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slsDetectorPackage/python/tests/test_det_api.py
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maliakal_d 5ec5d46c48
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Dev/ctb separate dac and power (#1420)
* not allowing power names for dac names to prevent duplicate names

* wip

* v_abcd commands should be removed to prevent unintentional usage and throw with a suggestion command for dac and power

* binary in

* dacs with power dac names should work and do not take in dac units to avoid ambiguity, test with 0 value for power dacs should fail, to do: implement power commands

* wip: power in client, tests, and fixed server interfaces and ctb implementation, not tested

* wip. client and xilinx todo

* wip: ctb power works, tests left

* fixed some tests

* added vchip check

* python cmds still left. wip

* fixed xilinx. python left

* wip

* wip. xilinx

* fixed powerchip for ctb

* power all returns all

* configtransceiver is removed

* wip python

* wip

* wip

* wip

* wip

* wip

* wip

* wip xilinx

* wip

* wip

* wip

* pybindings

* fix getdacindex and getdacname for normal detectors to throw if random index that doesnt fit to the detector

* wip

* fixed tests

* fixes for python api

* wip

* python: moved powerlist to Ctb

* fixed tests to work for powelist in Ctb

* moved signallist, adclist, slowadc, slowadclist to Ctb

* throw approperiate error when no modules added for powers

* added dac test

* fix dac default names and test for dacs

* ctb dacs, yet to do othe rdacs

* dacs should work now even in tests

* run all tests

* DetectorPowers->NamedPowers in ctb

* comments

* removed unnecessary test code

* removed hard coded dac names in python NamedDacs and NamedPowers

* minor

* minor

* fixed error messages

* changed power to  be able to set DAC directly, using enable and disable methods with enabled to get
2026-04-15 10:33:01 +02:00

