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test-driven-development

Enforce a tests-first workflow with failing tests before production code.

Updated Feb 9, 2026
Search Tags:#tdd#red-green-refactor#quality-assurance#unit-tests#test-driven-development#software-testing
One-click install
npx skills add https://github.com/tridigitals/ispmanagement --skill test-driven-development-tridigitals
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: test-driven-development
Source: https://github.com/tridigitals/ispmanagement/tree/main/.roo/skills/test-driven-development
Command: npx skills add https://github.com/tridigitals/ispmanagement --skill test-driven-development-tridigitals

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Test-driven development enforces a tests-first workflow, ensuring a failing test exists before any production code is written to prevent regressions and guide design.

Core Features & Use Cases

  • Establishes a disciplined workflow that starts with a failing test, then implements minimal code to satisfy it.
  • Encourages incremental refactoring with confidence, faster feedback, and improved maintainability.
  • Use Case: when adding features or fixing bugs, start with a failing test to define expected behavior.

Quick Start

Run the Red-Green-Refactor cycle on a small feature to prove behavior with tests first.

Frequently Asked Questions about test-driven-development

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I start test-driven development for feature development?▼

Test-driven development starts by writing a failing test that defines expected behavior, then implementing minimal production code to pass it. This workflow applies directly to feature development by enforcing tests-first validation and incremental refactoring.

What is the red-green-refactor cycle for unit tests?▼

The red-green-refactor cycle is a test-driven development workflow where you write a failing test, write minimal code to make it pass, then refactor incrementally with confidence. It promotes disciplined test design and reliable software delivery.

Do I need to write a failing test before fixing bugs?▼

Yes, test-driven development requires a failing test to exist before any production code is written. For bug fixes, this means defining the expected behavior with a test first to prevent regressions and guide your software testing.

Does test-driven development work for refactoring existing software?▼

Test-driven development supports refactoring by providing automated validation guardrails that ensure reliable software delivery. You refactor incrementally with confidence because existing unit tests verify behavior and catch regressions immediately during the workflow.

When should I not use a tests-first workflow?▼

A tests-first workflow may not suit exploratory prototyping where behavior is undefined. Test-driven development requires clear expected behavior to write a failing test, making it less effective when minimal production code cannot be validated against upfront specifications.

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