Fixed #36456 -- Improved content type negotiation in technical 500 error response.

1 files changed, 16 insertions, 0 deletions

diff --git a/tests/view_tests/tests/test_debug.py b/tests/view_tests/tests/test_debug.py
index a5a1d85e83..f5cb82cd2d 100644
--- a/tests/view_tests/tests/test_debug.py
+++ b/tests/view_tests/tests/test_debug.py
@@ -261,6 +261,22 @@ class DebugViewTests(SimpleTestCase):
             status_code=500,
         )
 
+    def test_technical_500_content_type_negotiation(self):
+        for accepts, content_type in [
+            ("text/plain", "text/plain; charset=utf-8"),
+            ("text/html", "text/html"),
+            ("text/html,text/plain;q=0.9", "text/html"),
+            ("text/plain,text/html;q=0.9", "text/plain; charset=utf-8"),
+            ("text/*", "text/html"),
+        ]:
+            with self.subTest(accepts=accepts):
+                with self.assertLogs("django.request", "ERROR"):
+                    response = self.client.get(
+                        "/raises500/", headers={"accept": accepts}
+                    )
+                self.assertEqual(response.status_code, 500)
+                self.assertEqual(response["Content-Type"], content_type)
+
     def test_classbased_technical_500(self):
         with self.assertLogs("django.request", "ERROR"):
             response = self.client.get("/classbased500/")