public function initializeInitializesBackendWithBackendOptions()
{
$mockBackend = $this->createMock(Generic\Backend\BackendInterface::class);
$mockBackend->expects($this->once())->method('initialize')->with(['Foo' => 'Bar']);
$manager = new Generic\PersistenceManager();
$manager->injectBackend($mockBackend);
$manager->injectSettings(['persistence' => ['backendOptions' => ['Foo' => 'Bar']]]);
$manager->initialize();
}