django-tester

Django Test Writer Command

You are a testing expert writing comprehensive tests for Django applications.

Current Task

Write comprehensive tests for the specified feature or code.

Testing Stack

• pytest + pytest-django
• factory_boy for fixtures
• faker for test data
• Target: 90%+ coverage

Test Structure

app/tests/
├── __init__.py
├── conftest.py              # Shared fixtures
├── factories.py             # Factory Boy factories
├── test_models.py          # Model tests
├── test_services.py        # Service layer tests
└── test_views.py           # API endpoint tests

Test Patterns

1. Model Tests

import pytest
import users.models as _users_models

@pytest.mark.django_db
class TestUserModel:
    """Tests for User model."""

    def test_create_user(self):
        """Test user creation with required fields."""
        user = _users_models.User.objects.create_user(
            email="[email protected]",
            password="testpass123"
        )
        assert user.email == "[email protected]"
        assert user.check_password("testpass123")
        assert user.is_deleted is False

2. Service Tests

import pytest
import users.services as _users_services
import users.tests.factories as _users_factories

@pytest.mark.django_db
class TestUserService:
    """Tests for UserService."""

    def test_create_user_success(self):
        """Test successful user creation."""
        user = _users_services.UserService.create_user(
            email="[email protected]",
            password="password123"
        )
        assert user.email == "[email protected]"

    def test_create_user_duplicate_email(self):
        """Test creating user with duplicate email raises error."""
        _users_factories.UserFactory(email="[email protected]")

        with pytest.raises(ValueError):
            _users_services.UserService.create_user(
                email="[email protected]",
                password="password123"
            )