What is TDD?
Test-Driven Development
It is a development method based on first preparing the test of the code to be written and then writing enough code to pass this test.
Overview
TDD is based on the philosophy of 'test first, code second'. First you write a test that defines what the code should do; Naturally this test fails because there is no code yet. Then you write the simplest code that will pass the test. This cycle ensures that the software is error-free at every step.
How it works
Three-stage cycle: 1. Write test (Fail), 2. Write code (Pass test), 3. Clean up code (Refactor). This process repeats constantly.
Where it is used
It is applied in modern software development teams, especially in projects where security and quality are at the forefront.
Commonly confused with
It can be confused with Unit Testing; TDD is a method, and Unit Testing is a tool used by this method.
Frequently asked questions
Doesn't TDD waste time?
Although it may seem like it slows down at first, it saves time overall as it reduces debugging time in the future.
Related terms
Related tools
This explanation was written in plain language for TreScout and machine-translated from the Turkish original · the Turkish version prevails. If something looks wrong or missing, write to hello@trescout.com. Read in Turkish →