django-tdd

Use DRF's APIClient with pytest fixtures to test endpoints. Create an authenticated client via force_authenticate, then assert on status codes and response data for list, retrieve, create, update, and delete actions.

Define DjangoModelFactory subclasses with Faker and fuzzy attributes for each model. Use SubFactory for relations, post_generation hooks for many-to-many fields, and create_batch to generate multiple objects in one call.

Use --reuse-db and --nomigrations flags, an in-memory SQLite database, MD5 password hashing, and disabled migrations in test settings. These changes significantly reduce database setup time per run.

Use unittest.mock.patch targeting the module path where the service is imported, such as apps.payments.services.stripe. Configure return values or side effects to simulate success and failure without real network calls.

Override EMAIL_BACKEND with the locmem backend using override_settings, then inspect django.core.mail.outbox. Assert on recipient lists, subjects, and message counts after triggering the email logic.

A common target is 80% overall, with 90% for models and services, 85% for serializers, and 80% for views. Generate reports with pytest --cov and review term-missing output to find untested lines.