def METHOD_NAME(self):
    """Test IRAFStarFinder with a mask."""
    starfinder = IRAFStarFinder(threshold=10, fwhm=1.5)
    mask = np.zeros(DATA.shape, dtype=bool)
    mask[100:200] = True
    tbl1 = starfinder(DATA)
    tbl2 = starfinder(DATA, mask=mask)
    assert len(tbl1) > len(tbl2)