ac = VliegHklCalculator(None, createMockDiffractometerGeometry(),
+                                     createMockHardwareMonitor())
+        self.ac.raiseExceptionsIfAnglesDoNotMapBackToHkl = True
+        self.setSessionAndCalculation()
+
+    def testAnglesToHkl(self):
+        mockUbcalc = createMockUbcalc(
+            matrix(self.sess.umatrix) * matrix(self.sess.bmatrix))
+
+        self.ac = VliegHklCalculator(mockUbcalc,
+                                     createMockDiffractometerGeometry(),
+                                     createMockHardwareMonitor())
+        self.ac.raiseExceptionsIfAnglesDoNotMapBackToHkl = True
+
+        # Check the two given reflections
+        (hklactual1, params) = self.ac.anglesToHkl(self.sess.ref1.pos,
+                                                   self.sess.ref1.wavelength)
+        del params
+        (hklactual2, params) = self.ac.anglesToHkl(self.sess.ref2.pos,
+                                                   self.sess.ref2.wavelength)
+        mneq_(matrix([hklactual1]), matrix([self.sess.ref1calchkl]), 3)
+        mneq_(matrix([hklactual2]), matrix([self.sess.ref2calchkl]), 3)
+
+        # ... znd in each calculation through the hkl/posiiont pairs
+        if self.calc:
+            for hkl, pos, param in zip(self.calc.hklList,
+                                       self.calc.posList,
+                                       self.calc.paramList):
+                (hkl_actual, params) = self.ac.anglesToHkl(pos,
+                                                        self.calc.wavelength)
+                note = ("wrong hkl calcualted for scenario.name=%s, "
+                        "calculation.tag=%s\n  expected hkl=(%f,%f,%f)\n"
+                        "calculated hkl=(%f,%f,%f)" %
+                        (self.sess.name, self.calc.tag, hkl[0], hkl[1], hkl[2],
+                         hkl_actual[0], hkl_actual[1], hkl_actual[2]))
+                mneq_(matrix([hkl_actual]), matrix([hkl]), 3, note=note)
+                print "***anglesToHkl***"
+                print "*** ", str(hkl), " ***"
+                print params
+                print param
+
+    def testHklToAngles(self):
+        if self.calc:
+            # Configure the angle calculator for this session scenario
+            UB = matrix(self.sess.umatrix) * matrix(self.sess.bmatrix)
+            mockUbcalc = createMockUbcalc(UB)
+            hw = createMockHardwareMonitor()
+            ac = VliegHklCalculator(mockUbcalc,
+                                    createMockDiffractometerGeometry(), hw)
+            ac.raiseExceptionsIfAnglesDoNotMapBackToHkl = True
+
+            ## configure the angle calculator for this calculation
+            ac.mode_selector.setModeByName(self.calc.modeToTest)
+
+            # Set fixed parameters
+            if self.calc.modeToTest in ('4cBeq', '4cFixedw'):
+
+                #ac.setParameter('alpha', self.calc.alpha )
+                ac.parameter_manager.setTrackParameter('alpha', True)
+                hw.get_position.return_value = 888, self.calc.alpha, 999
+                ac.parameter_manager.set_constraint('gamma', self.calc.gamma)
+
+            # Test each hkl/position pair
+            for idx in range(len(self.calc.hklList)):
+                hkl = self.calc.hklList[idx]
+                expectedpos = self.calc.posList[idx]
+                (pos, params) = ac.hklToAngles(hkl[0], hkl[1], hkl[2],
+                                               self.calc.wavelength)
+                note = ("wrong positions calculated for TestScenario=%s, "
+                        "AngleTestScenario=%s, hkl=(%f,%f,%f):\n"
+                        "  expected pos=%s;\n"
+                        "  returned pos=%s " %
+                        (self.sess.name, self.calc.tag, hkl[0], hkl[1], hkl[2],
+                         str(expectedpos), str(pos)))
+                assert pos.nearlyEquals(expectedpos, 0.01), note
+                print "*** hklToAngles ***"
+                print "*** ", str(hkl), " ***"
+                print params
+                try:
+                    print self.calc.paramList[idx]
+                except IndexError:  # Not always specified
+                    pass
+
+
+class TestVliegHklCalculatorSess1NoCalc(BaseTestHklCalculator):
+    def setSessionAndCalculation(self):
+        self.sess = scenarios.session1
+        self.calc = None
+
+
+class TestVliegHklCalculatorSess2Calc0(BaseTestHklCalculator):
+    def setSessionAndCalculation(self):
+        self.sess = scenarios.session2
+        self.calc = scenarios.session2.calculations[0]
+
+
+class TestVliegHklCalculatorSess3Calc0(
+    BaseTestHklCalculator):
+    def setSessionAndCalculation(self):
+        self.sess = scenarios.session3
+        self.calc = scenarios.session3.calculations[0]

script/__Lib/diffcalc_old/test/diffcalc/hkl/vlieg/test_constraints.py

@@ -0,0 +1,92 @@
+###
+# Copyright 2008-2011 Diamond Light Source Ltd.
+# This file is part of Diffcalc.
+#
+# Diffcalc is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# Diffcalc is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Diffcalc.  If not, see <http://www.gnu.org/licenses/>.
+###
+
+import unittest
+
+from diffcalc.hkl.vlieg.constraints import ModeSelector, VliegParameterManager
+from diffcalc.util import DiffcalcException
+from test.diffcalc.hkl.vlieg.test_calc import \
+    createMockHardwareMonitor, createMockDiffractometerGeometry
+import pytest
+
+
+class TestModeSelector(object):
+
+    def setup_method(self):
+
+        self.ms = ModeSelector(createMockDiffractometerGeometry(),
+                               parameterManager=None)
+        self.pm = VliegParameterManager(createMockDiffractometerGeometry(),
+                                        None, self.ms)
+        self.ms.setParameterManager(self.pm)
+
+    def testSetModeByIndex(self):
+        self.ms.setModeByIndex(0)
+        assert self.ms.getMode().name == '4cFixedw'
+        self.ms.setModeByIndex(1)
+        assert self.ms.getMode().name == '4cBeq'
+
+    def testGetMode(self):
+        # tested implicetely by testSetmode
+        pass
+
+    def testShowAvailableModes(self):
+        print self.ms.reportAvailableModes()
+
+
+class TestParameterManager(object):
+
+    def setup_method(self):
+        self.hw = createMockHardwareMonitor()
+        self.ms = ModeSelector(createMockDiffractometerGeometry())
+        self.pm = VliegParameterManager(createMockDiffractometerGeometry(),
+                                        self.hw, self.ms)
+
+    def testDefaultParameterValues(self):
+        assert self.pm.get_constraint('alpha') == 0
+        assert self.pm.get_constraint('gamma') == 0
+        with pytest.raises(DiffcalcException):
+            self.pm.get_constraint('not-a-parameter-name')
+
+    def testSetParameter(self):
+        self.pm.set_constraint('alpha', 10.1)
+        assert self.pm.get_constraint('alpha') == 10.1
+
+    def testSetTrackParameter_isParameterChecked(self):
+        assert not self.pm.isParameterTracked('alpha')
+        self.pm.set_constraint('alpha', 9)
+
+        self.pm.setTrackParameter('alpha', True)
+        assert self.pm.isParameterTracked('alpha') == True
+        with pytest.raises(DiffcalcException):
+            self.pm.set_constraint('alpha', 10)
+        self.hw.get_position.return_value = 888, 11, 999
+        assert self.pm.get_constraint('alpha') == 11
+
+        print self.pm.reportAllParameters()
+        print "**"
+        print self.ms.reportCurrentMode()
+        print self.pm.reportParametersUsedInCurrentMode()
+
+        self.pm.setTrackParameter('alpha', False)
+        assert not self.pm.isParameterTracked('alpha')
+        assert self.pm.get_constraint('alpha') == 11
+        self.hw.get_position.return_value = 888, 12, 999
+        assert self.pm.get_constraint('alpha') == 11
+        self.pm.set_constraint('alpha', 13)
+        assert self.pm.get_constraint('alpha') == 13

script/__Lib/diffcalc_old/test/diffcalc/hkl/vlieg/test_geometry.py

@@ -0,0 +1,248 @@
+###
+# Copyright 2008-2011 Diamond Light Source Ltd.
+# This file is part of Diffcalc.
+#
+# Diffcalc is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# Diffcalc is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Diffcalc.  If not, see <http://www.gnu.org/licenses/>.
+###
+
+import random
+import unittest
+from math import pi
+
+try:
+    from numpy import matrix
+    from numpy.linalg import norm
+except ImportError:
+    from numjy import matrix
+    from numjy.linalg import norm
+from test.tools import mneq_
+
+
+from diffcalc.hkl.vlieg.geometry import SixCircleGammaOnArmGeometry, \
+    gammaOnArmToBase, gammaOnBaseToArm, SixCircleGeometry, Fivec, Fourc
+from diffcalc.hkl.vlieg.geometry import createVliegMatrices
+from diffcalc.hkl.vlieg.geometry import VliegPosition
+from diffcalc.util import nearlyEqual, radiansEquivilant as radeq
+
+
+random.seed()  # uses time
+
+TORAD = pi / 180
+TODEG = 180 / pi
+
+
+class TestSixCirclePlugin(object):
+
+    def setup_method(self):
+        self.geometry = SixCircleGeometry()
+
+    def testGetName(self):
+        assert self.geometry.name == "sixc"
+
+    def testPhysicalAnglesToInternalPosition(self):
+        pos = [0, 0, 0, 0, 0, 0]
+        expected = self.geometry.physical_angles_to_internal_position(pos)
+        assert VliegPosition(*pos) == expected
+
+    def testInternalPositionToPhysicalAngles(self):
+        pos = VliegPosition(0, 0, 0, 0, 0, 0)
+        result = self.geometry.internal_position_to_physical_angles(pos)
+        assert norm(matrix([pos.totuple()]) - matrix([result])) < 0.001
+
+    def testGammaOn(self):
+        assert self.geometry.gamma_location == 'base'
+
+    def testSupportsModeGroup(self):
+        assert self.geometry.supports_mode_group('fourc')
+        assert not self.geometry.supports_mode_group('made up mode')
+
+    def testGetFixedParameters(self):
+        self.geometry.fixed_parameters  # check for exceptions
+
+    def isParamaterUnchangable(self):
+        assert not self.geometry.isParamaterUnchangable('made up parameter')
+
+
+class TestSixCircleGammaOnArmGeometry(object):
+
+    def setup_method(self):
+        self.geometry = SixCircleGammaOnArmGeometry()
+
+    def testGetName(self):
+        assert self.geometry.name == "sixc_gamma_on_arm"
+
+    def testPhysicalAnglesToInternalPosition(self):
+        pos = [1, 2, 3, 4, 5, 6]
+        expected = self.geometry.physical_angles_to_internal_position(pos)
+        assert VliegPosition(*pos) == expected
+
+    def testInternalPositionToPhysicalAngles(self):
+        pos = VliegPosition(1, 2, 3, 4, 5, 6)
+        result = self.geometry.internal_position_to_physical_angles(pos)
+        mneq_(matrix([pos.totuple()]), matrix([result]), 4)
+
+    def testSupportsModeGroup(self):
+        assert self.geometry.supports_mode_group('fourc')
+        assert not self.geometry.supports_mode_group('made up mode')
+
+    def testGetFixedParameters(self):
+        self.geometry.fixed_parameters  # check for exceptions
+
+    def isParamaterUnchangable(self):
+        assert not self.geometry.isParamaterUnchangable('made up parameter')
+
+
+y_vector = matrix([[0], [1], [0]])
+
+TOLERANCE = 1e-5
+
+
+def armAnglesToLabVector(alpha, delta, gamma):
+    [ALPHA, DELTA, GAMMA, _, _, _] = createVliegMatrices(
+        alpha, delta, gamma, None, None, None)
+    return ALPHA * DELTA * GAMMA * y_vector
+
+
+def baseAnglesToLabVector(delta, gamma):
+    [_, DELTA, GAMMA, _, _, _] = createVliegMatrices(
+        None, delta, gamma, None, None, None)
+    return GAMMA * DELTA * y_vector
+
+
+def checkGammaOnArmToBase(alpha, deltaA, gammaA):
+        deltaB, gammaB = gammaOnArmToBase(deltaA, gammaA, alpha)
+
+        labA = armAnglesToLabVector(alpha, deltaA, gammaA)
+        labB = baseAnglesToLabVector(deltaB, gammaB)
+        if not nearlyEqual(labA, labB, TOLERANCE):
+            strLabA = ("[%f, %f, %f]" %
+                       (labA.get(0, 0), labA.get(1, 0), labA.get(2, 0)))
+            strLabB = ("[%f, %f, %f]" %
+                       (labB.get(0, 0), labB.get(1, 0), labB.get(2, 0)))
+            rep = ("alpha=%f, delta=%f, gamma=%f" %
+                   (alpha * TODEG, deltaB * TODEG, gammaB * TODEG))
+            raise AssertionError('\nArm-->Base ' + rep + '\n' +
+                "arm (delta, gamma) = (%f,%f) <==>\t labA = %s\n" %
+                (deltaA * TODEG, gammaA * TODEG, strLabA) +
+                "base(delta, gamma) = (%f,%f) <==>\t labB = %s\n" %
+                (deltaB * TODEG, gammaB * TODEG, strLabB))
+
+
+def checkBaseArmBaseReciprocity(alpha, delta_orig, gamma_orig):
+        (deltaB, gammaB) = (delta_orig, gamma_orig)
+        (deltaA, gammaA) = gammaOnBaseToArm(deltaB, gammaB, alpha)
+        (deltaB, gammaB) = gammaOnArmToBase(deltaA, gammaA, alpha)
+        if ((not radeq(deltaB, delta_orig, TOLERANCE)) or
+            (not radeq(gammaB, gamma_orig, TOLERANCE))):
+            s = "\nBase-Arm-Base reciprocity\n"
+            s += 'alpha=%f\n' % (alpha * TODEG,)
+            s += ('   (deltaB, gammaB) = (%f, %f)\n' %
+                  (delta_orig * TODEG, gamma_orig * TODEG))
+            s += (' ->(deltaA, gammaA) = (%f, %f)\n' %
+                  (deltaA * TODEG, gammaA * TODEG))
+            s += (' ->(deltaB, gammaB) = (%f, %f)\n' %
+                  (deltaB * TODEG, gammaB * TODEG))
+            raise AssertionError(s)
+
+
+def checkArmBaseArmReciprocity(alpha, delta_orig, gamma_orig):
+    (deltaA, gammaA) = (delta_orig, gamma_orig)
+    (deltaB, gammaB) = gammaOnArmToBase(deltaA, gammaA, alpha)
+    (deltaA, gammaA) = gammaOnBaseToArm(deltaB, gammaB, alpha)
+    if ((not radeq(deltaA, delta_orig, TOLERANCE)) or
+        (not radeq(gammaA, gamma_orig, TOLERANCE))):
+        s = "\nArm-Base-Arm reciprocity\n"
+        s += "alpha=%f\n" % (alpha * TODEG,)
+        s += ("   (deltaA, gammaA) = (%f, %f)\n" %
+              (delta_orig * TODEG, gamma_orig * TODEG))
+        s += (" ->(deltaB, gammaB) = (%f, %f)\n" %
+              (deltaB * TODEG, gammaB * TODEG))
+        s += (" ->(deltaA, gammaA) = (%f, %f)\n" %
+              (deltaA * TODEG, gammaA * TODEG))
+        raise AssertionError(s)
+
+
+def test_generator_for_cases():
+    for alpha in [-89.9, -45, -1, 0, 1, 45, 89.9]:
+        for gamma in [-89.9, -46, -45, -44, -1, 0, 1, 44, 45, 46, 89.9]:
+            for delta in [-179.9, -135, -91, -89.9, -89, -46, -45, -44, -1, 0,
+                          1, 44, 45, 46, 89, 89.9, 91, 135, 179.9]:
+                yield (checkGammaOnArmToBase, alpha * TORAD, delta * TORAD,
+                       gamma * TORAD)
+                yield (checkArmBaseArmReciprocity, alpha * TORAD,
+                       delta * TORAD, gamma * TORAD)
+
+
+class TestFiveCirclePlugin(object):
+
+    def setup_method(self):
+        self.geometry = Fivec()
+
+    def testGetName(self):
+        assert self.geometry.name == "fivec"
+
+    def testPhysicalAnglesToInternalPosition(self):
+        expected = self.geometry.physical_angles_to_internal_position(
+            (1, 2, 4, 5, 6))
+        assert VliegPosition(1, 2, 0, 4, 5, 6) == expected
+
+    def testInternalPositionToPhysicalAngles(self):
+        result = self.geometry.internal_position_to_physical_angles(
+            VliegPosition(1, 2, 0, 4, 5, 6))
+        assert (norm(matrix([[1, 2, 4, 5, 6]]) - (matrix([list(result)])))
+                < 0.001)
+
+    def testSupportsModeGroup(self):
+        assert self.geometry.supports_mode_group('fourc')
+        assert not self.geometry.supports_mode_group('fivecFixedAlpha')
+        assert self.geometry.supports_mode_group('fivecFixedGamma')
+
+    def testGetFixedParameters(self):
+        self.geometry.fixed_parameters  # check for exceptions
+
+    def testisParamaterFixed(self):
+        assert not self.geometry.parameter_fixed('made up parameter')
+        assert self.geometry.parameter_fixed('gamma')
+
+
+class TestFourCirclePlugin(object):
+
+    def setup_method(self):
+        self.geometry = Fourc()
+
+    def testGetName(self):
+        assert self.geometry.name == "fourc"
+
+    def testPhysicalAnglesToInternalPosition(self):
+        expected = self.geometry.physical_angles_to_internal_position((2, 4, 5, 6))
+        assert VliegPosition(0, 2, 0, 4, 5, 6) == expected
+
+    def testInternalPositionToPhysicalAngles(self):
+        result = self.geometry.internal_position_to_physical_angles(
+            VliegPosition(0, 2, 0, 4, 5, 6))
+        assert (norm(matrix([[2, 4, 5, 6]]) - matrix([list(result)]))
+                     < 0.001)
+
+    def testSupportsModeGroup(self):
+        assert self.geometry.supports_mode_group('fourc')
+        assert not self.geometry.supports_mode_group('fivecFixedAlpha')
+        assert not self.geometry.supports_mode_group('fivecFixedGamma')
+
+    def testGetFixedParameters(self):
+        self.geometry.fixed_parameters  # check for exceptions
+
+    def testisParamaterFixed(self):
+        assert not self.geometry.parameter_fixed('made up parameter')
+        assert self.geometry.parameter_fixed('gamma')
+        assert self.geometry.parameter_fixed('alpha')

script/__Lib/diffcalc_old/test/diffcalc/hkl/vlieg/test_hkl.py

@@ -0,0 +1,84 @@
+###
+# Copyright 2008-2011 Diamond Light Source Ltd.
+# This file is part of Diffcalc.
+#
+# Diffcalc is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# Diffcalc is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Diffcalc.  If not, see <http://www.gnu.org/licenses/>.
+###
+
+import unittest
+
+from mock import Mock
+
+import diffcalc.util  # @UnusedImport to overide raw_input
+from diffcalc.hkl.vlieg.geometry import SixCircleGammaOnArmGeometry
+from diffcalc.hardware import DummyHardwareAdapter
+from diffcalc.util import MockRawInput
+from diffcalc.hkl.vlieg.calc import VliegHklCalculator
+from diffcalc.ub.calc import UBCalculation
+from diffcalc.ub.persistence import UbCalculationNonPersister
+import pytest
+
+try:
+    from gdascripts.pd.dummy_pds import DummyPD  # @UnusedImport
+except ImportError:
+    from diffcalc.gdasupport.minigda.scannable import DummyPD
+
+
+def prepareRawInput(listOfStrings):
+    diffcalc.util.raw_input = MockRawInput(listOfStrings)
+
+prepareRawInput([])
+
+
+class TestHklCommands(object):
+
+    def setup_method(self):
+        self.geometry = SixCircleGammaOnArmGeometry()
+        dummy = 'alpha', 'delta', 'gamma', 'omega', 'chi', 'phi'
+        self.hardware = DummyHardwareAdapter(dummy)
+        self.mock_ubcalc = Mock(spec=UBCalculation)
+        self.hklcalc = VliegHklCalculator(self.mock_ubcalc, self.geometry,
+                                          self.hardware, True)
+        from diffcalc import settings
+        settings.hardware = self.hardware
+        settings.geometry = self.geometry
+        settings.ubcalc_persister = UbCalculationNonPersister()
+        
+        from diffcalc.hkl.vlieg import hkl
+        reload(hkl)
+        hkl.hklcalc = self.hklcalc
+        self.hkl = hkl
+        prepareRawInput([])
+
+    def testHklmode(self):
+        with pytest.raises(TypeError):
+            self.hkl.hklmode(1, 2)
+        with pytest.raises(ValueError):
+            self.hkl.hklmode('unwanted_string')
+        print self.hkl.hklmode()
+        print self.hkl.hklmode(1)
+
+    def testSetWithString(self):
+        self.hkl.setpar()
+        self.hkl.setpar('alpha')
+        self.hkl.setpar('alpha', 1)
+        self.hkl.setpar('alpha', 1.1)
+        pm = self.hkl.hklcalc.parameter_manager
+        assert pm.get_constraint('alpha') == 1.1
+
+    def testSetWithScannable(self):
+        alpha = DummyPD('alpha')
+        self.hkl.setpar(alpha, 1.1)
+        pm = self.hkl.hklcalc.parameter_manager
+        assert pm.get_constraint('alpha') == 1.1

