testbench: Unable to fully swap base path on Laravel 5

Hello, I’m trying to run my tests, that are creating a folder. I use the following to define the wanted path:

$this->testModulePath = __DIR__ . "/../Modules/{$this->testModuleName}";

When I dump this using dd I get : "/Users/nicolaswidart/Sites/Asguard/IndividualModules/Workshop/Tests/../Modules/TestingTestModule", which is correct.

Though when calling an artisan command that is suppose to generate it, it makes it under vendor/orchestra/testbench/fixtures/Modules/TestingTestModule

This is my getEnvironmentSetUp method:

protected function getEnvironmentSetUp($app)
{
    $app['path.base'] = __DIR__ . '/..';
}

Did I miss something ?

Thanks!