def test_add(self):
"""Checks the add function"""
fraction3 = Fraction(1, 2) + Fraction(1, 2)
self.assertEqual(str(fraction3), "1/1")
self.assertTrue(str(Fraction(2, 4) + Fraction(4, 2)) != '3/1')
self.assertFalse(str(Fraction(2, 1) + Fraction(4, 2)) == '3/1')
self.assertFalse(str(Fraction(2, 1) + Fraction(4, 2)) == '6/1')
self.assertTrue(str(Fraction(-2, 1) + Fraction(4, -2)) == '-4/1')
def test_mul(self):
"""Checks the Multiplication Function"""
fraction3 = Fraction(4, 2) * Fraction(1, 4)
self.assertEqual(str(fraction3), "1/2")
self.assertNotEqual(str(Fraction(8, 2) * Fraction(1, 9)), "1/2")
self.assertTrue(str(Fraction(8, 2) * Fraction(2, 16)) == "1/2")
self.assertFalse(str(Fraction(8, 2) * Fraction(2, -16)) == "1/2")
self.assertTrue(str(Fraction(8, 2) * Fraction(2, -16)) == "-1/2")
def test_init(self):
"""test the fraction class"""
fraction1 = Fraction(1, 2)
self.assertEqual(fraction1.numerator, 1)
self.assertEqual(fraction1.denominator, 2)
with self.assertRaises(ZeroDivisionError):
Fraction(1, 0)
def test_div(self):
"""Checks the Devide Function"""
fraction3 = Fraction(7, 10) / Fraction(4, 5)
self.assertEqual(str(fraction3), "7/8")
self.assertNotEqual(str(Fraction(7, 10) / Fraction(4, 5)), "9/8")
self.assertTrue(str(Fraction(7, 10) / Fraction(-4, 5)) == "-7/8")
self.assertFalse(str(Fraction(7, 10) / Fraction(4, 8)) == "7/8")
def test_simplify(self):
""""Check the simplify command"""
self.assertTrue((str(Fraction(9, 27).simplify()) == str(Fraction(1,
3))))
self.assertFalse(Fraction(9, 27).simplify() == Fraction(1, 6))
self.assertTrue(Fraction(9, 27) != Fraction(10, 3))
self.assertTrue(Fraction(81, 9), Fraction(18, 2))
def test_GreaterThanorEqualto(self):
"""check greater than or equals function"""
self.assertTrue(Fraction(7, 10) >= Fraction(7, 10))
self.assertFalse(Fraction(7, 10) >= Fraction(7, 8))
def test_GreaterThan(self):
"""check the greater than function"""
self.assertTrue(Fraction(9, 10) > Fraction(7, 10))
self.assertTrue(Fraction(9, 10) > Fraction(7, 10))
self.assertTrue(Fraction(9, 10) > Fraction(7, 10))
self.assertTrue(Fraction(9, 10) > Fraction(7, 10))
def test_notequal(self):
"""check the not equals function"""
self.assertTrue(Fraction(7, 10) != Fraction(-6, 10))
self.assertFalse(Fraction(7, 90) == Fraction(9, 10))
self.assertEqual(Fraction(-6, 10), Fraction(-6, 10))
self.assertNotEqual(Fraction(7, 10), Fraction(-6, 10))
def test_equal(self):
"""Check the equals to function"""
self.assertTrue(Fraction(7, 10) == Fraction(14, 20))
self.assertFalse(Fraction(1, 2) == Fraction(2, 8))
self.assertEqual(Fraction(-1, 2), Fraction(4, -8))
self.assertNotEqual(Fraction(1, 2), Fraction(4, -8))
def test_sub(self):
"""Checks the Sub Function"""
fraction3 = Fraction(1, 2) - Fraction(1, 2)
self.assertEqual(str(fraction3), "0/1")
self.assertTrue(str(Fraction(1, 2) - Fraction(-1, 4)) == "3/4")
self.assertFalse(str(Fraction(1, 2) - Fraction(-1, 4)) != "3/4")
def test_LessThanorEqualto(self):
"""check the less than or equals function"""
self.assertTrue(Fraction(-7, 10) <= Fraction(-7, 10))
self.assertTrue(Fraction(-7, 1) <= Fraction(-7, 10))
self.assertFalse(Fraction(7, 1) <= Fraction(7, 10))
def test_LessThan(self):
"""check the less than function"""
self.assertTrue(Fraction(-7, 10) < Fraction(15, 10))
self.assertFalse(Fraction(7, 1) < Fraction(15, 10))