/**
* Flush cache storage and assert success message.
*
* @return void
*/
protected function flushCacheStorageWithAssert()
{
$this->cachePage->open();
$this->cachePage->getActionsBlock()->flushCacheStorage();
$this->cachePage->getModalBlock()->acceptAlert();
\PHPUnit_Framework_Assert::assertTrue($this->cachePage->getActionsBlock()->isStorageCacheFlushed(), 'Cache is not flushed.');
}
