def test__sub__(self):
print("Testing __add__ method")
twoD1 = TwoDPoint(1, 1)
twoD2 = TwoDPoint(1, 0)
twoD3 = TwoDPoint(0, 1)
self.assertEqual(twoD1.__sub__(twoD2), twoD3)
self.assertEqual(twoD1 - twoD2, twoD3)
self.assertNotEqual(twoD1.__sub__(twoD3), twoD3)
self.assertNotEqual(twoD1 - twoD1, twoD3)
with self.assertRaises(ValueError) as assertStatement:
twoD1 - "string"
self.assertEqual("Subtraction is possibile only between TwoDPoint",
str(assertStatement.exception))
print("Done testing __add__ method successfully")
class TestTwoDPoint(TestCase):
def setUp(self) -> None:
self.p1 = TwoDPoint(1, 2)
self.p2 = TwoDPoint(1, 2)
self.p3 = TwoDPoint(3, 2)
def test_from_coordinates(self):
list_of_points = [
TwoDPoint(0, 4),
TwoDPoint(6, 4),
TwoDPoint(6, 0),
TwoDPoint(0, 0)
]
self.assertEqual(TwoDPoint.from_coordinates([0, 4, 6, 4, 6, 0, 0, 0]),
list_of_points) # TODO
def test_eq(self):
self.assertTrue(self.p1.__eq__(self.p2))
self.assertFalse(self.p1.__eq__(self.p3))
self.assertFalse(self.p3.__eq__(self.p2))
def test_ne(self):
self.assertTrue(self.p1.__ne__(self.p3))
self.assertTrue(self.p2.__ne__(self.p3))
self.assertFalse(self.p1.__ne__(self.p2))
def test_str(self):
self.assertEqual(self.p1.__str__(), "(1, 2)")
def test_add(self):
self.assertEqual(self.p1.__add__(self.p3), TwoDPoint(4, 4))
def test_sub(self):
self.assertEqual(self.p3.__sub__(self.p1), TwoDPoint(2, 0))
def test__sub(self):
point1 = TwoDPoint(3, 2)
point2 = TwoDPoint(3, 2)
self.assertTrue(point1.__sub__(point2).__eq__(TwoDPoint(0, 0)))