[1.11.x] Fixed #27820 -- Fixed RequestDataTooBig/TooManyFieldsSent crash.

Backport of 2f10216f84b55920de25422842a66260219e393f from master

1 files changed, 27 insertions, 0 deletions

diff --git a/tests/handlers/test_exception.py b/tests/handlers/test_exception.py
new file mode 100644
index 0000000000..7afd4acc6b
--- /dev/null
+++ b/tests/handlers/test_exception.py
@@ -0,0 +1,27 @@
+from django.core.handlers.wsgi import WSGIHandler
+from django.test import SimpleTestCase, override_settings
+from django.test.client import FakePayload
+
+
+class ExceptionHandlerTests(SimpleTestCase):
+
+    def get_suspicious_environ(self):
+        payload = FakePayload('a=1&a=2;a=3\r\n')
+        return {
+            'REQUEST_METHOD': 'POST',
+            'CONTENT_TYPE': 'application/x-www-form-urlencoded',
+            'CONTENT_LENGTH': len(payload),
+            'wsgi.input': payload,
+            'SERVER_NAME': 'test',
+            'SERVER_PORT': '8000',
+        }
+
+    @override_settings(DATA_UPLOAD_MAX_MEMORY_SIZE=12)
+    def test_data_upload_max_memory_size_exceeded(self):
+        response = WSGIHandler()(self.get_suspicious_environ(), lambda *a, **k: None)
+        self.assertEqual(response.status_code, 400)
+
+    @override_settings(DATA_UPLOAD_MAX_NUMBER_FIELDS=2)
+    def test_data_upload_max_number_fields_exceeded(self):
+        response = WSGIHandler()(self.get_suspicious_environ(), lambda *a, **k: None)
+        self.assertEqual(response.status_code, 400)