718 lines
24 KiB
Python

import pytest, sys, traceback
from pathlib import Path
current_dir = Path(__file__).resolve().parents[2]
scripts_dir = current_dir / "tests" / "scripts"
sys.path.append(str(scripts_dir))
print(sys.path)
from utils_for_test import (
Log,
LogLevel,
)
from slsdet import Detector
@pytest.mark.detectorintegration
def test_define_reg(session_simulator, request):
""" Test setting define_reg for ctb and xilinx_ctb."""
det_type, num_interfaces, num_mods, d = session_simulator
assert d is not None
from slsdet import RegisterAddress
if det_type in ['ctb', 'xilinx_ctb']:
prev_reg_defs = d.getRegisterDefinitions()
prev_bit_defs = d.getBitDefinitions()
d.clearRegisterDefinitions()
d.clearBitDefinitions()
addr1 = RegisterAddress(0x201)
addr2 = RegisterAddress(0x202)
d.define_reg(name="test_reg", addr=RegisterAddress(0x200)) # valid
d.define_reg(name="test_reg", addr=addr1) # takes a register address
d.define_reg(name="test_reg2", addr=0x202) # takes an int
# not using keyword arguments
with pytest.raises(TypeError) as exc_info:
d.define_reg("randomreg", 0x203)
# invalid value type
with pytest.raises(Exception) as exc_info:
d.define_reg(name="test_reg3", addr='0x203')
assert "addr must int or RegisterAddress" in str(exc_info.value)
# defining with duplicate value
with pytest.raises(Exception) as exc_info:
d.define_reg(name="test_reg3", addr=addr1)
assert "Value already assigned" in str(exc_info.value)
assert(d.getRegisterAddress("test_reg") == addr1)
assert(d.getRegisterName(addr1) == "test_reg")
# accessing non existent reg name
with pytest.raises(Exception) as exc_info:
d.reg['random_reg']
assert "No entry found for key" in str(exc_info.value)
# get non existing reg address
with pytest.raises(Exception) as exc_info:
d.getRegisterName(RegisterAddress(0x300))
assert "No entry found for value" in str(exc_info.value)
d.clearRegisterDefinitions()
d.setRegisterDefinitions(prev_reg_defs)
d.setBitDefinitions(prev_bit_defs)
else:
with pytest.raises(Exception) as exc_info:
d.define_reg(name="test_reg", addr=0x201)
assert "Register Definitions only for CTB" in str(exc_info.value)
Log(LogLevel.INFOGREEN, f"{request.node.name} passed")
@pytest.mark.detectorintegration
def test_define_bit(session_simulator, request):
""" Test setting define_bit for ctb and xilinx_ctb."""
det_type, num_interfaces, num_mods, d = session_simulator
assert d is not None
from slsdet import RegisterAddress, BitAddress
if det_type in ['ctb', 'xilinx_ctb']:
prev_reg_defs = d.getRegisterDefinitions()
prev_bit_defs = d.getBitDefinitions()
d.clearRegisterDefinitions()
d.clearBitDefinitions()
addr1 = RegisterAddress(0x201)
addr2 = RegisterAddress(0x202)
d.define_reg(name="test_reg1", addr=addr1)
d.define_reg(name="test_reg2", addr=addr2)
# not using keyword arguments
with pytest.raises(TypeError) as exc_info:
d.define_bit("randombit", 0x203, 1)
# invalid value type (bit=string)
with pytest.raises(ValueError) as exc_info:
d.define_bit(name="test_bit1", addr='test_reg1', bit_position='1')
# invalid bit_position
with pytest.raises(Exception) as exc_info:
d.define_bit(name="test_bit1", addr='test_reg1', bit_position=32)
assert "Bit position must be between 0 and 31" in str(exc_info.value)
# defining with random reg value
with pytest.raises(Exception) as exc_info:
d.define_bit(name='test_bit1', addr='random_reg', bit_position=1)
assert "No entry found for key" in str(exc_info.value)
bit1 = BitAddress(addr1, 2)
bit2 = BitAddress(addr1, 4)
bit3 = BitAddress(addr2, 3)
# defining bit address with bit_position as well
with pytest.raises(ValueError) as exc_info:
d.define_bit(name='test_bit1', addr=bit1, bit_position=1)
assert "bit_position must be None" in str(exc_info.value)
d.define_bit(name="test_bit1", addr='test_reg2', bit_position=1)
d.define_bit(name="test_bit1", addr='test_reg1', bit_position=1) # modify reg
d.define_bit(name='test_bit1', addr=bit1) # modify pos
d.define_bit(name="test_bit2", addr=0x201, bit_position=4) # int addr
