def test_equals_2(self): self.assertEqual(list_depth([]), 1)
def test_equals(self): self.assertEqual(list_depth([True]), 1)
def test_equals_4(self): self.assertEqual( list_depth([1, [2, [3, [4, [5, [6], 5], 4], 3], 2], 1]), 6)
def test_equals_5(self): self.assertEqual(list_depth([2.0, [2, 0], 3.7, [3, 7], 6.7, [6, 7]]), 2)
def test_equals_3(self): self.assertEqual(list_depth([2, 'yes', [True, False]]), 2)