def test_minus(self):
x, y = 2, 1
instance = Calculator(x, y)
assert instance.minus() == x - y, "Some issue in Minus Method"
def test_multi(self):
x, y = 2, 1
instance = Calculator(x, y)
assert instance.multi() == x * y, "Some issue in Multi Method"
def test_add(self):
x, y = 1, 2
instance = Calculator(x, y)
assert instance.add() == x + y, "Some issue in Add Method"
def test_div(self):
x, y = 2, 1
instance = Calculator(x, y)
assert instance.division() == x / y, "Some issue in Division Method"