def METHOD_NAME(qtbot):
    """ Verify that all curves are removed from a waveform plot when clearCurves() is called """
    # Create a plot with two curves added to it
    waveform_plot = PyDMWaveformPlot()
    qtbot.addWidget(waveform_plot)
    data_one = WaveformCurveItem()
    data_two = WaveformCurveItem()
    waveform_plot.addCurve(data_one)
    waveform_plot.addCurve(data_two)
    assert len(waveform_plot.plotItem.curves) == 2  # Confirm that the curves were added properly
    waveform_plot.clearCurves()
    assert len(waveform_plot.plotItem.curves) == 0  # Now they should be gone