diff --git a/.styleci.yml b/.styleci.yml
new file mode 100644
index 00000000..974f5fa5
--- /dev/null
+++ b/.styleci.yml
@@ -0,0 +1 @@
+preset: symfony
diff --git a/src/CacheInvalidator.php b/src/CacheInvalidator.php
index 4027c9e1..89969c77 100644
--- a/src/CacheInvalidator.php
+++ b/src/CacheInvalidator.php
@@ -76,7 +76,7 @@ class CacheInvalidator
     private $headerLength = 7500;
 
     /**
-     * Constructor
+     * Constructor.
      *
      * @param ProxyClientInterface $cache HTTP cache
      */
@@ -112,12 +112,12 @@ public function supports($operation)
             case self::INVALIDATE:
                 return $this->cache instanceof BanInterface;
             default:
-                throw new InvalidArgumentException('Unknown operation ' . $operation);
+                throw new InvalidArgumentException('Unknown operation '.$operation);
         }
     }
 
     /**
-     * Set event dispatcher
+     * Set event dispatcher.
      *
      * @param EventDispatcherInterface $eventDispatcher
      *
@@ -136,7 +136,7 @@ public function setEventDispatcher(EventDispatcherInterface $eventDispatcher)
     }
 
     /**
-     * Get event dispatcher
+     * Get event dispatcher.
      *
      * @return EventDispatcherInterface
      */
@@ -150,7 +150,7 @@ public function getEventDispatcher()
     }
 
     /**
-     * Add subscriber
+     * Add subscriber.
      *
      * @param EventSubscriberInterface $subscriber
      *
@@ -166,7 +166,7 @@ public function addSubscriber(EventSubscriberInterface $subscriber)
     }
 
     /**
-     * Set the HTTP header name that will hold cache tags
+     * Set the HTTP header name that will hold cache tags.
      *
      * @param string $tagsHeader
      *
@@ -184,7 +184,7 @@ public function setTagsHeader($tagsHeader)
     }
 
     /**
-     * Get the HTTP header name that will hold cache tags
+     * Get the HTTP header name that will hold cache tags.
      *
      * @return string
      *
@@ -196,7 +196,7 @@ public function getTagsHeader()
     }
 
     /**
-     * Invalidate a path or URL
+     * Invalidate a path or URL.
      *
      * @param string $path    Path or URL
      * @param array  $headers HTTP headers (optional)
@@ -217,7 +217,7 @@ public function invalidatePath($path, array $headers = array())
     }
 
     /**
-     * Refresh a path or URL
+     * Refresh a path or URL.
      *
      * @param string $path    Path or URL
      * @param array  $headers HTTP headers (optional)
diff --git a/src/Event.php b/src/Event.php
index 633af04f..ca850e9a 100644
--- a/src/Event.php
+++ b/src/Event.php
@@ -18,7 +18,7 @@ class Event extends BaseEvent
     private $exception;
 
     /**
-     * Set exception
+     * Set exception.
      *
      * @param \Exception $exception
      */
@@ -28,7 +28,7 @@ public function setException(\Exception $exception)
     }
 
     /**
-     * Get exception
+     * Get exception.
      *
      * @return \Exception
      */
diff --git a/src/EventListener/LogSubscriber.php b/src/EventListener/LogSubscriber.php
index 28a40535..04e910de 100644
--- a/src/EventListener/LogSubscriber.php
+++ b/src/EventListener/LogSubscriber.php
@@ -36,7 +36,7 @@ public static function getSubscribedEvents()
     {
         return array(
             Events::PROXY_UNREACHABLE_ERROR => 'onProxyUnreachableError',
-            Events::PROXY_RESPONSE_ERROR    => 'onProxyResponseError'
+            Events::PROXY_RESPONSE_ERROR => 'onProxyResponseError',
         );
     }
 
@@ -53,7 +53,7 @@ public function onProxyResponseError(Event $event)
     private function log($level, \Exception $exception)
     {
         $context = array(
-            'exception' => $exception
+            'exception' => $exception,
         );
 
         $this->logger->log($level, $exception->getMessage(), $context);
diff --git a/src/Events.php b/src/Events.php
index eb9c518d..2610729e 100644
--- a/src/Events.php
+++ b/src/Events.php
@@ -12,10 +12,10 @@
 namespace FOS\HttpCache;
 
