def test_len_3(self): v = collatz_len(1) self.assertEqual(v, 1)
def test_len_4(self): v = collatz_len(900) self.assertEqual(v, 55)
def test_len_1(self): v = collatz_len(5) self.assertEqual(v, 6)
def test_len_2(self): v = collatz_len(10) self.assertEqual(v, 7)
def test_len_6(self): v = collatz_len(12678) self.assertEqual(v, 56)
def test_len_5(self): v = collatz_len(23456) self.assertEqual(v, 101)
def test_len_3 (self) : v = collatz_len(201, 210) self.assert_(v == 89)
def test_len_2 (self) : v = collatz_len(100, 200) self.assert_(v == 125)
def test_len_1 (self) : v = collatz_len(1, 10) self.assert_(v == 20)