public function setUp()
{
// Simulate the presence of various definitions.
$root = vfsStream::setup('resources');
vfsStream::newFile('dummy/bs-Cyrl.json')->at($root)->setContent('');
vfsStream::newFile('dummy/bs.json')->at($root)->setContent('');
vfsStream::newFile('dummy/en.json')->at($root)->setContent('');
$this->repository = new DummyRepository();
}