Testing

Testing is a software development methodology focused on verifying that code functions correctly, meets requirements, and is free of defects. It involves creating and executing test cases to validate functionality, performance, security, and usability. This process helps ensure software quality, reliability, and maintainability throughout the development lifecycle.

Also known as: Software Testing, QA Testing, Test-Driven Development, TDD, Quality Assurance

Why learn Testing?

Developers should learn and use testing to catch bugs early, reduce development costs, and improve code quality, especially in agile or continuous integration environments. It is critical for applications where reliability is paramount, such as in finance, healthcare, or safety-critical systems, and for maintaining large codebases over time.

Learning Resources

• tutorial: Software Testing Fundamentals
• book: Test-Driven Development with Python
• course: Introduction to Software Testing on Coursera
• tutorial: JUnit 5 Tutorial
• video: Software Testing Concepts - YouTube Playlist