diff options
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/migrations/test_commands.py | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/tests/migrations/test_commands.py b/tests/migrations/test_commands.py index c9efa09667..09abd21103 100644 --- a/tests/migrations/test_commands.py +++ b/tests/migrations/test_commands.py @@ -9,7 +9,9 @@ import sys 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 @@ -580,6 +582,19 @@ class MakeMigrationsTests(MigrationTestBase): 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 no apps + out = six.StringIO() + call_command('makemigrations', stdout=out) + self.assertIn('No changes detected', out.getvalue()) + # with an app + with self.temporary_migration_module() as migration_dir: + call_command('makemigrations', 'migrations', verbosity=0) + init_file = os.path.join(migration_dir, '__init__.py') + self.assertTrue(os.path.exists(init_file)) + def test_failing_migration(self): # If a migration fails to serialize, it shouldn't generate an empty file. #21280 apps.register_model('migrations', UnserializableModel) |