 /**
- * Events thrown by the FOSHttpCache library
+ * Events thrown by the FOSHttpCache library.
  */
 final class Events
 {
     const PROXY_UNREACHABLE_ERROR = 'fos_http_cache.error.proxy_unreachable';
-    const PROXY_RESPONSE_ERROR    = 'fos_http_cache.error.response';
+    const PROXY_RESPONSE_ERROR = 'fos_http_cache.error.response';
 }
diff --git a/src/Exception/ExceptionCollection.php b/src/Exception/ExceptionCollection.php
index 44bb313b..155f900f 100644
--- a/src/Exception/ExceptionCollection.php
+++ b/src/Exception/ExceptionCollection.php
@@ -13,14 +13,14 @@
 
 /**
  * A collection of exceptions that might occur during the flush operation of a
- * ProxyClientInterface implementation
+ * ProxyClientInterface implementation.
  */
-class ExceptionCollection extends \Exception implements \IteratorAggregate, \Countable,  HttpCacheExceptionInterface
+class ExceptionCollection extends \Exception implements \IteratorAggregate, \Countable, HttpCacheExceptionInterface
 {
     private $exceptions = array();
 
     /**
-     * Add an exception to the collection
+     * Add an exception to the collection.
      *
      * @param \Exception $e
      *
@@ -48,11 +48,11 @@ public function getFirst()
             return $this->exceptions[0];
         }
 
-        return null;
+        return;
     }
 
     /**
-     * Get exception iterator
+     * Get exception iterator.
      *
      * @return \ArrayIterator
      */
@@ -62,7 +62,7 @@ public function getIterator()
     }
 
     /**
-     * Get number of exceptions in collection
+     * Get number of exceptions in collection.
      *
      * @return int
      */
diff --git a/src/Exception/HttpCacheExceptionInterface.php b/src/Exception/HttpCacheExceptionInterface.php
index fd9887c2..f86606f6 100644
--- a/src/Exception/HttpCacheExceptionInterface.php
+++ b/src/Exception/HttpCacheExceptionInterface.php
@@ -15,4 +15,5 @@
  * Common interface for all exceptions thrown by this library.
  */
 interface HttpCacheExceptionInterface
-{}
+{
+}
diff --git a/src/Exception/InvalidUrlException.php b/src/Exception/InvalidUrlException.php
index 6a4ba991..ad49258c 100644
--- a/src/Exception/InvalidUrlException.php
+++ b/src/Exception/InvalidUrlException.php
@@ -29,7 +29,7 @@ public static function invalidUrl($url, $reason = null)
             $msg .= sprintf('Reason: %s', $reason);
         }
 
-        return new InvalidUrlException($msg);
+        return new self($msg);
     }
 
     /**
@@ -40,7 +40,7 @@ public static function invalidUrl($url, $reason = null)
      */
     public static function invalidUrlParts($server, array $allowed)
     {
-        return new InvalidUrlException(sprintf(
+        return new self(sprintf(
             'Server "%s" is invalid. Only %s URL parts are allowed.',
             $server,
             implode(', ', $allowed)
@@ -56,7 +56,7 @@ public static function invalidUrlParts($server, array $allowed)
      */
     public static function invalidUrlScheme($url, $scheme, array $allowed)
     {
-        return new InvalidUrlException(sprintf(
+        return new self(sprintf(
             'Host "%s" with scheme "%s" is invalid. Only schemes "%s" are supported',
             $url,
             $scheme,
diff --git a/src/Exception/MissingHostException.php b/src/Exception/MissingHostException.php
index 0454ffbc..d1695bb3 100644
--- a/src/Exception/MissingHostException.php
+++ b/src/Exception/MissingHostException.php
@@ -26,11 +26,11 @@ public static function missingHost($path)
     {
         $msg = sprintf(
             'Path "%s" cannot be invalidated without a host. '
-            . 'Either invalidate full URLs containing hostnames instead of paths '
-            . 'or configure the caching proxy class with a hostname in the base path.',
+            .'Either invalidate full URLs containing hostnames instead of paths '
+            .'or configure the caching proxy class with a hostname in the base path.',
             $path
         );
 
-        return new MissingHostException($msg);
+        return new self($msg);
     }
 }
diff --git a/src/Exception/ProxyResponseException.php b/src/Exception/ProxyResponseException.php
index 8ecc7ead..445ac7db 100644
--- a/src/Exception/ProxyResponseException.php
+++ b/src/Exception/ProxyResponseException.php
@@ -37,6 +37,6 @@ public static function proxyResponse($host, $statusCode, $statusMessage, $detail
             $message .= ". $details";
         }
 
