def test_int(self):
''' Integers. '''
self.assertEqual(util.gcd(3, 4), 1)
self.assertEqual(util.gcd(8, 4), 4)
self.assertEqual(util.gcd(3, 9), 3)
self.assertEqual(util.gcd(15, 12), 3)
self.assertEqual(util.gcd(300, 410), 10)
def test_float(self):
''' Float. '''
with self.assertRaisesRegexp(TypeError, '.*integers.*'):
_ = util.gcd(1., 2)
with self.assertRaisesRegexp(TypeError, '.*integers.*'):
_ = util.gcd(1, 2.2)
with self.assertRaisesRegexp(TypeError, '.*integers.*'):
_ = util.gcd(1, 2, 3, 4.2)
def test_non_positive(self):
''' Non-positive values. '''
with self.assertRaisesRegexp(ValueError, '.*positive.*'):
_ = util.gcd(-1, 2)
with self.assertRaisesRegexp(ValueError, '.*positive.*'):
_ = util.gcd(1, -2)
with self.assertRaisesRegexp(ValueError, '.*positive.*'):
_ = util.gcd(3, 6, 9, 12, -21)
with self.assertRaisesRegexp(ValueError, '.*positive.*'):
_ = util.gcd(3, 0)
with self.assertRaisesRegexp(ValueError, '.*positive.*'):
_ = util.gcd(0, 3)
with self.assertRaisesRegexp(ValueError, '.*positive.*'):
_ = util.gcd(0, 5, 10, 15, 20)
with self.assertRaisesRegexp(ValueError, '.*positive.*'):
_ = util.gcd(5, 10, 0, 15, 20)
def test_no_arg(self):
''' No argument. '''
with self.assertRaises(ValueError):
_ = util.gcd()
def test_single(self):
''' Single value. '''
for v in range(1, 10):
self.assertEqual(util.gcd(v), v)
def test_multi(self):
''' Multiple values. '''
self.assertEqual(util.gcd(4, 8, 10), 2)
self.assertEqual(util.gcd(*range(6, 21, 3)), 3)