implement 'util.unique()'

2020-10-29 23:26:11 +01:00
parent 558cde139c
commit c3f01dc4e6
2 changed files with 21 additions and 1 deletions
--- a/test/test_util.py
+++ b/test/test_util.py
@@ -446,6 +446,16 @@ class TestOther(unittest.TestCase):
        self.assertCountEqual(
            util.advance(util.advance(items, 1), 2), range(3, 5))

+    def test_unique(self):
+        self.assertSequenceEqual(
+            list(util.unique("")), "")
+        self.assertSequenceEqual(
+            list(util.unique("AABBCC")), "ABC")
+        self.assertSequenceEqual(
+            list(util.unique("ABABABCAABBCC")), "ABC")
+        self.assertSequenceEqual(
+            list(util.unique([1, 2, 1, 3, 2, 1])), [1, 2, 3])
+
    def test_raises(self):
        func = util.raises(Exception)
        with self.assertRaises(Exception):