def test_int(self):
''' Integers. '''
self.assertEqual(util.lcm(3, 4), 12)
self.assertEqual(util.lcm(8, 4), 8)
self.assertEqual(util.lcm(3, 9), 9)
self.assertEqual(util.lcm(15, 12), 60)
self.assertEqual(util.lcm(300, 410), 12300)
def test_float(self):
''' Float. '''
with self.assertRaisesRegexp(TypeError, '.*integers.*'):
_ = util.lcm(1., 2)
with self.assertRaisesRegexp(TypeError, '.*integers.*'):
_ = util.lcm(1, 2.2)
with self.assertRaisesRegexp(TypeError, '.*integers.*'):
_ = util.lcm(1, 2, 3, 4.2)
def test_non_positive(self):
''' Non-positive values. '''
with self.assertRaisesRegexp(ValueError, '.*positive.*'):
_ = util.lcm(-1, 2)
with self.assertRaisesRegexp(ValueError, '.*positive.*'):
_ = util.lcm(1, -2)
with self.assertRaisesRegexp(ValueError, '.*positive.*'):
_ = util.lcm(3, 6, 9, 12, -21)
with self.assertRaisesRegexp(ValueError, '.*positive.*'):
_ = util.lcm(3, 0)
with self.assertRaisesRegexp(ValueError, '.*positive.*'):
_ = util.lcm(0, 3)
with self.assertRaisesRegexp(ValueError, '.*positive.*'):
_ = util.lcm(0, 5, 10, 15, 20)
with self.assertRaisesRegexp(ValueError, '.*positive.*'):
_ = util.lcm(5, 10, 0, 15, 20)
def test_no_arg(self):
''' No argument. '''
with self.assertRaises(ValueError):
_ = util.lcm()
def test_single(self):
''' Single value. '''
for v in range(1, 10):
self.assertEqual(util.lcm(v), v)
def test_multi(self):
''' Multiple values. '''
self.assertEqual(util.lcm(4, 8, 10), 40)
self.assertEqual(util.lcm(*range(6, 21, 3)), 180)