script/__Lib/diffcalc_old/test/diffcalc/hkl/vlieg/test_transform.py

@@ -0,0 +1,463 @@
+###
+# Copyright 2008-2011 Diamond Light Source Ltd.
+# This file is part of Diffcalc.
+#
+# Diffcalc is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# Diffcalc is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Diffcalc.  If not, see <http://www.gnu.org/licenses/>.
+###
+
+from nose.tools import eq_
+import unittest
+
+from mock import Mock
+
+from diffcalc.hkl.vlieg.geometry import SixCircleGammaOnArmGeometry
+from diffcalc.hardware import DummyHardwareAdapter
+from diffcalc.hkl.vlieg.geometry import VliegPosition as P, \
+   VliegPosition as Pos
+from diffcalc.hkl.vlieg.transform import TransformA, TransformB, TransformC, \
+    transformsFromSector, TransformCommands, \
+    VliegTransformSelector, VliegPositionTransformer
+import diffcalc.util  # @UnusedImport
+import pytest
+
+
+class TestVliegPositionTransformer(object):
+
+    def setup_method(self):
+        names = 'a', 'd', 'g', 'o', 'c', 'phi'
+        self.hardware = DummyHardwareAdapter(names)
+        self.geometry = SixCircleGammaOnArmGeometry()
+
+        self.transform_selector = VliegTransformSelector()
+        self.transformer = VliegPositionTransformer(
+            self.geometry, self.hardware, self.transform_selector)
+        self.transform_commands = TransformCommands(self.transform_selector)
+
+        diffcalc.util.RAISE_EXCEPTIONS_FOR_ALL_ERRORS = True
+
+    def map(self, pos):  # @ReservedAssignment
+        pos = self.transformer.transform(pos)
+        angle_tuple = self.geometry.internal_position_to_physical_angles(pos)
+        angle_tuple = self.hardware.cut_angles(angle_tuple)
+        return angle_tuple
+
+    def testMapDefaultSector(self):
+
+        eq_(self.map(Pos(1, 2, 3, 4, 5, 6)),
+            (1, 2, 3, 4, 5, 6))
+
+        eq_(self.map(Pos(-180, -179, 0, 179, 180, 359)),
+            (-180, -179, 0, 179, 180, 359))
+
+        eq_(self.map(Pos(0, 0, 0, 0, 0, 0)),
+            (0, 0, 0, 0, 0, 0))
+
+        eq_(self.map(Pos(-270, 270, 0, 0, 0, -90)),
+            (90, -90, 0, 0, 0, 270))
+
+    def testMapSector1(self):
+        self.transform_commands._sectorSelector.setSector(1)
+
+        eq_(self.map(Pos(1, 2, 3, 4, 5, 6)),
+            (1, 2, 3, 4 - 180, -5, (6 - 180) + 360))
+
+        eq_(self.map(Pos(-180, -179, 0, 179, 180, 359)),
+            (-180, -179, 0, 179 - 180, -180, 359 - 180))
+
+        eq_(self.map(Pos(0, 0, 0, 0, 0, 0)),
+            (0, 0, 0, 0 - 180, 0, (0 - 180) + 360))
+
+        eq_(self.map(Pos(-270, 270, 0, 0, 0, -90)),
+            (90, -90, 0, 0 - 180, 0, 270 - 180))
+
+    def testMapAutoSector(self):
+        self.transform_commands._sectorSelector.addAutoTransorm(1)
+        self.hardware.set_lower_limit('c', 0)
+
+        eq_(self.map(Pos(1, 2, 3, 4, -5, 6)),
+            (1, 2, 3, 4 - 180, 5, (6 - 180) + 360))
+
+        eq_(self.map(Pos(-180, -179, 0, 179, -180, 359)),
+            (-180, -179, 0, 179 - 180, 180, 359 - 180))
+
+        eq_(self.map(Pos(0, 0, 0, 0, -5, 0)),
+            (0, 0, 0, 0 - 180, 5, (0 - 180) + 360))
+
+        eq_(self.map(Pos(-270, 270, 0, 0, -5, -90)),
+            (90, -90, 0, 0 - 180, 5, 270 - 180))
+
+    def testTransform(self):
+        # mapper
+        self.transform_commands.transform()  # should print its state
+        with pytest.raises(TypeError):
+            self.transform_commands.transform(1)
+        with pytest.raises(TypeError):
+            self.transform_commands.transform('a', 1)
+
+    def testTransformsOnOff(self):
+        # transforma [on/off/auto/manual]
+        ss = self.transform_commands._sectorSelector
+        self.transform_commands.transforma()  # should print mapper state
+        eq_(ss.transforms, [], "test assumes transforms are off to start")
+        self.transform_commands.transforma('on')
+        eq_(ss.transforms, ['a'])
+        self.transform_commands.transformb('on')
+        eq_(ss.transforms, ['a', 'b'])
+        self.transform_commands.transformc('off')
+        eq_(ss.transforms, ['a', 'b'])
+        self.transform_commands.transformb('off')
+        eq_(ss.transforms, ['a'])
+
+    def testTransformsAuto(self):
+        ss = self.transform_commands._sectorSelector
+        eq_(ss.autotransforms, [], "test assumes transforms are off to start")
+        self.transform_commands.transforma('auto')
+        eq_(ss.autotransforms, ['a'])
+        self.transform_commands.transformb('auto')
+        eq_(ss.autotransforms, ['a', 'b'])
+        self.transform_commands.transformc('manual')
+        eq_(ss.autotransforms, ['a', 'b'])
+        self.transform_commands.transformb('manual')
+        eq_(ss.autotransforms, ['a'])
+
+    def testTransformsBadInput(self):
+        transforma = self.transform_commands.transforma
+        with pytest.raises(TypeError):
+            transforma(1)
+        with pytest.raises(TypeError):
+            transforma('not_valid')
+        with pytest.raises(TypeError):
+            transforma('auto', 1)
+
+    def testSector(self):
+        #sector [0-7]
+        ss = self.transform_commands._sectorSelector
+        self.transform_commands.sector()  # should print mapper state
+        eq_(ss.sector, 0, "test assumes sector is 0 to start")
+        self.transform_commands.sector(1)
+        eq_(ss.sector, 1)
+        with pytest.raises(TypeError):
+            self.transform_commands.sector(1, 2)
+        with pytest.raises(TypeError):
+            self.transform_commands.sector('a')
+
+    def testAutosectors(self):
+        #autosector [0-7]
+        ss = self.transform_selector
+        self.transform_commands.autosector()  # should print mapper state
+        eq_(ss.autosectors, [], "test assumes no auto sectors to start")
+        self.transform_commands.autosector(1)
+        eq_(ss.autosectors, [1])
+        self.transform_commands.autosector(1, 2)
+        eq_(ss.autosectors, [1, 2])
+        self.transform_commands.autosector(1)
+        eq_(ss.autosectors, [1])
+        self.transform_commands.autosector(3)
+        eq_(ss.autosectors, [3])
+        with pytest.raises(TypeError):
+            self.transform_commands.autosector(1, 'a')
+        with pytest.raises(TypeError):
+            self.transform_commands.autosector('a')
+
+
+class MockLimitChecker(object):
+
+    def __init__(self):
+        self.okay = True
+
+    def isPoswithiLimits(self, pos):
+        return self.okay
+
+    def isDeltaNegative(self, pos):
+        return pos.delta <= 0
+
+
+class TestVliegTransformSelector(object):
+
+    def setup_method(self):
+        self.limitChecker = MockLimitChecker()
+        self.ss = VliegTransformSelector()
+        self.ss.limitCheckerFunction = self.limitChecker.isPoswithiLimits
+
+    def test__init__(self):
+        assert (self.ss.sector, 0)
+
+    def testCutPosition(self):
+        d = .1
+        tocut = P(-180., 180., 180. - d, 180. + d, -180. + d, -180. - d)
+        expected = P(-180., 180., 180. - d, -180. + d, -180. + d, 180. - d)
+        assert (self.ss.cutPosition(tocut) == expected)
+
+    def testTransformNWithoutCut(self):
+        pos = P(1, 2, 3, 4, 5, 6)
+        assert (self.ss.transformNWithoutCut(0, pos) == pos)
+
+    def testTransformPosition(self):
+        pos = P(0 - 360, .1 + 360, .2 - 360, .3 + 360, .4, 5)
+        res = self.ss.transformPosition(pos)
+        des = P(0, .1, .2, .3, .4, 5)
+        assert (res == des, '%s!=\n%s' % (res, des))
+
+    def testSetSector(self):
+        self.ss.setSector(4)
+        assert (self.ss.sector, 4)
+        assert (self.ss.transforms, ['b', 'c'])
+
+    def testSetTransforms(self):
+        self.ss.setTransforms(('c', 'b'))
+        assert (self.ss.sector, 4)
+        assert (self.ss.transforms, ['b', 'c'])
+
+    def testAddAutoTransormWithBadInput(self):
+        assert (self.ss.autosectors, [])
+        assert (self.ss.autotransforms, [])
+        with pytest.raises(ValueError):
+            self.ss.addAutoTransorm('not transform')
+        with pytest.raises(ValueError):
+            self.ss.addAutoTransorm(9999)
+        with pytest.raises(ValueError):
+            self.ss.addAutoTransorm([])
+
+    def testAddAutoTransormWithTransforms(self):
+        self.ss.autosectors = [1, 2, 3, 4, 5]
+        self.ss.addAutoTransorm('a')
+        print "Should now print a warning..."
+        self.ss.addAutoTransorm('a')  # twice
+        self.ss.addAutoTransorm('b')
+        assert (self.ss.autosectors, [])
+        assert (self.ss.autotransforms, ['a', 'b'])
+
+    def testAddAutoTransormWithSectors(self):
+        self.ss.autotransforms = ['a', 'c']
+        self.ss.addAutoTransorm(2)
+        print "Should now print a warning..."
+        self.ss.addAutoTransorm(2)  # twice
+        self.ss.addAutoTransorm(3)
+        assert (self.ss.autosectors, [2, 3])
+        assert (self.ss.autotransforms, [])
+
+    def testis_position_within_limits(self):
+        assert (self.ss.is_position_within_limits(None), True)
+        self.limitChecker.okay = False
+        assert (self.ss.is_position_within_limits(None), False)
+
+    def test__repr__(self):
+        self.ss.setSector(0)
+        print "************************"
+        print self.ss
+        print "************************"
+        self.ss.setTransforms('a')
+        print self.ss
+        print "************************"
+        self.ss.setTransforms(('a', 'b', 'c'))
+        print self.ss
+        print "************************"
+
+
+class TestSectorSelectorAutoCode(object):
+
+    def setup_method(self):
+        self.limitChecker = MockLimitChecker()
+        self.ss = VliegTransformSelector()
+        self.ss.limitCheckerFunction = self.limitChecker.isDeltaNegative
+        self.pos = P(0, .1, .2, .3, .4, 5)
+        self.pos_in2 = self.ss.cutPosition(
+            self.ss.transformNWithoutCut(2, self.pos))
+        self.pos_in3 = self.ss.cutPosition(
+            self.ss.transformNWithoutCut(3, self.pos))
+
+    def testAddautoTransformWithSectors(self):
+        self.ss.addAutoTransorm(2)
+        self.ss.addAutoTransorm(3)
+        assert (self.ss.autosectors, [2, 3])
+        assert (self.ss.autotransforms, [])
+        self.ss.removeAutoTransform(3)
+        assert (self.ss.autosectors, [2])
+
+    def testAddautoTransformTransforms(self):
+        self.ss.addAutoTransorm('a')
+        self.ss.addAutoTransorm('b')
+        assert (self.ss.autosectors, [])
+        assert (self.ss.autotransforms, ['a', 'b'])
+
+    def testRemoveAutoTransformWithSectors(self):
+        self.ss.addAutoTransorm(2)
+        self.ss.addAutoTransorm(3)
+        self.ss.removeAutoTransform(3)
+        assert (self.ss.autosectors, [2])
+        self.ss.removeAutoTransform(2)
+        assert (self.ss.autosectors, [])
+
+    def testRemoveAutoTransformTransforms(self):
+        self.ss.addAutoTransorm('a')
+        self.ss.addAutoTransorm('b')
+        self.ss.removeAutoTransform('b')
+        assert (self.ss.autotransforms, ['a'])
+        self.ss.removeAutoTransform('a')
+        assert (self.ss.autotransforms, [])
+
+    def testTransformPosition(self):
+        # Check that with no transforms set to autoapply, the limit
+        # checker function is ignored
+        ss = VliegTransformSelector()
+        ss.limitCheckerFunction = self.limitChecker.isPoswithiLimits
+        self.limitChecker.okay = False
+        ss.transformPosition(P(0, .1, .2, .3, .4, 5))
+
+    def testMockLimitChecker(self):
+        assert not self.limitChecker.isDeltaNegative(P(0, .1, .2, .3, .4, 5))
+        assert self.limitChecker.isDeltaNegative(P(0, -.1, .2, .3, .4, 5))
+
+    def testAutoTransformPositionWithSectors(self):
+        self.ss.addAutoTransorm(2)
+        print "Should print 'INFO: Autosector changed sector from 0 to 2':"
+        result = self.ss.autoTransformPositionBySector(self.pos)
+        assert (result == self.pos_in2)
+        assert (self.ss.sector, 2)
+
+    def testAutoTransformPositionWithSectorChoice(self):
+        self.ss.addAutoTransorm(2)
+        self.ss.addAutoTransorm(3)
+        print "Should print 'WARNING: Autosector found multiple sectors...':"
+        print "Should print 'INFO: Autosector changed sector from 0 to 2':"
+        result = self.ss.autoTransformPositionBySector(self.pos)
+        assert (result == self.pos_in2)
+        assert (self.ss.sector, 2)
+
+    def testAutoTransformPositionWithSectorsFails(self):
+        self.ss.addAutoTransorm(0)
+        self.ss.addAutoTransorm(1)
+        self.ss.addAutoTransorm(4)
+        self.ss.addAutoTransorm(5)
+        print "Should print 'INFO: Autosector changed sector from 0 to 2':"
+        with pytest.raises(Exception):
+            self.ss.autoTransformPositionBySector(self.pos)
+        #self.ss.autoTransformPositionBySector(self.pos)
+        assert (self.ss.sector, 0)  # unchanged
+
+    def testCreateListOfPossibleTransforms(self):
+        self.ss.addAutoTransorm('a')
+        assert (self.ss.createListOfPossibleTransforms(),
+                          [(), ['a', ]])
+        self.ss.addAutoTransorm('b')
+        assert (self.ss.createListOfPossibleTransforms(),
+                          [(), ['b', ], ['a', ], ['a', 'b']])
+        self.ss.transforms = ['a', 'c']
+
+    def testAutoTransformPositionWithTransforms(self):
+        self.ss.addAutoTransorm('a')
+        print "Should print 'INFO: ':"
+        result = self.ss.autoTransformPositionByTransforms(self.pos)
+        assert (result == self.pos_in2)
+        assert (self.ss.sector, 2)
+
+    def testAutoTransformPositionWithTansformsChoice(self):
+        self.ss.addAutoTransorm('a')
+        self.ss.addAutoTransorm('c')
+        print "Should print 'WARNING:':"
+        print "Should print 'INFO: ':"
+        result = self.ss.autoTransformPositionByTransforms(self.pos)
+        assert (result == self.pos_in2)
+        assert (self.ss.sector, 2)
+
+    def testTransformPositionWithAutoTransforms(self):
+        self.ss.addAutoTransorm('a')
+        assert (self.ss.transformPosition(self.pos) == self.pos_in2)
+        assert (self.ss.sector, 2)
+        print "Should not print 'INFO...'"
+        assert (self.ss.transformPosition(self.pos) == self.pos_in2)
+        assert (self.ss.sector, 2)
+
+    def testTransformPositionWithAutoTransforms2(self):
+        self.ss.addAutoTransorm(2)
+        assert (self.ss.transformPosition(self.pos) == self.pos_in2)
+        assert (self.ss.sector, 2)
+        print "Should not print 'INFO...'"
+        assert (self.ss.transformPosition(self.pos) == self.pos_in2)
+        assert (self.ss.sector, 2)
+
+    def test__repr__(self):
+        self.ss.setSector(0)
+        print "************************"
+        print self.ss
+        print "************************"
+        self.ss.setTransforms('a')
+        print self.ss
+        print "************************"
+        self.ss.setTransforms(('a', 'b', 'c'))
+        print self.ss
+        print "************************"
+
+        self.ss.addAutoTransorm(1)
+        self.ss.addAutoTransorm(2)
+        self.ss.addAutoTransorm(3)
+        print self.ss
+        print "************************"
+        self.ss.addAutoTransorm('a')
+        self.ss.addAutoTransorm('c')
+        print self.ss
+        print "************************"
+
+
+class TestTransforms(object):
+
+    def setup_method(self):
+        self.limitCheckerFunction = Mock()
+        self.ss = VliegTransformSelector()
+        self.ss.limitCheckerFunction = self.limitCheckerFunction
+
+    def applyTransforms(self, transforms, pos):
+        result = pos.clone()
+        for transform in transforms:
+            if transform == 'a':
+                result = TransformA().transform(result)
+            if transform == 'b':
+                result = TransformB().transform(result)
+            if transform == 'c':
+                result = TransformC().transform(result)
+        return self.ss.cutPosition(result)
+
+    def _testTransformN(self, n):
+        transforms = transformsFromSector[n]
+        pos = P(1, 2, 3, 4, 5, 6)
+        self.ss.setSector(n)
+        fromss = self.ss.transformPosition(pos)
+        fromhere = self.applyTransforms(transforms, pos)
+        assert (fromss == fromhere,
+                     ("sector: %i\ntransforms:%s\n%s !=\n%s" %
+                      (n, transforms, fromss, fromhere)))
+
+    def testTransform0(self):
+        self._testTransformN(0)
+
+    def testTransform1(self):
+        self._testTransformN(1)
+
+    def testTransform2(self):
+        self._testTransformN(2)
+
+    def testTransform3(self):
+        self._testTransformN(3)
+
+    def testTransform4(self):
+        self._testTransformN(5)
+
+    def testTransform5(self):
+        self._testTransformN(5)
+
+    def testTransform6(self):
+        self._testTransformN(6)
+
+    def testTransform7(self):
+        self._testTransformN(7)

