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bec_widgets/tests/unit_tests/test_crosshair.py

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Python

# pylint: disable = no-name-in-module,missing-class-docstring, missing-module-docstring
import numpy as np
import pytest
from qtpy.QtCore import QPointF
from bec_widgets.widgets.image.image_widget import BECImageWidget
from bec_widgets.widgets.waveform.waveform_widget import BECWaveformWidget
from .client_mocks import mocked_client
# pylint: disable = redefined-outer-name
@pytest.fixture
def plot_widget_with_crosshair(qtbot, mocked_client):
widget = BECWaveformWidget(client=mocked_client())
widget.plot(x=[1, 2, 3], y=[4, 5, 6])
widget.waveform.hook_crosshair()
qtbot.addWidget(widget)
qtbot.waitExposed(widget)
yield widget.waveform.crosshair, widget.waveform.plot_item
@pytest.fixture
def image_widget_with_crosshair(qtbot, mocked_client):
widget = BECImageWidget(client=mocked_client())
widget._image.add_custom_image(name="test", data=np.random.random((100, 200)))
widget._image.hook_crosshair()
qtbot.addWidget(widget)
qtbot.waitExposed(widget)
yield widget._image.crosshair, widget._image.plot_item
def test_mouse_moved_lines(plot_widget_with_crosshair):
crosshair, plot_item = plot_widget_with_crosshair
# Connect the signals to slots that will store the emitted values
emitted_values_1D = []
crosshair.coordinatesChanged1D.connect(emitted_values_1D.append)
# Simulate a mouse moved event at a specific position
pos_in_view = QPointF(2, 5)
pos_in_scene = plot_item.vb.mapViewToScene(pos_in_view)
event_mock = [pos_in_scene]
# Call the mouse_moved method
crosshair.mouse_moved(event_mock)
# Assert the expected behavior
assert np.isclose(crosshair.v_line.pos().x(), 2)
assert np.isclose(crosshair.h_line.pos().y(), 5)
def test_mouse_moved_signals(plot_widget_with_crosshair):
crosshair, plot_item = plot_widget_with_crosshair
# Create a slot that will store the emitted values as tuples
emitted_values_1D = []
def slot(coordinates):
emitted_values_1D.append(coordinates)
# Connect the signal to the custom slot
crosshair.coordinatesChanged1D.connect(slot)
# Simulate a mouse moved event at a specific position
pos_in_view = QPointF(2, 5)
pos_in_scene = plot_item.vb.mapViewToScene(pos_in_view)
event_mock = [pos_in_scene]
# Call the mouse_moved method
crosshair.mouse_moved(event_mock)
# Assert the expected behavior
assert emitted_values_1D == [("Curve 1", 2, 5)]
def test_mouse_moved_signals_outside(plot_widget_with_crosshair):
crosshair, plot_item = plot_widget_with_crosshair
# Create a slot that will store the emitted values as tuples
emitted_values_1D = []
def slot(x, y_values):
emitted_values_1D.append((x, y_values))
# Connect the signal to the custom slot
crosshair.coordinatesChanged1D.connect(slot)
# Simulate a mouse moved event at a specific position
pos_in_view = QPointF(22, 55)
pos_in_scene = plot_item.vb.mapViewToScene(pos_in_view)
event_mock = [pos_in_scene]
# Call the mouse_moved method
crosshair.mouse_moved(event_mock)
# Assert the expected behavior
assert emitted_values_1D == []
def test_mouse_moved_signals_2D(image_widget_with_crosshair):
crosshair, plot_item = image_widget_with_crosshair
# Create a slot that will store the emitted values as tuples
emitted_values_2D = []
def slot(coordinates):
emitted_values_2D.append(coordinates)
# Connect the signal to the custom slot
crosshair.coordinatesChanged2D.connect(slot)
# Simulate a mouse moved event at a specific position
pos_in_view = QPointF(22.0, 55.0)
pos_in_scene = plot_item.vb.mapViewToScene(pos_in_view)
event_mock = [pos_in_scene]
# Call the mouse_moved method
crosshair.mouse_moved(event_mock)
# Assert the expected behavior
assert emitted_values_2D == [("test", 22.0, 55.0)]
def test_mouse_moved_signals_2D_outside(image_widget_with_crosshair):
crosshair, plot_item = image_widget_with_crosshair
# Create a slot that will store the emitted values as tuples
emitted_values_2D = []
def slot(x, y):
emitted_values_2D.append((x, y))
# Connect the signal to the custom slot
crosshair.coordinatesChanged2D.connect(slot)
# Simulate a mouse moved event at a specific position
pos_in_view = QPointF(220.0, 555.0)
pos_in_scene = plot_item.vb.mapViewToScene(pos_in_view)
event_mock = [pos_in_scene]
# Call the mouse_moved method
crosshair.mouse_moved(event_mock)
# Assert the expected behavior
assert emitted_values_2D == []