Merge pull request #114 from szicsu/apc_improvement

APC cache improvement

src/Handlebars/Cache/APC.php

@@ -20,7 +20,7 @@ namespace Handlebars\Cache;
 use Handlebars\Cache;
 
 /**
- * A dummy array cache
+ * A APC cache
  *
  * @category  Xamin
  * @package   Handlebars
@@ -34,6 +34,21 @@ use Handlebars\Cache;
 class APC implements Cache
 {
 
+    /**
+     * @var string
+     */
+    private $_prefix;
+
+    /**
+     * Construct the APC cache.
+     *
+     * @param string|null $prefix optional key prefix, defaults to null
+     */
+    public function __construct( $prefix = null )
+    {
+        $this->_prefix = (string)$prefix;
+    }
+
     /**
      * Get cache for $name if exist.
      *
@@ -43,10 +58,11 @@ class APC implements Cache
      */
     public function get($name)
     {
-        if (apc_exists($name)) {
-            return apc_fetch($name);
-        }
-        return false;
+        $success = null;
+        $result = apc_fetch($this->_getKey($name), $success);
+
+        return $success ? $result : false;
+
     }
 
     /**
@@ -59,7 +75,7 @@ class APC implements Cache
      */
     public function set($name, $value)
     {
-        apc_store($name, $value);
+        apc_store($this->_getKey($name), $value);
     }
 
     /**
@@ -71,7 +87,19 @@ class APC implements Cache
      */
     public function remove($name)
     {
-        apc_delete($name);
+        apc_delete($this->_getKey($name));
+    }
+
+    /**
+     * Gets the full cache key for a given cache item's
+     *
+     * @param string $name Name of the cache item
+     *
+     * @return string full cache key of cached item
+     */
+    private function _getKey($name)
+    {
+        return $this->_prefix . ':' . $name;
     }
 
 }

tests/Xamin/Cache/APCTest.php

@@ -0,0 +1,100 @@
+<?php
+/**
+ * This file is part of Handlebars-php
+ * Base on mustache-php https://github.com/bobthecow/mustache.php
+ *
+ * PHP version 5.3
+ *
+ * @category  Xamin
+ * @package   Handlebars
+ * @author    fzerorubigd <fzerorubigd@gmail.com>
+ * @author    Dmitriy Simushev <simushevds@gmail.com>
+ * @copyright 2013 (c) f0ruD A
+ * @license   MIT <http://opensource.org/licenses/MIT>
+ * @version   GIT: $Id$
+ * @link      http://xamin.ir
+ */
+
+/**
+ * Test of APC cache driver
+ *
+ * Run without sikp:
+ * php -d apc.enable_cli=1  ./vendor/bin/phpunit
+ *
+ * @category   Xamin
+ * @package    Handlebars
+ * @subpackage Test
+ * @author     Tamás Szijártó <szijarto.tamas.developer@gmail.com>
+ * @license    MIT <http://opensource.org/licenses/MIT>
+ * @version    Release: @package_version@
+ * @link       http://xamin.ir
+ */
+class APCTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * {@inheritdoc}
+     *
+     * @return void
+     */
+    public function setUp()
+    {
+        if ( ! extension_loaded('apc') || false === @apc_cache_info()) {
+            $this->markTestSkipped('The ' . __CLASS__ .' requires the use of APC');
+        }
+    }
+
+    /**
+     * Return the new driver
+     *
+     * @param null|string $prefix optional key prefix, defaults to null
+     *
+     * @return \Handlebars\Cache\APC
+     */
+    private function _getCacheDriver( $prefix = null )
+    {
+        return new \Handlebars\Cache\APC($prefix);
+    }
+
+    /**
+     * Test with cache prefix
+     *
+     * @return void
+     */
+    public function testWithPrefix()
+    {
+        $prefix = __CLASS__;
+        $driver = $this->_getCacheDriver($prefix);
+
+        $this->assertEquals(false, $driver->get('foo'));
+
+        $driver->set('foo', 10);
+        $this->assertEquals(10, $driver->get('foo'));
+
+        $driver->set('foo', array(12));
+        $this->assertEquals(array(12), $driver->get('foo'));
+
+        $driver->remove('foo');
+        $this->assertEquals(false, $driver->get('foo'));
+    }
+
+    /**
+     * Test without cache prefix
+     *
+     * @return void
+     */
+    public function testWithoutPrefix()
+    {
+        $driver = $this->_getCacheDriver();
+
+        $this->assertEquals(false, $driver->get('foo'));
+
+        $driver->set('foo', 20);
+        $this->assertEquals(20, $driver->get('foo'));
+
+        $driver->set('foo', array(22));
+        $this->assertEquals(array(22), $driver->get('foo'));
+
+        $driver->remove('foo');
+        $this->assertEquals(false, $driver->get('foo'));
+    }
+}