test_ScatterPlotItem.py 文件源码

def test_init_spots():
    plot = pg.PlotWidget()
    # set view range equal to its bounding rect. 
    # This causes plots to look the same regardless of pxMode.
    plot.setRange(rect=plot.boundingRect())
    spots = [
        {'x': 0, 'y': 1},
        {'pos': (1, 2), 'pen': None, 'brush': None, 'data': 'zzz'},
    ]
    s = pg.ScatterPlotItem(spots=spots)

    # Check we can display without errors
    plot.addItem(s)
    app.processEvents()
    plot.clear()

    # check data is correct
    spots = s.points()

    defPen = pg.mkPen(pg.getConfigOption('foreground'))

    assert spots[0].pos().x() == 0
    assert spots[0].pos().y() == 1
    assert spots[0].pen() == defPen
    assert spots[0].data() is None

    assert spots[1].pos().x() == 1
    assert spots[1].pos().y() == 2
    assert spots[1].pen() == pg.mkPen(None)
    assert spots[1].brush() == pg.mkBrush(None)
    assert spots[1].data() == 'zzz'