🛒 Cart Validation Test

Technical Test - Backend PHP Developer

Implement a cart validation service with tax calculation and discount handling.

🚀 Installation

composer install
composer start
# → http://localhost:8080

✅ Verify Setup

curl http://localhost:8080/
# {"app":"Cart Validation Test","status":"running"}

🧪 Run Tests

composer test

📁 Project Structure

src/
├── Domain/           # Pure business logic (no dependencies)
│   ├── Entity/
│   ├── ValueObject/  # Money, Percentage
│   ├── Service/      # CartCalculator
│   └── Exception/
├── Application/      # Use cases and orchestration
│   ├── DTO/
│   ├── Service/      # DiscountService, TaxService
│   └── UseCase/
├── Infrastructure/
└── Presentation/
    └── Controller/

📖 Specifications

See SPECIFICATIONS.md for full details.

💡 Tips

1. Start with Money and Percentage (Value Objects)
2. Write tests first (TDD)
3. All amounts in cents (integers, no floats)
4. Domain layer has zero external dependencies

Good luck! 🍀