def testFindIndex(self):
lst = [1, 2, 3]
self.assertEqual(1, find_index(lst, 2))
self.assertEqual(2, find_index(lst, 3))
def testFindIndexWithPredicate(self):
lst = [1, 2, 3]
self.assertEqual(1, find_index(lst, predicate=lambda i: i % 2 == 0))
self.assertEqual(0, find_index(lst, predicate=lambda i: i % 2 == 1))