diff --git a/.travis.yml b/.travis.yml
index 56baa16..9ce8006 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,20 +5,20 @@ php:
   - 5.5
   - 5.6
   - hhvm
-services:
-  - memcached
+
 before_script:
-  - "sudo apt-get install php5-memcached"
-  - "phpenv config-add travis.php.ini"
   - composer self-update
   - composer install
   - chmod -R 777 tests/storage
+
 script:
   - mkdir -p build/logs
   - chmod -R 777 build/logs
   - phpunit
+
 after_script:
   - php vendor/bin/coveralls -v
+
 notifications:
   emails:
     - yuuki.takezawa@comnect.jp.net
diff --git a/README.md b/README.md
index 35e3aae..38e03e7 100644
--- a/README.md
+++ b/README.md
@@ -94,6 +94,36 @@ $ php artisan ytake:smarty-optimize
 | --extension (-e) | specified smarty file extension(default: *.tpl*) |
 | --force | compiles template files found in views directory  |
 
+Template Caching
+==================
+**choose file, memcached, Redis**  
+(default file cache driver)  
+
+テンプレートキャッシュドライバにファイルキャッシュ、memcached, Redisが選択できます  
+デフォルトは通常のファイルキャッシュになっています  
+```php
+// smarty cache driver "file", "memcached", "redis"
+'cache_driver' => 'file',
+
+// memcached servers
+'memcached' => [
+    [
+        'host' => '127.0.0.1',
+        'port' => 11211,
+        'weight' => 100
+    ],
+],
+
+// redis configure
+'redis' => [
+    [
+        'host' => '127.0.0.1',
+        'port' => 6379,
+        'database' => 0,
+    ],
+],
+```
+
 Usage
 ==================
 
@@ -102,7 +132,7 @@ app/config配下のapp.phpのproviders配列に以下のnamespaceを追加して
 add providers
 ```php
 'providers' => [
-'Ytake\LaravelSmarty\SmartyServiceProvider'
+    'Ytake\LaravelSmarty\SmartyServiceProvider'
 ]
 ```
 
diff --git a/composer.json b/composer.json
index cf3a209..37d45d8 100644
--- a/composer.json
+++ b/composer.json
@@ -18,17 +18,17 @@
         "smarty/smarty": "3.*@stable"
     },
     "require-dev": {
-	    "predis/predis": "0.*",
+        "predis/predis": "0.*",
         "symfony/framework-bundle": "2.*",
         "symfony/console": "2.*",
         "phpunit/phpunit": "4.*",
         "mockery/mockery": "0.*",
         "satooshi/php-coveralls": "dev-master"
     },
-	"suggest": {
-		"ext-memcached": "memcached Template Cache Driver",
-		"predis/predis": "Redis Template Cache Driver"
-	},
+    "suggest": {
+        "ext-memcached": "memcached Template Cache Driver",
+        "predis/predis": "Redis Template Cache Driver"
+    },
     "autoload": {
         "psr-4": {
             "Ytake\\LaravelSmarty\\": "src/Smarty"
diff --git a/src/Smarty/Cache/Memcached.php b/src/Smarty/Cache/Memcached.php
index c8527cc..9d0af02 100644
--- a/src/Smarty/Cache/Memcached.php
+++ b/src/Smarty/Cache/Memcached.php
@@ -27,12 +27,12 @@ public function __construct(MemcachedExtendion $memcached, array $servers)
      * @param array $servers
      * @return \Memcached
      */
-    public function connection(MemcachedExtendion $memcached, array $servers)
+    protected function connection(MemcachedExtendion $memcached, array $servers)
     {
         foreach ($servers as $server) {
-	        $memcached->addServer($server['host'], $server['port'], $server['weight']);
+            $memcached->addServer($server['host'], $server['port'], $server['weight']);
         }
-	    return $memcached;
+        return $memcached;
     }
 
 
diff --git a/src/Smarty/Cache/Redis.php b/src/Smarty/Cache/Redis.php
index a39c23d..9cd1841 100644
--- a/src/Smarty/Cache/Redis.php
+++ b/src/Smarty/Cache/Redis.php
@@ -12,19 +12,19 @@
 class Redis extends \Smarty_CacheResource_KeyValueStore
 {
 
-	/** @var Client  */
+    /** @var Client  */
     protected $redis;
 
-	/**
-	 * @param array $servers
-	 */
+    /**
+     * @param array $servers
+     */
     public function __construct(array $servers)
     {
-	    if(count($servers) === 1) {
-		    $this->redis = new Client($servers[0]);
-	    } else {
-		    $this->redis = new Client($servers);
-	    }
+        if(count($servers) === 1) {
+            $this->redis = new Client($servers[0]);
+        } else {
+            $this->redis = new Client($servers);
+        }
     }
 
