Function test_parentless_mappable

lib/matplotlib/tests/test_colorbar.py:333–336

()

def test_parentless_mappable():
    pc = mpl.collections.PatchCollection([], cmap=plt.get_cmap('viridis'), array=[])
    with pytest.raises(ValueError, match='Unable to determine Axes to steal'):
        plt.colorbar(pc)


@image_comparison(['colorbar_closed_patch.png'], remove_text=True,