Test-Driven Developer (TDD) is way simpler than a lot of people want to make it sound. You basically follow these steps:

1. Write a Test: Write a test for the next bit of functionality you want to add.
2. Run the Test and See It Fail: This confirms that the test is detecting the absence of the desired functionality.
3. Write the Minimal Code to Pass the Test: Implement just enough code to make the test pass.
4. Refactor: Improve the code while keeping the tests passing.
5. Repeat: Continue with the next functionality.

This cycle is often referred to as Red-Green-Refactor:

• Red: Write a failing test.
• Green: Write code to pass the test.
• Refactor: Improve the code.