What are the key principles of Test Driven Development (TDD)?
The key principles of Test Driven Development (TDD) are:
Write a Failing Test First: Start by writing a test that initially fails, defining the feature's expected behavior.
Write Code to Pass the Test: Implement just enough code to make the test pass.
Refactor the Code: After passing, refactor the code to improve structure, without changing functionality.
Repeat the Cycle: Continuously repeat the cycle—Red (fail), Green (pass), Refactor—for each new feature.
Small and Focused Tests: Tests should be simple, focused on specific functionality, and fast to run.
Behavior-Driven Testing: Focus on testing the application's behavior from the user's perspective.
Continuous Feedback: Get immediate feedback to catch issues early and improve code quality.
This cycle promotes clean, maintainable, and well-tested code.
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