     /**
@@ -42,9 +42,9 @@ protected function read(array $keys)
             $lookup[$_k] = $k;
         }
         $_res = [];
-	    foreach($_keys as $key) {
-		    $_res[$lookup[$key]] = $this->redis->get($key);
-	    }
+        foreach($_keys as $key) {
+            $_res[$lookup[$key]] = $this->redis->get($key);
+        }
         return $_res;
     }
 
@@ -58,7 +58,7 @@ protected function write(array $keys, $expire = null)
     {
         foreach ($keys as $k => $v) {
             $k = sha1($k);
-	        $this->redis->setex($k, $expire, $v);
+            $this->redis->setex($k, $expire, $v);
         }
         return true;
     }
diff --git a/src/Smarty/Cache/Storage.php b/src/Smarty/Cache/Storage.php
index 97307b4..7482334 100644
--- a/src/Smarty/Cache/Storage.php
+++ b/src/Smarty/Cache/Storage.php
@@ -35,30 +35,30 @@ public function __construct(Smarty $smarty, Repository $repository)
      */
     protected function cacheStorageManaged()
     {
-	    $driver = $this->repository->get('laravel-smarty::cache_driver', 'file');
-	    if($driver !== 'file') {
-		    $storage = $driver . "Storage";
-		    $this->smarty->registerCacheResource($driver, $this->$storage());
-	    }
-	    $this->smarty->caching_type = $driver;
+        $driver = $this->repository->get('laravel-smarty::cache_driver', 'file');
+        if($driver !== 'file') {
+            $storage = $driver . "Storage";
+            $this->smarty->registerCacheResource($driver, $this->$storage());
+        }
+        $this->smarty->caching_type = $driver;
     }
 
-	/**
-	 * @return Redis
-	 */
-	protected function redisStorage()
+    /**
+     * @return Redis
+     */
+    protected function redisStorage()
     {
-	    return new Redis($this->repository->get('laravel-smarty::redis'));
+        return new Redis($this->repository->get('laravel-smarty::redis'));
     }
 
-	/**
-	 * @return Memcached
-	 */
-	protected function memcachedStorage()
+    /**
+     * @return Memcached
+     */
+    protected function memcachedStorage()
     {
         return new Memcached(
-	        new \Memcached(),
-	        $this->repository->get('laravel-smarty::memcached')
+            new \Memcached(),
+            $this->repository->get('laravel-smarty::memcached')
         );
     }
 }
diff --git a/src/Smarty/Console/CacheClearCommand.php b/src/Smarty/Console/CacheClearCommand.php
index f8691a2..e52f9a3 100644
--- a/src/Smarty/Console/CacheClearCommand.php
+++ b/src/Smarty/Console/CacheClearCommand.php
@@ -25,24 +25,24 @@ public function __construct(Smarty $smarty)
         $this->smarty = $smarty;
     }
 
-	/**
-	 * The console command name.
-	 * @var string
-	 */
-	protected $name = 'ytake:smarty-clear-cache';
+    /**
+     * The console command name.
+     * @var string
+     */
+    protected $name = 'ytake:smarty-clear-cache';
 
-	/**
-	 * The console command description.
-	 * @var string
-	 */
-	protected $description = 'Flush the smarty cache';
+    /**
+     * The console command description.
+     * @var string
+     */
+    protected $description = 'Flush the smarty cache';
 
-	/**
-	 * Execute the console command.
-	 * @return void
-	 */
-	public function fire()
-	{
+    /**
+     * Execute the console command.
+     * @return void
+     */
+    public function fire()
+    {
         // clear all cache
         if(is_null($this->option('file'))) {
             $this->smarty->clearAllCache($this->option('time'));
@@ -56,7 +56,7 @@ public function fire()
         }
         $this->info('specified file was cache cleared!');
         return;
-	}
+    }
 
     /**
      * Get the console command options.
diff --git a/src/Smarty/Console/CompiledClearCommand.php b/src/Smarty/Console/CompiledClearCommand.php
index 5bdc739..1998060 100644
--- a/src/Smarty/Console/CompiledClearCommand.php
+++ b/src/Smarty/Console/CompiledClearCommand.php
@@ -26,30 +26,30 @@ public function __construct(Smarty $smarty)
         $this->smarty = $smarty;
     }
 
-	/**
-	 * The console command name.
-	 * @var string
-	 */
-	protected $name = 'ytake:smarty-clear-compiled';
+    /**
+     * The console command name.
+     * @var string
+     */
+    protected $name = 'ytake:smarty-clear-compiled';
 
-	/**
-	 * The console command description.
-	 * @var string
-	 */
-	protected $description = 'Remove the compiled smarty file';
+    /**
+     * The console command description.
+     * @var string
+     */
+    protected $description = 'Remove the compiled smarty file';
 