-        return new ProxyResponseException($message, $statusCode, $previous);
+        return new self($message, $statusCode, $previous);
     }
 }
diff --git a/src/Exception/ProxyUnreachableException.php b/src/Exception/ProxyUnreachableException.php
index 6c735306..3f1f94c5 100644
--- a/src/Exception/ProxyUnreachableException.php
+++ b/src/Exception/ProxyUnreachableException.php
@@ -36,7 +36,7 @@ public static function proxyUnreachable($host, $message, $details = '', \Excepti
             $message .= ". $details";
         }
 
-        return new ProxyUnreachableException(
+        return new self(
             $message,
             0,
             $previous
diff --git a/src/Handler/TagHandler.php b/src/Handler/TagHandler.php
index a8c43a7d..47566b7e 100644
--- a/src/Handler/TagHandler.php
+++ b/src/Handler/TagHandler.php
@@ -43,7 +43,7 @@ class TagHandler
     private $tags = array();
 
     /**
-     * Constructor
+     * Constructor.
      *
      * @param CacheInvalidator $invalidator  The invalidator instance.
      * @param string           $tagsHeader   Header to use for tags, defaults to X-Cache-Tags.
@@ -137,7 +137,7 @@ public function invalidateTags(array $tags)
              * header length by the largest tag (minus 1 for the implode character)
              */
             $tagsize = max(array_map('mb_strlen', $escapedTags));
-            $elems = floor($this->headerLength / ($tagsize - 1)) ? : 1;
+            $elems = floor($this->headerLength / ($tagsize - 1)) ?: 1;
         } else {
             $elems = count($escapedTags);
         }
diff --git a/src/ProxyClient/AbstractProxyClient.php b/src/ProxyClient/AbstractProxyClient.php
index ebf81c33..957ca425 100644
--- a/src/ProxyClient/AbstractProxyClient.php
+++ b/src/ProxyClient/AbstractProxyClient.php
@@ -23,35 +23,35 @@
 use Guzzle\Http\Message\RequestInterface;
 
 /**
- * Guzzle-based abstract caching proxy client
+ * Guzzle-based abstract caching proxy client.
  *
  * @author David de Boer <david@driebit.nl>
  */
 abstract class AbstractProxyClient implements ProxyClientInterface
 {
     /**
-     * IP addresses/hostnames of all caching proxy servers
+     * IP addresses/hostnames of all caching proxy servers.
      *
      * @var array
      */
     private $servers;
 
     /**
-     * HTTP client
+     * HTTP client.
      *
      * @var ClientInterface
      */
     private $client;
 
     /**
-     * Request queue
+     * Request queue.
      *
      * @var array|RequestInterface[]
      */
     private $queue;
 
     /**
-     * Constructor
+     * Constructor.
      *
      * @param array           $servers Caching proxy server hostnames or IP addresses,
      *                                 including port if not port 80.
@@ -73,7 +73,7 @@ public function __construct(array $servers, $baseUrl = null, ClientInterface $cl
     }
 
     /**
-     * Set caching proxy servers
+     * Set caching proxy servers.
      *
      * @param array $servers Caching proxy proxy server hostnames or IP
      *                       addresses, including port if not port 80.
@@ -92,7 +92,7 @@ public function setServers(array $servers)
 
     /**
      * Set application hostname, optionally including a base URL, for purge and
-     * refresh requests
+     * refresh requests.
      *
      * @param string $url Your application’s base URL or hostname
      */
@@ -106,7 +106,7 @@ public function setBaseUrl($url)
     }
 
     /**
-     * Get application base URL
+     * Get application base URL.
      *
      * @return string Your application base url
      */
@@ -132,7 +132,7 @@ public function flush()
     }
 
     /**
-     * Add a request to the queue
+     * Add a request to the queue.
      *
      * @param string $method  HTTP method
      * @param string $url     URL
@@ -163,7 +163,7 @@ private function getSignature($method, $url, array $headers)
     }
 
     /**
-     * Create request
+     * Create request.
      *
      * @param string $method  HTTP method
      * @param string $url     URL
@@ -177,7 +177,7 @@ protected function createRequest($method, $url, array $headers = array())
     }
 