d.define_bit(name="test_bit3", addr=addr2, bit_position=3) # RegisterAddress addr
assert(d.getBitAddress('test_bit1') == bit1)
assert(d.getBitAddress('test_bit2') == bit2)
assert(d.getBitAddress('test_bit3') == bit3)
assert(d.getBitAddress('test_bit1').address() == addr1)
assert(d.getBitAddress('test_bit1').bitPosition() == 2)
assert(d.getBitAddress('test_bit2') == BitAddress(addr1, 4))
assert(d.getBitName(bit1) == 'test_bit1')
assert(d.getBitName(bit2) == 'test_bit2')
assert(d.getBitName(bit3) == 'test_bit3')
assert(d.getBitName(BitAddress(addr2,3)) == 'test_bit3')
# bit doesnt exist for that reg
with pytest.raises(Exception) as exc_info:
d.getBitName(BitAddress(addr1, 5))
assert "No entry found for value" in str(exc_info.value)
# addr doesnt exist for that reg
with pytest.raises(Exception) as exc_info:
d.getBitName(BitAddress(RegisterAddress(0x300), 5))
assert "No entry found for value" in str(exc_info.value)
d.clearRegisterDefinitions()
d.clearBitDefinitions()
d.setRegisterDefinitions(prev_reg_defs)
d.setBitDefinitions(prev_bit_defs)
else:
with pytest.raises(Exception) as exc_info:
d.define_bit(name="test_bit", addr=0x300, bit_position=1)
assert "Bit Definitions only for CTB" in str(exc_info.value)
Log(LogLevel.INFOGREEN, f"{request.node.name} passed")
@pytest.mark.detectorintegration
def test_using_defined_reg_and_bit(session_simulator, request):
""" Test using defined reg and bit define_bit for ctb and xilinx_ctb."""
det_type, num_interfaces, num_mods, d = session_simulator
assert d is not None
from slsdet import RegisterAddress, BitAddress, RegisterValue
if det_type in ['ctb', 'xilinx_ctb']:
prev_reg_defs = d.getRegisterDefinitions()
prev_bit_defs = d.getBitDefinitions()
d.clearRegisterDefinitions()
d.clearBitDefinitions()
addr1 = RegisterAddress(0x201)
addr2 = RegisterAddress(0x202)
d.setRegisterDefinition('test_reg1', addr1)
d.setRegisterDefinition('test_reg2', addr2)
bit1 = BitAddress(addr1, 2)
bit2 = BitAddress(addr1, 4)
bit3 = BitAddress(addr2, 3)
d.setBitDefinition('test_bit1', bit1)
d.setBitDefinition('test_bit2', bit2)
d.setBitDefinition('test_bit3', bit3)
prev_val_addr1 = d.reg[addr1]
prev_val_addr2 = d.reg[addr2]
# reg name doesnt exist
with pytest.raises(Exception) as exc_info:
d.reg['random_reg']
assert "No entry found for key" in str(exc_info.value)
with pytest.raises(Exception) as exc_info:
d.setBit('random_reg')
assert "No entry found for key" in str(exc_info.value)
with pytest.raises(Exception) as exc_info:
d.clearBit('random_reg')
assert "No entry found for key" in str(exc_info.value)
with pytest.raises(Exception) as exc_info:
d.getBit('random_reg')
assert "No entry found for key" in str(exc_info.value)
# bit name doesnt exist
with pytest.raises(Exception) as exc_info:
d.setBit('test_bit1', bit_position=5)
assert "bit_position must be None" in str(exc_info.value)
with pytest.raises(Exception) as exc_info:
d.clearBit('test_bit1', bit_position=5)
assert "bit_position must be None" in str(exc_info.value)
with pytest.raises(Exception) as exc_info:
d.getBit('test_bit1', bit_position=5)
assert "bit_position must be None" in str(exc_info.value)
d.reg['test_reg1'] = RegisterValue(0x0)
assert(d.reg['test_reg1'].value() == 0x0)
d.reg['test_reg1'] = RegisterValue(0x10)
assert(d.reg['test_reg1'].value() == 0x10)
d.setBit('test_bit1')
assert(d.reg['test_reg1'].value() == 0x14) # 0x10 | (1 << 2)
d.clearBit('test_bit1')
assert(d.reg['test_reg1'].value() == 0x10)
assert(d.getBit('test_bit1') == 0)
# restore previous values
d.reg[addr1] = prev_val_addr1
d.reg[addr2] = prev_val_addr2
d.clearRegisterDefinitions()
d.clearBitDefinitions()
d.setRegisterDefinitions(prev_reg_defs)
d.setBitDefinitions(prev_bit_defs)
else:
with pytest.raises(Exception) as exc_info:
d.define_bit(name="test_bit", addr=0x300, bit_position=1)
assert "Bit Definitions only for CTB" in str(exc_info.value)
Log(LogLevel.INFOGREEN, f"{request.node.name} passed")
@pytest.mark.detectorintegration
def test_definelist_reg(session_simulator, request):
