def test_factorial_recursive_helper_zero(self):
actual = recursion.factorial_recursive_helper(0)
expected = 1
self.assertEqual(actual, expected)
def test_factorial_recursive_helper_larger_number(self):
actual = recursion.factorial_recursive_helper(6)
expected = 720
self.assertEqual(expected, actual)
def test_factorial_recursive_helper_medium_number(self):
actual = recursion.factorial_recursive_helper(10)
expected = 3628800
self.assertEqual(actual, expected)
def test_factorial_recursive_helper_large_number(self):
actual = recursion.factorial_recursive_helper(50)
expected = 30414093201713378043612608166064768844377641568960512000000000000
self.assertEqual(actual, expected)
def test_factorial_recursive_helper_two(self):
actual = recursion.factorial_recursive_helper(2)
expected = 2
self.assertEqual(actual, expected)
