Add test_clear for PlotDataItem class

2018-04-05 11:13:58 +08:00 · 2018-04-05 11:13:58 +08:00 · e4254172a5
commit e4254172a5
parent 7b9ba8634c
1 changed files with 9 additions and 0 deletions
--- a/pyqtgraph/graphicsItems/tests/test_PlotDataItem.py
+++ b/pyqtgraph/graphicsItems/tests/test_PlotDataItem.py
@ -49,3 +49,12 @@ def test_setData():
    pdi.setData({'x': x, 'y': y})
    assert len(pdi.xData) == 200
    assert len(pdi.yData) == 200
+
+def test_clear():
+    y = list(np.random.normal(size=100))
+    x = np.linspace(5, 10, 100)
+    pdi = pg.PlotDataItem(x, y)
+    pdi.clear()
+
+    assert pdi.xData == None
+    assert pdi.yData == None