Testing Your Reporting System with Laravel Factories and Assertions
Last updated on by Harris Raftopoulos
▶️ Watch the video tutorial (20 minutes)
Testing Your Reporting System - Laravel In Practice EP4
You've built a powerful reporting system with custom collections, query scopes, and service layers. But how do you ensure it all works correctly? How do you catch bugs before production? How do you confidently refactor without breaking existing functionality?
In this episode of Laravel In Practice, I show you how to comprehensively test the entire reporting system we've built. You'll learn to create expressive factory states that make tests readable, write unit tests for collection methods without touching the database, and feature test your query scopes to ensure they filter correctly.
The result? A fully tested system that gives you confidence to ship features quickly. Your tests become documentation that clearly shows how your code should behave. You'll catch N+1 queries before they hit production, verify business calculations are accurate, and ensure your service layer correctly orchestrates everything.
This builds directly on Episodes 1-3, where we created custom collection methods, query scopes, and a reporting service. Now you'll see how to test each layer properly - from isolated unit tests for your OrderCollection methods to integration tests that verify your SalesReportService generates accurate reports across different time periods.
Whether you're testing business logic, database queries, or complete workflows, this approach ensures your Eloquent code is bulletproof. Factory states make your test setup expressive, database assertions catch performance problems early, and service tests verify your entire system works together correctly.
The testing strategies we implement here ensure the reporting system is production-ready and maintainable.