script/__Lib/diffcalc_old/test/diffcalc/hkl/willmot/test_calcwill.py

@@ -0,0 +1,323 @@
+###
+# Copyright 2008-2011 Diamond Light Source Ltd.
+# This file is part of Diffcalc.
+#
+# Diffcalc is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# Diffcalc is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Diffcalc.  If not, see <http://www.gnu.org/licenses/>.
+###
+
+# TODO: class largely copied from test_calc
+
+from math import pi
+from mock import Mock
+from nose.tools import raises
+
+try:
+    from numpy import matrix
+except ImportError:
+    from numjy import matrix
+
+from diffcalc.hkl.willmott.calc import \
+    WillmottHorizontalUbCalcStrategy, WillmottHorizontalCalculator, \
+    WillmottHorizontalPosition as Pos, WillmottHorizontalGeometry
+from test.tools import assert_array_almost_equal, \
+    assert_second_dict_almost_in_first, matrixeq_
+from diffcalc.ub.calc import UBCalculation
+from diffcalc.ub.crystal import CrystalUnderTest
+from diffcalc.ub.persistence import UbCalculationNonPersister
+from diffcalc.util import DiffcalcException
+from test.diffcalc.test_hardware import SimpleHardwareAdapter
+from test.diffcalc.hkl.vlieg.test_calc import createMockUbcalc, \
+    createMockDiffractometerGeometry
+import diffcalc.hkl.willmott.calc  # @UnusedImport
+
+TORAD = pi / 180
+TODEG = 180 / pi
+
+
+class _BaseTest():
+
+    def setup_method(self):
+        self.mock_ubcalc = createMockUbcalc(None)
+        self.mock_geometry = createMockDiffractometerGeometry()
+        self.mock_hardware = SimpleHardwareAdapter(
+                             ['delta', 'gamma', 'omegah', 'phi'])
+        self.constraints = Mock()
+        self.calc = WillmottHorizontalCalculator(self.mock_ubcalc,
+                    self.mock_geometry, self.mock_hardware, self.constraints)
+
+        self.places = 12
+
+    def _check_hkl_to_angles(self, testname, zrot, yrot, hkl, pos_expected,
+                             wavelength, virtual_expected={}):
+        print ('_check_hkl_to_angles(%s, %.1f, %.1f, %s, %s, %.2f, %s)'
+               % (testname, zrot, yrot, hkl, pos_expected, wavelength,
+                  virtual_expected))
+        self.zrot, self.yrot = zrot, yrot
+        self._configure_ub()
+        pos, virtual = self.calc.hklToAngles(hkl[0], hkl[1], hkl[2],
+                                             wavelength)
+        assert_array_almost_equal(pos.totuple(), pos_expected.totuple(),
+                                  self.places)
+        assert_second_dict_almost_in_first(virtual, virtual_expected)
+
+    def _check_angles_to_hkl(self, testname, zrot, yrot, hkl_expected, pos,
+                             wavelength, virtual_expected={}):
+        print ('_check_angles_to_hkl(%s, %.1f, %.1f, %s, %s, %.2f, %s)' %
+               (testname, zrot, yrot, hkl_expected, pos, wavelength,
+                virtual_expected))
+        self.zrot, self.yrot = zrot, yrot
+        self._configure_ub()
+        hkl, virtual = self.calc.anglesToHkl(pos, wavelength)
+        assert_array_almost_equal(hkl, hkl_expected, self.places)
+        assert_second_dict_almost_in_first(virtual, virtual_expected)
+
+    @raises(DiffcalcException)
+    def _check_hkl_to_angles_fails(self, *args):
+        self._check_hkl_to_angles(*args)
+
+
+# Primary and secondary reflections found with the help of DDIF on Diamond's
+# i07 on Jan 27 2010
+
+Si_5_5_12_WAVELENGTH = 0.6358
+Si_5_5_12_HKL0 = 2, 19, 32
+Si_5_5_12_REF0 = Pos(delta=21.975, gamma=4.419, omegah=2, phi=326.2)
+Si_5_5_12_HKL1 = 0, 7, 22
+Si_5_5_12_REF1 = Pos(delta=11.292, gamma=2.844, omegah=2, phi=124.1)
+
+# This is U matrix displayed by DDIF
+U_FROM_DDIF = matrix([[0.233140, 0.510833, 0.827463],
+                      [-0.65596, -0.545557, 0.521617],
+                      [0.717888, -0.664392, 0.207894]])
+
+# This is the version that Diffcalc comes up with ( see following test)
+Si_5_5_12_U_DIFFCALC = matrix([[-0.7178876, 0.6643924, -0.2078944],
+                     [-0.6559596, -0.5455572, 0.5216170],
+                     [0.2331402, 0.5108327, 0.8274634]])
+
+
+class TestUBCalculationWithWillmotStrategy_Si_5_5_12():
+
+    def setup_method(self):
+        hardware = Mock()
+        hardware.get_axes_names.return_value = ('d', 'g', 'oh', 'p')
+        self.ubcalc = UBCalculation(hardware, WillmottHorizontalGeometry(),
+                                    UbCalculationNonPersister(),
+                                    WillmottHorizontalUbCalcStrategy())
+
+    def testAgainstResultsFromJan_27_2010(self):
+        self.ubcalc.start_new('test')
+        self.ubcalc.set_lattice('Si_5_5_12', 7.68, 53.48, 75.63, 90, 90, 90)
+        self.ubcalc.add_reflection(
+            Si_5_5_12_HKL0[0], Si_5_5_12_HKL0[1], Si_5_5_12_HKL0[2],
+            Si_5_5_12_REF0, 12.39842 / Si_5_5_12_WAVELENGTH, 'ref0', None)
+        self.ubcalc.add_reflection(
+            Si_5_5_12_HKL1[0], Si_5_5_12_HKL1[1], Si_5_5_12_HKL1[2],
+            Si_5_5_12_REF1, 12.39842 / Si_5_5_12_WAVELENGTH, 'ref1', None)
+        self.ubcalc.calculate_UB()
+        print "U: ", self.ubcalc.U
+        print "UB: ", self.ubcalc.UB
+        matrixeq_(self.ubcalc.U, Si_5_5_12_U_DIFFCALC)
+
+
+class TestSurfaceNormalVertical_Si_5_5_12_PosGamma(_BaseTest):
+
+    def setup_method(self):
+        _BaseTest.setup_method(self)
+        self.constraints.reference = {'betain': 2}
+        self.wavelength = 0.6358
+        B = CrystalUnderTest('xtal', 7.68, 53.48,
+                             75.63, 90, 90, 90).B
+        self.UB = Si_5_5_12_U_DIFFCALC * B
+        diffcalc.hkl.willmott.calc.CHOOSE_POSITIVE_GAMMA = True
+
+    def _configure_ub(self):
+        self.mock_ubcalc.UB = self.UB
+
+    def _check(self, hkl, pos, virtual_expected={}, fails=False):
+        self._check_angles_to_hkl('', 999, 999, hkl, pos, self.wavelength,
+                                  virtual_expected)
+        if fails:
+            self._check_hkl_to_angles_fails('', 999, 999, hkl, pos,
+                                            self.wavelength, virtual_expected)
+        else:
+            self._check_hkl_to_angles('', 999, 999, hkl, pos, self.wavelength,
+                                      virtual_expected)
+
+    def testHkl_2_19_32_found_orientation_setting(self):
+        '''Check that the or0 reflection maps back to the assumed hkl'''
+        self.places = 2
+        self._check_angles_to_hkl('', 999, 999, Si_5_5_12_HKL0,
+                        Si_5_5_12_REF0,
+                        self.wavelength, {'betain': 2})
+
+    def testHkl_0_7_22_found_orientation_setting(self):
+        '''Check that the or1 reflection maps back to the assumed hkl'''
+        self.places = 0
+        self._check_angles_to_hkl('', 999, 999, Si_5_5_12_HKL1,
+                        Si_5_5_12_REF1,
+                        self.wavelength, {'betain': 2})
+
+    def testHkl_2_19_32_calculated_from_DDIF(self):
+        self.places = 3
+        self._check((2, 19, 32),
+                    Pos(delta=21.974, gamma=4.419, omegah=2, phi=-33.803),
+                    {'betain': 2})
+
+    def testHkl_0_7_22_calculated_from_DDIF(self):
+        self.places = 3
+        self._check((0, 7, 22),
+                    Pos(delta=11.242, gamma=3.038, omegah=2, phi=123.064),
+                    {'betain': 2})
+
+    def testHkl_2_m5_12_calculated_from_DDIF(self):
+        self.places = 3
+        self._check((2, -5, 12),
+                    Pos(delta=5.224, gamma=10.415, omegah=2, phi=-1.972),
+                    {'betain': 2})
+
+# conlcusion:
+# given or1 from testHkl_2_19_32_found_orientation_setting and,
+# or1 from testHkl_0_7_22_found_orientation_setting
+# we can calculate a U matrix which agrees with that from diff except for
+# signs and row order
+# We can also calculate values for 2_19_32 and 0_7_22 that match those
+# calculated by DDIF to the number of recorded decimal places (3)
+
+
+class SkipTestSurfaceNormalVertical_Si_5_5_12_NegGamma(
+    TestSurfaceNormalVertical_Si_5_5_12_PosGamma):
+    """When choosing -ve gamma delta ends up being -ve too"""
+    def setup_method(self):
+        _BaseTest.setup_method(self)
+        self.constraints.reference = {'betain': 2 * TORAD}
+        self.wavelength = 0.6358
+        B = CrystalUnderTest('xtal', 7.68, 53.48,
+                             75.63, 90, 90, 90).B
+        self.UB = Si_5_5_12_U_DIFFCALC * B
+        diffcalc.hkl.willmott.calc.CHOOSE_POSITIVE_GAMMA = False
+
+
+##################################################################
+
+# Primary and secondary reflections found with the help of DDIF on Diamond's
+# i07 on Jan 28/29 2010
+
+
+Pt531_HKL0 = -1.000, 1.000, 6.0000
+Pt531_REF0 = Pos(delta=9.465, gamma=16.301, omegah=2,
+                                  phi=307.94 - 360)
+Pt531_REF0_DIFFCALC = Pos(
+    9.397102509657, 16.181230279320, 2.000000000000, -52.139290474913)
+
+Pt531_HKL1 = -2.000, -1.000, 7.0000
+Pt531_REF1 = Pos(delta=11.094, gamma=11.945, omegah=2, phi=238.991 - 360)
+Pt531_REF1_DIFFCALC = Pos(
+    11.012695836306, 11.863612760237, 2.000000000000, -121.215597507237)
+
+Pt531_HKL2 = 1, 1, 9
+Pt531_REF2 = Pos(delta=14.272, gamma=7.806, omegah=2,
+                                  phi=22.9)
+Pt531_REF2_DIFFCALC = Pos(
+    14.188161709766, 7.758593908726, 2.000000000000, 23.020313153847)
+Pt531_WAVELENGTH = 0.6358
+
+# This is U matrix displayed by DDIF
+U_FROM_DDIF = matrix([[-0.00312594, -0.00063417, 0.99999491],
+                      [0.99999229, -0.00237817, 0.00312443],
+                      [0.00237618, 0.99999697, 0.00064159]])
+
+# This is the version that Diffcalc comes up with ( see following test)
+Pt531_U_DIFFCALC = matrix([[-0.0023763, -0.9999970, -0.0006416],
+                           [0.9999923, -0.0023783, 0.0031244],
+                           [-0.0031259, -0.0006342, 0.9999949]])
+
+
+class TestUBCalculationWithWillmotStrategy_Pt531():
+
+    def setup_method(self):
+        hardware = Mock()
+        hardware.get_axes_names.return_value = ('d', 'g', 'oh', 'p')
+        self.ubcalc = UBCalculation(hardware, WillmottHorizontalGeometry(),
+                                    UbCalculationNonPersister(),
+                                    WillmottHorizontalUbCalcStrategy())
+
+    def testAgainstResultsFromJan_27_2010(self):
+        self.ubcalc.start_new('test')
+        self.ubcalc.set_lattice('Pt531', 6.204, 4.806, 23.215, 90, 90, 49.8)
+        self.ubcalc.add_reflection(
+            Pt531_HKL0[0], Pt531_HKL0[1], Pt531_HKL0[2], Pt531_REF0,
+            12.39842 / Pt531_WAVELENGTH, 'ref0', None)
+        self.ubcalc.add_reflection(
+            Pt531_HKL1[0], Pt531_HKL1[1], Pt531_HKL1[2], Pt531_REF1,
+            12.39842 / Pt531_WAVELENGTH, 'ref1', None)
+        self.ubcalc.calculate_UB()
+        print "U: ", self.ubcalc.U
+        print "UB: ", self.ubcalc.UB
+        matrixeq_(self.ubcalc.U, Pt531_U_DIFFCALC)
+
+
+class TestSurfaceNormalVertical_Pt531_PosGamma(_BaseTest):
+
+    def setup_method(self):
+        _BaseTest.setup_method(self)
+        self.constraints.reference = {'betain': 2}
+        self.wavelength = Pt531_WAVELENGTH
+
+        cut = CrystalUnderTest('Pt531', 6.204, 4.806, 23.215, 90, 90, 49.8)
+        B = cut.B
+        self.UB = Pt531_U_DIFFCALC * B
+        diffcalc.hkl.willmott.calc.CHOOSE_POSITIVE_GAMMA = True
+
+    def _configure_ub(self):
+        self.mock_ubcalc.UB = self.UB
+
+    def _check(self, hkl, pos, virtual_expected={}, fails=False):
+#        self._check_angles_to_hkl('', 999, 999, hkl, pos, self.wavelength,
+#                                  virtual_expected)
+        if fails:
+            self._check_hkl_to_angles_fails('', 999, 999, hkl, pos,
+                                            self.wavelength, virtual_expected)
+        else:
+            self._check_hkl_to_angles('', 999, 999, hkl, pos, self.wavelength,
+                                      virtual_expected)
+
+    def testHkl_0_found_orientation_setting(self):
+        '''Check that the or0 reflection maps back to the assumed hkl'''
+        self.places = 1
+        self._check_angles_to_hkl('', 999, 999, Pt531_HKL0,
+                        Pt531_REF0,
+                        self.wavelength, {'betain': 2})
+
+    def testHkl_1_found_orientation_setting(self):
+        '''Check that the or1 reflection maps back to the assumed hkl'''
+        self.places = 0
+        self._check_angles_to_hkl('', 999, 999, Pt531_HKL1,
+                        Pt531_REF1,
+                        self.wavelength, {'betain': 2})
+
+    def testHkl_0_predicted_versus_found_during_oriantation_phase(self):
+        self._check(Pt531_HKL0,
+                    Pt531_REF0_DIFFCALC,  # inspected as close to Pt531_REF0
+                    {'betain': 2})
+
+    def testHkl_1_predicted_versus_found_during_oriantation_phase(self):
+        self._check(Pt531_HKL1,
+                    Pt531_REF1_DIFFCALC,  # inspected as close to Pt531_REF1,
+                    {'betain': 2})
+
+    def testHkl_2_predicted_versus_found_during_oriantation_phase(self):
+        self._check(Pt531_HKL2,
+                    Pt531_REF2_DIFFCALC,  # inspected as close to Pt531_REF2
+                    {'betain': 2})

