PreventsSavingStacheItemsToDisk doesn't work in Pest

[edalzell]

Bug description

I can't figure out how, in an addon, to use Pest and the PreventsSavingStacheItemsToDisk trait. Every which way I try I get an error:

And the path is wonky too: /Users/erin/Development/events/vendor/pestphp/pest/src/Factories/tests/__fixtures__/dev-null

How to reproduce

Try to use the PreventsSavingStacheItemsToDisk in your add-on's Pest tests

Logs

Environment

It's an addon, there are no support details. However this was on the latest (5.41) version of Statamic and Laravel 11.

Installation

Fresh statamic/statamic site via CLI

Additional details

No response

[ryanmitchell]

I have this working in some add-ons. You just need to specify $fakeStacheDirectory and make sure the directory exists in setup.

abstract class TestCase extends AddonTestCase
{
    use PreventsSavingStacheItemsToDisk;

    protected $fakeStacheDirectory = __DIR__.'/__fixtures__/dev-null';

    protected string $addonServiceProvider = ServiceProvider::class;

    protected $shouldFakeVersion = true;

    protected function setUp(): void
    {
        parent::setUp();

        if (! file_exists($this->fakeStacheDirectory)) {
            mkdir($this->fakeStacheDirectory, 0777, true);
        }
    }
}

[duncanmcclean]

You can either push an empty directory (like we do in Core) or adjust your TestCase to handle it, like @ryanmitchell suggested.