@Test
 public void testIsSAMLAuthentication() {
   // given
   ServiceAccess mockServiceAccess = mock(ServiceAccess.class);
   ConfigurationService mockConfServ = mock(ConfigurationService.class);
   closedMplFilter.serviceAccess = mockServiceAccess;
   doReturn(mockConfServ).when(mockServiceAccess).getService(ConfigurationService.class);
   TenantService tenantMock = mock(TenantService.class);
   doReturn(tenantMock).when(mockServiceAccess).getService(TenantService.class);
   // when
   closedMplFilter.isSAMLAuthentication();
   // then
 }