def test_wide_angle_backwards2(self): angle = angle_between(self._d, self._b) self.assertAlmostEqual(pi, angle)
def test_wide_angle_forwards(self): angle = angle_between(self._a, self._c) self.assertAlmostEqual(pi, angle)
def test_angle_forwards(self): angle = angle_between(self._a, self._b) self.assertAlmostEqual(pi/2, angle)
def test_angle_backwards2(self): angle = angle_between(self._c, self._d) self.assertAlmostEqual(pi/2, angle)
def test_angle_self(self): angle = angle_between(self._a, self._a) self.assertEqual(0, angle)