https://github.com/swapno963/test-driven-development

Implemented Unit Tests, Integration Tests, and Functional Tests
https://github.com/swapno963/test-driven-development

cicd django functional-testing integration-testing test-automation testing testing-tools unit-testing

Last synced: 12 days ago
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Implemented Unit Tests, Integration Tests, and Functional Tests

• Host: GitHub
• URL: https://github.com/swapno963/test-driven-development
• Owner: Swapno963
• Created: 2024-12-12T15:48:11.000Z (15 days ago)
• Default Branch: main
• Last Pushed: 2024-12-12T17:05:28.000Z (15 days ago)
• Last Synced: 2024-12-12T17:20:24.813Z (15 days ago)
• Topics: cicd, django, functional-testing, integration-testing, test-automation, testing, testing-tools, unit-testing
• Language: Python
• Homepage:
• Size: 13.1 MB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: readme.md

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README

        
# Django Testing Guide

This guide outlines essential topics and best practices for testing in Django. It includes foundational concepts, advanced techniques, and tools to help you create robust and maintainable test suites.

## 1. Foundational Concepts

- **Django’s Test Framework**: Learn the built-in tools (`TestCase`, `Client`) for testing.

- **Unit Tests**: Write tests for individual components like models and utility functions.

- **Integration Tests**: Ensure multiple components (e.g., views and models) work together seamlessly.

- **Functional Tests**: Test end-to-end user flows with tools like Selenium or Playwright.

- **Types of Tests**: Understand `setUp`, `tearDown`, `setUpTestData`, and fixtures.

## 2. Model Testing

- Validate models, field constraints, and `validators`.

- Test model methods (e.g., `save()`, `clean()`).

- Ensure database integrity (e.g., foreign keys, cascading deletes).

- Test edge cases (e.g., max/min values for fields).

## 3. Views and API Testing

- **Django Views**: Test function-based views (FBVs) and class-based views (CBVs).

- **Django REST Framework (DRF)**:

  - Test serializers, permissions, and views.

  - Write tests for custom DRF pagination and filtering.

  - Use `APIClient` for endpoint testing.

- **Error and Edge Cases**:

  - Test for 404, 500, and other HTTP status codes.

  - Verify redirects and access permissions.

## 4. Form and Serializer Testing

- Validate form inputs (e.g., `is_valid()` behavior).

- Test custom form logic and `clean()` methods.

- Write tests for DRF serializers with custom validation logic.

## 5. Authentication and Authorization

- Test login/logout functionality.

- Test role-based access control:

  - Ensure only authorized users access specific views.

  - Test Django’s `User` model and permissions.

- Verify middleware behaviors (e.g., `LoginRequiredMiddleware`).

## 6. Database and Query Testing

- Test custom querysets and managers.

- Measure database query performance in tests.

- Use `assertNumQueries` to validate query counts.

## 7. Middleware Testing

- Test custom middleware (e.g., logging, caching, or access control).

- Ensure middleware behaves correctly under different conditions.

## 8. Third-Party Integrations

- Test external API integrations by mocking API calls.

- Write tests for third-party libraries in your project.

## 9. Frontend Testing

- Test templates for correct rendering.

- Validate context data passed to templates.

- Test JavaScript interactions with Django backend using tools like Selenium or Playwright.

## 10. Asynchronous Testing

- Test asynchronous tasks with Celery or Django’s async views.

- Mock background jobs and task queues.

## 11. Advanced Topics

- Mock external services (e.g., APIs, email services, payment gateways).

- Write reusable test utilities for your project.

- Use `TestCase` with fixtures, factories, or `pytest-django`.

- Generate test data dynamically with tools like `Faker` or `Factory Boy`.

## 12. Performance and Scalability

- Perform load testing for high-traffic endpoints.

- Conduct stress testing for database queries.

- Test caching mechanisms for proper functionality.

## 13. Test Coverage and Best Practices

- Measure test coverage using tools like `coverage.py`.

- Write efficient, comprehensive tests.

- Organize test files and reusable utilities.

- Apply mocking and patching when necessary.

## 14. CI/CD Testing

- Set up test pipelines in CI/CD tools (e.g., GitHub Actions, Jenkins).

- Write tests that work well in Dockerized environments.

- Use parallel testing to improve execution speed.

## Tools and Libraries to Explore

- **Pytest**: Provides concise syntax and plugins for Django testing.

- **Factory Boy**: Helps create test data with factories instead of fixtures.

- **Faker**: Generates random, realistic test data.

- **Mock**: Patches objects and mocks behaviors.

- **Selenium**: Enables browser automation for end-to-end testing.

- **Playwright**: A modern alternative to Selenium.

- **pytest-django**: Integrates Pytest with Django for enhanced testing.

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Master these topics to write robust and maintainable tests, ensuring your Django applications are reliable and production-ready.