import unittest from ptulsconv.docparser import apply_appends class MyTestCase(unittest.TestCase): def test_something(self): v = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] expected = [1, 2, 7, 5, 6, 15, 9, 10] should = (lambda x, y: y % 4 == 0) do_combine = (lambda x, y: x + y) r = apply_appends(iter(v), should, do_combine) r1 = list(r) self.assertEqual(r1, expected) if __name__ == '__main__': unittest.main()