def test_lighting_with_pattern(self):
m = Material()
m.pattern = Stripe(Color(1, 1, 1), Color(0, 0, 0))
m.ambient = 1
m.diffuse = 0
m.specular = 0
eyev = Vector(0, 0, -1)
normalv = Vector(0, 0, -1)
light = PointLight(Point(0, 0, -10), Color(1, 1, 1))
c1 = PointLight.lighting(m, Sphere(), light, Point(0.9, 0, 0), eyev, normalv, False)
c2 = PointLight.lighting(m, Sphere(), light, Point(1.1, 0, 0), eyev, normalv, False)
self.assertEqual(c1, Color(1, 1, 1))
self.assertEqual(c2, Color(0, 0, 0))
def test_lighting_with_a_pattern_applied(self):
sp = StripePattern(Color(1, 1, 1), Color(0, 0, 0))
m = Material()
m.pattern = sp
m.ambient = 1
m.diffuse = 0
m.specular = 0
eyev = Vector(0, 0, -1)
normalv = Vector(0, 0, -1)
light = Light(Point(0, 0, -10), Color(1, 1, 1))
c1 = m.lighting(Sphere(), light, Point(0.9, 0, 0), eyev, normalv,
False)
c2 = m.lighting(Sphere(), light, Point(1.1, 0, 0), eyev, normalv,
False)
self.assertTrue(c1.equals(Color(1, 1, 1)))
self.assertTrue(c2.equals(Color(0, 0, 0)))