class TestRationalCalculator(unittest.TestCase):
def setUp(self):
self.number = RationalNumber(4,5)
self.number2 = RationalNumber(3,7)
self.number3 = RationalNumber(1,3)
def it_return_the_numerator(self):
self.number.numerator |should| equal_to(4)
def it_returns_the_denominator(self):
self.number.denominator |should| equal_to(5)
def it_returns_the_representation(self):
self.number.__repr__() |should| equal_to('4/5')
def it_returns_as_floating_point(self):
self.number3.decimal() |should| equal_to(0.33333333333333331)
self.number3.decimal(3) |should| equal_to(0.333)
self.number3.decimal(5) |should| equal_to(0.33333)
def test_sum_of_rational_numbers(self):
self.number + self.number2 |should| equal_to(RationalNumber(43, 35))
def test_substract_of_rational_numbers(self):
self.number - self.number2 |should| equal_to(RationalNumber(13, 35))
def test_multiply_of_rational_numbers(self):
self.number * self.number2 |should| equal_to(RationalNumber(12, 35))
def test_divisio_of_rational_numbers(self):
self.number / self.number2 |should| equal_to(RationalNumber(28, 15))
def setUp(self):
self.number = RationalNumber(4,5)
self.number2 = RationalNumber(3,7)
self.number3 = RationalNumber(1,3)
