Ticket #26930: 26930-test.diff

tests/migrations/test_commands.py

@@ -9 +9 @@
 
 from django.apps import apps
 from django.core.management import CommandError, call_command
-from django.db import DatabaseError, connection, connections, models
+from django.db import (
+    ConnectionHandler, DatabaseError, connection, connections, models,
+)
 from django.db.migrations.exceptions import InconsistentMigrationHistory
 from django.db.migrations.recorder import MigrationRecorder
 from django.test import ignore_warnings, mock, override_settings
@@ -580 +582 @@
             call_command('makemigrations', 'migrations', '--empty', '-n', 'a', '-v', '0')
             self.assertTrue(os.path.exists(os.path.join(migration_dir, '0002_a.py')))
 
+    def test_makemigrations_empty_connections(self):
+        empty_connections = ConnectionHandler({
+            'default': {},
+        })
+        with mock.patch('django.core.management.commands.makemigrations.connections', new=empty_connections):
+            with self.temporary_migration_module() as migration_dir:
+                call_command('makemigrations', verbosity=0)
+
     def test_failing_migration(self):
         # If a migration fails to serialize, it shouldn't generate an empty file. #21280
         apps.register_model('migrations', UnserializableModel)