[1.8.x] Fixed #24624 -- Replaced obsoleted rel.opts in admindocs view

Thanks Scott Sanders for the report, and Markus Holtermann and
Tim Graham for the reviews. Refs #24381.
Backport of 4e7ed8d0d from master.

1 files changed, 14 insertions, 0 deletions

diff --git a/tests/admin_docs/tests.py b/tests/admin_docs/tests.py
index 08e1578c9c..fe668e2119 100644
--- a/tests/admin_docs/tests.py
+++ b/tests/admin_docs/tests.py
@@ -280,6 +280,20 @@ class TestModelDetailView(AdminDocsTestCase):
             "all related %s objects" % (link % ("admin_docs.group", "admin_docs.Group"))
         )
 
+    def test_model_with_many_to_one(self):
+        link = '<a class="reference external" href="/admindocs/models/%s/">%s</a>'
+        response = self.client.get(
+            reverse('django-admindocs-models-detail', args=['admin_docs', 'company'])
+        )
+        self.assertContains(
+            response,
+            "number of related %s objects" % (link % ("admin_docs.person", "admin_docs.Person"))
+        )
+        self.assertContains(
+            response,
+            "all related %s objects" % (link % ("admin_docs.person", "admin_docs.Person"))
+        )
+
     def test_model_with_no_backward_relations_render_only_relevant_fields(self):
         """
         A model with ``related_name`` of `+` should not show backward relationship