script/__Lib/diffcalc_old/test/diffcalc/hkl/you/test_calc.py

@@ -0,0 +1,824 @@
+###
+# Copyright 2008-2011 Diamond Light Source Ltd.
+# This file is part of Diffcalc.
+#
+# Diffcalc is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# Diffcalc is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Diffcalc.  If not, see <http://www.gnu.org/licenses/>.
+###
+
+from math import pi, cos, sin
+from nose.tools import raises
+
+try:
+    from numpy import matrix
+except ImportError:
+    from numjy import matrix
+
+from diffcalc.hkl.you.calc import YouHklCalculator
+from diffcalc.hkl.you.constraints import YouConstraintManager
+from test.tools import assert_array_almost_equal, \
+    assert_second_dict_almost_in_first
+from diffcalc.ub.crystal import CrystalUnderTest
+from diffcalc.util import y_rotation, z_rotation, DiffcalcException
+from test.diffcalc.test_hardware import SimpleHardwareAdapter
+from test.diffcalc.hkl.vlieg.test_calc import \
+    createMockDiffractometerGeometry, createMockUbcalc
+from diffcalc.hkl.you.geometry import YouPosition as Pos, YouPosition as P,\
+    YouPosition
+from test.tools import arrayeq_
+from diffcalc.hkl.you.calc import youAnglesToHkl
+
+TORAD = pi / 180
+TODEG = 180 / pi
+I = matrix('1 0 0; 0 1 0; 0 0 1')
+
+from diffcalc.hkl.you.constraints import NUNAME
+
+class Pair:
+
+    def __init__(self, name, hkl, position, fails=False):
+        self.name = name
+        self.hkl = hkl
+        self.position = position
+        self.fails = fails
+
+
+class _BaseTest():
+
+    def setup_method(self):
+        self.mock_ubcalc = createMockUbcalc(None)
+        self.mock_geometry = createMockDiffractometerGeometry()
+        names = ['delta', NUNAME, 'mu', 'eta', 'chi', 'phi']
+        self.mock_hardware = SimpleHardwareAdapter(names)
+        self.constraints = YouConstraintManager(self.mock_hardware)
+        self.calc = YouHklCalculator(self.mock_ubcalc, self.mock_geometry,
+                                     self.mock_hardware, self.constraints)
+
+        self.mock_hardware.set_lower_limit('delta', 0)
+        self.mock_hardware.set_upper_limit('delta', 179.999)
+        self.mock_hardware.set_lower_limit(NUNAME, 0)
+        self.mock_hardware.set_upper_limit(NUNAME, 179.999)
+        self.mock_hardware.set_lower_limit('mu', 0)
+        self.mock_hardware.set_lower_limit('eta', 0)
+        self.mock_hardware.set_lower_limit('chi', -10)
+
+        self.places = 11
+
+    def _configure_ub(self):
+        ZROT = z_rotation(self.zrot * TORAD)  # -PHI
+        YROT = y_rotation(self.yrot * TORAD)  # +CHI
+        U = ZROT * YROT
+        UB = U * self.B
+        self.mock_ubcalc.UB = UB
+
+    def _check_hkl_to_angles(self, testname, zrot, yrot, hkl, pos_expected,
+                             wavelength, virtual_expected={}):
+        print ('_check_hkl_to_angles(%s, %.1f, %.1f, %s, %s, %.2f, %s)' %
+               (testname, zrot, yrot, hkl, pos_expected, wavelength,
+                virtual_expected))
+        self.zrot, self.yrot = zrot, yrot
+        self._configure_ub()
+        pos, virtual = self.calc.hklToAngles(hkl[0], hkl[1], hkl[2],
+                                             wavelength)
+        assert_array_almost_equal(pos.totuple(), pos_expected.totuple(),
+                                  self.places)
+        assert_second_dict_almost_in_first(virtual, virtual_expected)
+
+    def _check_angles_to_hkl(self, testname, zrot, yrot, hkl_expected, pos,
+                             wavelength, virtual_expected={}):
+        print ('_check_angles_to_hkl(%s, %.1f, %.1f, %s, %s, %.2f, %s)' %
+               (testname, zrot, yrot, hkl_expected, pos, wavelength,
+                virtual_expected))
+        self.zrot, self.yrot = zrot, yrot
+        self._configure_ub()
+        hkl, virtual = self.calc.anglesToHkl(pos, wavelength)
+        assert_array_almost_equal(hkl, hkl_expected, self.places, note="***Test (not diffcalc!) incorrect*** : the desired settings do not map to the target hkl")
+        assert_second_dict_almost_in_first(virtual, virtual_expected)
+
+    @raises(DiffcalcException)
+    def _check_hkl_to_angles_fails(self, *args):
+        self._check_hkl_to_angles(*args)
+
+    def case_generator(self):
+        for case in self.cases:
+            yield (self._check_angles_to_hkl, case.name, self.zrot, self.yrot,
+                   case.hkl, case.position, self.wavelength, {})
+            test_method = (self._check_hkl_to_angles_fails if case.fails else
+                           self._check_hkl_to_angles)
+            yield (test_method, case.name, self.zrot, self.yrot, case.hkl,
+                                case.position, self.wavelength, {})
+
+
+class _TestCubic(_BaseTest):
+
+    def setup_method(self):
+        _BaseTest.setup_method(self)
+        self.B = I * 2 * pi
+
+
+class _TestCubicVertical(_TestCubic):
+
+    def setup_method(self):
+        _TestCubic.setup_method(self)
+
+    def makes_cases(self, zrot, yrot):
+        self.zrot = zrot
+        self.yrot = yrot
+        self.wavelength = 1
+        self.cases = (
+            Pair('100', (1, 0, 0),
+                 Pos(mu=0, delta=60, nu=0, eta=30, chi=0 - self.yrot,
+                     phi=0 + self.zrot)),
+            Pair('100-->001', (cos(4 * TORAD), 0, sin(4 * TORAD)),
+                 Pos(mu=0, delta=60, nu=0, eta=30, chi=4 - self.yrot,
+                     phi=0 + self.zrot),),
+            Pair('010', (0, 1, 0),
+                 Pos(mu=0, delta=60, nu=0, eta=30, chi=0, phi=90 + self.zrot)),
+            Pair('001', (0, 0, 1),
+                 Pos(mu=0, delta=60, nu=0, eta=30, chi=90 - self.yrot,
+                     phi=0 + self.zrot)),
+            Pair('0.1 0 1.5', (0.1, 0, 1.5),  # cover case where delta > 90 !
+                  Pos(mu=0, delta=97.46959231642, nu=0,
+                      eta=97.46959231642/2, chi=86.18592516571 - self.yrot,
+                      phi=0 + self.zrot)),
+            Pair('001-->100', (cos(86 * TORAD), 0, sin(86 * TORAD)),
+                 Pos(mu=0, delta=60, nu=0, eta=30, chi=86 - self.yrot,
+                     phi=0 + self.zrot)),
+        )
+        self.case_dict = {}
+        for case in self.cases:
+            self.case_dict[case.name] = case
+
+    def test_pairs_zrot0_yrot0(self):
+        self.makes_cases(0, 0)
+        self.case_dict['001'].fails = True  # q||n
+        for case_tuple in self.case_generator():
+            yield case_tuple
+
+    def test_pairs_various_zrot_and_yrot0(self):
+        for zrot in [0, 2, -2, 45, -45, 90, -90]:  # -180, 180 work if recut
+            self.makes_cases(zrot, 0)
+            self.case_dict['001'].fails = True  # q||n
+            for case_tuple in self.case_generator():
+                yield case_tuple
+
+    def test_hkl_to_angles_zrot1_yrot2(self):
+        self.makes_cases(1, 2)
+        for case_tuple in self.case_generator():
+            yield case_tuple
+
+    def test_hkl_to_angles_zrot1_yrotm2(self):
+        self.makes_cases(1, -2)
+        for case_tuple in self.case_generator():
+            yield case_tuple
+
+    def testHklDeltaGreaterThan90(self):
+        wavelength = 1            
+        hkl = (0.1, 0, 1.5)
+        pos = P(mu=0, delta=97.46959231642, nu=0,
+                      eta=97.46959231642/2, chi=86.18592516571,
+                      phi=0)
+        self._check_hkl_to_angles('', 0, 0, hkl, pos, wavelength)
+
+
+class TestCubicVertical_aeqb(_TestCubicVertical):
+
+    def setup_method(self):
+        _TestCubicVertical.setup_method(self)
+        self.constraints._constrained = {'a_eq_b': None, 'mu': 0, NUNAME: 0}
+
+
+class TestCubicVertical_psi_90(_TestCubicVertical):
+    '''mode psi=90 should be the same as mode a_eq_b'''
+
+    def setup_method(self):
+        _TestCubicVertical.setup_method(self)
+        self.constraints._constrained = {'psi': 90 * TORAD, 'mu': 0, NUNAME: 0}
+
+
+class TestCubicVertical_qaz_90(_TestCubicVertical):
+    '''mode psi=90 should be the same as mode a_eq_b'''
+
+    def setup_method(self):
+        _TestCubicVertical.setup_method(self)
+        self.constraints._constrained = {'a_eq_b': None, 'mu': 0,
+                                         'qaz': 90 * TORAD}
+
+
+class SkipTestYouHklCalculatorWithCubicMode_aeqb_delta_60(_TestCubicVertical):
+    '''
+    Works to 4-5 decimal places but chooses different solutions when phi||eta .
+    Skip all tests.
+    '''
+
+    def setup_method(self):
+        _TestCubicVertical.setup_method(self)
+        self.constraints._constrained = {'a_eq_b': None, 'mu': 0,
+                                         'delta': 60 * TORAD}
+        self.places = 5
+
+
+class _TestCubicHorizontal(_TestCubic):
+
+    def setup_method(self):
+        _TestCubic.setup_method(self)
+
+    def makes_cases(self, zrot, yrot):
+        self.zrot = zrot
+        self.yrot = yrot
+        self.wavelength = 1
+        self.cases = (
+             Pair('100', (1, 0, 0),
+                  Pos(mu=30, delta=0, nu=60, eta=0, chi=90 + self.yrot,
+                      phi=-180 + self.zrot)),
+             Pair('100-->001', (cos(4 * TORAD), 0, sin(4 * TORAD)),
+                  Pos(mu=30, delta=0, nu=60, eta=0, chi=90 - 4 + self.yrot,
+                      phi=-180 + self.zrot)),
+             Pair('010', (0, 1, 0),
+                  Pos(mu=30, delta=0, nu=60, eta=0, chi=90,
+                      phi=-90 + self.zrot)),  # no yrot as chi||q
+             Pair('001', (0, 0, 1),
+                  Pos(mu=30, delta=0, nu=60, eta=0, chi=0 - self.yrot,
+                      phi=0 + self.zrot)),
+             Pair('001-->100', (cos(86 * TORAD), 0, sin(86 * TORAD)),
+                  Pos(mu=30, delta=0, nu=60, eta=0, chi=0 - 4 - self.yrot,
+                      phi=0 + self.zrot)),
+            )
+        self.case_dict = {}
+        for case in self.cases:
+            self.case_dict[case.name] = case
+
+    def test_pairs_zrot0_yrot0(self):
+        self.makes_cases(0, 0)
+        self.case_dict['001'].fails = True  # q||n
+        self.case_dict['100'].position.phi = 180  # not -180
+        self.case_dict['100-->001'].position.phi = 180  # not -180
+        for case_tuple in self.case_generator():
+            yield case_tuple
+
+#    def test_pairs_various_zrot_and_yrot0(self):
+#        for zrot in [0, 2, -2, 45, -45, 90, -90]:
+# -180, 180 work but with cut problem
+#            self.makes_cases(zrot, 0)
+#            self.case_dict['001'].fails = True # q||n
+#            for case_tuple in self.case_generator():
+#                yield case_tuple
+
+    def test_hkl_to_angles_zrot1_yrot2(self):
+        self.makes_cases(1, 2)
+        for case_tuple in self.case_generator():
+            yield case_tuple
+
+    def test_hkl_to_angles_zrot1_yrotm2(self):
+        self.makes_cases(1, -2)
+        for case_tuple in self.case_generator():
+            yield case_tuple
+
+
+class TestCubicHorizontal_qaz0_aeqb(_TestCubicHorizontal):
+
+    def setup_method(self):
+        _TestCubicHorizontal.setup_method(self)
+        self.constraints._constrained = {'a_eq_b': None, 'qaz': 0, 'eta': 0}
+
+
+class TestCubicHorizontal_delta0_aeqb(_TestCubicHorizontal):
+
+    def setup_method(self):
+        _TestCubicHorizontal.setup_method(self)
+        self.constraints._constrained = {'a_eq_b': None, 'delta': 0, 'eta': 0}
+
+
+class TestAgainstSpecSixcB16_270608(_BaseTest):
+    '''NOTE: copied from test.diffcalc.scenarios.session3'''
+    def setup_method(self):
+        _BaseTest.setup_method(self)
+
+        U = matrix(((0.997161, -0.062217, 0.042420),
+                    (0.062542, 0.998022, -0.006371),
+                    (-0.041940, 0.009006, 0.999080)))
+
+        B = matrix(((1.636204, 0, 0),
+                    (0, 1.636204, 0),
+                    (0, 0, 1.156971)))
+
+        self.UB = U * B
+        self.constraints._constrained = {'a_eq_b': None, 'mu': 0, NUNAME: 0}
+        self.places = 2  # TODO: the Vlieg code got this to 3 decimal places
+
+    def _configure_ub(self):
+        self.mock_ubcalc.UB = self.UB
+
+    def makes_cases(self, zrot, yrot):
+        del zrot, yrot  # not used
+        self.wavelength = 1.24
+        self.cases = (
+            Pair('7_9_13', (0.7, 0.9, 1.3),
+                 Pos(mu=0, delta=27.352179, nu=0, eta=13.676090,
+                     chi=37.774500, phi=53.965500)),
+            Pair('100', (1, 0, 0),
+                 Pos(mu=0, delta=18.580230, nu=0, eta=9.290115,
+                     chi=-2.403500, phi=3.589000)),
+            Pair('010', (0, 1, 0),
+                 Pos(mu=0, delta=18.580230, nu=0, eta=9.290115,
+                     chi=0.516000, phi=93.567000)),
+            Pair('110', (1, 1, 0),
+                 Pos(mu=0, delta=26.394192, nu=0, eta=13.197096,
+                     chi=-1.334500, phi=48.602000)),
+            )
+        self.case_dict = {}
+        for case in self.cases:
+            self.case_dict[case.name] = case
+
+    def case_generator(self):
+        zrot, yrot = 999, 999
+        for case in self.cases:
+            yield (self._check_angles_to_hkl, case.name, zrot, yrot, case.hkl,
+                   case.position, self.wavelength, {})
+            test_method = (self._check_hkl_to_angles_fails if case.fails else
+                           self._check_hkl_to_angles)
+            yield (test_method, case.name, zrot, yrot, case.hkl, case.position,
+                   self.wavelength, {})
+
+    def test_hkl_to_angles_given_UB(self):
+        self.makes_cases(None, None)  # xrot, yrot unused
+        for case_tuple in self.case_generator():
+            yield case_tuple
+
+
+class SkipTestThreeTwoCircleForDiamondI06andI10(_BaseTest):
+    """
+    This is a three circle diffractometer with only delta and omega axes
+    and a chi axis with limited range around 90. It is operated with phi
+    fixed and can only reach reflections with l (or z) component.
+
+    The data here is taken from an experiment performed on Diamonds I06
+    beamline.
+    """
+
+    def setup_method(self):
+        _BaseTest.setup_method(self)
+        self.constraints._constrained = {'phi': -pi / 2, NUNAME: 0, 'mu': 0}
+        self.wavelength = 12.39842 / 1.650
+
+    def _configure_ub(self):
+        U = matrix([[1, 0, 0], [0, 1, 0], [0, 0, 1]])
+        B = CrystalUnderTest('xtal', 5.34, 5.34, 13.2, 90, 90, 90).B
+        self.mock_ubcalc.UB = U * B
+
+    def testHkl001(self):
+        hkl = (0, 0, 1)
+        pos = Pos(mu=0, delta=33.07329403295449, nu=0, eta=16.536647016477247,
+                  chi=90, phi=-90)
+        self._check_angles_to_hkl(
+            '001', 999, 999, hkl, pos, self.wavelength, {})
+        self._check_hkl_to_angles(
+            '001', 999, 999, hkl, pos, self.wavelength, {})
+
+    def testHkl100(self):
+        hkl = (1, 0, 0)
+        pos = Pos(mu=0, delta=89.42926563609406, nu=0, eta=134.71463281804702,
+                  chi=90, phi=-90)
+        self._check_angles_to_hkl(
+            '100', 999, 999, hkl, pos, self.wavelength, {})
+        self._check_hkl_to_angles(
+            '100', 999, 999, hkl, pos, self.wavelength, {})
+
+    def testHkl101(self):
+        hkl = (1, 0, 1)
+        pos = Pos(mu=0, delta=98.74666191021282, nu=0, eta=117.347760720783,
+                  chi=90, phi=-90)
+        self._check_angles_to_hkl(
+            '101', 999, 999, hkl, pos, self.wavelength, {})
+        self._check_hkl_to_angles(
+            '101', 999, 999, hkl, pos, self.wavelength, {})
+
+
+class TestFixedChiPhiPsiMode_DiamondI07SurfaceNormalHorizontal(_TestCubic):
+    """
+    The data here is taken from an experiment performed on Diamonds I07
+    beamline, obtained using Vlieg's DIF software"""
+
+    def setup_method(self):
+        _TestCubic.setup_method(self)
+        self.mock_hardware.set_lower_limit(NUNAME, 0)
+        self.mock_hardware.set_upper_limit('delta', 90)
+        self.constraints._constrained = {'chi': 0, 'phi': 0, 'a_eq_b': None}
+        self.wavelength = 1
+        self.UB = I * 2 * pi
+        self.places = 4
+
+    def _configure_ub(self):
+        self.mock_ubcalc.UB = self.UB
+
+    def _check(self, hkl, pos, virtual_expected={}, fails=False):
+        self._check_angles_to_hkl(
+            '', 999, 999, hkl, pos, self.wavelength, virtual_expected)
+        if fails:
+            self._check_hkl_to_angles_fails(
+                '', 999, 999, hkl, pos, self.wavelength, virtual_expected)
+        else:
+            self._check_hkl_to_angles(
