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add test case for the PlotDataItem.clear() in stepMode

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This commit is contained in:
Mikhail Terekhov 2016-12-15 09:26:19 -05:00 committed by Mikhail Terekhov
parent 240889c460
commit c238be004e
1 changed files with 9 additions and 3 deletions
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12
pyqtgraph/graphicsItems/tests/test_PlotDataItem.py
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@ -9,16 +9,16 @@ def test_fft():
x = np.linspace(0, 1, 1000)
y = np.sin(2 * np.pi * f * x)
pd = pg.PlotDataItem(x, y)
pd.setFftMode(True)
pd.setFftMode(True)
x, y = pd.getData()
assert abs(x[np.argmax(y)] - f) < 0.03
x = np.linspace(0, 1, 1001)
y = np.sin(2 * np.pi * f * x)
pd.setData(x, y)
x, y = pd.getData()
assert abs(x[np.argmax(y)]- f) < 0.03
pd.setLogMode(True, False)
x, y = pd.getData()
assert abs(x[np.argmax(y)] - np.log10(f)) < 0.01
@ -58,3 +58,9 @@ def test_clear():
assert pdi.xData == None
assert pdi.yData == None
def test_clear_in_step_mode():
w = pg.PlotWidget()
c = pg.PlotDataItem([1,4,2,3], [5,7,6], stepMode=True)
w.addItem(c)
c.clear()