Testing

What it is

Feature tests exercise HTTP and persistence; unit tests isolate rules.

When to use it

Prove important behavior, including denied access and boundaries.

Syntax

php artisan test

Example

use Illuminate\Foundation\Testing\RefreshDatabase;
class OrderTest extends TestCase
{
    use RefreshDatabase;
    public function test_guest_cannot_create_order(): void
    {
        $this->postJson("/orders", ["total_cents" => 1250])->assertUnauthorized();
    }
}

Common mistakes

Default Laravel feature tests bypass CSRF; explicitly re-enable it for CSRF tests; SQLite cannot prove production lock behavior.

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