Updated social testing compatibility

 <?php namespace BookStack\Services;
 
-use GuzzleHttp\Exception\ClientException;
 use Laravel\Socialite\Contracts\Factory as Socialite;
 use BookStack\Exceptions\SocialDriverNotConfigured;
 use BookStack\Exceptions\SocialSignInException;
 use BookStack\Exceptions\UserRegistrationException;
-use BookStack\Http\Controllers\Auth\AuthController;
 use BookStack\Repos\UserRepo;
 use BookStack\SocialAccount;
-use BookStack\User;
 
 class SocialAuthService
 {

@@ -34,5 +34,6 @@
         <env name="GITHUB_APP_SECRET" value="aaaaaaaaaaaaaa"/>
         <env name="GOOGLE_APP_ID" value="aaaaaaaaaaaaaa"/>
         <env name="GOOGLE_APP_SECRET" value="aaaaaaaaaaaaaa"/>
+        <env name="APP_URL" value="http://bookstack.dev"/>
     </php>
 </phpunit>