diff options
Diffstat (limited to 'tests/migrations/test_operations.py')
| -rw-r--r-- | tests/migrations/test_operations.py | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/tests/migrations/test_operations.py b/tests/migrations/test_operations.py index d4fc3e855a..01197d5fc8 100644 --- a/tests/migrations/test_operations.py +++ b/tests/migrations/test_operations.py @@ -2306,6 +2306,52 @@ class OperationTests(OperationTestBase): operation.database_forwards(app_label, editor, new_state, project_state) self.assertColumnExists(rider_table, "pony_id") + def test_alter_field_foreignobject_noop(self): + app_label = "test_alflfo_noop" + project_state = self.set_up_test_model(app_label) + project_state = self.apply_operations( + app_label, + project_state, + [ + migrations.CreateModel( + "Rider", + fields=[ + ("pony_id", models.IntegerField()), + ( + "pony", + models.ForeignObject( + f"{app_label}.Pony", + models.CASCADE, + from_fields=("pony_id",), + to_fields=("id",), + ), + ), + ], + ), + ], + ) + operation = migrations.AlterField( + "Rider", + "pony", + models.ForeignObject( + f"{app_label}.Pony", + models.CASCADE, + from_fields=("pony_id",), + to_fields=("id",), + null=True, + ), + ) + new_state = project_state.clone() + operation.state_forwards(app_label, new_state) + with ( + CaptureQueriesContext(connection) as ctx, + connection.schema_editor() as editor, + ): + operation.database_forwards(app_label, editor, project_state, new_state) + self.assertIs( + any("ALTER" in query["sql"] for query in ctx.captured_queries), False + ) + @skipUnlessDBFeature("supports_comments") def test_alter_model_table_comment(self): app_label = "test_almotaco" |