replace Exception on InitializationException

cache/Cacher.php

@@ -27,7 +27,7 @@ class Cacher
             }
             $cache = new $cacher($config);
             if (!$cache instanceof Cache) {
-                throw new Exception('Cache driver "' . $cacher . '" must extends Cache');
+                throw new InitializationException('Cache driver "' . $cacher . '" must extends Cache');
             }
             self::$caches[$cacher] = $cache;
         }

cache/MemcacheCache.php

@@ -40,7 +40,7 @@ class MemcacheCache extends Cache
         foreach ($config as $c) {
             foreach ($required as $option) {
                 if (!isset($c[$option])) {
-                    throw new Exception('Configuration must have a "' . $option . '".');
+                    throw new InitializationException('Configuration must have a "' . $option . '".');
                 }
             }
             $this->connection->addServer($c['hostname'], $c['port']);

tests/cache/CacherTest.php

@@ -15,6 +15,7 @@ require_once dirname(__FILE__) . '/../../cache/Cache.php';
 require_once dirname(__FILE__) . '/../../cache/Cacher.php';
 require_once dirname(__FILE__) . '/../../Registry.php';
 require_once dirname(__FILE__) . '/../../Config.php';
+require_once dirname(__FILE__) . '/../../exception/InitializationException.php';
 
 class CacherTest extends PHPUnit_Framework_TestCase
 {
@@ -27,7 +28,7 @@ class CacherTest extends PHPUnit_Framework_TestCase
     }
 
     /**
-     * @expectedException Exception
+     * @expectedException InitializationException
      * @expectedExcepptionMessage Cache driver
      */
     public function testNotExtendsCache()

tests/cache/MemcacheCacheTest.php

@@ -15,6 +15,7 @@
 
 require_once dirname(__FILE__) . '/../../cache/Cache.php';
 require_once dirname(__FILE__) . '/../../cache/MemcacheCache.php';
+require_once dirname(__FILE__) . '/../../exception/InitializationException.php';
 
 class MemcacheCacheTest extends PHPUnit_Framework_TestCase
 {
@@ -36,7 +37,7 @@ class MemcacheCacheTest extends PHPUnit_Framework_TestCase
     }
 
     /**
-     * @expectedException Exception
+     * @expectedException InitializationException
      * @expectedExceptionMessage Configuration must have a
      * @TODO: MemcacheCache::__construct - empty config array passes with no host params
      */