+                '', 999, 999, hkl, pos, self.wavelength, virtual_expected)
+
+    def testHkl001(self):
+        self._check((0, 0, 1),  # betaout=30
+                    P(mu=30, delta=0, nu=60, eta=90, chi=0, phi=0), fails=True)
+
+    def testHkl010(self):
+        self._check((0, 1, 0),  # betaout=0
+                    P(mu=0, delta=60, nu=0, eta=120, chi=0, phi=0))
+
+    def testHkl011(self):
+        self._check((0, 1, 1),  # betaout=30
+                    P(mu=30, delta=54.7356, nu=90, eta=125.2644, chi=0, phi=0))
+
+    def testHkl100(self):
+        self._check((1, 0, 0),  # betaout=0
+                    P(mu=0, delta=60, nu=0, eta=30, chi=0, phi=0))
+
+    def testHkl101(self):
+        self._check((1, 0, 1),  # betaout=30
+                    P(mu=30, delta=54.7356, nu=90, eta=35.2644, chi=0, phi=0))
+
+    def testHkl110(self):
+        self._check((1, 1, 0),  # betaout=0
+                    P(mu=0, delta=90, nu=0, eta=90, chi=0, phi=0))
+
+    def testHkl11nearly0(self):
+        self.places = 3
+        self._check((1, 1, .0001),  # betaout=0
+                    P(mu=0.0029, delta=89.9971, nu=90.0058, eta=90, chi=0,
+                      phi=0))
+
+    def testHkl111(self):
+        self._check((1, 1, 1),  # betaout=30
+                    P(mu=30, delta=54.7356, nu=150, eta=99.7356, chi=0, phi=0))
+
+    def testHklover100(self):
+        self._check((1.1, 0, 0),  # betaout=0
+                    P(mu=0, delta=66.7340, nu=0, eta=33.3670, chi=0, phi=0))
+
+    def testHklunder100(self):
+        self._check((.9, 0, 0),  # betaout=0
+                    P(mu=0, delta=53.4874, nu=0, eta=26.7437, chi=0, phi=0))
+
+    def testHkl788(self):
+        self._check((.7, .8, .8),  # betaout=23.5782
+                    P(mu=23.5782, delta=59.9980, nu=76.7037, eta=84.2591,
+                      chi=0, phi=0))
+
+    def testHkl789(self):
+        self._check((.7, .8, .9),  # betaout=26.7437
+                    P(mu=26.74368, delta=58.6754, nu=86.6919, eta=85.3391,
+                      chi=0, phi=0))
+
+    def testHkl7810(self):
+        self._check((.7, .8, 1),  # betaout=30
+                    P(mu=30, delta=57.0626, nu=96.86590, eta=86.6739, chi=0,
+                      phi=0))
+
+
+class SkipTestFixedChiPhiPsiModeSurfaceNormalVertical(_TestCubic):
+
+    def setup_method(self):
+        _TestCubic.setup_method(self)
+        self.mock_hardware.set_lower_limit(NUNAME, 0)
+        self.constraints._constrained = {'chi': 90 * TORAD, 'phi': 0,
+                                         'a_eq_b': None}
+        self.wavelength = 1
+        self.UB = I * 2 * pi
+        self.places = 4
+
+        self.mock_hardware.set_lower_limit('mu', None)
+        self.mock_hardware.set_lower_limit('eta', None)
+        self.mock_hardware.set_lower_limit('chi', None)
+
+    def _configure_ub(self):
+        self.mock_ubcalc.UB = self.UB
+
+    def _check(self, hkl, pos, virtual_expected={}, fails=False):
+        self._check_angles_to_hkl(
+            '', 999, 999, hkl, pos, self.wavelength, virtual_expected)
+        if fails:
+            self._check_hkl_to_angles_fails(
+                '', 999, 999, hkl, pos, self.wavelength, virtual_expected)
+        else:
+            self._check_hkl_to_angles(
+                '', 999, 999, hkl, pos, self.wavelength, virtual_expected)
+
+    def testHkl001(self):
+        self._check((0, 0, 1),  # betaout=30
+                    P(mu=30, delta=0, nu=60, eta=90, chi=0, phi=0), fails=True)
+
+    def testHkl010(self):
+        self._check((0, 1, 0),  # betaout=0
+                    P(mu=120, delta=0, nu=60, eta=0, chi=90, phi=0))
+
+    def testHkl011(self):
+        self._check((0, 1, 1),  # betaout=30
+                    P(mu=30, delta=54.7356, nu=90, eta=125.2644, chi=0, phi=0))
+
+    def testHkl100(self):
+        self._check((1, 0, 0),  # betaout=0
+                    P(mu=0, delta=60, nu=0, eta=30, chi=0, phi=0))
+
+    def testHkl101(self):
+        self._check((1, 0, 1),  # betaout=30
+                    P(mu=30, delta=54.7356, nu=90, eta=35.2644, chi=0, phi=0))
+
+    def testHkl110(self):
+        self._check((1, 1, 0),  # betaout=0
+                    P(mu=0, delta=90, nu=0, eta=90, chi=0, phi=0))
+
+    def testHkl11nearly0(self):
+        self.places = 3
+        self._check((1, 1, .0001),  # betaout=0
+                    P(mu=0.0029, delta=89.9971, nu=90.0058, eta=90, chi=0,
+                      phi=0))
+
+    def testHkl111(self):
+        self._check((1, 1, 1),  # betaout=30
+                    P(mu=30, delta=54.7356, nu=150, eta=99.7356, chi=0, phi=0))
+
+    def testHklover100(self):
+        self._check((1.1, 0, 0),  # betaout=0
+                    P(mu=0, delta=66.7340, nu=0, eta=33.3670, chi=0, phi=0))
+
+    def testHklunder100(self):
+        self._check((.9, 0, 0),  # betaout=0
+                    P(mu=0, delta=53.4874, nu=0, eta=26.7437, chi=0, phi=0))
+
+    def testHkl788(self):
+        self._check((.7, .8, .8),  # betaout=23.5782
+                    P(mu=23.5782, delta=59.9980, nu=76.7037, eta=84.2591,
+                      chi=0, phi=0))
+
+    def testHkl789(self):
+        self._check((.7, .8, .9),  # betaout=26.7437
+                    P(mu=26.74368, delta=58.6754, nu=86.6919, eta=85.3391,
+                      chi=0, phi=0))
+
+    def testHkl7810(self):
+        self._check((.7, .8, 1),  # betaout=30
+                    P(mu=30, delta=57.0626, nu=96.86590, eta=86.6739, chi=0,
+                      phi=0))
+
+class SkipTestFixedChiPhiPsiModeSurfaceNormalVerticalI16(_TestCubic):
+    # testing with Chris N. for pre christmas 2012 i16 experiment
+
+    def setup_method(self):
+        _TestCubic.setup_method(self)
+        self.mock_hardware.set_lower_limit('nu', 0)
+        self.constraints._constrained = {'chi': 90 * TORAD, 'phi': 0,
+                                         'a_eq_b': None}
+        self.wavelength = 1
+        self.UB = I * 2 * pi
+        self.places = 4
+
+        self.mock_hardware.set_lower_limit('mu', None)
+        self.mock_hardware.set_lower_limit('eta', None)
+        self.mock_hardware.set_lower_limit('chi', None)
+
+    def _configure_ub(self):
+        self.mock_ubcalc.UB = self.UB
+
+    def _check(self, hkl, pos, virtual_expected={}, fails=False):
+#        self._check_angles_to_hkl(
+#            '', 999, 999, hkl, pos, self.wavelength, virtual_expected)
+        if fails:
+            self._check_hkl_to_angles_fails(
+                '', 999, 999, hkl, pos, self.wavelength, virtual_expected)
+        else:
+            self._check_hkl_to_angles(
+                '', 999, 999, hkl, pos, self.wavelength, virtual_expected)
+
+    def testHkl_1_1_0(self):
+        self._check((1, 1, 0.001),  # betaout=0
+                    P(mu=0, delta=60, nu=0, eta=30, chi=0, phi=0))
+        #(-89.9714,  89.9570,  90.0382,  90.0143,  90.0000,  0.0000)
+
+    def testHkl_1_1_05(self):
+        self._check((1, 1, 0.5),  # betaout=0
+                    P(mu=0, delta=60, nu=0, eta=30, chi=0, phi=0))
+
+    def testHkl_1_1_1(self):
+        self._check((1, 1, 1),  # betaout=0
+                    P(mu=0, delta=60, nu=0, eta=30, chi=0, phi=0))
+        #    (-58.6003,  42.7342,  132.9004,  106.3249,  90.0000,  0.0000
+
+    def testHkl_1_1_15(self):
+        self._check((1, 1, 1.5),  # betaout=0
+                    P(mu=0, delta=60, nu=0, eta=30, chi=0, phi=0))
+
+
+class TestConstrain3Sample_ChiPhiEta(_TestCubic):
+
+    def setup_method(self):
+        _TestCubic.setup_method(self)
+        self.mock_hardware.set_lower_limit(NUNAME, 0)
+        self.constraints._constrained = {'chi': 90 * TORAD, 'phi': 0,
+                                         'a_eq_b': None}
+        self.wavelength = 1
+        self.UB = I * 2 * pi
+        self.places = 4
+
+        self.mock_hardware.set_lower_limit('mu', None)
+        self.mock_hardware.set_lower_limit('eta', None)
+        self.mock_hardware.set_lower_limit('chi', None)
+
+    def _configure_ub(self):
+        self.mock_ubcalc.UB = self.UB
+
+    def _check(self, hkl, pos, virtual_expected={}, fails=False):
+        self._check_angles_to_hkl(
+            '', 999, 999, hkl, pos, self.wavelength, virtual_expected)
+        if fails:
+            self._check_hkl_to_angles_fails(
+                '', 999, 999, hkl, pos, self.wavelength, virtual_expected)
+        else:
+            self._check_hkl_to_angles(
+                '', 999, 999, hkl, pos, self.wavelength, virtual_expected)
+
+    def testHkl_all0_001(self):
+        self.constraints._constrained = {'chi': 0, 'phi': 0, 'eta': 0}
+        self._check((0, 0, 1),
+                    P(mu=30, delta=0, nu=60, eta=0, chi=0, phi=0))
+
+    def testHkl_all0_010(self):
+        self.constraints._constrained = {'chi': 0, 'phi': 0, 'eta': 0}
+        self._check((0, 1, 0),
+                    P(mu=120, delta=0, nu=60, eta=0, chi=0, phi=0))
+
+    def testHkl_all0_011(self):
+        self.constraints._constrained = {'chi': 0, 'phi': 0, 'eta': 0}
+        self._check((0, 1, 1),
+                    P(mu=90, delta=0, nu=90, eta=0, chi=0, phi=0))
+        
+    def testHkl_phi30_100(self):
+        self.constraints._constrained = {'chi': 0, 'phi': 30 * TORAD, 'eta': 0}
+        self._check((1, 0, 0),
+                    P(mu=0, delta=60, nu=0, eta=0, chi=0, phi=30))
+        
+    def testHkl_eta30_100(self):
+        self.constraints._constrained = {'chi': 0, 'phi': 0, 'eta': 30 * TORAD}
+        self._check((1, 0, 0),
+                    P(mu=0, delta=60, nu=0, eta=30, chi=0, phi=0))
+        
+    def testHkl_phi90_110(self):
+        self.constraints._constrained = {'chi': 0, 'phi': 90 * TORAD, 'eta': 0}
+        self._check((1, 1, 0),
+                    P(mu=0, delta=90, nu=0, eta=0, chi=0, phi=90))
+        
+    def testHkl_eta90_110(self):
+        self.constraints._constrained = {'chi': 0, 'phi': 0, 'eta': 90 * TORAD}
+        self._check((1, 1, 0),
+                    P(mu=0, delta=90, nu=0, eta=90, chi=0, phi=0))
+
+    def testHkl_all0_1(self):
+        self.mock_hardware.set_upper_limit('delta', 91)
+        self.constraints._constrained = {'chi': 0, 'phi': 0, 'eta': 0 * TORAD}
+        self._check((.01, .01, .1),
+                    P(mu=8.6194, delta=0.5730, nu=5.7607, eta=0, chi=0, phi=0))
+
+    def testHkl_all0_2(self):
+        self.mock_hardware.set_upper_limit('delta', 91)
+        self.constraints._constrained = {'chi': 0, 'phi': 0, 'eta': 0 * TORAD}
+        self._check((0, 0, .1),
+                    P(mu=2.8660, delta=0, nu=5.7320, eta=0, chi=0, phi=0))
+
+    def testHkl_all0_3(self):
+        self.mock_hardware.set_upper_limit('delta', 91)
+        self.constraints._constrained = {'chi': 0, 'phi': 0, 'eta': 0 * TORAD}
+        self._check((.1, 0, .01),
+                    P(mu=30.3314, delta=5.7392, nu= 0.4970, eta=0, chi=0, phi=0))
+
+    def testHkl_show_all_solutionsall0_3(self):
+        self.mock_hardware.set_upper_limit('delta', 91)
+        self.constraints._constrained = {'chi': 0, 'phi': 0, 'eta': 0 * TORAD}
+        self._check((.1, 0, .01),
+                    P(mu=30.3314, delta=5.7392, nu= 0.4970, eta=0, chi=0, phi=0))
+        print self.calc.hkl_to_all_angles(.1, 0, .01, 1)
+
+    def testHkl_all0_010to001(self):
+        self.constraints._constrained = {'chi': 0, 'phi': 0, 'eta': 0}
+        self._check((0, cos(4 * TORAD), sin(4 * TORAD)),
+                    P(mu=120-4, delta=0, nu=60, eta=0, chi=0, phi=0))
+
+    def testHkl_1(self):
+        self.wavelength = .1
+        self.constraints._constrained = {'chi': 0, 'phi': 0 * TORAD, 'eta': 0}
+        self._check((0, 0, 1),
+                    P(mu=2.8660, delta=0, nu=5.7320, eta=0, chi=0, phi=0))
+
+    def testHkl_2(self):
+        self.wavelength = .1
+        self.constraints._constrained = {'chi': 0, 'phi': 0 * TORAD, 'eta': 0}
+        self._check((0, 0, 1),
+                    P(mu=2.8660, delta=0, nu=5.7320, eta=0, chi=0, phi=0))
+
+    def testHkl_3(self):
+        self.mock_hardware.set_upper_limit('delta', 91)
+        self.wavelength = .1
+        self.constraints._constrained = {'chi': 0, 'phi': 0 * TORAD, 'eta': 0}
+        self._check((1, 0, .1),
+                    P(mu= 30.3314, delta=5.7392, nu= 0.4970, eta=0, chi=0, phi=0))
+
+
+
+class TestHorizontalDeltaNadeta0_JiraI16_32_failure(_BaseTest):
+    """
+    The data here is taken from a trial experiment which failed. Diamond's internal Jira: 
+    http://jira.diamond.ac.uk/browse/I16-32"""
+
+    def setup_method(self):
+        _BaseTest.setup_method(self)
+        self.mock_hardware.set_lower_limit(NUNAME, 0)
+        
+        self.wavelength = 12.39842 / 8
+        self.UB = matrix([[ -1.46410390e+00,  -1.07335571e+00,   2.44799214e-03],
+                          [  3.94098508e-01,  -1.07091934e+00,  -6.41132943e-04],
+                          [  7.93297438e-03,   4.01315826e-03,   4.83650166e-01]])
+        self.places = 3
+
+    def _configure_ub(self):
+        self.mock_ubcalc.UB = self.UB
+
+    def _check(self, hkl, pos, virtual_expected={}, fails=False, skip_test_pair_verification=False):
+        if not skip_test_pair_verification:
+            self._check_angles_to_hkl(
+                '', 999, 999, hkl, pos, self.wavelength, virtual_expected)
+        if fails:
+            self._check_hkl_to_angles_fails(
+                '', 999, 999, hkl, pos, self.wavelength, virtual_expected)
+        else:
+            self._check_hkl_to_angles(
+                '', 999, 999, hkl, pos, self.wavelength, virtual_expected)
+
+    def test_hkl_bisecting_works_okay_on_i16(self):
+        self.constraints._constrained = {'delta': 0, 'a_eq_b': None, 'eta': 0}
+        self._check([-1.1812112493619709, -0.71251524866987204, 5.1997083010199221],
+                    P(mu=26, delta=0, nu=52, eta=0, chi=45.2453, phi=186.6933-360), fails=False)
+
+    def test_hkl_psi90_works_okay_on_i16(self):
+        # This is failing here but on the live one. Suggesting some extreme sensitivity?
+        self.constraints._constrained = {'delta': 0, 'psi': 90 * TORAD, 'eta': 0}
+        self._check([-1.1812112493619709, -0.71251524866987204, 5.1997083010199221],
+                    P(mu=26, delta=0, nu=52, eta=0, chi=45.2453, phi=186.6933-360), fails=False)
+        
+    def test_hkl_alpha_17_9776_used_to_fail(self):
+        # This is failing here but on the live one. Suggesting some extreme sensitivity?
+        self.constraints._constrained = {'delta': 0, 'alpha': 17.9776 * TORAD, 'eta': 0}
+        self._check([-1.1812112493619709, -0.71251524866987204, 5.1997083010199221],
+                    P(mu=26, delta=0, nu=52, eta=0, chi=45.2453, phi=186.6933-360), fails=False)
+
+    def test_hkl_alpha_17_9776_failing_after_bigger_small(self):
+        # This is failing here but on the live one. Suggesting some extreme sensitivity?
+        self.constraints._constrained = {'delta': 0, 'alpha': 17.8776 * TORAD, 'eta': 0}
+        self._check([-1.1812112493619709, -0.71251524866987204, 5.1997083010199221],
+                    P(mu=25.85, delta=0, nu=52, eta=0, chi=45.2453, phi=-173.518), fails=False)
+  
+#skip_test_pair_verification
+
+def posFromI16sEuler(phi, chi, eta, mu, delta, gamma):
+    return YouPosition(mu, delta, gamma, eta, chi, phi)
+
+
+class TestAnglesToHkl_I16Examples():
+
+    def __init__(self):
+        self.UB1 = matrix((
+           (0.9996954135095477, -0.01745240643728364, -0.017449748351250637),
+           (0.01744974835125045, 0.9998476951563913, -0.0003045864904520898),
+           (0.017452406437283505, -1.1135499981271473e-16, 0.9998476951563912))
+            ) * (2 * pi)
+        self.WL1 = 1  # Angstrom
+
+    def test_anglesToHkl_mu_0_gam_0(self):
+        pos = posFromI16sEuler(1, 1, 30, 0, 60, 0).inRadians()
+        arrayeq_(youAnglesToHkl(pos, self.WL1, self.UB1), [1, 0, 0])
+
+    def test_anglesToHkl_mu_0_gam_10(self):
+        pos = posFromI16sEuler(1, 1, 30, 0, 60, 10).inRadians()
+        arrayeq_(youAnglesToHkl(pos, self.WL1, self.UB1),
+                 [1.00379806, -0.006578435, 0.08682408])
+
+    def test_anglesToHkl_mu_10_gam_0(self):
+        pos = posFromI16sEuler(1, 1, 30, 10, 60, 0).inRadians()
+        arrayeq_(youAnglesToHkl(pos, self.WL1, self.UB1),
+                 [0.99620193, 0.0065784359, 0.08682408])
+
+    def test_anglesToHkl_arbitrary(self):
+        pos = posFromI16sEuler(1.9, 2.9, 30.9, 0.9, 60.9, 2.9).inRadians()
+        arrayeq_(youAnglesToHkl(pos, self.WL1, self.UB1),
+                 [1.01174189, 0.02368622, 0.06627361])

