def test_add_same_units(self): """Add two amounts having the same units. """ # Results in pounds self.failUnlessEqual(add_amount(2.0, 'pound', 0.5, 'pound'), 2.5) self.failUnlessEqual(add_amount(0.5, 'pound', 2.0, 'pound'), 2.5) # Results in ounces self.failUnlessEqual(add_amount(12.0, 'ounce', 4.0, 'ounce'), 16.0) self.failUnlessEqual(add_amount(4.0, 'ounce', 12.0, 'ounce'), 16.0)
def test_add_different_units(self): """Add two amounts having different units. """ # Results in pounds self.failUnlessEqual(add_amount(2, 'pound', 4, 'ounce'), 2.25) self.failUnlessEqual(add_amount(2, 'pound', 12, 'ounce'), 2.75) self.failUnlessEqual(add_amount(0.5, 'pound', 4, 'ounce'), 0.75) self.failUnlessEqual(add_amount(0.5, 'pound', 12, 'ounce'), 1.25) # Results in ounces self.failUnlessEqual(add_amount(4, 'ounce', 2, 'pound'), 36.0) self.failUnlessEqual(add_amount(12, 'ounce', 2, 'pound'), 44.0) self.failUnlessEqual(add_amount(4, 'ounce', 0.5, 'pound'), 12.0) self.failUnlessEqual(add_amount(12, 'ounce', 0.5, 'pound'), 20.0)