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test-driven-development

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Test-driven development (TDD) is a software development process relying on software requirements being converted to test cases before software is fully developed, and tracking all software development by repeatedly testing the software against all test cases. This is as opposed to software being developed first and test cases created later. Programmers also apply the concept to improving and debugging legacy code developed with older techniques.

Process

  1. Add a test
  2. Run all tests. The new test should fail for expected reasons
  3. Write the simplest code that passes the new test
  4. All tests should now pass
  5. Refactor as needed, using tests after each refactor to ensure that functionality is preserved
  6. Repeat.

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    quii / learn-go-with-tests

    Sponsor
    Star 24k

    Learn Go with test-driven development

    testing go golang tdd test-driven-development
    • Updated Oct 26, 2026
    • Go

    mockito / mockito

    Star 15.4k

    Most popular Mocking framework for unit tests written in Java

    java testing mock test-automation mocking mockito testing-tools mock-library java-library test-driven-development mocks mocking-framework
    • Updated Nov 5, 2026
    • Java
    sinon

    sinonjs / sinon

    Sponsor
    Star 9.8k

    Test spies, stubs and mocks for JavaScript.

    javascript unit-testing tdd stub sinon test-driven-development stubs test-spies
    • Updated Nov 12, 2026
    • JavaScript

    onsi / ginkgo

    Sponsor
    Star 9.1k

    A Modern Testing Framework for Go

    testing go golang test bdd test-driven-development bdd-framework
    • Updated Nov 2, 2026
    • Go

    cweill / gotests

    Star 5.3k

    Automatically generate Go test boilerplate from your source code.

    testing go golang commandline code-generator testing-tools test-driven-development golang-tools test-generation golang-application golang-testing go-test table-driven-test go-testing table-driven-testing testing-golang gotests
    • Updated Oct 30, 2025
    • Go

    Behat / Behat

    Star 4k

    BDD in PHP

    php bdd behat documentation-tool gherkin cucumber behavior-driven-development test-driven-development
    • Updated Nov 10, 2026
    • PHP

    nunit / nunit

    Star 2.6k

    NUnit Framework

    testing c-sharp tdd dotnet nunit test-framework test-driven-development nunit-framework hacktoberfest
    • Updated Nov 12, 2026
    • C#
    flaskr-tdd

    mjhea0 / flaskr-tdd

    Sponsor
    Star 2.3k

    Flaskr: Intro to Flask, Test-Driven Development (TDD), and JavaScript

    javascript python flask tdd test-driven-development
    • Updated Apr 13, 2026
    • Python

    jsdecena / laracom

    Sponsor
    Star 2k

    Laravel FREE E-Commerce Software

    open-source ecommerce laravel opensource shopping-cart tdd shop storefront free shopping e-commerce shopping-cart-solution test-driven-development admin-lte hacktoberfest shopping-list laravel-ecommerce
    • Updated Nov 3, 2026
    • PHP
    cpputest

    cpputest / cpputest

    Star 1.5k

    CppUTest unit testing and mocking framework for C/C++

    c-plus-plus unit-testing test-driven-development cpputest very-kewl memory-leak mocking-framework
    • Updated Nov 3, 2026
    • C++

    open-source-labs / Spearmint

    Star 1.3k

    Testing, simplified. || An inclusive, accessibility-first GUI for generating clean, semantic Javascript tests in only a few clicks of a button.

    electron react testing open-source hooks security vue enzyme jest accessibility testing-tools test-driven-development web-accessibility darkmode puppeteer endpoint-testing axe-core
    • Updated Jul 23, 2026
    • TypeScript
    autoprompt-skill

    Spielewoy / autoprompt-skill

    Star 1.2k

    Autoprompt is a coding-agent skill that cuts failures by 45% on agentic coding tasks.

    cli opencode developer-tools code-review test-driven-development automated-testing codex multi-agent-systems workflow-automation autonomous-agents ai-agents github-copilot prompt-engineering agentic-workflows ai-coding agent-orchestration agent-skills claude-code coding-agent subagents
    • Updated Oct 4, 2026
    • JavaScript

    JuliusBrussee / cavekit

    Sponsor
    Star 1.2k

    Frozen — compressed spec-driven development plugin for Claude Code. Still works; active development moved to JuliusBrussee/caveman.

    skills test-driven-development claude-code parallel-agents spec-driven-development
    • Updated Aug 14, 2026

    jamesshore / quixote

    Star 834

    CSS unit and integration testing

    css unit-testing tdd integration-testing test-driven-development css-unit
    • Updated Dec 7, 2022
    • JavaScript

    dwyl / javascript-todo-list-tutorial

    Star 806

    ✅ A step-by-step complete beginner example/tutorial for building a Todo List App (TodoMVC) from scratch in JavaScript following Test Driven Development (TDD) best practice. 🌱

    javascript tutorial tdd vanilla elm-architecture best-practices first-principles todomvc learn todolist how-to test-driven-development beginner beginners-guide step-by-step
    • Updated Nov 1, 2026
    • JavaScript

    CleanCut / green

    Sponsor
    Star 805

    Green is a clean, colorful, fast python test runner.

    python testing test-runner test-automation unittest green test-driven-development
    • Updated Nov 12, 2024
    • Python

    eddyerburgh / avoriaz

    Star 749

    🔬 a Vue.js testing utility library

    testing vuejs vue vuejs2 tests testing-tools test-driven-development vue-testing vue-testing-tools vuesjs2-testing vue-test-utils vue-testing-utilities vue-test-utilities vue-test avoriaz vue-testing-framework
    • Updated Dec 7, 2022
    • JavaScript

    gabrielfalcao / sure

    Sponsor
    Star 698

    sophisticated automated test library and runner

    tdd test bdd test-automation python3 behavior-driven-development test-driven-development software-craftsmanship
    • Updated Mar 1, 2025
    • Python

    bash-unit / bash_unit

    Star 636

    bash unit testing enterprise edition framework for professionals

    testing bash unit-testing tdd xunit assertions test-framework unittest test-driven-development
    • Updated Feb 11, 2026
    • Shell
    utPLSQL

    utPLSQL / utPLSQL

    Star 624

    Testing Framework for PL/SQL

    testing unit-testing oracle test-automation plsql testing-tools oracle-db test-driven-development code-coverage utplsql database-testing oracle-database pl-sql
    • Updated Nov 11, 2026
    • PLSQL

    Created by Kent Beck, D.D. McCracken

    Released 1957

    Followers
    75 followers
    Website
    github.com/topics/tdd
    Wikipedia
    Wikipedia

    Related topics

    atdd bdd continuous-testing extreme-programming testing
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