def test_AdditionByZero(self):
a = Rational('4', '3')
b = Rational('0', '1')
c = Rational('-7', '4')
d = Rational('0', '-5')
result1 = a.__add__(b)
result2 = c.__add__(d)
self.assertEqual(result1, Rational('4', '3'))
self.assertEqual(result2, Rational('-7', '4'))
def test_AdditionOfTwoDifferentRationalNumbers(self):
a = Rational('5', '3')
b = Rational('5', '2')
c = Rational('-4', '3')
d = Rational('-8', '5')
e = Rational('-7', '-4')
f = Rational('-5', '-6')
g = Rational('8', '-9')
h = Rational('5', '-4')
result1 = a.__add__(b)
result2 = c.__add__(d)
result3 = e.__add__(f)
result4 = g.__add__(h)
self.assertEqual(result1, Rational('25', '6'))
self.assertEqual(result2, Rational('-44', '15'))
self.assertEqual(result3, Rational('31', '12'))
self.assertEqual(result4, Rational('-77', '36'))
def test_AddOfTwoIntegerRationalNumbers(self):
a = Rational('3', '1')
b = Rational('5', '1')
c = Rational('-4', '1')
d = Rational('6', '1')
e = Rational('4', '1')
f = Rational('-3', '1')
g = Rational('-9', '1')
h = Rational('-8', '1)')
result1 = a.__add__(b)
result2 = c.__add__(d)
result3 = e.__add__(f)
result4 = g.__add__(h)
self.assertEqual(result1, Rational('8', '1'))
self.assertEqual(result2, Rational('2', '1'))
self.assertEqual(result3, Rational('1', '1'))
self.assertEqual(result4, Rational('-17', '1'))
def test_AddBySelf(self):
a = Rational('5', '3')
b = Rational('5', '3')
c = Rational('-4', '2')
d = Rational('-4', '2')
e = Rational('-7', '-4')
f = Rational('-7', '-4')
g = Rational('8', '-9')
h = Rational('8', '-9')
result1 = a.__add__(b)
result2 = c.__add__(d)
result3 = e.__add__(f)
result4 = g.__add__(h)
self.assertEqual(result1, Rational('10', '3'))
self.assertEqual(result2, Rational('-4', '1'))
self.assertEqual(result3, Rational('-7', '2'))
self.assertEqual(result4, Rational('-16', '9'))
def test_Exception(self):
r = Rational()
self.assertRaises(ValueError, r.__add__(True), "Booleans not allowed")
def test_AddAStr(self):
s = Rational()
self.assertRaises(TypeError, s.__add__("String"))
def test_AddAFalseBool(self):
b = Rational()
self.assertRaises(TypeError, b.__add__(False))
e = Rational('-7', '-4')
f = Rational('-5', '-6')
g = Rational('8', '-9')
h = Rational('5', '-4')
result1 = a.__add__(b)
result2 = c.__add__(d)
result3 = e.__add__(f)
result4 = g.__add__(h)
self.assertEqual(result1, Rational('25', '6'))
self.assertEqual(result2, Rational('-44', '15'))
self.assertEqual(result3, Rational('31', '12'))
self.assertEqual(result4, Rational('-77', '36'))
def test_Exception(self)
r = Rational()
self.assertRaises(ValueError, r.__add__(True), "Booleans not allowed")
def test_AddOfTwoIntegerRationalNumbers(self):
a = Rational('3', '1')
b = Rational('5', '1')
c = Rational('-4', '1')
d = Rational('6', '1')
e = Rational('4', '1')
f = Rational('-3', '1')
g = Rational('-9', '1')
h = Rational('-8', '1)')
result1 = a.__add__(b)
result2 = c.__add__(d)
result3 = e.__add__(f)
result4 = g.__add__(h)