Alex Banul

Why you must use TDD now!

Stop finding bugs in production. TDD's 'test-first' approach forces you to write cleaner, more robust code from the start.

Why you must use TDD now!
#1about 3 minutes

The problem with traditional development cycles

Traditional development, where tests are written after implementation, often leads to bugs slipping through QA and into production.

#2about 3 minutes

Understanding the Red-Green-Refactor TDD cycle

TDD inverts the traditional process by first writing a failing test (Red), then writing just enough code to make it pass (Green), and finally cleaning up the code (Refactor).

#3about 8 minutes

Demo: Writing the first failing test for a health endpoint

The demo begins by creating a test for a server health endpoint, which fails because the endpoint and server configuration do not exist yet.

#4about 9 minutes

Demo: Implementing an addition feature using TDD

A calculator's 'add' endpoint is built by writing a failing test, implementing minimal code to pass, and then refactoring the test with multiple cases to ensure correct logic.

#5about 5 minutes

Evaluating the pros and cons of adopting TDD

TDD leads to more testable solutions and cleaner architecture but requires discipline and team buy-in to overcome the initial temptation to write implementation code first.

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