Pros and cons of test-driven development

Test-Driven Development (TDD) is a software development approach that emphasizes writing tests before writing the actual code. This technique encourages developers to think through their design and requirements upfront, leading to better-designed, more reliable, and easier-to-maintain software from the very start.

Core principles of TDD

TDD is built around a simple cycle often described as “Red-Green-Refactor,” as shown in the following list:

1. Red: Write a test for the next bit of functionality you want to add. The test assertions should fail because the functionality doesn’t exist yet and the implementation throws a NotImplementedException. This step ensures that your tests are meaningful and that they truly verify the intended functionality.
2. Green: Write the minimum amount of code necessary to make the test pass. This encourages simplicity and focuses only on functionality that is needed.
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