/**
  * @test
  */
 public function removeAttributeFromObjectStorageHoldingAttributes()
 {
     $attribute = new \Aijko\SharepointConnector\Domain\Model\Mapping\Attribute();
     $localObjectStorage = new \TYPO3\CMS\Extbase\Persistence\ObjectStorage();
     $localObjectStorage->attach($attribute);
     $localObjectStorage->detach($attribute);
     $this->fixture->addAttribute($attribute);
     $this->fixture->removeAttribute($attribute);
     $this->assertEquals($localObjectStorage, $this->fixture->getAttributes());
 }