""" Test using definelist_reg for ctb and xilinx_ctb."""
det_type, num_interfaces, num_mods, d = session_simulator
assert d is not None
from slsdet import RegisterAddress, BitAddress, RegisterValue
if det_type in ['ctb', 'xilinx_ctb']:
prev_reg_defs = d.getRegisterDefinitions()
prev_bit_defs = d.getBitDefinitions()
d.clearRegisterDefinitions()
d.clearBitDefinitions()
addr1 = RegisterAddress(0x201)
addr2 = RegisterAddress(0x202)
bit1 = BitAddress(addr1, 2)
bit2 = BitAddress(addr1, 4)
bit3 = BitAddress(addr2, 3)
d.setRegisterDefinitions({
'test_reg1': RegisterAddress(0x201),
'test_reg2': RegisterAddress(0x202)
})
res = d.getRegisterDefinitions()
assert(res['test_reg1'] == addr1)
assert(res['test_reg2'] == addr2)
assert(len(res) == 2)
d.clearRegisterDefinitions()
d.clearBitDefinitions()
d.setRegisterDefinitions(prev_reg_defs)
d.setBitDefinitions(prev_bit_defs)
else:
with pytest.raises(Exception) as exc_info:
d.define_bit(name="test_bit", addr=0x300, bit_position=1)
assert "Bit Definitions only for CTB" in str(exc_info.value)
Log(LogLevel.INFOGREEN, f"{request.node.name} passed")
@pytest.mark.detectorintegration
def test_definelist_bit(session_simulator, request):
""" Test using definelist_bit for ctb and xilinx_ctb."""
det_type, num_interfaces, num_mods, d = session_simulator
assert d is not None
from slsdet import RegisterAddress, BitAddress, RegisterValue
if det_type in ['ctb', 'xilinx_ctb']:
prev_reg_defs = d.getRegisterDefinitions()
prev_bit_defs = d.getBitDefinitions()
d.clearRegisterDefinitions()
d.clearBitDefinitions()
addr1 = RegisterAddress(0x201)
addr2 = RegisterAddress(0x202)
bit1 = BitAddress(addr1, 2)
bit2 = BitAddress(addr1, 4)
bit3 = BitAddress(addr2, 3)
d.setRegisterDefinitions({
'test_reg1': RegisterAddress(0x201),
'test_reg2': RegisterAddress(0x202)
})
d.setBitDefinitions({
'test_bit1': BitAddress(addr1, 2),
'test_bit2': BitAddress(addr1, 4),
'test_bit3': BitAddress(addr2, 3)
})
res = d.getBitDefinitions()
assert(len(res) == 3)
assert(res['test_bit1'] == bit1)
assert(res['test_bit2'] == bit2)
assert(res['test_bit3'] == bit3)
assert(res['test_bit2'].address() == addr1)
assert(res['test_bit2'].bitPosition() == 4)
d.clearRegisterDefinitions()
d.clearBitDefinitions()
d.setRegisterDefinitions(prev_reg_defs)
d.setBitDefinitions(prev_bit_defs)
else:
with pytest.raises(Exception) as exc_info:
d.define_bit(name="test_bit", addr=0x300, bit_position=1)
assert "Bit Definitions only for CTB" in str(exc_info.value)
Log(LogLevel.INFOGREEN, f"{request.node.name} passed")
@pytest.mark.detectorintegration
def test_parameters_file(session_simulator, request):
""" Test using test_parameters_file."""
det_type, num_interfaces, num_mods, d = session_simulator
assert d is not None
with open("/tmp/params.det", "w") as f:
f.write("frames 2\n")
f.write("fwrite 1\n")
# this should not throw
d.parameters = "/tmp/params.det"
assert d.frames == 2
assert d.fwrite == 1
Log(LogLevel.INFOGREEN, f"✅ Test passed. Command: parameters")
@pytest.mark.detectorintegration
def test_include_file(session_simulator, request):
""" Test using test_include_file."""
det_type, num_interfaces, num_mods, d = session_simulator
assert d is not None
with open("/tmp/params.det", "w") as f:
f.write("frames 3\n")
f.write("fwrite 0\n")
# this should not throw
d.include = "/tmp/params.det"
assert d.frames == 3
assert d.fwrite == 0
Log(LogLevel.INFOGREEN, f"✅ Test passed. Command: include")
@pytest.mark.detectorintegration
def test_patternstart(session_simulator, request):
""" Test using patternstart for ctb, xilinx_ctb and mythen3."""
det_type, num_interfaces, num_mods, d = session_simulator
assert d is not None
if det_type in ['ctb', 'xilinx_ctb', 'mythen3']:
d.patternstart()
else:
with pytest.raises(Exception) as exc_info:
d.patternstart()
assert "not implemented" in str(exc_info.value)
Log(LogLevel.INFOGREEN, f"{request.node.name} passed")
@pytest.mark.detectorintegration
def test_v_limit(session_simulator, request):
"""Test v_limit."""