script/__Lib/diffcalc_old/test/diffcalc/hkl/you/test_calc_methods.py

@@ -0,0 +1,707 @@
+###
+# Copyright 2008-2011 Diamond Light Source Ltd.
+# This file is part of Diffcalc.
+#
+# Diffcalc is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# Diffcalc is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Diffcalc.  If not, see <http://www.gnu.org/licenses/>.
+###
+
+import math
+from math import pi, sin, cos
+from nose.plugins.skip import SkipTest
+from nose.tools import assert_almost_equal, raises, eq_  # @UnresolvedImport
+from mock import Mock
+
+try:
+    from numpy import matrix
+except ImportError:
+    from numjy import matrix
+
+from diffcalc.hkl.you.calc import YouHklCalculator, I, \
+    _calc_angle_between_naz_and_qaz, merge_nearly_equal_pairs
+from test.tools import  assert_matrix_almost_equal, \
+    assert_2darray_almost_equal, aneq_
+from diffcalc.hkl.you.geometry  import YouPosition
+from test.diffcalc.hkl.vlieg.test_calc import \
+    createMockDiffractometerGeometry, createMockHardwareMonitor, \
+    createMockUbcalc
+from test.diffcalc.test_hardware import SimpleHardwareAdapter
+from diffcalc.util import DiffcalcException
+
+from diffcalc.hkl.you.constraints import NUNAME
+
+TORAD = pi / 180
+TODEG = 180 / pi
+
+x = matrix('1; 0; 0')
+y = matrix('0; 1; 0')
+z = matrix('0; 0; 1')
+
+
+def isnan(n):
+    # math.isnan was introduced only in python 2.6 and is not in Jython (2.5.2)
+    try:
+        return math.isnan(n)
+    except AttributeError:
+        return n != n  # for Jython
+
+
+class Test_anglesToVirtualAngles():
+
+    def setup_method(self):
+        constraints = Mock()
+        constraints.is_fully_constrained.return_value = True
+        self.calc = YouHklCalculator(createMockUbcalc(None),
+                                     createMockDiffractometerGeometry(),
+                                     createMockHardwareMonitor(),
+                                     constraints)
+
+    def check_angle(self, name, expected, mu=-99, delta=99, nu=99,
+                     eta=99, chi=99, phi=99):
+        """All in degrees"""
+        pos = YouPosition(mu, delta, nu, eta, chi, phi)
+        pos.changeToRadians()
+        calculated = self.calc._anglesToVirtualAngles(pos, None)[name] * TODEG
+        assert_almost_equal(calculated, expected)
+
+    # theta
+
+    def test_theta0(self):
+        self.check_angle('theta', 0, delta=0, nu=0)
+
+    def test_theta1(self):
+        self.check_angle('theta', 1, delta=2, nu=0)
+
+    def test_theta2(self):
+        self.check_angle('theta', 1, delta=0, nu=2)
+
+    def test_theta3(self):
+        self.check_angle('theta', 1, delta=-2, nu=0)
+
+    def test_theta4(self):
+        self.check_angle('theta', 1, delta=0, nu=-2)
+
+    # qaz
+
+    def test_qaz0_degenerate_case(self):
+        self.check_angle('qaz', 0, delta=0, nu=0)
+
+    def test_qaz1(self):
+        self.check_angle('qaz', 90, delta=2, nu=0)
+
+    def test_qaz2(self):
+        self.check_angle('qaz', 90, delta=90, nu=0)
+
+    def test_qaz3(self):
+        self.check_angle('qaz', 0, delta=0, nu=1,)
+
+    # Can't see one by eye
+    # def test_qaz4(self):
+    #    pos = YouPosition(delta=20*TORAD, nu=20*TORAD)#.inRadians()
+    #    assert_almost_equal(
+    #        self.calc._anglesToVirtualAngles(pos, None)['qaz']*TODEG, 45)
+
+    #alpha
+    def test_defaultReferenceValue(self):
+        # The following tests depemd on this
+        assert_matrix_almost_equal(self.calc._ubcalc.n_phi, matrix([[0], [0], [1]]))
+
+    def test_alpha0(self):
+        self.check_angle('alpha', 0, mu=0, eta=0, chi=0, phi=0)
+
+    def test_alpha1(self):
+        self.check_angle('alpha', 0, mu=0, eta=0, chi=0, phi=10)
+
+    def test_alpha2(self):
+        self.check_angle('alpha', 0, mu=0, eta=0, chi=0, phi=-10)
+
+    def test_alpha3(self):
+        self.check_angle('alpha', 2, mu=2, eta=0, chi=0, phi=0)
+
+    def test_alpha4(self):
+        self.check_angle('alpha', -2, mu=-2, eta=0, chi=0, phi=0)
+
+    def test_alpha5(self):
+        self.check_angle('alpha', 2, mu=0, eta=90, chi=2, phi=0)
+
+    #beta
+
+    def test_beta0(self):
+        self.check_angle('beta', 0, delta=0, nu=0, mu=0, eta=0, chi=0, phi=0)
+
+    def test_beta1(self):
+        self.check_angle('beta', 0, delta=10, nu=0, mu=0, eta=6, chi=0, phi=5)
+
+    def test_beta2(self):
+        self.check_angle('beta', 10, delta=0, nu=10, mu=0, eta=0, chi=0, phi=0)
+
+    def test_beta3(self):
+        self.check_angle('beta', -10, delta=0, nu=-10, mu=0, eta=0, chi=0,
+                         phi=0)
+
+    def test_beta4(self):
+        self.check_angle('beta', 5, delta=0, nu=10, mu=5, eta=0, chi=0, phi=0)
+
+    # azimuth
+    def test_naz0(self):
+        self.check_angle('naz', 0, mu=0, eta=0, chi=0, phi=0)
+
+    def test_naz1(self):
+        self.check_angle('naz', 0, mu=0, eta=0, chi=0, phi=10)
+
+    def test_naz3(self):
+        self.check_angle('naz', 0, mu=10, eta=0, chi=0, phi=10)
+
+    def test_naz4(self):
+        self.check_angle('naz', 2, mu=0, eta=0, chi=2, phi=0)
+
+    def test_naz5(self):
+        self.check_angle('naz', -2, mu=0, eta=0, chi=-2, phi=0)
+
+    #tau
+    def test_tau0(self):
+        self.check_angle('tau', 0, mu=0, delta=0, nu=0, eta=0, chi=0, phi=0)
+        #self.check_angle('tau_from_dot_product', 90, mu=0, delta=0,
+        #nu=0, eta=0, chi=0, phi=0)
+
+    def test_tau1(self):
+        self.check_angle('tau', 90, mu=0, delta=20, nu=0, eta=10, chi=0, phi=0)
+        #self.check_angle('tau_from_dot_product', 90, mu=0, delta=20,
+        #nu=0, eta=10, chi=0, phi=0)
+
+    def test_tau2(self):
+        self.check_angle('tau', 90, mu=0, delta=20, nu=0, eta=10, chi=0, phi=3)
+        #self.check_angle('tau_from_dot_product', 90, mu=0, delta=20,
+        #nu=0, eta=10, chi=0, phi=3)
+
+    def test_tau3(self):
+        self.check_angle('tau', 88, mu=0, delta=20, nu=0, eta=10, chi=2, phi=0)
+        #self.check_angle('tau_from_dot_product', 88, mu=0, delta=20,
+        #nu=0, eta=10, chi=2, phi=0)
+
+    def test_tau4(self):
+        self.check_angle('tau', 92, mu=0, delta=20, nu=0, eta=10, chi=-2,
+                         phi=0)
+        #self.check_angle('tau_from_dot_product', 92, mu=0, delta=20,
+        #nu=0, eta=10, chi=-2, phi=0)
+
+    def test_tau5(self):
+        self.check_angle('tau', 10, mu=0, delta=0, nu=20, eta=0, chi=0, phi=0)
+        #self.check_angle('tau_from_dot_product', 10, mu=0, delta=0,
+        #nu=20, eta=0, chi=0, phi=0)
+
+    #psi
+
+    def test_psi0(self):
+        pos = YouPosition(0, 0, 0, 0, 0, 0)
+        assert isnan(self.calc._anglesToVirtualAngles(pos, None)['psi'])
+
+    def test_psi1(self):
+        self.check_angle('psi', 90, mu=0, delta=11, nu=0, eta=0, chi=0, phi=0)
+
+    def test_psi2(self):
+        self.check_angle(
+            'psi', 100, mu=10, delta=.00000001, nu=0, eta=0, chi=0, phi=0)
+
+    def test_psi3(self):
+        self.check_angle(
+            'psi', 80, mu=-10, delta=.00000001, nu=0, eta=0, chi=0, phi=0)
+
+    def test_psi4(self):
+        self.check_angle(
+            'psi', 90, mu=0, delta=11, nu=0, eta=0, chi=0, phi=12.3)
+
+    def test_psi5(self):
+        #self.check_angle('psi', 0, mu=10, delta=.00000001,
+        #nu=0, eta=0, chi=90, phi=0)
+        pos = YouPosition(0, .00000001, 0, 0, 90, 0)
+        pos.changeToRadians()
+        assert isnan(self.calc._anglesToVirtualAngles(pos, None)['psi'])
+
+    def test_psi6(self):
+        self.check_angle(
+            'psi', 90, mu=0, delta=0.00000001, nu=0, eta=90, chi=0, phi=0)
+
+    def test_psi7(self):
+        self.check_angle(
+            'psi', 92, mu=0, delta=0.00000001, nu=0, eta=90, chi=2, phi=0)
+
+    def test_psi8(self):
+        self.check_angle(
+            'psi', 88, mu=0, delta=0.00000001, nu=0, eta=90, chi=-2, phi=0)
+
+
+class Test_calc_theta():
+
+    def setup_method(self):
+        self.calc = YouHklCalculator(createMockUbcalc(I * 2 * pi),
+                                     createMockDiffractometerGeometry(),
+                                     createMockHardwareMonitor(),
+                                     Mock())
+        self.e = 12.398420  # 1 Angstrom
+
+    def test_100(self):
+        h_phi = matrix([[1], [0], [0]])
+        assert_almost_equal(self.calc._calc_theta(h_phi * 2 * pi, 1) * TODEG,
+                            30)
+
+    @raises(DiffcalcException)
+    def test_too_short(self):
+        h_phi = matrix([[1], [0], [0]])
+        self.calc._calc_theta(h_phi * 0, 1)
+
+    @raises(DiffcalcException)
+    def test_too_long(self):
+        h_phi = matrix([[1], [0], [0]])
+        self.calc._calc_theta(h_phi * 2 * pi, 10)
+
+
+class Test_calc_remaining_reference_angles_given_one():
+
+    # TODO: These are very incomplete due to either totally failing inutuition
+    #       or code!
+    def setup_method(self):
+        self.calc = YouHklCalculator(createMockUbcalc(None),
+                                     createMockDiffractometerGeometry(),
+                                     createMockHardwareMonitor(),
+                                     Mock())
+
+    def check(self, name, value, theta, tau, psi_e, alpha_e, beta_e):
+        # all in deg
+        psi, alpha, beta = self.calc._calc_remaining_reference_angles(
+            name, value * TORAD, theta * TORAD, tau * TORAD)
+        print 'psi', psi * TODEG, ' alpha:', alpha * TODEG,\
+              ' beta:', beta * TODEG
+        if psi_e is not None:
+            assert_almost_equal(psi * TODEG, psi_e)
+        if alpha_e is not None:
+            assert_almost_equal(alpha * TODEG, alpha_e)
+        if beta_e is not None:
+            assert_almost_equal(beta * TODEG, beta_e)
+
+    def test_psi_given0(self):
+        self.check('psi', 90, theta=10, tau=90, psi_e=90,
+                    alpha_e=0, beta_e=0)
+
+    def test_psi_given1(self):
+        self.check('psi', 92, theta=0, tau=90, psi_e=92,
+                    alpha_e=2, beta_e=-2)
+
+    def test_psi_given3(self):
+        self.check('psi', 88, theta=0, tau=90, psi_e=88,
+                    alpha_e=-2, beta_e=2)
+
+    def test_psi_given4(self):
+        self.check('psi', 0, theta=0, tau=90, psi_e=0,
+                    alpha_e=-90, beta_e=90)
+
+    def test_psi_given4a(self):
+        self.check('psi', 180, theta=0, tau=90, psi_e=180,
+                    alpha_e=90, beta_e=-90)
+
+    def test_psi_given5(self):
+        raise SkipTest
+        # TODO: I don't understand why this one passes!
+        self.check('psi', 180, theta=0, tau=80,
+                   psi_e=180, alpha_e=80, beta_e=-80)
+        self.check('psi', 180, theta=0, tau=80,
+                   psi_e=180, alpha_e=90, beta_e=-90)
+
+    def test_a_eq_b0(self):
+        self.check('a_eq_b', 9999, theta=0, tau=90,
+                   psi_e=90, alpha_e=0, beta_e=0)
+
+    def test_alpha_given(self):
+        self.check('alpha', 2, theta=0, tau=90,
+                   psi_e=92, alpha_e=2, beta_e=-2)
+
+    def test_beta_given(self):
+        self.check('beta', 2, theta=0, tau=90,
+                   psi_e=88, alpha_e=-2, beta_e=2)
+#    def test_a_eq_b1(self):
+#        self.check('a_eq_b', 9999, theta=20, tau=90,
+#                   psi_e=90, alpha_e=10, beta_e=10)
+
+#    def test_psi_given0(self):
+#        self.check('psi', 90, theta=10, tau=45, psi_e=90,
+#                    alpha_e=7.0530221302831952, beta_e=7.0530221302831952)
+    
+    def test_merge_nearly_equal_detector_angle_pairs_different(self):
+        pairs = [(1,2), (1,2.1)]
+        assert_2darray_almost_equal(
+            merge_nearly_equal_pairs(pairs), pairs)
+
+    def test_merge_nearly_equal_detector_angle_pairs_1(self):
+        pairs = [(1, 2), (1, 2)]
+        assert_2darray_almost_equal(
+            merge_nearly_equal_pairs(pairs), [(1, 2)])
+
+    def test_merge_nearly_equal_detector_angle_pairs_2(self):
+        pairs = [(1, 2), (1, 2), (1, 2)]
+        assert_2darray_almost_equal(
+            merge_nearly_equal_pairs(pairs), [(1, 2)])
+
+    def test_merge_nearly_equal_detector_angle_pairs_3(self):
+        pairs = [(1, 2.2), (1, 2), (1, 2), (1, 2)]
+        assert_2darray_almost_equal(
+            merge_nearly_equal_pairs(pairs), [(1, 2.2), (1, 2)])
+
+    def test_merge_nearly_equal_detector_angle_pairs_4(self):
+        pairs = [(1, 2.2), (1, 2), (1, 2), (1, 2.2)]
+        assert_2darray_almost_equal(
+            merge_nearly_equal_pairs(pairs), [(1, 2.2), (1, 2)])
+
+class Test_calc_detector_angles_given_one():
+
+    def setup_method(self):
+        self.calc = YouHklCalculator(createMockUbcalc(None),
+                                     createMockDiffractometerGeometry(),
+                                     createMockHardwareMonitor(),
+                                     Mock())
+
+    def check(self, name, value, theta, delta_e, nu_e, qaz_e):
+        # all in deg
+        delta, nu, qaz = self.calc._calc_remaining_detector_angles(
+            name, value * TORAD, theta * TORAD)
+        assert_almost_equal(delta * TODEG, delta_e)
+        assert_almost_equal(nu * TODEG, nu_e)
+        if qaz_e is not None:
+            assert_almost_equal(qaz * TODEG, qaz_e)
+
+    def test_nu_given0(self):
+        self.check(NUNAME, 0, theta=3, delta_e=6, nu_e=0, qaz_e=90)
+
+    def test_nu_given1(self):
+        self.check(NUNAME, 10, theta=7.0530221302831952,
+                   delta_e=10, nu_e=10, qaz_e=None)
+
+    def test_nu_given2(self):
+        self.check(NUNAME, 6, theta=3, delta_e=0, nu_e=6, qaz_e=0)
+
+    def test_delta_given0(self):
+        self.check('delta', 0, theta=3, delta_e=0, nu_e=6, qaz_e=0)
+
+    def test_delta_given1(self):
+        self.check('delta', 10, theta=7.0530221302831952,
+                   delta_e=10, nu_e=10, qaz_e=None)
+
+    def test_delta_given2(self):
+        self.check('delta', 6, theta=3, delta_e=6, nu_e=0, qaz_e=90)
+
+    def test_qaz_given0(self):
+        self.check('qaz', 90, theta=3, delta_e=6, nu_e=0, qaz_e=90)
+
+    def test_qaz_given2(self):
+        self.check('qaz', 0, theta=3, delta_e=0, nu_e=6, qaz_e=0)
+
+
+class Test_calc_angle_between_naz_and_qaz():
+
+    def test1(self):
+        diff = _calc_angle_between_naz_and_qaz(
+            theta=0, alpha=0, tau=90 * TORAD)
+        assert_almost_equal(diff * TODEG, 90)
+
+    def test2(self):
+        diff = _calc_angle_between_naz_and_qaz(
+            theta=0 * TORAD, alpha=0, tau=80 * TORAD)
+        assert_almost_equal(diff * TODEG, 80)
+
+
+class Test_calc_remaining_sample_angles_given_one():
+    #_calc_remaining_detector_angles_given_one
+    def setup_method(self):
+        self.calc = YouHklCalculator(createMockUbcalc(None),
+                                     createMockDiffractometerGeometry(),
+                                     createMockHardwareMonitor(),
+                                     Mock())
+
+    def check(self, name, value, Q_lab, n_lab, Q_phi, n_phi,
+              phi_e, chi_e, eta_e, mu_e):
+        phi, chi, eta, mu = self.calc._calc_remaining_sample_angles(
+                            name, value * TORAD, Q_lab, n_lab, Q_phi, n_phi)
+        print 'phi', phi * TODEG, ' chi:', chi * TODEG, ' eta:', eta * TODEG,\
+              ' mu:', mu * TODEG
+        if phi_e is not None:
+            assert_almost_equal(phi * TODEG, phi_e)
+        if chi_e is not None:
+            assert_almost_equal(chi * TODEG, chi_e)
+        if eta_e is not None:
+            assert_almost_equal(eta * TODEG, eta_e)
+        if mu_e is not None:
+            assert_almost_equal(mu * TODEG, mu_e)
+
+    @raises(ValueError)
+    def test_constrain_xx_degenerate(self):
+        self.check('mu', 0, Q_lab=x, n_lab=x, Q_phi=x, n_phi=x,
+                    phi_e=0, chi_e=0, eta_e=0, mu_e=0)
+
+    def test_constrain_mu_0(self):
+        raise SkipTest()
+        self.check('mu', 0, Q_lab=x, n_lab=z, Q_phi=x, n_phi=z,
+                    phi_e=0, chi_e=0, eta_e=0, mu_e=0)
+
+    def test_constrain_mu_10(self):
+        raise SkipTest()
+        self.check('mu', 10, Q_lab=x, n_lab=z, Q_phi=x, n_phi=z,
+                    phi_e=-90, chi_e=10, eta_e=-90, mu_e=10)
+
+    def test_constrain_mu_n10(self):
+        raise SkipTest()
+        self.check('mu', -10, Q_lab=x, n_lab=z, Q_phi=x, n_phi=z,
+                    phi_e=90, chi_e=10, eta_e=90, mu_e=-10)
+
+    def test_constrain_eta_10_wasfailing(self):
+        # Required the choice of a different equation
+        self.check('eta', 10, Q_lab=x, n_lab=z, Q_phi=x, n_phi=z,
+                    phi_e=-10, chi_e=0, eta_e=10, mu_e=0)
+
+    def test_constrain_eta_n10(self):
+        self.check('eta', -10, Q_lab=x, n_lab=z, Q_phi=x, n_phi=z,
+                    phi_e=10, chi_e=0, eta_e=-10, mu_e=0)
+
+    def test_constrain_eta_20_with_theta_20(self):
+        theta = 20 * TORAD
+        Q_lab = matrix([[cos(theta)], [-sin(theta)], [0]])
+        self.check('eta', 20, Q_lab=Q_lab, n_lab=z, Q_phi=x, n_phi=z,
+                    phi_e=0, chi_e=0, eta_e=20, mu_e=0)
+
+    @raises(ValueError)
+    def test_constrain_chi_0_degenerate(self):
+        self.check('chi', 0, Q_lab=x, n_lab=z, Q_phi=x, n_phi=z,
+                    phi_e=0, chi_e=0, eta_e=0, mu_e=0)
+
+    def test_constrain_chi_10(self):
+        self.check('chi', 10, Q_lab=x, n_lab=z, Q_phi=x, n_phi=z,
+                    phi_e=-90, chi_e=10, eta_e=90, mu_e=-10)
+
+    def test_constrain_chi_90(self):
+        # mu is off by 180, but youcalc tries +-x and 180+-x anyway
+        raise SkipTest()
+        self.check('chi', 90, Q_lab=z * (-1), n_lab=x, Q_phi=x, n_phi=z,
+                    phi_e=0, chi_e=90, eta_e=0, mu_e=0)
+
+    def test_constrain_phi_0(self):
+        self.check('phi', 0, Q_lab=x, n_lab=z, Q_phi=x, n_phi=z,
+                    phi_e=0, chi_e=0, eta_e=0, mu_e=0)
+
+    def test_constrain_phi_10(self):
+        self.check('phi', 10, Q_lab=x, n_lab=z, Q_phi=x, n_phi=z,
+                    phi_e=10, chi_e=0, eta_e=-10, mu_e=0)
+
+    def test_constrain_phi_n10(self):
+        self.check('phi', -10, Q_lab=x, n_lab=z, Q_phi=x, n_phi=z,
+                    phi_e=-10, chi_e=0, eta_e=10, mu_e=0)
+
+    def test_constrain_phi_20_with_theta_20(self):
+        theta = 20 * TORAD
+        Q_lab = matrix([[cos(theta)], [-sin(theta)], [0]])
+        self.check('phi', 20, Q_lab=Q_lab, n_lab=z, Q_phi=x, n_phi=z,
+                    phi_e=20, chi_e=0, eta_e=0, mu_e=0)
+
+
+class TestSolutionGenerator():
+    def setup_method(self):
+
+        names = ['delta', NUNAME, 'mu', 'eta', 'chi', 'phi']
+        self.hardware = SimpleHardwareAdapter(names)
+        self.calc = YouHklCalculator(createMockUbcalc(None),
+                                     createMockDiffractometerGeometry(),
+                                     self.hardware,
+                                     Mock())
+
+    # constraint could have been 'delta', NUNAME, 'qaz' or 'naz'.
+
+    def test_generate_possible_det_soln_no_limits_constrained_qaz_or_naz(self):
+        # we will enfoce the order too, incase this later effects heuristically
+        # made choices
+        expected = (
+                    (.1, .2),
+                    (.1, -.2),
+                    (.1, .2 - pi),
+                    (.1, pi - .2),
+                    (-.1, .2),
+                    (-.1, -.2),
+                    (-.1, .2 - pi),
+                    (-.1, pi - .2),
+                    (.1 - pi, .2),  # pi + x cuts to x-pi
+                    (.1 - pi, -.2),
+                    (.1 - pi, .2 - pi),
+                    (.1 - pi, pi - .2),
+                    (pi - .1, .2),
+                    (pi - .1, -.2),
+                    (pi - .1, .2 - pi),
+                    (pi - .1, pi - .2),
+                   )
+
+        assert_2darray_almost_equal(expected,
+            self.calc._generate_possible_solutions(
+                (.1, .2), ('delta', NUNAME), ('naz',)))
+        assert_2darray_almost_equal(expected,
+            self.calc._generate_possible_solutions(
+                (.1, .2), ('delta', NUNAME), ('qaz',)))
+
+    def test_generate_poss_det_soln_no_lim_cons_qaz_or_naz_delta_and_nu_at_zro(self):  # @IgnorePep8
+        # we will enfoce the order too, incase this later effects hearistically
+        # made choices
+        expected = (
+                    (0., 0,),
+                    (0., pi),
+                    (pi, 0.),
+                    (pi, pi)
+                    )
+
+        assert_2darray_almost_equal(expected,
+            self.calc._generate_possible_solutions(
+                (-2e-9, 2e-9), ('delta', NUNAME), ('naz',)))
+        assert_2darray_almost_equal(expected,
+            self.calc._generate_possible_solutions(
+                (-2e-9, 2e-9), ('delta', NUNAME), ('qaz',)))
+
+    def test_generate_possible_det_solutions_no_limits_constrained_delta(self):
+        expected = (
+                    (.1, .2),
+                    (.1, -.2),
+                    (.1, .2 - pi),
+                    (.1, pi - .2),
+                   )
+
+        assert_2darray_almost_equal(expected,
+                self.calc._generate_possible_solutions(
+                    (.1, .2), ('delta', NUNAME), ('delta',)))
+
+    def test_generate_possible_det_solutions_no_limits_constrained_nu(self):
+        expected = (
+                    (.1, .2),
+                    (-.1, .2),
+                    (.1 - pi, .2),
+                    (pi - .1, .2),
+                   )
+
+        assert_2darray_almost_equal(expected,
+            self.calc._generate_possible_solutions(
+                (.1, .2), ('delta', NUNAME), (NUNAME,)))
+
+    def test_generate_possible_det_soln_with_limits_constrained_delta(self):
+        self.hardware.set_lower_limit(NUNAME, 0)
+        expected = (
+                    (.1, .2),
+                    (.1, pi - .2),
+                   )
+
+        assert_2darray_almost_equal(expected,
+            self.calc._generate_possible_solutions(
+                (.1, .2), ('delta', NUNAME), ('delta',)))
+
+    def test_generate_possible_det_solutions_with_limits_constrained_nu(self):
+        self.hardware.set_upper_limit('delta', 0)
+        expected = (
+                    (-.1, .2),
+                    (.1 - pi, .2),  # cuts to .1-pi
+                   )
+
+        assert_2darray_almost_equal(expected,
+            self.calc._generate_possible_solutions(
+                (.1, .2), ('delta', NUNAME), (NUNAME,)))
+
+    def test_generate_poss_det_soln_with_limits_overly_constrained_nu(self):
+        self.hardware.set_lower_limit('delta', .3)
+        self.hardware.set_upper_limit('delta', .31)
+        eq_(len(self.calc._generate_possible_solutions(
+            (.1, .2), ('delta', NUNAME), (NUNAME,))), 0)
+
+    def test_generate_possible_sample_solutions(self):
+        result = self.calc._generate_possible_solutions(
+            (.1, .2, .3, .4), ('mu', 'eta', 'chi', 'phi'), ('naz',))
+        generated = self._hardcoded_generate_possible_sample_solutions(
+            .1, .2, .3, .4, 'naz')
+        assert_2darray_almost_equal(generated, result)
+        eq_(4 ** 4, len(result))
+
+    def test_generate_possible_sample_solutions_fixed_chi(self):
+        result = self.calc._generate_possible_solutions(
+            (.1, .2, .3, .4), ('mu', 'eta', 'chi', 'phi'), ('chi',))
+        generated = self._hardcoded_generate_possible_sample_solutions(
+            .1, .2, .3, .4, 'chi')
+        assert_2darray_almost_equal(generated, result)
+        eq_(4 ** 3, len(result))
+
+    def test_generate_possible_sample_solutions_fixed_chi_positive_mu(self):
+        self.hardware.set_lower_limit('mu', 0)
+        result = self.calc._generate_possible_solutions(
+            (.1, .2, .3, .4), ('mu', 'eta', 'chi', 'phi'), ('chi',))
+        generated = self._hardcoded_generate_possible_sample_solutions(
+            .1, .2, .3, .4, 'chi')
+        assert_2darray_almost_equal(generated, result)
+        eq_(2 * (4 ** 2), len(result))
+
+    def _hardcoded_generate_possible_sample_solutions(self, mu, eta, chi, phi,
+                                                      sample_constraint_name):
+        possible_solutions = []
+        _identity = lambda x: x
+        _transforms = (_identity,
+                      lambda x: -x,
+                      lambda x: pi + x,
+                      lambda x: pi - x)
+        _transforms_for_zero = (lambda x: 0.,
+                               lambda x: pi,)
+        SMALL = 1e-8
+
+        def cut_at_minus_pi(value):
+            if value < (-pi - SMALL):
+                return value + 2 * pi
+            if value >= pi + SMALL:
+                return value - 2 * pi
+            return value
+
+        def is_small(x):
+            return abs(x) < SMALL
+
+        name = sample_constraint_name
+
+        for transform in ((_identity,) if name == 'mu' else
+                           _transforms if not is_small(mu) else
+                           _transforms_for_zero):
+            transformed_mu = (transform(mu))
+            if not self.hardware.is_axis_value_within_limits('mu',
+                    self.hardware.cut_angle('mu', transformed_mu * TODEG)):
+                continue
+            for transform in ((_identity,) if name == 'eta' else
+                               _transforms if not is_small(eta) else
+                               _transforms_for_zero):
+                transformed_eta = transform(eta)
+                if not self.hardware.is_axis_value_within_limits('eta',
+                    self.hardware.cut_angle('eta', transformed_eta * TODEG)):
+                    continue
+                for transform in ((_identity,) if name == 'chi' else
+                                   _transforms if not is_small(chi) else
+                                   _transforms_for_zero):
+                    transformed_chi = transform(chi)
+                    if not self.hardware.is_axis_value_within_limits('chi',
+                        self.hardware.cut_angle('chi',
+                                               transformed_chi * TODEG)):
+                        continue
+                    for transform in ((_identity,) if name == 'phi' else
+                                       _transforms if not is_small(phi) else
+                                       _transforms_for_zero):
+                        transformed_phi = transform(phi)
+                        if not self.hardware.is_axis_value_within_limits('phi',
+                            self.hardware.cut_angle('phi',
+                                                   transformed_phi * TODEG)):
+                            continue
+                        possible_solutions.append((
+                            cut_at_minus_pi(transformed_mu),
+                            cut_at_minus_pi(transformed_eta),
+                            cut_at_minus_pi(transformed_chi),
+                            cut_at_minus_pi(transformed_phi)))
+        return possible_solutions

