test_colorsys.py 文件源码

def test_hsv_values(self):
        values = [
            # rgb, hsv
            ((0.0, 0.0, 0.0), (  0  , 0.0, 0.0)), # black
            ((0.0, 0.0, 1.0), (4./6., 1.0, 1.0)), # blue
            ((0.0, 1.0, 0.0), (2./6., 1.0, 1.0)), # green
            ((0.0, 1.0, 1.0), (3./6., 1.0, 1.0)), # cyan
            ((1.0, 0.0, 0.0), (  0  , 1.0, 1.0)), # red
            ((1.0, 0.0, 1.0), (5./6., 1.0, 1.0)), # purple
            ((1.0, 1.0, 0.0), (1./6., 1.0, 1.0)), # yellow
            ((1.0, 1.0, 1.0), (  0  , 0.0, 1.0)), # white
            ((0.5, 0.5, 0.5), (  0  , 0.0, 0.5)), # grey
        ]
        for (rgb, hsv) in values:
            self.assertTripleEqual(hsv, colorsys.rgb_to_hsv(*rgb))
            self.assertTripleEqual(rgb, colorsys.hsv_to_rgb(*hsv))