tukey plot_simultaneous() smoke test for statsmodels/stats/tests/test_pairwise.py

test_plot_simulatneous.py

try:
    import matplotlib.pyplot as plt  # makes plt available for test functions
    have_matplotlib = True
except ImportError:
    have_matplotlib = False
    
class CheckTuckeyHSDMixin(object):

    @classmethod
    def setup_class_(cls):
        cls.mc = MultiComparison(cls.endog, cls.groups)
        cls.res = cls.mc.tukeyhsd(alpha=cls.alpha)
        
    @skipif(not have_matplotlib, reason='matplotlib not available')
    def test_plot_simultaneous(self):
        result = pairwise_tukeyhsd(self.endog, self.groups, alpha=self.alpha)
        # Smoke test for figure
        fig = result.plot_simultaneous()
        assert_equal(isinstance(fig, plt.Figure), True)
        plt.close(fig)