def test_valid_index(self): self.assertEqual(find(lambda w: w > 2, [0, 1, 2, 3, 4, 5]), 3)
def test_not_found(self): self.assertEqual(functional.find(lambda w: w > 50, range(5)), -1)
def test_not_found(self): self.assertEqual(find(lambda w: w > 50, range(5)), -1)
def test_valid_index(self): self.assertEqual(functional.find(lambda w: w > 2, [0, 1, 2, 3, 4, 5]), 3)