def test_less_than_operator(self):
result = Number(-2) < Number(2)
self.assertEqual(result, True)
def test_addition(self):
result = Number(1) + Number(2)
self.assertEqual(result, 3)
def test_equality_operator(self):
result = Number(-2) == Number(2)
self.assertEqual(result, False)
def test_greater_than_operator(self):
result = Number(-2) > Number(2)
self.assertEqual(result, False)
def test_mod_of_division(self):
result = Number(3) % Number(2)
self.assertEqual(result, 1)
def test_mod_of_division_by_zero(self):
with self.assertRaises(ZeroDivisionError):
Number(3) / Number(0)
def test_multiplication(self):
result = Number(3) * Number(2)
self.assertEqual(result, 6)
def test_division(self):
result = Number(1) / Number(2)
self.assertAlmostEqual(result, 0.5)
def test_subtraction_less_than_greater(self):
with self.assertRaises(ValueError):
Number(3) - Number(4)
def test_subtraction(self):
result = Number(3) - Number(2)
self.assertEqual(result, 1)
def test_type_error(self):
with self.assertRaises(TypeError):
Number('first_value') + Number('second_value')