class TestCalc(unittest.TestCase):
def setUp(self):
self.a = 13
self.b = 2
self.calc = Calculator(self.a, self.b)
def test_sum(self):
self.assertEqual(self.calc.sum(), 15)
def test_sub(self):
self.assertEqual(self.calc.sub(), 11)
def test_mul(self):
self.assertEqual(self.calc.mul(), 26)
def test_div(self):
self.assertEqual(self.calc.div(), 13 / 2)
def test_substract_larger_number_from_smaller_obtains_difference(self):
calc = Calculator()
res = calc.sub(5, 55)
self.assertEqual(-50, res)