     /**
-     * Sends all requests to each caching proxy server
+     * Sends all requests to each caching proxy server.
      *
      * Requests are sent in parallel to minimise impact on performance.
      *
@@ -213,7 +213,7 @@ private function sendRequests(array $requests)
     }
 
     /**
-     * Handle request exception
+     * Handle request exception.
      *
      * @param GuzzleExceptionCollection $exceptions
      *
@@ -253,7 +253,7 @@ protected function handleException(GuzzleExceptionCollection $exceptions)
     }
 
     /**
-     * Filter a URL
+     * Filter a URL.
      *
      * Prefix the URL with "http://" if it has no scheme, then check the URL
      * for validity. You can specify what parts of the URL are allowed.
@@ -296,7 +296,7 @@ protected function filterUrl($url, array $allowedParts = array())
     }
 
     /**
-     * Get default scheme
+     * Get default scheme.
      *
      * @return string
      */
@@ -306,7 +306,7 @@ protected function getDefaultScheme()
     }
 
     /**
-     * Get schemes allowed by caching proxy
+     * Get schemes allowed by caching proxy.
      *
      * @return string[] Array of schemes allowed by caching proxy, e.g. 'http'
      *                  or 'https'
diff --git a/src/ProxyClient/Invalidation/BanInterface.php b/src/ProxyClient/Invalidation/BanInterface.php
index 0f783d4a..58c472e9 100644
--- a/src/ProxyClient/Invalidation/BanInterface.php
+++ b/src/ProxyClient/Invalidation/BanInterface.php
@@ -15,7 +15,7 @@
 
 /**
  * An HTTP cache that supports invalidation by banning, that is, removing
- * objects from the cache that match a regular expression
+ * objects from the cache that match a regular expression.
  */
 interface BanInterface extends ProxyClientInterface
 {
@@ -23,7 +23,7 @@ interface BanInterface extends ProxyClientInterface
     const CONTENT_TYPE_ALL = self::REGEX_MATCH_ALL;
 
     /**
-     * Ban cached objects matching HTTP headers
+     * Ban cached objects matching HTTP headers.
      *
      * Each header is either a:
      * - regular string ('X-Host' => 'example.com')
diff --git a/src/ProxyClient/Invalidation/PurgeInterface.php b/src/ProxyClient/Invalidation/PurgeInterface.php
index 55017b18..be714ba0 100644
--- a/src/ProxyClient/Invalidation/PurgeInterface.php
+++ b/src/ProxyClient/Invalidation/PurgeInterface.php
@@ -23,7 +23,7 @@
 interface PurgeInterface extends ProxyClientInterface
 {
     /**
-     * Purge a URL
+     * Purge a URL.
      *
      * Purging a URL will remove the cache for the URL (including the query string)
      *
diff --git a/src/ProxyClient/Nginx.php b/src/ProxyClient/Nginx.php
index dcb9e66d..ec17db55 100644
--- a/src/ProxyClient/Nginx.php
+++ b/src/ProxyClient/Nginx.php
@@ -22,9 +22,9 @@
  */
 class Nginx extends AbstractProxyClient implements PurgeInterface, RefreshInterface
 {
-    const HTTP_METHOD_PURGE        = 'PURGE';
-    const HTTP_METHOD_REFRESH      = 'GET';
-    const HTTP_HEADER_REFRESH      = 'X-Refresh';
+    const HTTP_METHOD_PURGE = 'PURGE';
+    const HTTP_METHOD_REFRESH = 'GET';
+    const HTTP_HEADER_REFRESH = 'X-Refresh';
 
     /**
      * Path location that triggers purging. If false, same location purging is
@@ -91,7 +91,7 @@ protected function getAllowedSchemes()
     }
 
     /**
-     * Create the correct URL to purge a resource
+     * Create the correct URL to purge a resource.
      *
      * @param string $url URL
      *
diff --git a/src/ProxyClient/ProxyClientInterface.php b/src/ProxyClient/ProxyClientInterface.php
index 6d0ca364..b193f590 100644
--- a/src/ProxyClient/ProxyClientInterface.php
+++ b/src/ProxyClient/ProxyClientInterface.php
@@ -14,7 +14,7 @@
 use FOS\HttpCache\Exception\ExceptionCollection;
 
