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BestPractices

A collection of 67 issues

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 Performance Testing: Building Fast Applications

Introduction Performance testing is essential for building high-quality applications. This article explores how to incorporate performance testing into your TDD workflow. Response Time Testing // performance.test.js describe('API Performance', () => { test('should respond within 100ms', async () => { const start = performance.now(); await request(app).get(

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('