def test_n_factorial_8(self): eq_(40320, n_factorial(8))
def test_n_factorial_6(self): eq_(720, n_factorial(6))
def test_n_factorial_7(self): eq_(5040, n_factorial(7))
def test_n_factorial_4(self): eq_(24, n_factorial(4))
def test_n_factorial_5(self): eq_(120, n_factorial(5))
def test_n_factorial_3(self): eq_(6, n_factorial(3))
def test_n_factorial_9(self): eq_(362880, n_factorial(9))
def test_n_factorial_1(self): eq_(1, n_factorial(1))
def test_n_factorial_2(self): eq_(2, n_factorial(2))