def test_hex_must_be_valid(self):
with self.assertRaises(ValueError):
Color.from_hex("0B986")
with self.assertRaises(ValueError):
Color.from_hex("#0B986")
with self.assertRaises(ValueError):
Color.from_hex("")
def test_hex_must_be_str(self):
with self.assertRaises(TypeError):
Color.from_hex(123)
def test_can_get_color_from_hex_without_hash(self):
color = Color.from_hex("0B9586")
self.assertEqual(color._r, 11)
self.assertEqual(color._g, 149)
self.assertEqual(color._b, 134)