 /**
- * An HTTP caching reverse proxy client
+ * An HTTP caching reverse proxy client.
  *
  * Implementations should implement at least one of the Invalidation interfaces.
  */
diff --git a/src/ProxyClient/Symfony.php b/src/ProxyClient/Symfony.php
index d9125d8a..f7bdfe16 100644
--- a/src/ProxyClient/Symfony.php
+++ b/src/ProxyClient/Symfony.php
@@ -11,9 +11,6 @@
 
 namespace FOS\HttpCache\ProxyClient;
 
-use FOS\HttpCache\Exception\InvalidArgumentException;
-use FOS\HttpCache\Exception\MissingHostException;
-use FOS\HttpCache\ProxyClient\Invalidation\BanInterface;
 use FOS\HttpCache\ProxyClient\Invalidation\PurgeInterface;
 use FOS\HttpCache\ProxyClient\Invalidation\RefreshInterface;
 use FOS\HttpCache\SymfonyCache\PurgeSubscriber;
@@ -38,7 +35,7 @@ class Symfony extends AbstractProxyClient implements PurgeInterface, RefreshInte
     private $options;
 
     /**
-     * {@inheritDoc}
+     * {@inheritdoc}
      *
      * When creating the client, you can configure options:
      *
diff --git a/src/ProxyClient/Varnish.php b/src/ProxyClient/Varnish.php
index 8b95b3ab..f98d2720 100644
--- a/src/ProxyClient/Varnish.php
+++ b/src/ProxyClient/Varnish.php
@@ -24,11 +24,11 @@
  */
 class Varnish extends AbstractProxyClient implements BanInterface, PurgeInterface, RefreshInterface
 {
-    const HTTP_METHOD_BAN          = 'BAN';
-    const HTTP_METHOD_PURGE        = 'PURGE';
-    const HTTP_METHOD_REFRESH      = 'GET';
-    const HTTP_HEADER_HOST         = 'X-Host';
-    const HTTP_HEADER_URL          = 'X-Url';
+    const HTTP_METHOD_BAN = 'BAN';
+    const HTTP_METHOD_PURGE = 'PURGE';
+    const HTTP_METHOD_REFRESH = 'GET';
+    const HTTP_HEADER_HOST = 'X-Host';
+    const HTTP_HEADER_URL = 'X-Url';
     const HTTP_HEADER_CONTENT_TYPE = 'X-Content-Type';
 
     /**
@@ -37,9 +37,9 @@ class Varnish extends AbstractProxyClient implements BanInterface, PurgeInterfac
      * @var array
      */
     private $defaultBanHeaders = array(
-        self::HTTP_HEADER_HOST         => self::REGEX_MATCH_ALL,
-        self::HTTP_HEADER_URL          => self::REGEX_MATCH_ALL,
-        self::HTTP_HEADER_CONTENT_TYPE => self::REGEX_MATCH_ALL
+        self::HTTP_HEADER_HOST => self::REGEX_MATCH_ALL,
+        self::HTTP_HEADER_URL => self::REGEX_MATCH_ALL,
+        self::HTTP_HEADER_CONTENT_TYPE => self::REGEX_MATCH_ALL,
     );
 
     /**
@@ -88,7 +88,7 @@ public function banPath($path, $contentType = null, $hosts = null)
             if (!count($hosts)) {
                 throw new InvalidArgumentException('Either supply a list of hosts or null, but not an empty array.');
             }
-            $hosts = '^('.join('|', $hosts).')$';
+            $hosts = '^('.implode('|', $hosts).')$';
         }
 
         $headers = array(
@@ -131,7 +131,6 @@ public function refresh($url, array $headers = array())
      *
      * @throws MissingHostException If a relative path is queued for purge/
      *                              refresh and no base URL is set
-     *
      */
     protected function createRequest($method, $url, array $headers = array())
     {
diff --git a/src/SymfonyCache/AccessControlledSubscriber.php b/src/SymfonyCache/AccessControlledSubscriber.php
index 3016a07b..95c787b0 100644
--- a/src/SymfonyCache/AccessControlledSubscriber.php
+++ b/src/SymfonyCache/AccessControlledSubscriber.php
@@ -14,9 +14,6 @@
 use Symfony\Component\EventDispatcher\EventSubscriberInterface;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\RequestMatcher;
-use Symfony\Component\HttpFoundation\Response;
-use Symfony\Component\HttpKernel\Exception\BadRequestHttpException;
-use Symfony\Component\HttpKernel\HttpKernelInterface;
 
