145 lines
4.5 KiB
Python
145 lines
4.5 KiB
Python
import pyqtgraph as pg
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app = pg.mkQApp()
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def test_AxisItem_stopAxisAtTick(monkeypatch):
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def test_bottom(p, axisSpec, tickSpecs, textSpecs):
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assert view.mapToView(axisSpec[1]).x() == 0.25
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assert view.mapToView(axisSpec[2]).x() == 0.75
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def test_left(p, axisSpec, tickSpecs, textSpecs):
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assert view.mapToView(axisSpec[1]).y() == 0.875
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assert view.mapToView(axisSpec[2]).y() == 0.125
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plot = pg.PlotWidget()
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view = plot.plotItem.getViewBox()
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bottom = plot.getAxis("bottom")
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bottom.setRange(0, 1)
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bticks = [(0.25, "a"), (0.6, "b"), (0.75, "c")]
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bottom.setTicks([bticks, bticks])
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bottom.setStyle(stopAxisAtTick=(True, True))
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monkeypatch.setattr(bottom, "drawPicture", test_bottom)
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left = plot.getAxis("left")
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lticks = [(0.125, "a"), (0.55, "b"), (0.875, "c")]
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left.setTicks([lticks, lticks])
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left.setRange(0, 1)
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left.setStyle(stopAxisAtTick=(True, True))
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monkeypatch.setattr(left, "drawPicture", test_left)
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plot.show()
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app.processEvents()
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plot.close()
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def test_AxisItem_viewUnlink():
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plot = pg.PlotWidget()
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view = plot.plotItem.getViewBox()
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axis = plot.getAxis("bottom")
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assert axis.linkedView() == view
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axis.unlinkFromView()
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assert axis.linkedView() is None
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class FakeSignal:
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def __init__(self):
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self.calls = []
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def connect(self, *args, **kwargs):
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self.calls.append('connect')
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def disconnect(self, *args, **kwargs):
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self.calls.append('disconnect')
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class FakeView:
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def __init__(self):
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self.sigYRangeChanged = FakeSignal()
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self.sigXRangeChanged = FakeSignal()
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self.sigResized = FakeSignal()
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def test_AxisItem_bottomRelink():
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axis = pg.AxisItem('bottom')
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fake_view = FakeView()
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axis.linkToView(fake_view)
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assert axis.linkedView() == fake_view
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assert fake_view.sigYRangeChanged.calls == []
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assert fake_view.sigXRangeChanged.calls == ['connect']
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assert fake_view.sigResized.calls == ['connect']
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axis.unlinkFromView()
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assert fake_view.sigYRangeChanged.calls == []
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assert fake_view.sigXRangeChanged.calls == ['connect', 'disconnect']
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assert fake_view.sigResized.calls == ['connect', 'disconnect']
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def test_AxisItem_leftRelink():
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axis = pg.AxisItem('left')
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fake_view = FakeView()
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axis.linkToView(fake_view)
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assert axis.linkedView() == fake_view
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assert fake_view.sigYRangeChanged.calls == ['connect']
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assert fake_view.sigXRangeChanged.calls == []
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assert fake_view.sigResized.calls == ['connect']
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axis.unlinkFromView()
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assert fake_view.sigYRangeChanged.calls == ['connect', 'disconnect']
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assert fake_view.sigXRangeChanged.calls == []
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assert fake_view.sigResized.calls == ['connect', 'disconnect']
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def test_AxisItem_tickFont(monkeypatch):
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def collides(textSpecs):
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fontMetrics = pg.Qt.QtGui.QFontMetrics(font)
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for rect, _, text in textSpecs:
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br = fontMetrics.tightBoundingRect(text)
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if rect.height() < br.height() or rect.width() < br.width():
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return True
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return False
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def test_collision(p, axisSpec, tickSpecs, textSpecs):
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assert not collides(textSpecs)
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plot = pg.PlotWidget()
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bottom = plot.getAxis("bottom")
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left = plot.getAxis("left")
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font = bottom.linkedView().font()
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font.setPointSize(25)
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bottom.setStyle(tickFont=font)
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left.setStyle(tickFont=font)
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monkeypatch.setattr(bottom, "drawPicture", test_collision)
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monkeypatch.setattr(left, "drawPicture", test_collision)
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plot.show()
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app.processEvents()
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plot.close()
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def test_AxisItem_label_visibility():
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"""Test the visibility of the axis item using `setLabel`"""
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axis = pg.AxisItem('left')
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assert axis.labelText == ''
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assert axis.labelUnits == ''
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assert not axis.label.isVisible()
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axis.setLabel(text='Position', units='mm')
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assert axis.labelText == 'Position'
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assert axis.labelUnits == 'mm'
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assert axis.label.isVisible()
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# XXX: `None` is converted to empty strings.
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axis.setLabel(text=None, units=None)
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assert axis.labelText == ''
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assert axis.labelUnits == ''
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assert not axis.label.isVisible()
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axis.setLabel(text='Current', units=None)
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assert axis.labelText == 'Current'
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assert axis.labelUnits == ''
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assert axis.label.isVisible()
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axis.setLabel(text=None, units=None)
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assert not axis.label.isVisible()
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axis.setLabel(text='', units='V')
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assert axis.labelText == ''
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assert axis.labelUnits == 'V'
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assert axis.label.isVisible()
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