Reading list: What is TDD and what tools are commonly used for it?
What is TDD (Test-Driven Development) is a software development approach where tests are written before writing the actual code. In this method, developers first create a test that defines a desired function or behavior, then write the minimum code required to pass that test, and finally refine the code while keeping all tests successful. This cycle helps ensure that the code works as expected from the beginning and reduces the chances of bugs later in development. What is TDD is often used to build clean, reliable, and maintainable software.

When understanding what is TDD, it is also important to know the tools commonly used for it. For unit testing, popular tools include JUnit and TestNG for Java, JUnit and pytest for Python, JUnit and NUnit for .NET, and Jest, Mocha, and Jasmine for JavaScript. For test automation and integration, developers often use tools like Selenium, Cypress, and Playwright. To manage builds and continuous testing, tools such as Maven, Gradle, Jenkins, and GitHub Actions are widely used. These tools support the TDD process by running tests automatically and ensuring code quality at every stage.

Overall, what is TDD can be summed up as a practical way to write better code by testing first and coding second. With the right tools, TDD helps teams catch issues early, maintain stable codebases, and deliver higher-quality software consistently.
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