 /**
  * Base class for handlers for the symfony built-in HttpCache that need access
@@ -64,7 +61,7 @@ public function __construct(RequestMatcher $requestMatcher = null, $ips = null)
      *
      * @param Request $request The request to check.
      *
-     * @return boolean Whether access is granted.
+     * @return bool Whether access is granted.
      */
     protected function isRequestAllowed(Request $request)
     {
diff --git a/src/SymfonyCache/EventDispatchingHttpCache.php b/src/SymfonyCache/EventDispatchingHttpCache.php
index 065364cc..840e4608 100644
--- a/src/SymfonyCache/EventDispatchingHttpCache.php
+++ b/src/SymfonyCache/EventDispatchingHttpCache.php
@@ -38,7 +38,7 @@ abstract class EventDispatchingHttpCache extends HttpCache implements CacheInval
     private $eventDispatcher;
 
     /**
-     * Get event dispatcher
+     * Get event dispatcher.
      *
      * @return EventDispatcherInterface
      */
@@ -52,7 +52,7 @@ public function getEventDispatcher()
     }
 
     /**
-     * Add subscriber
+     * Add subscriber.
      *
      * @param EventSubscriberInterface $subscriber
      */
@@ -62,7 +62,7 @@ public function addSubscriber(EventSubscriberInterface $subscriber)
     }
 
     /**
-     * {@inheritDoc}
+     * {@inheritdoc}
      *
      * Adding the Events::PRE_HANDLE event.
      */
@@ -82,7 +82,7 @@ public function handle(Request $request, $type = HttpKernelInterface::MASTER_REQ
     /**
      * Made public to allow event subscribers to do refresh operations.
      *
-     * {@inheritDoc}
+     * {@inheritdoc}
      */
     public function fetch(Request $request, $catch = false)
     {
@@ -90,7 +90,7 @@ public function fetch(Request $request, $catch = false)
     }
 
     /**
-     * {@inheritDoc}
+     * {@inheritdoc}
      *
      * Adding the Events::PRE_INVALIDATE event.
      */
diff --git a/src/SymfonyCache/PurgeSubscriber.php b/src/SymfonyCache/PurgeSubscriber.php
index 8e3cbd63..ea3d0233 100644
--- a/src/SymfonyCache/PurgeSubscriber.php
+++ b/src/SymfonyCache/PurgeSubscriber.php
@@ -11,11 +11,9 @@
 
 namespace FOS\HttpCache\SymfonyCache;
 
-use Symfony\Component\EventDispatcher\EventSubscriberInterface;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\RequestMatcher;
 use Symfony\Component\HttpFoundation\Response;
-use Symfony\Component\HttpKernel\HttpKernelInterface;
 use Symfony\Component\OptionsResolver\OptionsResolver;
 
 /**
diff --git a/src/SymfonyCache/RefreshSubscriber.php b/src/SymfonyCache/RefreshSubscriber.php
index f9608228..4161d584 100644
--- a/src/SymfonyCache/RefreshSubscriber.php
+++ b/src/SymfonyCache/RefreshSubscriber.php
@@ -11,11 +11,8 @@
 
 namespace FOS\HttpCache\SymfonyCache;
 
-use Symfony\Component\EventDispatcher\EventSubscriberInterface;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\RequestMatcher;
-use Symfony\Component\HttpFoundation\Response;
-use Symfony\Component\HttpKernel\HttpKernelInterface;
 use Symfony\Component\OptionsResolver\OptionsResolver;
 
 /**
diff --git a/src/Test/NginxTestCase.php b/src/Test/NginxTestCase.php
index 2eb4023f..a7f2054b 100644
--- a/src/Test/NginxTestCase.php
+++ b/src/Test/NginxTestCase.php
@@ -61,7 +61,7 @@ protected function getConfigFile()
     {
         if (!defined('NGINX_FILE')) {
             throw new \Exception('Specify the NGINX'
-                    . ' configuration file path in phpunit.xml or override getConfigFile()');
+                    .' configuration file path in phpunit.xml or override getConfigFile()');
         }
 
         // NGINX needs an absolute path
@@ -69,7 +69,7 @@ protected function getConfigFile()
     }
 
     /**
-     * Defaults to "nginx"
+     * Defaults to "nginx".
      *
      * @return string
      */
@@ -89,7 +89,7 @@ protected function getCachingProxyPort()
     }
 
