2 files changed, 11 insertions, 0 deletions
diff --git a/tests/regressiontests/utils/functional.py b/tests/regressiontests/utils/functional.py
new file mode 100644
index 0000000000..72610154d8
--- /dev/null
+++ b/tests/regressiontests/utils/functional.py
@@ -0,0 +1,10 @@
+from unittest import TestCase
+
+from django.utils.functional import lazy
+
+
+class FunctionalTestCase(TestCase):
+    def test_lazy(self):
+        t = lazy(lambda: tuple(range(3)), list, tuple)
+        for a, b in zip(t(), range(3)):
+            self.assertEqual(a, b)
diff --git a/tests/regressiontests/utils/tests.py b/tests/regressiontests/utils/tests.py
index 6258b81200..d51fa13fd8 100644
--- a/tests/regressiontests/utils/tests.py
+++ b/tests/regressiontests/utils/tests.py
@@ -12,6 +12,7 @@ import datastructures
 import dateformat
 import itercompat
 from decorators import DecoratorFromMiddlewareTests
+from functional import FunctionalTestCase
 
 # We need this because "datastructures" uses sorted() and the tests are run in
 # the scope of this module.