/**
* Testing cachestore_file::get with prescan enabled and with
* deleting the cache between the prescan and the call to get.
*
* The deleting of cache simulates some other process purging
* the cache.
*/
public function test_cache_get_with_prescan_and_purge()
{
global $CFG;
$definition = cache_definition::load_adhoc(cache_store::MODE_REQUEST, 'cachestore_file', 'phpunit_test');
$name = 'File test';
$path = make_cache_directory('cachestore_file_test');
$cache = new cachestore_file($name, array('path' => $path, 'prescan' => true));
$cache->initialise($definition);
$cache->set('testing', 'value');
$path = make_cache_directory('cachestore_file_test');
$cache = new cachestore_file($name, array('path' => $path, 'prescan' => true));
$cache->initialise($definition);
// Let's pretend that some other process purged caches.
remove_dir($CFG->cachedir . '/cachestore_file_test', true);
make_cache_directory('cachestore_file_test');
$cache->get('testing');
}
/**
* Generates an instance of the cache store that can be used for testing.
*
* Returns an instance of the cache store, or false if one cannot be created.
*
* @param cache_definition $definition
* @return cachestore_file
*/
public static function initialise_test_instance(cache_definition $definition)
{
$name = 'File test';
$path = make_cache_directory('cachestore_file_test');
$cache = new cachestore_file($name, array('path' => $path));
$cache->initialise($definition);
return $cache;
}
