Fixed #1873 -- Handled multi-valued query parameters in admin changelist filters.

1 files changed, 15 insertions, 0 deletions

diff --git a/tests/admin_utils/tests.py b/tests/admin_utils/tests.py
index 113f5f7024..cbe6b8bb1d 100644
--- a/tests/admin_utils/tests.py
+++ b/tests/admin_utils/tests.py
@@ -7,6 +7,7 @@ from django.contrib import admin
 from django.contrib.admin import helpers
 from django.contrib.admin.utils import (
     NestedObjects,
+    build_q_object_from_lookup_parameters,
     display_for_field,
     display_for_value,
     flatten,
@@ -424,3 +425,17 @@ class UtilsTests(SimpleTestCase):
 
     def test_quote(self):
         self.assertEqual(quote("something\nor\nother"), "something_0Aor_0Aother")
+
+    def test_build_q_object_from_lookup_parameters(self):
+        parameters = {
+            "title__in": [["Article 1", "Article 2"]],
+            "hist__iexact": ["history"],
+            "site__pk": [1, 2],
+        }
+        q_obj = build_q_object_from_lookup_parameters(parameters)
+        self.assertEqual(
+            q_obj,
+            models.Q(title__in=["Article 1", "Article 2"])
+            & models.Q(hist__iexact="history")
+            & (models.Q(site__pk=1) | models.Q(site__pk=2)),
+        )