det_type, num_interfaces, num_mods, d = session_simulator
assert d is not None
if det_type in ['ctb', 'xilinx_ctb']:
# save previous value
prev_val = d.getVoltageLimit()
from slsdet import dacIndex, powerIndex
prev_dac_val = d.getDAC(dacIndex.DAC_0, False)
prev_power_dac_val = d.getPowerDAC(powerIndex.V_POWER_A)
with pytest.raises(Exception):
d.v_limit = (1200, 'mV') #mV unit not supported, should be 'no unit'
with pytest.raises(Exception):
d.v_limit = -100 # previously worked but not allowing now
# setting dac and power dac with no vlimit should work
d.v_limit = 0
assert d.v_limit == 0
d.setDAC(dacIndex.DAC_0, 1200, True, [0])
d.setPowerDAC(powerIndex.V_POWER_A, 1200)
# setting vlimit should throw setting values above vlimit
d.v_limit = 1500
assert d.v_limit == 1500
with pytest.raises(Exception):
d.setDAC(dacIndex.DAC_0, 1501, True, [0])
with pytest.raises(Exception):
d.setPowerDAC(powerIndex.V_POWER_A, 1501)
# setting dac and power dac below vlimit should still work
d.setDAC(dacIndex.DAC_0, 1210, True, [0])
d.setPowerDAC(powerIndex.V_POWER_A, 1210)
# restore previous value
d.setVoltageLimit(prev_val)
d.setPowerDAC(powerIndex.V_POWER_A, prev_power_dac_val)
for i in range(len(d)):
d.setDAC(dacIndex.DAC_0, prev_dac_val[i], False, [i])
else:
with pytest.raises(Exception) as exc_info:
d.v_limit
assert "not implemented" in str(exc_info.value)
Log(LogLevel.INFOGREEN, f"{request.node.name} passed")
@pytest.mark.detectorintegration
def test_v_abcd(session_simulator, request):
"""Test v_a, v_b, v_c, v_d, v_io are deprecated comands."""
det_type, num_interfaces, num_mods, d = session_simulator
assert d is not None
with pytest.raises(Exception):
d.v_a
with pytest.raises(Exception):
d.v_b
with pytest.raises(Exception):
d.v_c
with pytest.raises(Exception):
d.v_d
with pytest.raises(Exception):
d.v_io
Log(LogLevel.INFOGREEN, f"{request.node.name} passed")
@pytest.mark.detectorintegration
def test_powers(session_simulator, request):
"""Test powers and powerlist."""
det_type, num_interfaces, num_mods, d = session_simulator
assert d is not None
from slsdet import Ctb
c = Ctb()
if det_type in ['ctb', 'xilinx_ctb']:
c.powerlist
# save previous value
from slsdet import powerIndex
prev_val_dac = {power: c.getPowerDAC(power) for power in c.getPowerList()}
prev_val = {power: c.isPowerEnabled(power) for power in c.getPowerList()}
# invalid
invalid_assignments = [
(c.powers, "random", True), # set random power
(c.powers, "random", True), # set random attribute of power
(c.powers.VA, "dac", "1200"),
(c.powers.VA, "enabled", "True"),
(c.powers, "VA", "-100"),
(c.powers, "VA", "-1"),
(c.powers, "VA", "4096")
]
for obj, attr, value in invalid_assignments:
with pytest.raises(Exception):
setattr(obj, attr, value)
# vchip power can only be accessed via pybindings because it cannot be enabled/disabled
with pytest.raises(Exception):
c.powers.VCHIP
# valid
c.powers
c.powers.VA = 1200
assert c.powers.VA == 1200
assert c.powers.VA.dac == 1200
c.powers.VA.enable()
assert c.powers.VA.enabled == True
c.setPowerEnabled([powerIndex.V_POWER_B, powerIndex.V_POWER_C], True)
assert c.powers.VB.enabled == True
assert c.powers.VC.enabled == True
c.powers.VA = 1500
assert c.powers.VA == 1500
assert c.powers.VA.dac == 1500
# change power name and test same value
temp = c.powers.VB
c.powerlist = ["VA", "m_VB", "VC", "VD", "VIO"]
assert c.powers.m_VB.enabled == True
assert c.powers.m_VB == temp
# restore previous value
for power in c.getPowerList():
c.setPowerDAC(power, prev_val_dac[power])
c.setPowerEnabled([power], prev_val[power])
else:
with pytest.raises(Exception) as exc_info:
c.powerlist
assert "only for CTB" in str(exc_info.value)
Log(LogLevel.INFOGREEN, f"{request.node.name} passed")
@pytest.mark.detectorintegration
def test_adclist(session_simulator, request):
"""Test ADC list."""
det_type, num_interfaces, num_mods, d = session_simulator
assert d is not None
from slsdet import Ctb
c = Ctb()
if det_type in ['ctb', 'xilinx_ctb']:
c.adclist
