Наследование: implements Neos\Flow\Security\Authentication\AuthenticationManagerInterface
 /**
  * @test
  * @expectedException \Neos\Flow\Security\Exception\InvalidAuthenticationProviderException
  */
 public function anExceptionIsThrownIfTheConfiguredProviderDoesNotExist()
 {
     $providerConfiguration = ['NotExistingProvider' => ['providerClass' => 'NotExistingProviderClass']];
     $mockProviderResolver = $this->getMockBuilder(AuthenticationProviderResolver::class)->disableOriginalConstructor()->getMock();
     $mockRequestPatternResolver = $this->getMockBuilder(RequestPatternResolver::class)->disableOriginalConstructor()->getMock();
     $this->authenticationProviderManager = $this->getAccessibleMock(AuthenticationProviderManager::class, ['authenticate'], [$mockProviderResolver, $mockRequestPatternResolver]);
     $this->authenticationProviderManager->_call('buildProvidersAndTokensFromConfiguration', $providerConfiguration);
 }