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Test-driven development (TDD) is a software development approach where you write tests for your code before you actually write the code itself. This helps ensure that your code works correctly from the very beginning. Here’s how it works in simple steps:
Let’s say you’re building a simple calculator that can add two numbers.
1,Write a Test: First, you write a test to check if the
add
function works.This test checks if adding 2 and 3 gives you 5. Since you haven’t written the
add
function yet, this test will fail.2.Write the Code: Now, you write the
add
function to pass the test.3.Run the Test: Run the test to see if it passes.
4.Repeat: Next, you could write a test for another function, like subtraction, and go through the same steps.
This cycle helps ensure your code works correctly and makes it easier to find and fix bugs early in the development process.
Test-driven development (TDD) benefits include better code quality, clear documentation, confident refactoring, faster debugging, modular development, improved design, stakeholder confidence, team collaboration, predictability, regression prevention, easier onboarding, and long-term cost savings.
I’m glad you found it useful! If you have any more questions or need further clarification on any topic, feel free to ask.