Fixed #10743 -- Allowed lookups for related fields in ModelAdmin.list_display.

Co-authored-by: Alex Garcia <me@alexoteiza.com>
Co-authored-by: Natalia <124304+nessita@users.noreply.github.com>
Co-authored-by: Nina Menezes <https://github.com/nmenezes0>

1 files changed, 23 insertions, 0 deletions

diff --git a/tests/admin_checks/tests.py b/tests/admin_checks/tests.py
index d2d1eb219e..6ca5d6d925 100644
--- a/tests/admin_checks/tests.py
+++ b/tests/admin_checks/tests.py
@@ -1009,3 +1009,26 @@ class SystemChecksTestCase(SimpleTestCase):
             self.assertEqual(errors, [])
         finally:
             Book._meta.apps.ready = True
+
+    def test_related_field_list_display(self):
+        class SongAdmin(admin.ModelAdmin):
+            list_display = ["pk", "original_release", "album__title"]
+
+        errors = SongAdmin(Song, AdminSite()).check()
+        self.assertEqual(errors, [])
+
+    def test_related_field_list_display_wrong_field(self):
+        class SongAdmin(admin.ModelAdmin):
+            list_display = ["pk", "original_release", "album__hello"]
+
+        errors = SongAdmin(Song, AdminSite()).check()
+        expected = [
+            checks.Error(
+                "The value of 'list_display[2]' refers to 'album__hello', which is not "
+                "a callable or attribute of 'SongAdmin', or an attribute, method, or "
+                "field on 'admin_checks.Song'.",
+                obj=SongAdmin,
+                id="admin.E108",
+            )
+        ]
+        self.assertEqual(errors, expected)