script/__Lib/diffcalc_old/test/diffcalc/hkl/you/test_calc_surface.py

@@ -0,0 +1,472 @@
+###
+# Copyright 2008-2011 Diamond Light Source Ltd.
+# This file is part of Diffcalc.
+#
+# Diffcalc is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# Diffcalc is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Diffcalc.  If not, see <http://www.gnu.org/licenses/>.
+###
+
+# TODO: class largely copied from test_calc
+
+from math import pi
+from mock import Mock
+from nose.plugins.skip import SkipTest
+
+try:
+    from numpy import matrix
+except ImportError:
+    from numjy import matrix
+
+from diffcalc.hkl.you.geometry import SixCircle
+from diffcalc.hkl.willmott.calc import \
+    WillmottHorizontalPosition as WillPos
+from diffcalc.hkl.you.geometry import YouPosition as YouPos
+from diffcalc.hkl.you.calc import YouUbCalcStrategy
+from test.tools import matrixeq_
+from diffcalc.ub.calc import UBCalculation
+from diffcalc.ub.crystal import CrystalUnderTest
+from diffcalc.ub.persistence import UbCalculationNonPersister
+from test.diffcalc.hkl.you.test_calc import _BaseTest
+from diffcalc.hkl.you.constraints import NUNAME
+
+TORAD = pi / 180
+TODEG = 180 / pi
+I = matrix('1 0 0; 0 1 0; 0 0 1')
+
+
+class SkipTestSurfaceNormalVerticalCubic(_BaseTest):
+
+    def setup_method(self):
+
+        _BaseTest.setup_method(self)
+        self.constraints._constrained = {'a_eq_b': None, 'mu': -pi / 2,
+                                         'eta': 0}
+        self.wavelength = 1
+        self.UB = I * 2 * pi
+
+    def _configure_ub(self):
+        self.mock_ubcalc.UB = self.UB
+
+    def _check(self, hkl, pos, virtual_expected={}, fails=False):
+        if pos is not None:
+            self._check_angles_to_hkl('', 999, 999, hkl, pos, self.wavelength,
+                                      virtual_expected)
+        if fails:
+            self._check_hkl_to_angles_fails('', 999, 999, hkl, pos,
+                                            self.wavelength, virtual_expected)
+        else:
+            self._check_hkl_to_angles('', 999, 999, hkl, pos, self.wavelength,
+                                      virtual_expected)
+
+    def testHkl001(self):
+        pos = YouPos(mu=-90, delta=60, nu=0, eta=0, chi=90 + 30, phi=-90)
+        self._check((0, 0, 1), pos, {'alpha': 30, 'beta': 30})
+
+    def testHkl011(self):
+        # raise SkipTest()
+        # skipped because we can't calculate values to check against by hand
+        pos = YouPos(mu=-90, delta=90, nu=0, eta=0, chi=90 + 90, phi=-90)
+        self._check((0, 1, 1), pos, {'alpha': 45, 'beta': 45})
+
+    def testHkl010fails(self):
+        self._check((0, 1, 0),
+                    None,
+                    {'alpha': 30, 'beta': 30}, fails=True)
+
+    def testHkl100fails(self):
+        self._check((1, 0, 0),
+                    None,
+                    {'alpha': 30, 'beta': 30}, fails=True)
+
+    def testHkl111(self):
+        raise SkipTest()
+        # skipped because we can't calculate values to check against by hand
+        pos = YouPos(mu=-90, delta=90, nu=0, eta=0, chi=90 + 90, phi=-90)
+        self._check((1, 1, 1), pos, {'alpha': 45, 'beta': 45})
+
+
+# Primary and secondary reflections found with the help of DDIF on Diamond's
+# i07 on Jan 27 2010
+
+
+HKL0 = 2, 19, 32
+REF0 = WillPos(delta=21.975, gamma=4.419, omegah=2, phi=326.2)
+
+HKL1 = 0, 7, 22
+REF1 = WillPos(delta=11.292, gamma=2.844, omegah=2, phi=124.1)
+
+WAVELENGTH = 0.6358
+ENERGY = 12.39842 / WAVELENGTH
+
+
+# This is the version that Diffcalc comes up with ( see following test)
+U_DIFFCALC = matrix([[-0.7178876, 0.6643924, -0.2078944],
+                     [-0.6559596, -0.5455572, 0.5216170],
+                     [0.2331402, 0.5108327, 0.8274634]])
+
+
+#class WillmottHorizontalGeometry(VliegGeometry):
+#
+#    def __init__(self):
+#        VliegGeometry.__init__(self,
+#                    name='willmott_horizontal',
+#                    supported_mode_groups=[],
+#                    fixed_parameters={},
+#                    gamma_location='base'
+#                    )
+#
+#    def physical_angles_to_internal_position(self, physicalAngles):
+#        assert (len(physicalAngles) == 4), "Wrong length of input list"
+#        return WillPos(*physicalAngles)
+#
+#    def internal_position_to_physical_angles(self, internalPosition):
+#        return internalPosition.totuple()
+
+def willmott_to_you_fixed_mu_eta(pos):
+    pos = YouPos(mu=-90,
+                       delta=pos.delta,
+                       nu=pos.gamma,
+                       eta=0,
+                       chi=90 + pos.omegah,
+                       phi=-90 - pos.phi)
+
+    if pos.phi > 180:
+        pos.phi -= 360
+    elif pos.phi < -180:
+        pos.phi += 360
+    return pos
+
+
+class TestUBCalculationWithWillmotStrategy_Si_5_5_12_FixedMuEta():
+
+    def setup_method(self):
+
+        hardware = Mock()
+        hardware.get_axes_names.return_value = ('m', 'd', 'n', 'e', 'c',
+                                                       'p')
+        self.ubcalc = UBCalculation(hardware, SixCircle(),
+                                    UbCalculationNonPersister(),
+                                    YouUbCalcStrategy())
+
+    def testAgainstResultsFromJan_27_2010(self):
+        self.ubcalc.start_new('test')
+        self.ubcalc.set_lattice('Si_5_5_12', 7.68, 53.48, 75.63, 90, 90, 90)
+        self.ubcalc.add_reflection(
+            HKL0[0], HKL0[1], HKL0[2], willmott_to_you_fixed_mu_eta(REF0),
+            ENERGY, 'ref0', None)
+        self.ubcalc.add_reflection(
+            HKL1[0], HKL1[1], HKL1[2], willmott_to_you_fixed_mu_eta(REF1),
+            ENERGY, 'ref1', None)
+        self.ubcalc.calculate_UB()
+        print "U: ", self.ubcalc.U
+        print "UB: ", self.ubcalc.UB
+        matrixeq_(self.ubcalc.U, U_DIFFCALC)
+
+
+class TestFixedMuEta(_BaseTest):
+
+    def setup_method(self):
+        _BaseTest.setup_method(self)
+        self._configure_constraints()
+        self.wavelength = 0.6358
+        B = CrystalUnderTest('xtal', 7.68, 53.48,
+                             75.63, 90, 90, 90).B
+        self.UB = U_DIFFCALC * B
+        self._configure_limits()
+
+    def _configure_constraints(self):
+        self.constraints._constrained = {'alpha': 2 * TORAD, 'mu': -pi / 2,
+                                         'eta': 0}
+
+    def _configure_limits(self):
+        self.mock_hardware.set_lower_limit(NUNAME, None)
+        self.mock_hardware.set_upper_limit('delta', 90)
+        self.mock_hardware.set_lower_limit('mu', None)
+        self.mock_hardware.set_lower_limit('eta', None)
+        self.mock_hardware.set_lower_limit('chi', None)
+
+    def _convert_willmott_pos(self, willmott_pos):
+        return  willmott_to_you_fixed_mu_eta(willmott_pos)
+
+    def _configure_ub(self):
+        self.mock_ubcalc.UB = self.UB
+
+    def _check(self, hkl, pos, virtual_expected={}, fails=False):
+        self._check_angles_to_hkl('', 999, 999, hkl, pos, self.wavelength)
+#                                  virtual_expected)
+        if fails:
+            self._check_hkl_to_angles_fails('', 999, 999, hkl, pos,
+                                            self.wavelength, virtual_expected)
+        else:
+            self._check_hkl_to_angles('', 999, 999, hkl, pos, self.wavelength,
+                                      virtual_expected)
+
+    def testHkl_2_19_32_found_orientation_setting(self):
+        '''Check that the or0 reflection maps back to the assumed hkl'''
+        self.places = 2
+        self._check_angles_to_hkl('', 999, 999, HKL0,
+                        self._convert_willmott_pos(REF0),
+                        self.wavelength, {'alpha': 2})
+
+    def testHkl_0_7_22_found_orientation_setting(self):
+        '''Check that the or1 reflection maps back to the assumed hkl'''
+        self.places = 0
+        self._check_angles_to_hkl('', 999, 999, HKL1,
+                        self._convert_willmott_pos(REF1),
+                        self.wavelength, {'alpha': 2})
+
+    def testHkl_2_19_32_calculated_from_DDIF(self):
+        raise SkipTest()  # diffcalc finds a different soln (with -ve gamma)
+        self.places = 3
+        willpos = WillPos(delta=21.974, gamma=4.419, omegah=2, phi=-33.803)
+        self._check((2, 19, 32),
+                    self._convert_willmott_pos(willpos),
+                    {'alpha': 2})
+
+    def testHkl_0_7_22_calculated_from_DDIF(self):
+        raise SkipTest()  # diffcalc finds a different soln (with -ve gamma)
+        self.places = 3
+        willpos = WillPos(delta=11.241801854649, gamma=-3.038407637123,
+                          omegah=2, phi=-3.436557497330)
+        self._check((0, 7, 22),
+                    self._convert_willmott_pos(willpos),
+                    {'alpha': 2})
+
+    def testHkl_2_m5_12_calculated_from_DDIF(self):
+        raise SkipTest()  # diffcalc finds a different soln (with -ve gamma)
+        self.places = 3
+        willpos = WillPos(delta=5.224, gamma=10.415, omegah=2, phi=-1.972)
+        self._check((2, -5, 12),
+                    self._convert_willmott_pos(willpos),
+                    {'alpha': 2})
+
+    def testHkl_2_19_32_calculated_predicted_with_diffcalc_and_found(self):
+        willpos = WillPos(delta=21.974032376045, gamma=-4.418955754003,
+                          omegah=2, phi=64.027358409574)
+        self._check((2, 19, 32),
+                    self._convert_willmott_pos(willpos),
+                    {'alpha': 2})
+
+    def testHkl_0_7_22_calculated_predicted_with_diffcalc_and_found(self):
+        willpos = WillPos(delta=11.241801854649, gamma=-3.038407637123,
+                          omegah=2, phi=-86.563442502670)
+        self._check((0, 7, 22),
+                    self._convert_willmott_pos(willpos),
+                    {'alpha': 2})
+
+    def testHkl_2_m5_12_calculated_predicted_with_diffcalc_and_found(self):
+        willpos = WillPos(delta=5.223972025344, gamma=-10.415435905622,
+                          omegah=2, phi=-90 - 102.995854571805)
+        self._check((2, -5, 12),
+                    self._convert_willmott_pos(willpos),
+                    {'alpha': 2})
+
+
+###############################################################################
+
+def willmott_to_you_fixed_mu_chi(pos):
+    pos = YouPos(mu=-0,
+                       delta=pos.delta,
+                       nu=pos.gamma,
+                       eta=pos.omegah,
+                       chi=90,
+                       phi=-pos.phi)
+    if pos.phi > 180:
+        pos.phi -= 360
+    elif pos.phi < -180:
+        pos.phi += 360
+    return pos
+
+
+class TestUBCalculationWithWillmotStrategy_Si_5_5_12_FixedMuChi():
+
+    def setup_method(self):
+
+        hardware = Mock()
+        names = 'm', 'd', 'n', 'e', 'c', 'p'
+        hardware.get_axes_names.return_value = names
+        self.ubcalc = UBCalculation(hardware, SixCircle(),
+                                    UbCalculationNonPersister(),
+                                    YouUbCalcStrategy())
+
+    def testAgainstResultsFromJan_27_2010(self):
+        self.ubcalc.start_new('test')
+        self.ubcalc.set_lattice('Si_5_5_12', 7.68, 53.48, 75.63, 90, 90, 90)
+        self.ubcalc.add_reflection(
+            HKL0[0], HKL0[1], HKL0[2], willmott_to_you_fixed_mu_chi(REF0),
+            ENERGY, 'ref0', None)
+        self.ubcalc.add_reflection(
+            HKL1[0], HKL1[1], HKL1[2], willmott_to_you_fixed_mu_chi(REF1),
+            ENERGY, 'ref1', None)
+        self.ubcalc.calculate_UB()
+        print "U: ", self.ubcalc.U
+        print "UB: ", self.ubcalc.UB
+        matrixeq_(self.ubcalc.U, U_DIFFCALC)
+
+
+class Test_Fixed_Mu_Chi(TestFixedMuEta):
+
+    def _configure_constraints(self):
+        self.constraints._constrained = {'alpha': 2 * TORAD, 'mu': 0,
+                                         'chi': pi / 2}
+
+    def _convert_willmott_pos(self, willmott_pos):
+        return  willmott_to_you_fixed_mu_chi(willmott_pos)
+
+
+# Primary and secondary reflections found with the help of DDIF on Diamond's
+# i07 on Jan 28/29 2010
+
+
+Pt531_HKL0 = -1.000, 1.000, 6.0000
+Pt531_REF0 = WillPos(delta=9.3971025, gamma=-16.1812303, omegah=2,
+                                  phi=108.5510712)
+
+Pt531_HKL1 = -2.000, -1.000, 7.0000
+Pt531_REF1 = WillPos(delta=11.0126958, gamma=-11.8636128, omegah=2,
+                                  phi=40.3803393)
+Pt531_HKL2 = 1, 1, 9
+Pt531_REF2 = WillPos(delta=14.1881617, gamma=-7.7585939, omegah=2,
+                                  phi=176.5348540)
+Pt531_WAVELENGTH = 0.6358
+
+# This is U matrix displayed by DDIF
+U_FROM_DDIF = matrix([[-0.00312594, -0.00063417, 0.99999491],
+                      [0.99999229, -0.00237817, 0.00312443],
+                      [0.00237618, 0.99999697, 0.00064159]])
+
+# This is the version that Diffcalc comes up with ( see following test)
+Pt531_U_DIFFCALC = matrix([[-0.0023763, -0.9999970, -0.0006416],
+                           [0.9999923, -0.0023783, 0.0031244],
+                           [-0.0031259, -0.0006342, 0.9999949]])
+
+
+class TestUBCalculationWithYouStrategy_Pt531_FixedMuChi():
+
+    def setup_method(self):
+
+        hardware = Mock()
+        names = 'm', 'd', 'n', 'e', 'c', 'p'
+        hardware.get_axes_names.return_value = names
+        self.ubcalc = UBCalculation(hardware, SixCircle(),
+                                    UbCalculationNonPersister(),
+                                    YouUbCalcStrategy())
+
+    def testAgainstResultsFromJan_28_2010(self):
+        self.ubcalc.start_new('test')
+        self.ubcalc.set_lattice('Pt531', 6.204, 4.806, 23.215, 90, 90, 49.8)
+
+        self.ubcalc.add_reflection(Pt531_HKL0[0], Pt531_HKL0[1], Pt531_HKL0[2],
+                                  willmott_to_you_fixed_mu_chi(Pt531_REF0),
+                                  12.39842 / Pt531_WAVELENGTH,
+                                  'ref0', None)
+        self.ubcalc.add_reflection(Pt531_HKL1[0], Pt531_HKL1[1], Pt531_HKL1[2],
+                                  willmott_to_you_fixed_mu_chi(Pt531_REF1),
+                                  12.39842 / Pt531_WAVELENGTH,
+                                  'ref1', None)
+        self.ubcalc.calculate_UB()
+        print "U: ", self.ubcalc.U
+        print "UB: ", self.ubcalc.UB
+        matrixeq_(self.ubcalc.U, Pt531_U_DIFFCALC)
+
+
+class Test_Pt531_FixedMuChi(_BaseTest):
+
+    def setup_method(self):
+        _BaseTest.setup_method(self)
+        self._configure_constraints()
+        self.wavelength = Pt531_WAVELENGTH
+        CUT = CrystalUnderTest('Pt531', 6.204, 4.806, 23.215, 90, 90, 49.8)
+        B = CUT.B
+        self.UB = Pt531_U_DIFFCALC * B
+        self._configure_limits()
+
+    def _configure_constraints(self):
+        self.constraints._constrained = {'alpha': 2 * TORAD, 'mu': 0,
+                                         'chi': pi / 2}
+
+    def _configure_limits(self):
+        self.mock_hardware.set_lower_limit(NUNAME, None)
+        #self.mock_hardware.set_lower_limit('delta', None)
+        self.mock_hardware.set_upper_limit('delta', 90)
+        self.mock_hardware.set_lower_limit('mu', None)
+        self.mock_hardware.set_lower_limit('eta', None)
+        self.mock_hardware.set_lower_limit('chi', None)
+
+    def _convert_willmott_pos(self, willmott_pos):
+        return  willmott_to_you_fixed_mu_chi(willmott_pos)
+
+    def _configure_ub(self):
+        self.mock_ubcalc.UB = self.UB
+
+    def _check(self, hkl, pos, virtual_expected={}, fails=False):
+#        self._check_angles_to_hkl('', 999, 999, hkl, pos, self.wavelength,
+#                                  virtual_expected)
+        if fails:
+            self._check_hkl_to_angles_fails('', 999, 999, hkl, pos,
+                                            self.wavelength, virtual_expected)
+        else:
+            self._check_hkl_to_angles('', 999, 999, hkl, pos, self.wavelength,
+                                      virtual_expected)
+
+    def testHkl_0_found_orientation_setting(self):
+        '''Check that the or0 reflection maps back to the assumed hkl'''
+        self.places = 1
+        self._check_angles_to_hkl('', 999, 999, Pt531_HKL0,
+                        self._convert_willmott_pos(Pt531_REF0),
+                        self.wavelength, {'alpha': 2})
+
+    def testHkl_1_found_orientation_setting(self):
+        '''Check that the or1 reflection maps back to the assumed hkl'''
+        self.places = 0
+        self._check_angles_to_hkl('', 999, 999, Pt531_HKL1,
+                        self._convert_willmott_pos(Pt531_REF1),
+                        self.wavelength, {'alpha': 2})
+
+    def testHkl_0_calculated_from_DDIF(self):
+        self.places = 7
+        pos_expected = self._convert_willmott_pos(Pt531_REF0)
+        self._check(Pt531_HKL0,
+                    pos_expected,
+                    {'alpha': 2})
+
+    def testHkl_1_calculated_from_DDIF(self):
+        self.places = 7
+        self._check(Pt531_HKL1,
+                    self._convert_willmott_pos(Pt531_REF1),
+                    {'alpha': 2})
+
+    def testHkl_2_calculated_from_DDIF(self):
+        self.places = 7
+        self._check(Pt531_HKL2,
+                    self._convert_willmott_pos(Pt531_REF2),
+                    {'alpha': 2})
+
+    def testHkl_2_m1_0_16(self):
+        self.places = 7
+        pos = WillPos(delta=25.7990976, gamma=-6.2413545, omegah=2,
+                                  phi=47.4624380)
+#        pos.phi -= 360
+        self._check((-1, 0, 16),
+                    self._convert_willmott_pos(pos),
+                    {'alpha': 2})
+
+
+class Test_Pt531_Fixed_Mu_eta_(Test_Pt531_FixedMuChi):
+
+    def _configure_constraints(self):
+        self.constraints._constrained = {'alpha': 2 * TORAD, 'mu': -pi / 2,
+                                         'eta': 0}
+
+    def _convert_willmott_pos(self, willmott_pos):
+        return  willmott_to_you_fixed_mu_eta(willmott_pos)

