def test_non_fizzbuzz_number(self):
"""_Number stringifies as the number when not divisible by 3 nor 5"""
for i in [2, 13, 1001]:
n = fizzbuzz._Number(i)
self.assertFalse(n.is_fizz())
self.assertFalse(n.is_buzz())
self.assertFalse(n.is_fizzbuzz())
self.assertEqual(str(n), str(i))
def test_is_fizzbuzz(self):
"""_Number.is_fizzbuzz()"""
self.assertTrue(fizzbuzz._Number(0).is_fizzbuzz())
self.assertTrue(fizzbuzz._Number(15).is_fizzbuzz())
self.assertFalse(fizzbuzz._Number(5).is_fizzbuzz())
self.assertFalse(fizzbuzz._Number(3).is_fizzbuzz())
def test_fizzbuzz_number(self):
"""_Number stringifies as 'fizzbuzz' when divisible by 3 and 5"""
for i in [0, 15, 225]:
n = fizzbuzz._Number(i)
self.assertTrue(n.is_fizzbuzz())
self.assertEqual(str(n), 'fizzbuzz')
def test_buzz_number(self):
"""_Number stringifies as 'buzz' when divisible by 3"""
for i in [5, 10, 500]:
n = fizzbuzz._Number(i)
self.assertEqual(str(n), 'buzz')
def test_fizz_number(self):
"""_Number stringifies as 'fizz' when divisible by 3"""
for i in [3, 6, 333]:
n = fizzbuzz._Number(i)
self.assertEqual(str(n), 'fizz')
def test_negative_number(self):
"""_Number doesn't allow negative numbers"""
with self.assertRaises(ValueError):
fizzbuzz._Number(-5)