/**
  * @dataProvider getSiteMessageDataProvider
  */
 public function testGetSiteMessage($expected, $isDisabled, $siteMessageMock, $wgSitenameMock)
 {
     $messageMock = $this->getMockBuilder('Message')->disableOriginalConstructor()->setMethods(['inContentLanguage', 'isDisabled', 'text'])->getMock();
     $messageMock->expects($this->once())->method('isDisabled')->willReturn($isDisabled);
     $messageMock->expects($this->any())->method('text')->willReturn($siteMessageMock);
     $messageMock->expects($this->once())->method('inContentLanguage')->willReturn($messageMock);
     $this->mockGlobalVariable('wgSitename', $wgSitenameMock);
     $this->mockGlobalFunction('wfMessage', $messageMock);
     $mercuryApi = new MercuryApi();
     $this->assertEquals($expected, $mercuryApi->getSiteMessage());
 }
 /**
  * @desc Purge the contributors data to guarantee that it will be refreshed next time it is required
  *
  * @param WikiPage $wikiPage
  * @param User $user
  * @param $revision
  * @param $current
  * @return bool
  */
 public static function onArticleRollbackComplete(WikiPage $wikiPage, User $user, $revision, $current)
 {
     $articleId = $wikiPage->getId();
     $key = MercuryApi::getTopContributorsKey($articleId, MercuryApiController::NUMBER_CONTRIBUTORS);
     WikiaDataAccess::cachePurge($key);
     return true;
 }