script/__Lib/diffcalc_old/test/diffcalc/hkl/you/test_constraints.py

@@ -0,0 +1,575 @@
+###
+# Copyright 2008-2011 Diamond Light Source Ltd.
+# This file is part of Diffcalc.
+#
+# Diffcalc is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# Diffcalc is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Diffcalc.  If not, see <http://www.gnu.org/licenses/>.
+###
+
+
+from nose.tools import eq_  # @UnresolvedImport
+from mock import Mock
+
+from diffcalc.hkl.you.constraints import YouConstraintManager
+from diffcalc.util import DiffcalcException
+from nose.tools import raises
+from nose.tools import assert_raises  # @UnresolvedImport
+
+from diffcalc.hkl.you.constraints import NUNAME
+import diffcalc.util
+
+def joined(d1, d2):
+    d1.update(d2)
+    return d1
+
+
+class TestConstraintManager:
+
+    def setup_method(self):
+        diffcalc.util.COLOURISE_TERMINAL_OUTPUT = False
+        self.hardware_monitor = Mock()
+        self.hardware_monitor.get_position.return_value = (1.,) * 6
+        self.hardware_monitor.get_axes_names.return_value = [
+                                      'mu', 'delta', NUNAME, 'eta', 'chi', 'phi']
+        self.cm = YouConstraintManager(self.hardware_monitor)
+
+    def test_init(self):
+        eq_(self.cm.all, {})
+        eq_(self.cm.detector, {})
+        eq_(self.cm.reference, {})
+        eq_(self.cm.sample, {})
+        eq_(self.cm.naz, {})
+
+    def test_build_display_table(self):
+        self.cm.constrain('qaz')
+        self.cm.constrain('alpha')
+        self.cm.constrain('eta')
+        self.cm.set_constraint('qaz', 1.234)
+        self.cm.set_constraint('eta', 99.)
+        print '\n'.join(self.cm.build_display_table_lines())
+        eq_(self.cm.build_display_table_lines(),
+            ['    DET        REF        SAMP',
+             '    ------     ------     ------',
+             '    delta      a_eq_b     mu',
+             '    %s o-> alpha  --> eta' % NUNAME.ljust(6),
+             '--> qaz        beta       chi',
+             '    naz        psi        phi',
+             '                          mu_is_%s' % NUNAME])
+
+
+#"""
+#    DET        REF        SAMP                  Available:
+#    ======     ======     ======
+#    delta      a_eq_b     mu                    3x samp:         80 of 80
+#    nu     o-> alpha  --> eta                   2x samp and ref: chi & phi
+#--> qaz        beta       chi                                    mu & eta
+#    naz        psi        phi                                    chi=90 & mu=0
+#                          mu_is_nu              2x samp and det: 0 of 6
+#                                                3x samp:         0 of 4
+#"""[1:-1]
+
+    def test_unconstrain_okay(self):
+        eq_(self.cm.all, {})
+        self.cm.constrain('delta')
+        self.cm.constrain('mu')
+        eq_(self.cm.all, {'delta': None, 'mu': None})
+        eq_(self.cm.unconstrain('delta'), None)
+        eq_(self.cm.all, {'mu': None})
+        
+    def test_clear_constraints(self):
+        self.cm.constrain('delta')
+        self.cm.constrain('mu')
+        self.cm.clear_constraints()
+        eq_(self.cm.all, {})
+
+    def test_unconstrain_bad(self):
+        eq_(self.cm.all, {})
+        eq_(self.cm.unconstrain('delta'), "Delta was not already constrained.")
+
+    def test_constrain_det(self, pre={}):
+        eq_(self.cm.all, pre)
+        eq_(self.cm.constrain('delta'), None)
+        eq_(self.cm.all, joined({'delta': None}, pre))
+        eq_(self.cm.constrain('delta'), 'Delta is already constrained.')
+        eq_(self.cm.all, joined({'delta': None}, pre))
+        eq_(self.cm.constrain('naz'), 'Delta constraint replaced.')
+        eq_(self.cm.all, joined({'naz': None}, pre))
+        eq_(self.cm.constrain('delta'), 'Naz constraint replaced.')
+        eq_(self.cm.all, joined({'delta': None}, pre))
+
+    def test_constrain_det_one_preexisting_ref(self):
+        self.cm.constrain('alpha')
+        self.test_constrain_det({'alpha': None})
+
+    def test_constrain_det_one_preexisting_samp(self):
+        self.cm.constrain('phi')
+        self.test_constrain_det({'phi': None})
+
+    def test_constrain_det_one_preexisting_samp_and_ref(self):
+        self.cm.constrain('alpha')
+        self.cm.constrain('phi')
+        self.test_constrain_det({'alpha': None, 'phi': None})
+
+    def test_constrain_det_two_preexisting_samp(self):
+        self.cm.constrain('chi')
+        self.cm.constrain('phi')
+        self.test_constrain_det({'chi': None, 'phi': None})
+
+    def test_constrain_det_three_preexisting_other(self):
+        self.cm.constrain('alpha')
+        self.cm.constrain('phi')
+        self.cm.constrain('chi')
+        try:
+            self.cm.constrain('delta')
+            assert False
+        except DiffcalcException, e:
+            eq_(e.args[0], (
+                "Delta could not be constrained. First un-constrain one of the"
+                "\nangles alpha, chi or phi (with 'uncon')"))
+
+    def test_constrain_det_three_preexisting_samp(self):
+        self.cm.constrain('phi')
+        self.cm.constrain('chi')
+        self.cm.constrain('eta')
+        try:
+            self.cm.constrain('delta')
+            assert False
+        except DiffcalcException, e:
+            eq_(e.args[0],
+                "Delta could not be constrained. First un-constrain one of the"
+                "\nangles eta, chi or phi (with 'uncon')")
+
+    def test_constrain_ref(self, pre={}):
+        eq_(self.cm.all, pre)
+        eq_(self.cm.constrain('alpha'), None)
+        eq_(self.cm.all, joined({'alpha': None}, pre))
+        eq_(self.cm.constrain('alpha'), 'Alpha is already constrained.')
+        eq_(self.cm.all, joined({'alpha': None}, pre))
+        eq_(self.cm.constrain('beta'), 'Alpha constraint replaced.')
+        eq_(self.cm.all, joined({'beta': None}, pre))
+
+    def test_constrain_ref_one_preexisting_det(self):
+        self.cm.constrain('delta')
+        self.test_constrain_ref({'delta': None})
+
+    def test_constrain_ref_one_preexisting_samp(self):
+        self.cm.constrain('phi')
+        self.test_constrain_ref({'phi': None})
+
+    def test_constrain_ref_one_preexisting_samp_and_det(self):
+        self.cm.constrain('delta')
+        self.cm.constrain('phi')
+        self.test_constrain_ref({'delta': None, 'phi': None})
+
+    def test_constrain_ref_two_preexisting_samp(self):
+        self.cm.constrain('chi')
+        self.cm.constrain('phi')
+        self.test_constrain_ref({'chi': None, 'phi': None})
+
+    def test_constrain_ref_three_preexisting_other(self):
+        self.cm.constrain('delta')
+        self.cm.constrain('phi')
+        self.cm.constrain('chi')
+        try:
+            self.cm.constrain('alpha'),
+            assert False
+        except DiffcalcException, e:
+            eq_(e.args[0],
+                "Alpha could not be constrained. First un-constrain one of the"
+                "\nangles delta, chi or phi (with 'uncon')")
+
+    def test_constrain_ref_three_preexisting_samp(self):
+        self.cm.constrain('phi')
+        self.cm.constrain('chi')
+        self.cm.constrain('eta')
+        try:
+            self.cm.constrain('delta')
+            assert False
+        except DiffcalcException, e:
+            eq_(e.args[0],
+                "Delta could not be constrained. First un-constrain one of the"
+                "\nangles eta, chi or phi (with 'uncon')")
+
+    def test_constrain_samp_when_one_free(self, pre={}):
+        eq_(self.cm.all, pre)
+        eq_(self.cm.constrain('phi'), None)
+        eq_(self.cm.all, joined({'phi': None}, pre))
+        eq_(self.cm.constrain('phi'), 'Phi is already constrained.')
+        eq_(self.cm.all, joined({'phi': None}, pre))
+
+    def test_constrain_samp_one_preexisting_samp(self):
+        self.cm.constrain('chi')
+        self.test_constrain_samp_when_one_free({'chi': None})
+
+    def test_constrain_samp_two_preexisting_samp(self):
+        self.cm.constrain('chi')
+        self.cm.constrain('eta')
+        self.test_constrain_samp_when_one_free({'chi': None, 'eta': None})
+
+    def test_constrain_samp_two_preexisting_other(self):
+        self.cm.constrain('delta')
+        self.cm.constrain('alpha')
+        self.test_constrain_samp_when_one_free({'delta': None, 'alpha': None})
+
+    def test_constrain_samp_two_preexisting_one_det(self):
+        self.cm.constrain('delta')
+        self.cm.constrain('eta')
+        self.test_constrain_samp_when_one_free({'delta': None, 'eta': None})
+
+    def test_constrain_samp_two_preexisting_one_ref(self):
+        self.cm.constrain('alpha')
+        self.cm.constrain('eta')
+        self.test_constrain_samp_when_one_free({'alpha': None, 'eta': None})
+
+    def test_constrain_samp_three_preexisting_only_one_samp(self):
+        self.cm.constrain('delta')
+        self.cm.constrain('alpha')
+        self.cm.constrain('eta')
+        eq_(self.cm.constrain('phi'), 'Eta constraint replaced.')
+        eq_(self.cm.all, {'delta': None, 'alpha': None, 'phi': None})
+        eq_(self.cm.constrain('phi'), 'Phi is already constrained.')
+        eq_(self.cm.all, {'delta': None, 'alpha': None, 'phi': None})
+
+    def test_constrain_samp_three_preexisting_two_samp_one_det(self):
+        self.cm.constrain('delta')
+        self.cm.constrain('eta')
+        self.cm.constrain('chi')
+        try:
+            self.cm.constrain('phi')
+            assert False
+        except DiffcalcException, e:
+            eq_(e.args[0],
+                "Phi could not be constrained. First un-constrain one of the"
+                "\nangles delta, eta or chi (with 'uncon')")
+
+    def test_constrain_samp_three_preexisting_two_samp_one_ref(self):
+        self.cm.constrain('alpha')
+        self.cm.constrain('eta')
+        self.cm.constrain('chi')
+        try:
+            self.cm.constrain('phi')
+            assert False
+        except DiffcalcException, e:
+            eq_(e.args[0],
+                "Phi could not be constrained. First un-constrain one of the"
+                "\nangles alpha, eta or chi (with 'uncon')")
+
+    def test_constrain_samp_three_preexisting_samp(self):
+        self.cm.constrain('mu')
+        self.cm.constrain('eta')
+        self.cm.constrain('chi')
+        try:
+            self.cm.constrain('phi')
+            assert False
+        except DiffcalcException, e:
+            eq_(e.args[0],
+                "Phi could not be constrained. First un-constrain one of the"
+                "\nangles mu, eta or chi (with 'uncon')")
+
+    def test_report_constraints_none(self):
+        eq_(self.cm.report_constraints_lines(),
+            ['!   3 more constraints required'])
+
+    def test_report_constraints_one_with_value(self):
+        self.cm.constrain(NUNAME)
+        self.cm.set_constraint(NUNAME, 9.12343)
+        eq_(self.cm.report_constraints_lines(),
+            ['!   2 more constraints required',
+             '    %s  : 9.1234' % NUNAME])
+
+    def test_report_constraints_one_with_novalue(self):
+        self.cm.constrain(NUNAME)
+        print '!   2 more constraints required\n!   %s: ---' % NUNAME
+        eq_(self.cm.report_constraints_lines(),
+            ['!   2 more constraints required',
+             '!   %s  : ---' % NUNAME])
+
+    def test_report_constraints_one_with_valueless(self):
+        self.cm.constrain('a_eq_b')
+        eq_(self.cm.report_constraints_lines(),
+            ['!   2 more constraints required',
+             '    a_eq_b'])
+
+    def test_report_constraints_one_with_two(self):
+        self.cm.constrain('naz')
+        self.cm.set_constraint('naz', 9.12343)
+        self.cm.constrain('a_eq_b')
+        eq_(self.cm.report_constraints_lines(),
+            ['!   1 more constraint required',
+             '    naz  : 9.1234',
+             '    a_eq_b'])
+
+    def test_report_constraints_one_with_three(self):
+        self.cm.constrain('naz')
+        self.cm.set_constraint('naz', 9.12343)
+        self.cm.constrain('a_eq_b')
+        self.cm.constrain('mu')
+        self.cm.set_constraint('mu', 9.12343)
+
+        eq_(self.cm.report_constraints_lines(),
+            ['    naz  : 9.1234',
+             '    a_eq_b',
+             '    mu   : 9.1234'])
+
+    def _constrain(self, *args):
+        for con in args:
+            self.cm.constrain(con)
+
+    @raises(ValueError)
+    def test_is_implemented_invalid(self):
+        self._constrain('naz')
+        self.cm.is_current_mode_implemented()
+
+    # 1 samp
+
+    def test_is_implemented_1_samp_naz(self):
+        self._constrain('naz', 'alpha', 'mu')
+        eq_(self.cm.is_current_mode_implemented(), True)
+
+    def test_is_implemented_1_samp_det(self):
+        self._constrain('qaz', 'alpha', 'mu')
+        eq_(self.cm.is_current_mode_implemented(), True)
+
+    # 2 samp + ref
+
+    def test_is_implemented_2_samp_ref_mu_chi(self):
+        self._constrain('beta', 'mu', 'chi')
+        eq_(self.cm.is_current_mode_implemented(), False)
+
+    def test_is_implemented_2_samp_ref_mu90_chi0(self):
+        self._constrain('beta', 'mu', 'chi')
+        self.cm.set_constraint('mu', 0)
+        self.cm.set_constraint('chi', 90)
+        eq_(self.cm.is_current_mode_implemented(), True)
+
+    def test_is_implemented_2_samp_ref_mu_eta(self):
+        self._constrain('beta', 'mu', 'eta')
+        eq_(self.cm.is_current_mode_implemented(), True)
+
+    def test_is_implemented_2_samp_ref_mu_phi(self):
+        self._constrain('beta', 'mu', 'phi')
+        eq_(self.cm.is_current_mode_implemented(), False)
+
+    def test_is_implemented_2_samp_ref_eta_chi(self):
+        self._constrain('beta', 'eta', 'chi')
+        eq_(self.cm.is_current_mode_implemented(), False)
+
+    def test_is_implemented_2_samp_ref_eta_phi(self):
+        self._constrain('beta', 'eta', 'phi')
+        eq_(self.cm.is_current_mode_implemented(), False)
+
+    def test_is_implemented_2_samp_ref_chi_phi(self):
+        self._constrain('beta', 'chi', 'phi')
+        eq_(self.cm.is_current_mode_implemented(), True)
+
+    # 2 samp + det
+
+    def test_is_implemented_2_samp_det_mu_chi(self):
+        self._constrain('qaz', 'mu', 'chi')
+        eq_(self.cm.is_current_mode_implemented(), False)
+
+    def test_is_implemented_2_samp_det_mu_eta(self):
+        self._constrain('qaz', 'mu', 'eta')
+        eq_(self.cm.is_current_mode_implemented(), False)
+
+    def test_is_implemented_2_samp_det_mu_phi(self):
+        self._constrain('qaz', 'mu', 'phi')
+        eq_(self.cm.is_current_mode_implemented(), False)
+
+    def test_is_implemented_2_samp_det_eta_chi(self):
+        self._constrain('qaz', 'eta', 'chi')
+        eq_(self.cm.is_current_mode_implemented(), False)
+
+    def test_is_implemented_2_samp_det_eta_phi(self):
+        self._constrain('qaz', 'eta', 'phi')
+        eq_(self.cm.is_current_mode_implemented(), False)
+
+    def test_is_implemented_2_samp_det_chi_phi(self):
+        self._constrain('qaz', 'chi', 'phi')
+        eq_(self.cm.is_current_mode_implemented(), False)
+
+    # 3 samp
+
+    def test_is_implemented_3_samp_no_mu(self):
+        self._constrain('eta', 'chi', 'phi')
+        eq_(self.cm.is_current_mode_implemented(), True)
+
+    def test_is_implemented_3_samp_no_eta(self):
+        self._constrain('mu', 'chi', 'phi')
+        eq_(self.cm.is_current_mode_implemented(), False)
+
+    def test_is_implemented_3_samp_no_chi(self):
+        self._constrain('mu', 'eta', 'phi')
+        eq_(self.cm.is_current_mode_implemented(), False)
+
+    def test_is_implemented_3_samp_no_phi(self):
+        self._constrain('mu', 'eta', 'chi')
+        eq_(self.cm.is_current_mode_implemented(), False)
+
+    def test_set_fails(self):
+        try:
+            self.cm.set_constraint('not_a_constraint', object())
+            assert False
+        except DiffcalcException, e:
+            eq_(e.args[0], "Could not set not_a_constraint. This is not an "
+                "available constraint.")
+
+        try:
+            self.cm.set_constraint('delta', object())
+            assert False
+        except DiffcalcException, e:
+            eq_(e.args[0],
+                "Could not set delta. This is not currently constrained.")
+
+        self.cm.constrain('a_eq_b')
+        try:
+            self.cm.set_constraint('a_eq_b', object())
+            assert False
+        except DiffcalcException, e:
+            eq_(e.args[0],
+                "Could not set a_eq_b. This constraint takes no value.")
+
+#        self.cm.constrain('delta')
+#        self.cm.track('delta')
+#        try:
+#            self.cm.set('delta', object())
+#            assert False
+#        except DiffcalcException, e:
+#            eq_(e.args[0], ("Could not set delta as this constraint is "
+#                            "configured to track its associated\n"
+#                            "physical angle. First remove this tracking "
+#                            "(use 'untrack delta')."))
+
+    def test_set(self):
+        #"%s: %s --> %f %s"
+        self.cm.constrain('alpha')
+        eq_(self.cm.set_constraint('alpha', 1.), 'alpha : --- --> 1.0')
+        eq_(self.cm.set_constraint('alpha', 2.), 'alpha : 1.0 --> 2.0')
+
+
+
+#    def test_track_fails(self):
+#        try:
+#            self.cm.track('not_a_constraint')
+#            assert False
+#        except DiffcalcException, e:
+#            eq_(e.args[0], "Could not track not_a_constraint as this is not "
+#                "an available constraint.")
+#
+#        try:
+#            self.cm.track('delta')
+#            assert False
+#        except DiffcalcException, e:
+#            eq_(e.args[0],
+#                "Could not track delta as this is not currently constrained.")
+#
+#        self.cm.constrain('a_eq_b')
+#        try:
+#            self.cm.track('a_eq_b')
+#            assert False
+#        except DiffcalcException, e:
+#            eq_(e.args[0],
+#                "Could not track a_eq_b as this constraint takes no value.")
+#
+#        self.cm.constrain('alpha')
+#        try:
+#            self.cm.track('alpha')
+#            assert False
+#        except DiffcalcException, e:
+#            eq_(e.args[0], ("Could not configure alpha to track as this "
+#                            "constraint is not associated with a\n"
+#                            "physical angle."))
+#
+#    def test_track(self):
+#        #"%s: %s --> %f %s"
+#        self.cm.constrain('delta')
+#        eq_(self.cm.track('delta'), 'delta : --- ~~> 1.0 (tracking)')
+#        eq_(self.cm.track('delta'), 'Delta was already configured to track.')
+#        self.cm.untrack('delta')
+#        self.cm.set_constraint('delta', 2.)
+#        eq_(self.cm.track('delta'), 'delta : 2.0 ~~> 1.0 (tracking)')
+
+class TestConstraintManagerWithFourCircles:
+
+    def setup_method(self):
+        self.cm = YouConstraintManager(None, {NUNAME: 0, 'mu': 0})    
+
+    def test_init(self):
+        eq_(self.cm.all, {NUNAME: 0, 'mu': 0})
+        eq_(self.cm.detector, {NUNAME: 0})
+        eq_(self.cm.reference, {})
+        eq_(self.cm.sample, {'mu': 0})
+        eq_(self.cm.naz, {})
+
+    def test_build_initial_display_table_with_fixed_detector(self):
+        self.cm = YouConstraintManager(None, {NUNAME: 0})
+        print self.cm.build_display_table_lines()
+        eq_(self.cm.build_display_table_lines(),
+            ['    REF        SAMP',
+             '    ------     ------',
+             '    a_eq_b     mu',
+             '    alpha      eta',
+             '    beta       chi',
+             '    psi        phi'])
+        
+    def test_build_initial_display_table_with_fixed_sample(self):
+        self.cm = YouConstraintManager(None, {'mu': 0})
+        print self.cm.build_display_table_lines()
+        eq_(self.cm.build_display_table_lines(),
+            ['    DET        REF        SAMP',
+             '    ------     ------     ------',
+             '    delta      a_eq_b     eta',
+             '    %s     alpha      chi' % NUNAME.ljust(6),
+             '    qaz        beta       phi',
+             '    naz        psi'])
+        
+    def test_build_initial_display_table_for_four_circle(self):
+        self.cm = YouConstraintManager(None, {'mu': 0, NUNAME: 0})
+        print self.cm.build_display_table_lines()
+        eq_(self.cm.build_display_table_lines(),
+            ['    REF        SAMP',
+             '    ------     ------',
+             '    a_eq_b     eta',
+             '    alpha      chi',
+             '    beta       phi',
+             '    psi'])
+        
+    def test_constrain_fixed_detector_angle(self):
+        assert_raises(DiffcalcException, self.cm.constrain, 'delta')
+        assert_raises(DiffcalcException, self.cm.constrain, NUNAME)
+        assert_raises(DiffcalcException, self.cm.constrain, 'naz')
+        assert_raises(DiffcalcException, self.cm.constrain, 'qaz')
+
+    def test_unconstrain_fixed_detector_angle(self):
+        assert_raises(DiffcalcException, self.cm.unconstrain, 'delta')
+        assert_raises(DiffcalcException, self.cm.unconstrain, NUNAME)
+        assert_raises(DiffcalcException, self.cm.unconstrain, 'naz')
+        assert_raises(DiffcalcException, self.cm.unconstrain, 'qaz')
+        
+    def test_set_constrain_fixed_detector_angle(self):
+        assert_raises(DiffcalcException, self.cm.set_constraint, 'delta', 0)
+        assert_raises(DiffcalcException, self.cm.set_constraint, NUNAME, 0)
+        assert_raises(DiffcalcException, self.cm.set_constraint, 'naz', 0)
+        assert_raises(DiffcalcException, self.cm.set_constraint, 'qaz', 0)
+    
+    @raises(DiffcalcException)
+    def test_constrain_fixed_sample_angle(self):
+        self.cm.constrain('mu')
+
+    @raises(DiffcalcException)
+    def test_unconstrain_fixed_sample_angle(self):
+        self.cm.unconstrain('mu')
+
+    @raises(DiffcalcException)
+    def test_set_constrain_fixed_sample_angle(self):
+        self.cm.set_constraint('mu', 0)

script/__Lib/diffcalc_old/test/diffcalc/hkl/you/test_hkl.py

@@ -0,0 +1,95 @@
+###
+# Copyright 2008-2011 Diamond Light Source Ltd.
+# This file is part of Diffcalc.
+#
+# Diffcalc is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# Diffcalc is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Diffcalc.  If not, see <http://www.gnu.org/licenses/>.
+###
+
+
+from mock import Mock, call
+from diffcalc import settings
+
+import diffcalc
+diffcalc.util.DEBUG = True
+
+
+hkl = None
+def setup_module():
+    global hkl
+    settings.hardware=Mock()
+    settings.geometry=Mock()
+    settings.angles_to_hkl_function=Mock()
+    settings.ubcalc_strategy=Mock()
+    settings.geometry.fixed_constraints = {}
+    
+    from diffcalc.hkl.you import hkl
+    reload(hkl)
+    
+    hkl.hklcalc = Mock()
+    hkl.hklcalc.constraints.report_constraints_lines.return_value = ['report1', 'report2']
+
+
+def test_con_with_1_constraint():
+    hkl.con('cona')
+    hkl.hklcalc.constraints.constrain.assert_called_with('cona')
+
+def test_con_with_1_constraint_with_value():
+    hkl.con('cona', 123)
+    hkl.hklcalc.constraints.constrain.assert_called_with('cona')
+    hkl.hklcalc.constraints.set_constraint.assert_called_with('cona', 123)
+
+def test_con_with_3_constraints():
+    hkl.con('cona', 'conb', 'conc')
+    hkl.hklcalc.constraints.clear_constraints.assert_called()
+    calls = [call('cona'), call('conb'), call('conc')]
+    hkl.hklcalc.constraints.constrain.assert_has_calls(calls)
+
+def test_con_with_3_constraints_first_val():
+    hkl.con('cona', 1, 'conb', 'conc')
+    hkl.hklcalc.constraints.clear_constraints.assert_called()
+    calls = [call('cona'), call('conb'), call('conc')]
+    hkl.hklcalc.constraints.constrain.assert_has_calls(calls)
+    hkl.hklcalc.constraints.set_constraint.assert_called_with('cona', 1)
+
+def test_con_with_3_constraints_second_val():
+    hkl.con('cona', 'conb', 2, 'conc')
+    hkl.hklcalc.constraints.clear_constraints.assert_called()
+    calls = [call('cona'), call('conb'), call('conc')]
+    hkl.hklcalc.constraints.constrain.assert_has_calls(calls)
+    hkl.hklcalc.constraints.set_constraint.assert_called_with('conb', 2)
+    
+def test_con_with_3_constraints_third_val():
+    hkl.con('cona', 'conb', 'conc', 3)
+    hkl.hklcalc.constraints.clear_constraints.assert_called()
+    calls = [call('cona'), call('conb'), call('conc')]
+    hkl.hklcalc.constraints.constrain.assert_has_calls(calls)
+    hkl.hklcalc.constraints.set_constraint.assert_called_with('conc', 3)
+    
+def test_con_with_3_constraints_all_vals():
+    hkl.con('cona', 1, 'conb', 2, 'conc', 3)
+    hkl.hklcalc.constraints.clear_constraints.assert_called()
+    calls = [call('cona'), call('conb'), call('conc')]
+    hkl.hklcalc.constraints.constrain.assert_has_calls(calls)
+    calls = [call('cona', 1), call('conb', 2), call('conc', 3)]
+    hkl.hklcalc.constraints.set_constraint.assert_has_calls(calls)
+    
+def test_con_messages_and_help_visually():
+    hkl.con()
+    print "**"
+    print hkl.con.__doc__
+    
+def test_con_message_display_whenn_selecting_an_unimplmented_mode():
+    hkl.hklcalc.constraints.is_fully_constrained.return_value = True
+    hkl.hklcalc.constraints.is_current_mode_implemented.return_value = False
+    hkl.con('phi', 'chi', 'eta')