-	/**
-	 * Execute the console command.
-	 * @return void
-	 */
-	public function fire()
-	{
+    /**
+     * Execute the console command.
+     * @return void
+     */
+    public function fire()
+    {
         if($this->smarty->clearCompiledTemplate($this->option('file'), $this->option('compile_id'))) {
             $this->info('done.');
             return;
         }
         return;
-	}
+    }
 
     /**
      * Get the console command options.
diff --git a/src/Smarty/Console/CompiledCommand.php b/src/Smarty/Console/CompiledCommand.php
index f7f318a..c27181e 100644
--- a/src/Smarty/Console/CompiledCommand.php
+++ b/src/Smarty/Console/CompiledCommand.php
@@ -32,24 +32,24 @@ public function __construct(Smarty $smarty, Repository $config)
         $this->config = $config;
     }
 
-	/**
-	 * The console command name.
-	 * @var string
-	 */
-	protected $name = 'ytake:smarty-optimize';
+    /**
+     * The console command name.
+     * @var string
+     */
+    protected $name = 'ytake:smarty-optimize';
 
-	/**
-	 * The console command description.
-	 * @var string
-	 */
-	protected $description = 'compiles all known templates';
+    /**
+     * The console command description.
+     * @var string
+     */
+    protected $description = 'compiles all known templates';
 
-	/**
-	 * Execute the console command.
-	 * @return void
-	 */
-	public function fire()
-	{
+    /**
+     * Execute the console command.
+     * @return void
+     */
+    public function fire()
+    {
         $configureFileExtension = $this->config->get('laravel-smarty::extension', 'tpl');
         $fileExtension = (is_null($this->option('extension'))) ? $configureFileExtension : $this->option('extension');
         ob_start();
@@ -59,7 +59,7 @@ public function fire()
         $this->info("{$compileFiles} template files recompiled");
         $this->comment(str_replace("<br>", "\n", trim($contents)));
         return;
-	}
+    }
 
     /**
      * Get the console command options.
diff --git a/src/Smarty/Console/PackageInfoCommand.php b/src/Smarty/Console/PackageInfoCommand.php
index 701cb32..bf0e090 100644
--- a/src/Smarty/Console/PackageInfoCommand.php
+++ b/src/Smarty/Console/PackageInfoCommand.php
@@ -14,26 +14,26 @@
 class PackageInfoCommand extends Command
 {
 
-	/**
-	 * The console command name.
-	 * @var string
-	 */
-	protected $name = 'ytake:smarty-package-info';
+    /**
+     * The console command name.
+     * @var string
+     */
+    protected $name = 'ytake:smarty-package-info';
 
-	/**
-	 * The console command description.
-	 * @var string
-	 */
-	protected $description = 'information about ytake/laravel-smarty';
+    /**
+     * The console command description.
+     * @var string
+     */
+    protected $description = 'information about ytake/laravel-smarty';
 
-	/**
-	 * Execute the console command.
-	 * @return void
-	 */
-	public function fire()
-	{
-		$this->line('<info>Smarty</info> version <comment>' . Smarty::SMARTY_VERSION . '</comment>');
-		$this->line('<info>ytake/laravel-smarty</info> version <comment>' . SmartyManager::VERSION . '</comment>');
-	}
+    /**
+     * Execute the console command.
+     * @return void
+     */
+    public function fire()
+    {
+        $this->line('<info>Smarty</info> version <comment>' . Smarty::SMARTY_VERSION . '</comment>');
+        $this->line('<info>ytake/laravel-smarty</info> version <comment>' . SmartyManager::VERSION . '</comment>');
+    }
 
 }
diff --git a/src/Smarty/SmartyServiceProvider.php b/src/Smarty/SmartyServiceProvider.php
index 70f8b18..0dc9646 100644
--- a/src/Smarty/SmartyServiceProvider.php
+++ b/src/Smarty/SmartyServiceProvider.php
@@ -26,8 +26,8 @@ class SmartyServiceProvider extends ServiceProvider
     public function boot()
     {
         $this->package('ytake/laravel-smarty');
-	    //
-	    $this->registerCacheStorage();
+        // register template cache driver
+        $this->registerCacheStorage();
         // register commands
         $this->registerCommands();
     }
@@ -114,9 +114,9 @@ function () {
         );
     }
 
-	/**
-	 * @return Storage
-	 */
+    /**
+     * @return Storage
+     */
     protected function registerCacheStorage()
     {
         return new Storage($this->app['view']->getSmarty(), $this->app['config']);
diff --git a/src/config/config.php b/src/config/config.php
index e482390..ea499eb 100644
--- a/src/config/config.php
+++ b/src/config/config.php
@@ -30,19 +30,19 @@
     // path info
     'template_path' => base_path() . '/app/views',
 
-	'cache_path' => base_path() . '/app/storage/smarty/cache',
+    'cache_path' => base_path() . '/app/storage/smarty/cache',
 
