testing-laravel

# Testing Laravel Use PHPUnit with Laravel's testing helpers. Every test file starts with `declare(strict_types=1)`. ## Test Classification - **Feature tests** (`tests/Feature/`): HTTP requests through the full stack — routes, controllers, middleware, validation, database. Use `$this->getJson()`, `$this->postJson()`, etc. - **Unit tests** (`tests/Unit/`): Isolated logic — services, actions, value objects, helpers. No HTTP, minimal database. Default to feature tests for anything touching routes, controllers, or models. Use unit tests for pure logic and action classes. ## Critical Rules - `use RefreshDatabase` trait in every test class that touches the database - Model factories for all test data — use factories instead of raw `DB::table()` inserts - One behavior per test method. Name with `test_` prefix: `test_user_can_update_own_profile` - Assert both response status AND side effects (DB state, dispatched jobs, sent notifications) - `actingAs($user)` for auth — use this instead of manually setting sessions or tokens - `postJson()` / `getJson()` for API endpoints — sets proper Accept headers and returns JSON assertions - Fake facades BEFORE the action: `Queue::fake()` then act then `Queue::assertPushed(...)` - `assertDatabaseHas` / `assertDatabaseMissing` to verify persistence — use these instead of re-querying - Resolve action classes from the container with `resolve()` so DI works; use `swap()` to inject mocks - **Tests expose bugs, not the reverse**: If a test uncover...