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-rw-r--r--docs/topics/testing.txt7
1 files changed, 7 insertions, 0 deletions
diff --git a/docs/topics/testing.txt b/docs/topics/testing.txt
index 7afdbe88cc..117dfbe591 100644
--- a/docs/topics/testing.txt
+++ b/docs/topics/testing.txt
@@ -508,6 +508,13 @@ file, all Django tests run with :setting:`DEBUG`\=False. This is to ensure that
the observed output of your code matches what will be seen in a production
setting.
+Caches are not cleared after each test, and running "manage.py test fooapp" can
+insert data from the tests into the cache of a live system if you run your
+tests in production because, unlike databases, a separate "test cache" is not
+used. This behavior `may change`_ in the future.
+
+.. _may change: https://code.djangoproject.com/ticket/11505
+
Understanding the test output
-----------------------------