def test_slate_gray(self):
lab = rgb2lab(hex_to_rgb("#708090"))
self.assertEqual(lab.L, 52.83625796271889)
self.assertAlmostEqual(lab.a, -2.1385958505868996, places=15)
self.assertEqual(lab.b, -10.57740141476744)
def test_black(self):
(red, green, blue) = hex_to_rgb("#000000")
self.assertEqual(red, 0)
self.assertEqual(green, 0)
self.assertEqual(blue, 0)
def test_slate_gray(self):
(red, green, blue) = hex_to_rgb("#708090")
self.assertEqual(red, 112)
self.assertEqual(green, 128)
self.assertEqual(blue, 144)
def test_white(self):
(red, green, blue) = hex_to_rgb("#FFFFFF")
self.assertEqual(red, 255)
self.assertEqual(green, 255)
self.assertEqual(blue, 255)