public function testUsingFacetManager()
 {
     $facetManagerMock = $this->getMockForAbstractClass('\\AboutYou\\SDK\\Model\\FacetManager\\FacetManagerInterface');
     $facetManagerMock->expects($this->atLeastOnce())->method('getFacet');
     FacetGroupSet::setFacetManager($facetManagerMock);
     $facetGroupSet = new FacetGroupSet(array(0 => array(123)));
     $facetGroup = $facetGroupSet->getGroups();
 }