class TestCalculator1(unittest.TestCase): def setUp(self): self.calc = Calculator() # test add function # def test_calculator_add_method_returns_correct_result(self): self.assertEqual(4, self.calc.add1(2, 2)) self.assertEqual(0, self.calc.add1(-5, 5)) self.assertEqual(-8, self.calc.add1(-4,-4)) def test_calculator_add_method_returns_error_result(self): self.assertEqual(5, self.calc.add1(2, 2)) def test_calculator_add_method_returns_nunnumer_error_result(self): self.assertEqual(4, self.calc.add1("two", 2))