def METHOD_NAME():
    """test that repeatedly getting and setting the gamma table has no
    cumulative effect."""
    startGammaTable = None
    n_repeats = 2
    for _ in range(n_repeats):
        win = visual.Window([600, 600], autoLog=False)
        for _ in range(5):
            win.flip()
        if startGammaTable is None:
            startGammaTable = win.backend.getGammaRamp()
        else:
            currGammaTable = win.backend.getGammaRamp()
            assert numpy.all(currGammaTable == startGammaTable)
        win.close()