Prefix bug

[Katalam]

Basically what happend here pestphp/pest#966 was that the plugin created directories with the path Core/lication/Contracts instead of Core/Application/Contracts with the given code

test('app')
    ->expect('App\Core\Application\Contracts')
    ->toBeClasses();

And passed because no File was found

[Katalam]

@devajmeireles The test problem does not sound like a problem on my side, can you have a look at it?

[wimulkeman]

@nunomaduro Can I contribute with something to help getting this PR merged?

Is it primarily hanging on the test with the incorrect working before the fix applied in the PR?