c.adclist = ["1", "2", "3", "test", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15", "16", "17", "18", "19", "20", "21", "22", "23", "24", "25", "26", "27", "28", "29", "30", "31", "32"]
c.adclist
else:
with pytest.raises(Exception) as exc_info:
c.adclist
assert "only for CTB" in str(exc_info.value)
Log(LogLevel.INFOGREEN, f"{request.node.name} passed")
@pytest.mark.detectorintegration
def test_signallist(session_simulator, request):
"""Test signal list."""
det_type, num_interfaces, num_mods, d = session_simulator
assert d is not None
from slsdet import Ctb
c = Ctb()
if det_type in ['ctb', 'xilinx_ctb']:
c.signallist
c.signallist = ["1", "2", "3", "test", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15", "16", "17", "18", "19", "20", "21", "22", "23", "24", "25", "26", "27", "28", "29", "30", "31", "32", "33", "34", "35", "36", "37", "38", "39", "40", "41", "42", "43", "44", "45", "46", "47", "48", "49", "50", "51", "52", "53", "54", "55", "56", "57", "58", "59", "60", "61", "62", "63", "64"]
c.signallist
else:
with pytest.raises(Exception) as exc_info:
c.signallist
assert "only for CTB" in str(exc_info.value)
Log(LogLevel.INFOGREEN, f"{request.node.name} passed")
@pytest.mark.detectorintegration
def test_slowadc(session_simulator, request):
"""Test slow ADC and slow adc list."""
det_type, num_interfaces, num_mods, d = session_simulator
assert d is not None
from slsdet import Ctb
c = Ctb()
if det_type in ['ctb', 'xilinx_ctb']:
c.slowadc
c.slowadc.SLOWADC5
c.slowadclist = ["1", "2", "3", "test", "5", "6", "7", "8"]
c.slowadc.test
else:
with pytest.raises(Exception) as exc_info:
c.signallist
assert "only for CTB" in str(exc_info.value)
Log(LogLevel.INFOGREEN, f"{request.node.name} passed")
@pytest.mark.detectorintegration
def test_dac(session_simulator, request):
"""Test dac."""
det_type, num_interfaces, num_mods, d = session_simulator
assert d is not None
from slsdet import dacIndex
if det_type in ['ctb', 'xilinx_ctb']:
from slsdet import Ctb
c = Ctb()
# valid
c.daclist
c.dacvalues
# save previous value
prev_val = {dac: c.getDAC(dac, False) for dac in c.getDacList()}
prev_dac_list = c.daclist
# invalid
invalid_assignments = [
(c.dacs, "vb_comp", "1200"), # set random dac
(c.dacs, "DAC18", "1200"), # set dac 18
(c.dacs, "DAC0", "-1"),
(c.dacs, "DAC0", "4096")
]
for obj, attr, value in invalid_assignments:
with pytest.raises(Exception):
setattr(obj, attr, value)
# valid
c.dacs.DAC0 = 1200
assert c.getDAC(dacIndex.DAC_0, False)[0] == 1200
c.dacs.DAC0 = 0
assert c.dacs.DAC0[0] == 0
# restore previous value
for dac in c.getDacList():
c.setDAC(dac, prev_val[dac][0], False)
c.daclist = prev_dac_list
else:
with pytest.raises(Exception):
d.dacs.DAC0
# valid
d.daclist
d.dacvalues
# remember first dac name and index to test later
dacname = d.daclist[0]
assert dacname
dacIndex = d.getDacList()[0]
# save previous value
prev_val = d.getDAC(dacIndex, False)
if det_type == 'eiger':
from slsdet import Eiger
c = Eiger()
elif det_type == 'jungfrau':
from slsdet import Jungfrau
c = Jungfrau()
elif det_type == 'gotthard2':
from slsdet import Gotthard2
c = Gotthard2()
elif det_type == 'mythen3':
from slsdet import Mythen3
c = Mythen3()
elif det_type == 'moench':
from slsdet import Moench
c = Moench()
else:
raise RuntimeError("Unknown detector type to test dac: " + det_type)
# invalid checks
invalid_assignments = [
(c.dacs, "random", "1200"), # set random dac
(c.dacs, "DAC0", "1200"), # set random dac
(c.dacs, dacname, "-1"),
(c.dacs, dacname, "4096")
]
for obj, attr, value in invalid_assignments:
with pytest.raises(Exception):
setattr(obj, attr, value)
# valid, have to use setattr because c is different for each detector
# and we cannot hardcode the dac name
setattr(c.dacs, dacname, 1200)
assert c.getDAC(dacIndex, False)[0] == 1200
setattr(c.dacs, dacname, 0)
assert getattr(c.dacs, dacname)[0] == 0
# restore previous value
for i in range(len(d)):
d.setDAC(dacIndex, prev_val[i], False, [i])
Log(LogLevel.INFOGREEN, f"{request.node.name} passed")