def test_init_error(self):
with self.assertRaises(ValueError):
Fraction(-1, 1)
with self.assertRaises(ValueError):
Fraction(1, -1)
with self.assertRaises(ZeroDivisionError):
Fraction(1, 0)
def test_ipart(self):
self.assertEqual(Fraction(6, 4).ipart(), 1)
def test_str(self):
self.assertEqual(Fraction(2, 3).__str__(), '2/3')
def test_read(self):
fraction = Fraction(1, 1)
with patch('builtins.input', side_effect=['2', '3']):
fraction.read()
self.assertEqual(fraction.numerator, 2)
self.assertEqual(fraction.denominator, 3)
def test_read_except_type(self):
fraction = Fraction(1, 1)
with patch('builtins.input', side_effect=['one', 'one']):
fraction.read()
self.assertEqual(fraction.numerator, 1)
self.assertEqual(fraction.denominator, 1)
def test_denominator_except_type(self):
fraction = Fraction(1, 1)
fraction.denominator = 'one'
self.assertEqual(fraction.denominator, 1)
def test_denominator_except_zero(self):
fraction = Fraction(1, 1)
fraction.denominator = 0
self.assertEqual(fraction.denominator, 1)
def test_denominator_except_value(self):
fraction = Fraction(1, 1)
fraction.denominator = -1
self.assertEqual(fraction.denominator, 1)
def test_denominator(self):
self.assertEqual(Fraction(1, 1).denominator, 1)
def test_numerator_except_type(self):
fraction = Fraction(1, 1)
fraction.numerator = 'one'
self.assertEqual(fraction.numerator, 1)
def test_numerator_except_value(self):
fraction = Fraction(1, 1)
fraction.numerator = -1
self.assertEqual(fraction.numerator, 1)
def test_numerator(self):
self.assertEqual(Fraction(1, 1).numerator, 1)