diff --git a/composer.json b/composer.json
index 8cf7899..7cd1b60 100644
--- a/composer.json
+++ b/composer.json
@@ -17,6 +17,7 @@
       "monolog/monolog": "1.13.*"
     },
     "require-dev": {
+      "mockery/mockery": "dev-master",
       "satooshi/php-coveralls": "dev-master"
     },
     "autoload": {
diff --git a/examples/config.php b/examples/config.php
index aed2340..eedb6bd 100644
--- a/examples/config.php
+++ b/examples/config.php
@@ -9,6 +9,10 @@
         'key' => '',
         'secret' => '',
     ],
+    'weibo' => [
+        'key' => '',
+        'secret' => '',
+    ],
     'hundsun' => [
         'key' => '',
         'secret' => ''
diff --git a/examples/service.php b/examples/service.php
index cca4e9b..cd28317 100644
--- a/examples/service.php
+++ b/examples/service.php
@@ -17,3 +17,5 @@
     'callback' => dirname('http://' . $_SERVER['SERVER_NAME'] . $_SERVER["REQUEST_URI"]) . '/access.php?provider=' . $provider
 ]);
 
+$service->debug();
+$service->setLogPath(__DIR__ . '/../tmp/access.log');
diff --git a/src/EvaOAuth/OAuth2/Providers/Weibo.php b/src/EvaOAuth/OAuth2/Providers/Weibo.php
new file mode 100644
index 0000000..7c0c059
--- /dev/null
+++ b/src/EvaOAuth/OAuth2/Providers/Weibo.php
@@ -0,0 +1,32 @@
+<?php
+/**
+ * @author    AlloVince
+ * @copyright Copyright (c) 2015 EvaEngine Team (https://github.com/EvaEngine)
+ * @license   http://framework.zend.com/license/new-bsd New BSD License
+ */
+
+namespace Eva\EvaOAuth\OAuth2\Providers;
+
+use Eva\EvaOAuth\OAuth2\ResourceServerInterface;
+
+/**
+ * Class Weibo
+ * @package Eva\EvaOAuth\OAuth2\Providers
+ */
+class Weibo extends AbstractProvider
+{
+    /**
+     * @var string
+     */
+    protected $authorizeUrl = 'https://api.weibo.com/oauth2/authorize';
+
+    /**
+     * @var string
+     */
+    protected $accessTokenUrl = 'https://api.weibo.com/oauth2/access_token';
+
+    /**
+     * @var string
+     */
+    protected $accessTokenFormat = ResourceServerInterface::FORMAT_JSON;
+}
diff --git a/src/EvaOAuth/Service.php b/src/EvaOAuth/Service.php
index 90f0293..78ae822 100644
--- a/src/EvaOAuth/Service.php
+++ b/src/EvaOAuth/Service.php
@@ -61,6 +61,7 @@ class Service
         'twitter' => 'Eva\EvaOAuth\OAuth1\Providers\Twitter',
         'douban' => 'Eva\EvaOAuth\OAuth2\Providers\Douban',
         'tencent' => 'Eva\EvaOAuth\OAuth2\Providers\Tencent',
+        'weibo' => 'Eva\EvaOAuth\OAuth2\Providers\Weibo',
         'hundsun' => 'Eva\EvaOAuth\OAuth2\Providers\Hundsun',
     ];
 
@@ -83,6 +84,22 @@ public static function registerProviders(array $classes)
         }
     }
 
+    /**
+     * @return array
+     */
+    public static function getProviders()
+    {
+        return self::$providers;
+    }
+
+    /**
+     * @return OAuth1Provider|OAuth2Provider
+     */
+    public function getProvider()
+    {
+        return $this->provider;
+    }
+
     /**
      * @return Consumer|Client
      */
@@ -144,6 +161,18 @@ public function setLogPath($logPath)
         return $this;
     }
 
+    /**
+     * Enable debug mode
+     * Guzzle will print all request and response on screen
+     * @return $this
+     */
+    public function debug()
+    {
+        $adapter = $this->getAdapter();
+        $adapter::getHttpClient()->getEmitter()->attach(new LogSubscriber(og, Formatter::DEBUG));
+        return $this;
+    }
+
     /**
      * @param string $providerName
      * @param array $options
diff --git a/tests/EvaOAuthTest/ServiceTest.php b/tests/EvaOAuthTest/ServiceTest.php
new file mode 100644
index 0000000..47b1fd5
--- /dev/null
+++ b/tests/EvaOAuthTest/ServiceTest.php
@@ -0,0 +1,73 @@
+<?php
+
+namespace Eva\EvaOAuthTest;
+
+use Eva\EvaOAuth\Service;
+use Eva\EvaOAuth\OAuth1\Consumer;
+use Eva\EvaOAuth\OAuth2\Client;
+
+class ServiceTest extends \PHPUnit_Framework_TestCase
+{
+
+    public function setUp()
+    {
+    }
+
+    /**
+     * @expectedException Eva\EvaOAuth\Exception\BadMethodCallException
+     */
+    public function testNotExistProvider()
+    {
+        new Service('foo_service', []);
+    }
+
+    public function testConstruct()
+    {
+        $service = new Service('douban', [
+            'key' => 'test_key',
+            'secret' => 'test_secret',
+            'callback' => 'test_callback',
+        ]);
+        $this->assertInstanceOf('Eva\EvaOAuth\OAuth2\Client', $service->getAdapter());
+
+        $service = new Service('twitter', [
+            'key' => 'test_key',
+            'secret' => 'test_secret',
+            'callback' => 'test_callback',
+        ]);
+        $this->assertInstanceOf('Eva\EvaOAuth\OAuth1\Consumer', $service->getAdapter());
+    }
+
+    /**
+     * @expectedException Eva\EvaOAuth\Exception\InvalidArgumentException
+     */
+    public function testProviderInterface()
+    {
+        \Mockery::namedMock('FooProvider');
+        Service::registerProvider('foo', 'FooProvider');
+        $service = new Service('foo', [
+            'key' => 'test_key',
+            'secret' => 'test_secret',
+            'callback' => 'test_callback',
+        ]);
+    }
+
+    public function testRegisterProvider()
+    {
+        \Mockery::namedMock('FooOAuth2Provider', 'Eva\EvaOAuth\OAuth2\Providers\AbstractProvider');
+        \Mockery::namedMock('BarOAuth1Provider', 'Eva\EvaOAuth\OAuth1\Providers\AbstractProvider');
+        Service::registerProviders([
+            'foo' => 'FooOAuth2Provider',
+            'bar' => 'BarOAuth2Provider',
+        ]);
+        $this->assertArrayHasKey('foo', Service::getProviders());
+        $this->assertArrayHasKey('bar', Service::getProviders());
+
+        $service = new Service('foo', [
+            'key' => 'test_key',
+            'secret' => 'test_secret',
+            'callback' => 'test_callback',
+        ]);
+        $this->assertInstanceOf('FooOAuth2Provider', $service->getProvider());
+    }
+}