Fixed #29224 -- Fixed removing index_together indexes if exists unique_together constraint on the same fields.

1 files changed, 13 insertions, 1 deletions

diff --git a/tests/migrations/test_base.py b/tests/migrations/test_base.py
index c4c8b1ee6c..28a57f552d 100644
--- a/tests/migrations/test_base.py
+++ b/tests/migrations/test_base.py
@@ -62,7 +62,11 @@ class MigrationTestBase(TransactionTestCase):
                 any(
                     c["index"]
                     for c in connections[using].introspection.get_constraints(cursor, table).values()
-                    if c['columns'] == list(columns) and (index_type is None or c['type'] == index_type)
+                    if (
+                        c['columns'] == list(columns) and
+                        (index_type is None or c['type'] == index_type) and
+                        not c['unique']
+                    )
                 ),
             )
 
@@ -80,6 +84,14 @@ class MigrationTestBase(TransactionTestCase):
     def assertConstraintNotExists(self, table, name):
         return self.assertConstraintExists(table, name, False)
 
+    def assertUniqueConstraintExists(self, table, columns, value=True, using='default'):
+        with connections[using].cursor() as cursor:
+            constraints = connections[using].introspection.get_constraints(cursor, table).values()
+            self.assertEqual(
+                value,
+                any(c['unique'] for c in constraints if c['columns'] == list(columns)),
+            )
+
     def assertFKExists(self, table, columns, to, value=True, using='default'):
         with connections[using].cursor() as cursor:
             self.assertEqual(