def METHOD_NAME(self):
    """
    Test :func:`colour.graph.conversion.describe_conversion_path`
    definition.
    """
    describe_conversion_path("Spectral Distribution", "sRGB")
    describe_conversion_path("Spectral Distribution", "sRGB", mode="Long")
    describe_conversion_path(
        "Spectral Distribution",
        "sRGB",
        mode="Extended",
        sd_to_XYZ={
            "illuminant": SDS_ILLUMINANTS["FL2"],
            "return": np.array([0.47924575, 0.31676968, 0.17362725]),
        },
    )