/**
  * @test
  */
 public function removeSubgroupRemovesSubgroup()
 {
     $group1 = new \TYPO3\CMS\Extbase\Domain\Model\FrontendUserGroup('foo');
     $group2 = new \TYPO3\CMS\Extbase\Domain\Model\FrontendUserGroup('bar');
     $this->subject->addSubgroup($group1);
     $this->subject->addSubgroup($group2);
     $this->assertEquals(count($this->subject->getSubgroup()), 2);
     $this->subject->removeSubgroup($group1);
     $this->assertEquals(count($this->subject->getSubgroup()), 1);
     $this->subject->removeSubgroup($group2);
     $this->assertEquals(count($this->subject->getSubgroup()), 0);
 }