[2.1.x] Fixed #29627 -- Fixed QueryDict.urlencode() crash with non-string values.

Regression in 7d96f0c49ab750799860e42716d7105e11de44de.
Backport of d8e2be459f97f1773c7edf7d37de180139146176 from master

1 files changed, 7 insertions, 0 deletions

diff --git a/tests/httpwrappers/tests.py b/tests/httpwrappers/tests.py
index 24260ae610..01ce20f93d 100644
--- a/tests/httpwrappers/tests.py
+++ b/tests/httpwrappers/tests.py
@@ -114,6 +114,13 @@ class QueryDictTests(SimpleTestCase):
         self.assertEqual(q.urlencode(), 'next=%2Ft%C3%ABst%26key%2F')
         self.assertEqual(q.urlencode(safe='/'), 'next=/t%C3%ABst%26key/')
 
+    def test_urlencode_int(self):
+        # Normally QueryDict doesn't contain non-string values but lazily
+        # written tests may make that mistake.
+        q = QueryDict(mutable=True)
+        q['a'] = 1
+        self.assertEqual(q.urlencode(), 'a=1')
+
     def test_mutable_copy(self):
         """A copy of a QueryDict is mutable."""
         q = QueryDict().copy()