AI.TDD Articles

Sign in Subscribe

Topic

AI

A collection of 119 issues

TDD in JavaScript: Modern Testing Practices

Introduction JavaScript's dynamic nature and ecosystem present unique challenges and opportunities for Test-Driven Development. This article explores modern TDD practices in JavaScript. Setting Up a TDD Environment // package.json { "scripts": { "test": "jest --watch", "test:coverage": "jest --coverage" }, "

The Red-Green-Refactor Cycle: A Deep Dive

Introduction The Red-Green-Refactor cycle is the heartbeat of Test-Driven Development. This article explores each phase in detail and provides practical examples of how to implement this fundamental TDD practice. The Three Phases Red: Write a Failing Test In this phase, we write a test that defines the behavior we want

TDD and Clean Architecture: A Perfect Match

Introduction Test-Driven Development and Clean Architecture complement each other perfectly. This article explores how to combine these practices to create maintainable and testable software. Clean Architecture Principles Clean Architecture provides a way to structure applications with clear boundaries and dependencies: * Independence of frameworks * Testability * Independence of UI * Independence of database

TDD by Example: Learning from Kent Beck

Introduction Kent Beck's "Test-Driven Development: By Example" is a seminal work that introduced many developers to TDD. This article explores key concepts and practical examples from the book. Money Example: A Classic TDD Case Study One of the most famous examples from the book is the

TDD and Design Patterns: Building Better Software

Introduction Design patterns and Test-Driven Development work together to create robust and maintainable software. This article explores how TDD helps us implement and verify design patterns effectively. Factory Pattern TDD helps us create flexible object creation through the Factory pattern: // Factory interface class PaymentProcessorFactory { createProcessor(type) { switch (type) { case '

TDD and SOLID Principles: A Perfect Match

Introduction Test-Driven Development and SOLID principles complement each other perfectly. This article explores how TDD naturally leads to SOLID code and how SOLID principles make code more testable. Single Responsibility Principle (SRP) TDD encourages SRP by making us think about behavior in small, focused units: // Bad: Multiple responsibilities class UserManager

TDD in Python: Writing Clean and Testable Code

Introduction Python's simplicity and readability make it an excellent language for Test-Driven Development. This article explores TDD practices in Python using pytest and other modern testing tools. Setting Up a TDD Environment # requirements.txt pytest==7.0.0 pytest-cov==4.0.0 pytest-mock==3.10.0 # pytest.ini

TDD and Security Testing: Building Secure Applications

Introduction Security testing is a crucial aspect of Test-Driven Development. This article explores how to incorporate security testing into your TDD workflow to build more secure applications. Input Validation Testing // userValidation.test.js describe('User Input Validation', () => { test('should reject SQL injection attempts', () => { const

TDD in Frontend Development: Testing React Components

Introduction Test-Driven Development in frontend development, particularly with React, requires a different approach than backend testing. This article explores how to effectively test React components and frontend logic. Component Testing // Button.test.jsx import { render, screen, fireEvent } from '@testing-library/react'; import Button from './Button'; describe('