Pest Control

Pest Control

Rule 0 — Hard Stop

Pest is NOT installed in this project and must never be used.

This project uses PHPUnit 12+ exclusively.

Never write, suggest, or accept:

• it('description', fn () => ...)
• test('description', fn () => ...)
• describe('group', fn () => ...)
• uses(SomeClass::class)
• expect($value)->toBe(...)
• beforeEach(fn () => ...)
• afterEach(fn () => ...)
• pest() configuration

Rule 1 — Correct Test Class Pattern

Every test MUST be a class extending one of the three base classes:

// Company panel tests
class FooTest extends AbstractCompanyPanelTestCase
{
    #[Test]
    public function it_does_something(): void
    {
        // ...
    }
}

// Admin panel tests
class BarTest extends AbstractAdminPanelTestCase
{
    #[Test]
    public function it_does_something(): void
    {
        // ...
    }
}

// Pure unit tests (no DB, no framework boot)
class BazTest extends AbstractTestCase
{
    #[Test]
    public function it_does_something(): void
    {
        // ...
    }
}

Base class locations: Modules/Core/Tests/

Rule 2 — Attribute Syntax

Use PHP 8.1+ attributes for test metadata:

use PHPUnit\Framework\Attributes\Test;
use PHPUnit\Framework\Attributes\DataProvider;
use PHPUnit\Framework\Attributes\Group;
use PHPUnit\Framework\Attributes\CoversClass;

#[Test]
public function it_creates_an_invoice(): void {}

#[Test]
#[DataProvider('invoiceDataProvider')]
public function it_validates_invoice_fields(array $data, string $error): void {}

Never use /** @test */ docblock annotations — use #[Test] attributes.

Rule 3 — Assertion Style

Use PHPUnit assertions, not Pest chains:

// Correct
$this->assertSame('expected', $actual);
$this->assertDatabaseHas('invoices', ['status' => 'paid']);
$this->assertCount(3, $results);

// Wrong — Pest chain
expect($actual)->toBe('expected');
expect($results)->toHaveCount(3);

Rule 4 — Livewire Testing

Filament/Livewire tests use the Livewire facade directly:

use Livewire\Livewire;

Livewire::actingAs($this->user)
    ->test(ListInvoices::class, ['tenant' => 'ivplv2'])
    ->assertSuccessful();

Or the base class helper:

$this->testLivewire(ListInvoices::class)->assertSuccessful();

Rule 5 — File Placement

Modules/<Name>/Tests/Unit/    ← AbstractTestCase, no DB
Modules/<Name>/Tests/Feature/ ← AbstractCompanyPanelTestCase or AbstractAdminPanelTestCase

PHPUnit discovers tests via phpunit.xml:

<testsuite name="Unit">   <directory>Modules/*/Tests/Unit</directory>   </testsuite>
<testsuite name="Feature"><directory>Modules/*/Tests/Feature</directory></testsuite>

Rule 6 — Pest Elimination Checklist

When asked to eliminate Pest from a codebase, check and fix all of the following:

composer.json

• Remove "pestphp/pest-plugin": true from config.allow-plugins
• Remove any pestphp/pest* entries from require-dev

Test files

• Convert it('...', fn () => ...) → class method with #[Test] attribute
• Convert test('...', fn () => ...) → class method with #[Test] attribute
• Remove all uses(...) declarations
• Replace expect(...)->toBe(...) chains with $this->assertSame(...)
• Replace beforeEach → setUp(), afterEach → tearDown()
• Remove describe() wrappers; flatten into separate methods or classes

Config / tooling

• Delete pest.php or tests/Pest.php if present
• Remove any --pest flag from CI workflow commands
• Update .gitignore comments: # PHPUnit / Pest → # PHPUnit
• Update Makefile comments that mention Pest

Documentation

• Update CLAUDE.md testing section to state PHPUnit-only
• Update any README or CONTRIBUTING docs that mention Pest

Rule 7 — Conversion Reference