refactoring and adding more dependency injection through ioc container.

laravel/cache/apc.php

@@ -2,8 +2,70 @@
 
 use Laravel\Config;
 
+/**
+ * Wrap the APC functions in a class that can be injected into driver.
+ * Since the APC functions are global, the driver is untestable without
+ * injecting a wrapper around them.
+ */
+class APC_Engine {
+
+	/**
+	 * Get an item from the APC cache.
+	 *
+	 * @param  string  $key
+	 * @return mixed
+	 */
+	public function get($key)
+	{
+		return apc_fetch($key);
+	}
+
+	/**
+	 * Store an item in the APC cache.
+	 *
+	 * @param  string  $key
+	 * @param  mixed   $value
+	 * @param  int     $minutes
+	 * @return void
+	 */
+	public function put($key, $value, $seconds)
+	{
+		apc_store($key, $value, $seconds);
+	}
+
+	/**
+	 * Delete an item from the APC cache.
+	 *
+	 * @param  string  $key
+	 * @return void
+	 */
+	public function forget($key)
+	{
+		apc_delete($key);
+	}
+
+}
+
 class APC extends Driver {
 
+	/**
+	 * The APC Engine instance.
+	 *
+	 * @var APC_Engine
+	 */
+	private $apc;
+
+	/**
+	 * Create a new APC cache driver instance.
+	 *
+	 * @param  APC_Engine  $apc
+	 * @return void
+	 */
+	public function __construct(APC_Engine $apc)
+	{
+		$this->apc = $apc;
+	}
+
 	/**
 	 * Determine if an item exists in the cache.
 	 *
@@ -28,7 +90,7 @@ class APC extends Driver {
 	 */
 	protected function retrieve($key)
 	{
-		return ( ! is_null($cache = apc_fetch(Config::get('cache.key').$key))) ? $cache : null;
+		return ( ! is_null($cache = $this->apc->get(Config::get('cache.key').$key))) ? $cache : null;
 	}
 
 	/**
@@ -46,7 +108,7 @@ class APC extends Driver {
 	 */
 	public function put($key, $value, $minutes)
 	{
-		apc_store(Config::get('cache.key').$key, $value, $minutes * 60);
+		$this->apc->put(Config::get('cache.key').$key, $value, $minutes * 60);
 	}
 
 	/**
@@ -57,7 +119,7 @@ class APC extends Driver {
 	 */
 	public function forget($key)
 	{
-		apc_delete(Config::get('cache.key').$key);
+		$this->apc->forget(Config::get('cache.key').$key);
 	}
 
 }