Function test_lognorm_invalid

lib/matplotlib/tests/test_colors.py:500–506

(vmin, vmax)

@pytest.mark.parametrize("vmin,vmax", [[-1, 2], [3, 1]])
def test_lognorm_invalid(vmin, vmax):
    # Check that invalid limits in LogNorm error
    norm = mcolors.LogNorm(vmin=vmin, vmax=vmax)
    with pytest.raises(ValueError):
        norm(1)
    with pytest.raises(ValueError):
        norm.inverse(1)


def test_LogNorm():