def test_div(self):
calc = Calculator(-100000, 100000)
self.assertEqual(calc.div(1, 1), 1)
self.assertEqual(calc.div(0, 1), 0)
self.assertEqual(calc.div(100, 10), 10)
self.assertEqual(calc.div(1, 1), 1)
self.assertRaises(ZeroDivisionError, lambda: calc.div(1, 0))
def test_valid(self):
calc = Calculator(-100000, 100000)
self.assertRaises(ValueTooLowException,
lambda: calc.div(-100000000000, 1))
self.assertRaises(ValueTooHighException,
lambda: calc.div(100000000000, 1))
self.assertRaises(ValueTooLowException,
lambda: calc.div(1, -100000000000))
self.assertRaises(ValueTooHighException,
lambda: calc.div(1, 100000000000))
def test_div_throws_e_when_out_of_bounds_low(self):
with pytest.raises(ValueError):
c = Calculator()
c.div(-1001,100)
def test_div_throws_e_when_dividing_by_zero(self):
with pytest.raises(ZeroDivisionError):
c = Calculator()
c.div(50, 0)
def test_div_with_one_negative_one_positive_number(self):
c = Calculator()
assert c.div(-50, 10) == -5
def test_div_with_two_negative_numbers(self):
c = Calculator()
assert c.div(-50, -10) == 5
def test_div_with_two_positive_numbers(self):
c = Calculator()
assert c.div(50, 10) == 5
def test_div_by_zero(self):
with pytest.raises(ZeroDivisionError):
calculator = Calculator()
calculator.div(50,0)
def test_div_with_out_of_bounds_throws_e(self):
with pytest.raises(ValueError):
calculator = Calculator()
calculator.div(-1001,100)
def test_div_with_a_possitive_and_negative_number(self):
c = Calculator()
assert c.div(50,-10) == -5
class CalculatorTests(TestCase):
def setUp(self):
self.calculator = Calculator()
def test_mul_with_5_and_10(self):
assert self.calculator.mul(5, 10) == 50
def test_mul_with_two_positive_numbers(self):
assert self.calculator.mul(3, 7) == 21
def test_mul_with_two_negative_numbers(self):
assert self.calculator.mul(-8, -4) == 32
def test_mul_with_one_positive_and_one_negative_number(self):
assert self.calculator.mul(6, -3) == -18
def test_mul_raises_ValueError_if_a_too_high(self):
with pytest.raises(ValueError):
self.calculator.mul(1001, 2)
def test_mul_raises_ValueError_if_a_too_low(self):
with pytest.raises(ValueError):
self.calculator.mul(-1001, 2)
def test_mul_raises_ValueError_if_b_too_high(self):
with pytest.raises(ValueError):
self.calculator.mul(2, 1001)
def test_mul_raises_ValueError_if_b_too_low(self):
with pytest.raises(ValueError):
self.calculator.mul(2, -1001)
def test_div_with_two_positive_numbers(self):
assert self.calculator.div(10, 5) == 2
def test_div_with_two_negative_numbers(self):
assert self.calculator.div(-20, -5) == 4
def test_div_with_one_negative_and_one_positive(self):
assert self.calculator.div(-30, 5) == -6
def test_div_raises_ValueError_a_too_high(self):
with pytest.raises(ValueError):
self.calculator.div(1001, 2)
def test_div_raises_ValueError_b_too_high(self):
with pytest.raises(ValueError):
self.calculator.div(2, 1001)
def test_div_raises_ValueError_a_too_low(self):
with pytest.raises(ValueError):
self.calculator.div(-1001, 2)
def test_div_raises_ValueError_b_too_low(self):
with pytest.raises(ValueError):
self.calculator.div(2, -1001)
def test_div_raises_divide_by_zero_exception(self):
with pytest.raises(ZeroDivisionError):
self.calculator.div(2, 0)
def test_boundaries(self):
calc = Calculator(-100, 100)
self.assertRaises(ValueTooLowException, lambda: calc.div(-101, 1))
self.assertRaises(ValueTooHighException, lambda: calc.mul(101, 1))
self.assertEqual(calc.div(-100, 1), -100)
self.assertEqual(calc.mul(100, 1), 100)