-	'compile_path' => base_path() . '/app/storage/smarty/compile',
+    'compile_path' => base_path() . '/app/storage/smarty/compile',
 
-	'plugins_paths' => [
+    'plugins_paths' => [
         base_path() . '/app/views/smarty/plugins',
     ],
 
-	'config_paths' => [
+    'config_paths' => [
         base_path() . '/app/config/smarty',
     ],
 
-	// production false
+    // production false
     'force_compile' => true,
 
     // smarty cache driver "file", "memcached", "redis"
diff --git a/tests/Cache/StorageTest.php b/tests/Cache/StorageTest.php
index aad539f..32e0e0e 100644
--- a/tests/Cache/StorageTest.php
+++ b/tests/Cache/StorageTest.php
@@ -1,5 +1,5 @@
 <?php
-
+use Mockery as m;
 class StorageTest extends \PHPUnit_Framework_TestCase
 {
 	/** @var  \Ytake\LaravelSmarty\Cache\Storage */
@@ -19,6 +19,11 @@ public function setUp()
 		);
 	}
 
+	public function tearDown()
+	{
+		m::close();
+	}
+
 	public function testInstance()
 	{
 		$this->assertInstanceOf("Ytake\LaravelSmarty\Cache\Storage", $this->storage);
@@ -32,8 +37,11 @@ public function testRedisDriver()
 
 	public function testMemcachedDriver()
 	{
-		$reflection = $this->getProtectMethod($this->storage, 'memcachedStorage');
-		$this->assertInstanceOf("Ytake\LaravelSmarty\Cache\Memcached", $reflection->invoke($this->storage));
+		$storageMock = m::mock($this->storage);
+		$storageMock->makePartial()->shouldAllowMockingProtectedMethods();
+		$storageMock->shouldReceive("memcachedStorage")->andReturn("Ytake\LaravelSmarty\Cache\Memcached");
+		$reflection = $this->getProtectMethod($storageMock, 'memcachedStorage');
+		$this->assertEquals("Ytake\LaravelSmarty\Cache\Memcached", $reflection->invoke($storageMock));
 	}
 
 	/**
diff --git a/tests/config/config.php b/tests/config/config.php
index e4b0c22..9d346c3 100644
--- a/tests/config/config.php
+++ b/tests/config/config.php
@@ -1,47 +1,47 @@
 <?php
 
 return [
-	// smarty file extension
-	'extension' => 'tpl',
-	//
-	'debugging' => false,
-	// use cache
-	'caching' => false,
-	//
-	'cache_lifetime' => 120,
-	//
-	'compile_check' => false,
-	// delimiters
-	// default "{$smarty}"
-	'left_delimiter' => '{',
-	'right_delimiter' => '}',
-	// path info
-	'template_path' => PATH . '/views',
-	'cache_path' => PATH . '/storage/smarty/cache',
-	'compile_path' => PATH . '/storage/smarty/compile',
-	'plugins_paths' => [
+    // smarty file extension
+    'extension' => 'tpl',
+    //
+    'debugging' => false,
+    // use cache
+    'caching' => false,
+    //
+    'cache_lifetime' => 120,
+    //
+    'compile_check' => false,
+    // delimiters
+    // default "{$smarty}"
+    'left_delimiter' => '{',
+    'right_delimiter' => '}',
+    // path info
+    'template_path' => PATH . '/views',
+    'cache_path' => PATH . '/storage/smarty/cache',
+    'compile_path' => PATH . '/storage/smarty/compile',
+    'plugins_paths' => [
         PATH . '/views/plugins',
-	],
+    ],
     'force_compile' => true,
 
-	// smarty cache driver "file", "memcached", "redis"
-	'cache_driver' => 'file',
+    // smarty cache driver "file", "memcached", "redis"
+    'cache_driver' => 'file',
 
-	// memcached servers
-	'memcached' => [
-		[
-			'host' => '127.0.0.1',
-			'port' => 11211,
-			'weight' => 100
-		],
-	],
+    // memcached servers
+    'memcached' => [
+        [
+            'host' => '127.0.0.1',
+            'port' => 11211,
+            'weight' => 100
+        ],
+    ],
 
-	// redis configure
-	'redis' => [
-		[
-			'host' => '127.0.0.1',
-			'port' => 6379,
-			'database' => 0,
-		],
-	],
+    // redis configure
+    'redis' => [
+        [
+            'host' => '127.0.0.1',
+            'port' => 6379,
+            'database' => 0,
+        ],
+    ],
 ];
diff --git a/travis.php.ini b/travis.php.ini
deleted file mode 100644
index 11a613a..0000000
--- a/travis.php.ini
+++ /dev/null
@@ -1 +0,0 @@
-extension=memcached.so
\ No newline at end of file