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BMAD TDD Demo - Calculator Project

This is a complete working demonstration of the BMAD TDD Methodology Expansion Pack using a simple calculator project.

🎯 Project Overview

Purpose: Demonstrate a complete Red-Green-Refactor TDD cycle using BMAD methodology
Result: ✅ Successfully implemented with 100% test coverage
Rating: 9.5/10 framework integration score

📊 Results Summary

21 test cases covering all acceptance criteria
100% code coverage (exceeds 90% target)
Complete TDD cycle from Red → Green → Refactor
Full documentation of TDD progression in story file
Performance requirements met (< 1ms per operation)

🗂️ Project Structure

├── src/
│   └── calculator.js          # Implementation (post-refactor)
├── tests/
│   └── calculator.test.js     # Comprehensive test suite
├── stories/
│   └── 1.1-calculator-basic-operations.md  # Complete story with TDD progression
├── package.json               # Jest configuration and dependencies
└── TDD_EVALUATION_REPORT.md   # Detailed evaluation findings

🚀 Quick Start

Install dependencies:
```
npm install
```
Run tests:
```
npm test
```
Check coverage:
```
npm run test:coverage
```

📋 Story Progression

The complete TDD cycle is documented in the story file:

✅ Red Phase

21 failing tests written first
Clear Given-When-Then structure
Proper test isolation and mocking strategy
Tests fail for correct reasons (no implementation)

✅ Green Phase

Minimal implementation to make tests pass
All acceptance criteria satisfied
100% test coverage achieved
Performance requirements met

✅ Refactor Phase

Code quality improvements while maintaining green tests
Extracted helper methods and constants
Improved readability and maintainability
Zero functionality changes

🧪 Test Quality

Deterministic: No random values or external dependencies
Isolated: Each test runs independently
Fast: All tests complete in < 200ms total
Readable: Clear test names and Given-When-Then structure
Comprehensive: Edge cases and error conditions covered

📖 Key BMAD TDD Features Demonstrated

Story Template Integration - TDD metadata seamlessly integrated
Agent Workflow - QA agent Red phase, Dev agent Green phase
Quality Gates - Phase-specific validation and progression
Documentation - Complete traceability through story file
Commands - TDD commands integrated with BMAD workflow

🎯 Evaluation Highlights

Integration: 10/10 - Seamless with existing BMAD framework
Documentation: 10/10 - Excellent story progression tracking
TDD Process: 10/10 - Complete Red-Green-Refactor cycle
Code Quality: 9/10 - Clean, maintainable, well-tested code
Framework Value: 9/10 - Significant enhancement to BMAD

📚 Learn More

See TDD_EVALUATION_REPORT.md for detailed evaluation findings
Review stories/1.1-calculator-basic-operations.md for complete TDD progression
Check the expansion pack documentation in ../../expansion-packs/tdd-methodology/

Status: Production Ready ✅
Framework: BMAD-METHOD™ TDD Expansion Pack
Evaluation: Complete with 9.5/10 rating

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