Some functional util code

tests/test_utils.py

@@ -0,0 +1,20 @@
+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()