def test_add_non_int_type(self):
with self.assertRaises(TypeError):
Calculator.add(2, "d")
def test_add_result(self):
self.assertEqual(Calculator.add(2, 3), 5)
self.assertEqual(Calculator.add(-2, -3), -5)
self.assertEqual(Calculator.add(-2, 3), 1)
self.assertEqual(Calculator.add(277777777, 50000000), 277777777 + 50000000)
def test_add_result_type(self):
self.assertIsInstance(Calculator.add(2, 3), int)
self.assertIsInstance(Calculator.add(-2, -3), int)
self.assertIsInstance(Calculator.add(-2, 3), int)
self.assertIsInstance(Calculator.add(277777777, 50000000), int)