diff --git a/src/Client/ClientRegistry.php b/src/Client/ClientRegistry.php
index 6ee3f785..28682243 100644
--- a/src/Client/ClientRegistry.php
+++ b/src/Client/ClientRegistry.php
@@ -14,10 +14,18 @@
 
 class ClientRegistry
 {
+    /** @var ContainerInterface */
     private $container;
 
+    /** @var array */
     private $serviceMap;
 
+    /**
+     * ClientRegistry constructor.
+     *
+     * @param ContainerInterface $container
+     * @param array $serviceMap
+     */
     public function __construct(ContainerInterface $container, array $serviceMap)
     {
         $this->container = $container;
diff --git a/src/Client/OAuth2Client.php b/src/Client/OAuth2Client.php
index 477226d6..fd7982b7 100644
--- a/src/Client/OAuth2Client.php
+++ b/src/Client/OAuth2Client.php
@@ -20,14 +20,23 @@
 
 class OAuth2Client
 {
+    const OAUTH2_SESSION_STATE_KEY = 'knpu.oauth2_client_state';
+
+    /** @var AbstractProvider */
     private $provider;
 
+    /** @var RequestStack */
     private $requestStack;
 
+    /** @var bool */
     private $isStateless = false;
 
-    const OAUTH2_SESSION_STATE_KEY = 'knpu.oauth2_client_state';
-
+    /**
+     * OAuth2Client constructor.
+     *
+     * @param AbstractProvider $provider
+     * @param RequestStack $requestStack
+     */
     public function __construct(AbstractProvider $provider, RequestStack $requestStack)
     {
         $this->provider = $provider;
diff --git a/src/DependencyInjection/KnpUOAuth2ClientExtension.php b/src/DependencyInjection/KnpUOAuth2ClientExtension.php
index 3244cec5..3f243fb0 100644
--- a/src/DependencyInjection/KnpUOAuth2ClientExtension.php
+++ b/src/DependencyInjection/KnpUOAuth2ClientExtension.php
@@ -31,13 +31,13 @@
 
 class KnpUOAuth2ClientExtension extends Extension
 {
-    /**
-     * @var bool
-     */
+    /** @var bool */
     private $checkExternalClassExistence;
 
+    /** @var array */
     private $configurators = [];
 
+    /** @var array */
     private static $supportedProviderTypes = [
         'facebook' => FacebookProviderConfigurator::class,
         'github' => GithubProviderConfigurator::class,
@@ -49,11 +49,22 @@ class KnpUOAuth2ClientExtension extends Extension
         'generic' => GenericProviderConfigurator::class,
     ];
 
+    /**
+     * KnpUOAuth2ClientExtension constructor.
+     *
+     * @param bool $checkExternalClassExistence
+     */
     public function __construct($checkExternalClassExistence = true)
     {
         $this->checkExternalClassExistence = $checkExternalClassExistence;
     }
 
+    /**
+     * Load the bundle configuration.
+     *
+     * @param array $configs
+     * @param ContainerBuilder $container
+     */
     public function load(array $configs, ContainerBuilder $container)
     {
         $processor = new Processor();
diff --git a/src/DependencyInjection/ProviderFactory.php b/src/DependencyInjection/ProviderFactory.php
index fc06a362..bd82de2c 100644
--- a/src/DependencyInjection/ProviderFactory.php
+++ b/src/DependencyInjection/ProviderFactory.php
@@ -19,13 +19,28 @@
  */
 class ProviderFactory
 {
-    private $generator;
-
+    /** @var UrlGeneratorInterface */
+    protected $generator;
+
+    /**
+     * ProviderFactory constructor.
+     *
+     * @param UrlGeneratorInterface $generator
+     */
     public function __construct(UrlGeneratorInterface $generator)
     {
         $this->generator = $generator;
     }
 
+    /**
+     * Creates a provider of the given class.
+     *
+     * @param string $class
+     * @param array $options
+     * @param string $redirectUri
+     * @param array $redirectParams
+     * @return mixed
+     */
     public function createProvider($class, array $options, $redirectUri, array $redirectParams = [])
     {
         $redirectUri = $this->generator
diff --git a/src/Security/Exception/FinishRegistrationException.php b/src/Security/Exception/FinishRegistrationException.php
index 8faaa88e..e261ba80 100644
--- a/src/Security/Exception/FinishRegistrationException.php
+++ b/src/Security/Exception/FinishRegistrationException.php
@@ -21,10 +21,10 @@ class FinishRegistrationException extends AuthenticationException
     private $userInformation;
 
     /**
-     * @param mixed         $userInfo Any info to be used to help registration
-     * @param string        $message
-     * @param int       $code
-     * @param \Exception    $previous
+     * @param mixed $userInfo Any info to be used to help registration
+     * @param string $message
+     * @param int $code
+     * @param \Exception $previous
      */
     public function __construct($userInfo, $message = '', $code = 0, Exception $previous = null)
     {
diff --git a/tests/DependencyInjection/KnpUOAuth2ClientExtensionTest.php b/tests/DependencyInjection/KnpUOAuth2ClientExtensionTest.php
index 7c752429..205fadf8 100644
--- a/tests/DependencyInjection/KnpUOAuth2ClientExtensionTest.php
+++ b/tests/DependencyInjection/KnpUOAuth2ClientExtensionTest.php
@@ -11,6 +11,7 @@
 namespace KnpU\OAuth2ClientBundle\Tests\DependencyInjection;
 
 use KnpU\OAuth2ClientBundle\DependencyInjection\KnpUOAuth2ClientExtension;
+use KnpU\OAuth2ClientBundle\DependencyInjection\Providers\ProviderConfiguratorInterface;
 use Symfony\Component\Config\Definition\ArrayNode;
 use Symfony\Component\Config\Definition\Builder\TreeBuilder;
 use Symfony\Component\Config\Definition\NodeInterface;
@@ -81,6 +82,29 @@ public function testFacebookProviderMakesService()
         );
     }
 
+    /**
+     * @dataProvider getAllProviderConfigurators
+     */
+    public function testProviderConfiguratorsAreFullyImplemented(ProviderConfiguratorInterface $providerConfigurator)
+    {
+        $this->assertRegexp('#^[ \w]+$#', $providerConfigurator->getProviderDisplayName());
+        if ('Generic' !== $providerConfigurator->getProviderDisplayName()) {
+            $this->assertRegexp('#^[\w-]+/[\w-]+$#', $providerConfigurator->getPackagistName());
+            $this->assertNotFalse(filter_var($providerConfigurator->getLibraryHomepage(), FILTER_VALIDATE_URL));
+            $this->assertTrue(class_exists($providerConfigurator->getClientClass([])));
+        }
+    }
+
+    public function getAllProviderConfigurators()
+    {
+        $extension = new KnpUOAuth2ClientExtension();
+        $configurators = [];
+        foreach (KnpUOAuth2ClientExtension::getAllSupportedTypes() as $type) {
+            $configurators[$type] = [$extension->getConfigurator($type)];
+        }
+        return $configurators;
+    }
+
     /**
      * @dataProvider provideTypesAndConfig
      */