/**
* Sets up the memcached backend used for testing
*
* @param array $backendOptions Options for the memcache backend
* @return MemcachedBackend
*/
protected function setUpBackend(array $backendOptions = [])
{
$cache = $this->createMock(FrontendInterface::class, [], [], '', false);
if ($backendOptions == []) {
$backendOptions = ['servers' => ['localhost:11211']];
}
$backend = new MemcachedBackend($this->getEnvironmentConfiguration(), $backendOptions);
$backend->setCache($cache);
return $backend;
}