def test_opacity_min_boundry(self): """Ensure opacity is not set below minimum allowable level.""" a = Actor('alien') a.opacity = -0.1 self.assertEqual(a.opacity, 0.0)
def test_opacity_max_boundry(self): """Ensure opacity is not set above maximum allowable level.""" a = Actor('alien') a.opacity = 1.1 self.assertEqual(a.opacity, 1.0)
def test_opacity_value(self): """Ensure opacity gives the value it was set to.""" a = Actor('alien') expected_opacity = 0.54321 a.opacity = expected_opacity self.assertEqual(a.opacity, expected_opacity)