def METHOD_NAME(self):
    """
    Test :func:`colour.adaptation.zhai2018.chromatic_adaptation_Zhai2018`
    definition nan support.
    """
    cases = [-1.0, 0.0, 1.0, -np.inf, np.inf, np.nan]
    cases = np.array(list(set(product(cases, repeat=3))))
    chromatic_adaptation_Zhai2018(
        cases, cases, cases, cases[0, 0], cases[0, 0], cases
    )