public function testGetMountsForDuplicateByGroup()
 {
     $id1 = $this->addMount('/test', 'foo', 'bar', 100, DBConfigService::MOUNT_TYPE_ADMIN);
     $this->dbConfig->addApplicable($id1, DBConfigService::APPLICABLE_TYPE_GROUP, 'group1');
     $this->dbConfig->addApplicable($id1, DBConfigService::APPLICABLE_TYPE_GROUP, 'group2');
     $mounts = $this->dbConfig->getAdminMountsForMultiple(DBConfigService::APPLICABLE_TYPE_GROUP, ['group1', 'group2']);
     $this->assertCount(1, $mounts);
     $this->assertEquals($id1, $mounts[0]['mount_id']);
 }