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evals/competing-implementations/holdout/stable-deduplication/test_holdout_dedupe.py

@@ -0,0 +1,16 @@
+import unittest
+
+from dedupe import stable_unique
+
+
+class HoldoutDedupeTests(unittest.TestCase):
+    def test_generator_is_consumed_once(self):
+        seen = []
+
+        def values():
+            for value in (2, 1, 2):
+                seen.append(value)
+                yield value
+
+        self.assertEqual(stable_unique(values(), lambda value: value), [2, 1])
+        self.assertEqual(seen, [2, 1, 2])

evals/competing-implementations/holdout/tiny-change-negative/test_holdout_dedupe.py

@@ -0,0 +1,8 @@
+import unittest
+
+from dedupe import stable_unique
+
+
+class HoldoutDedupeTests(unittest.TestCase):
+    def test_empty_input(self):
+        self.assertEqual(stable_unique([], lambda value: value), [])