     /**
-     * Get NGINX cache directory
+     * Get NGINX cache directory.
      */
     protected function getCacheDir()
     {
@@ -118,7 +118,7 @@ protected function getProxy()
     }
 
     /**
-     * Get proxy client
+     * Get proxy client.
      *
      * @param string $purgeLocation Optional purgeLocation
      *
@@ -128,7 +128,7 @@ protected function getProxyClient($purgeLocation = '')
     {
         if (null === $this->proxyClient) {
             $this->proxyClient = new Nginx(
-                array('http://127.0.0.1:' . $this->getCachingProxyPort()),
+                array('http://127.0.0.1:'.$this->getCachingProxyPort()),
                 $this->getHostName(),
                 $purgeLocation
             );
diff --git a/src/Test/PHPUnit/AbstractCacheConstraint.php b/src/Test/PHPUnit/AbstractCacheConstraint.php
index 61d027d4..09838ccf 100644
--- a/src/Test/PHPUnit/AbstractCacheConstraint.php
+++ b/src/Test/PHPUnit/AbstractCacheConstraint.php
@@ -12,14 +12,14 @@
 namespace FOS\HttpCache\Test\PHPUnit;
 
 /**
- * Abstract cache constraint
+ * Abstract cache constraint.
  */
 abstract class AbstractCacheConstraint extends \PHPUnit_Framework_Constraint
 {
     protected $header = 'X-Cache';
 
     /**
-     * Constructor
+     * Constructor.
      *
      * @param string $header Cache debug header; defaults to X-Cache-Debug
      */
@@ -33,7 +33,7 @@ public function __construct($header = null)
     }
 
     /**
-     * Get cache header value
+     * Get cache header value.
      *
      * @return string
      */
@@ -48,7 +48,7 @@ protected function matches($other)
             throw new \RuntimeException(
                 sprintf(
                     'Response has no "%s" header. Configure your caching proxy '
-                    . 'to set the header with cache hit/miss status.',
+                    .'to set the header with cache hit/miss status.',
                     $this->header
                 )
             );
@@ -62,6 +62,6 @@ protected function matches($other)
      */
     protected function failureDescription($other)
     {
-        return (string) $other . ' ' . $this->toString();
+        return (string) $other.' '.$this->toString();
     }
 }
diff --git a/src/Test/Proxy/AbstractProxy.php b/src/Test/Proxy/AbstractProxy.php
index 0d804a23..74de3821 100644
--- a/src/Test/Proxy/AbstractProxy.php
+++ b/src/Test/Proxy/AbstractProxy.php
@@ -21,7 +21,7 @@ abstract class AbstractProxy implements ProxyInterface
     protected $ip = '127.0.0.1';
 
     /**
-     * Wait for caching proxy to be started up and reachable
+     * Wait for caching proxy to be started up and reachable.
      *
      * @param string $ip
      * @param int    $port
@@ -48,7 +48,7 @@ function () use ($ip, $port) {
     }
 
     /**
-     * Wait for caching proxy to be started up and reachable
+     * Wait for caching proxy to be started up and reachable.
      *
      * @param string $ip
      * @param int    $port
@@ -77,7 +77,7 @@ function () use ($ip, $port) {
 
     protected function wait($timeout, $callback)
     {
-        for ($i = 0; $i < $timeout; $i++) {
+        for ($i = 0; $i < $timeout; ++$i) {
             if ($callback()) {
                 return true;
             }
@@ -89,7 +89,7 @@ protected function wait($timeout, $callback)
     }
 
     /**
-     * Run a shell command
+     * Run a shell command.
      *
      * @param string $command
      * @param array  $arguments
@@ -109,7 +109,6 @@ protected function runCommand($command, array $arguments)
         }
     }
 
-
     /**
      * @param int $port
      */
@@ -127,7 +126,7 @@ public function getPort()
     }
 
     /**
-     * Set Varnish binary (defaults to varnishd)
+     * Set Varnish binary (defaults to varnishd).
      *
      * @param string $binary
      */
@@ -137,7 +136,7 @@ public function setBinary($binary)
     }
 
     /**
-     * Get Varnish binary
+     * Get Varnish binary.
      *
      * @return string
      */
@@ -146,9 +145,8 @@ public function getBinary()
         return $this->binary;
     }
 
-
     /**
-     * Set IP address (defaults to 127.0.0.1)
+     * Set IP address (defaults to 127.0.0.1).
      *
      * @param string $ip
      */
@@ -158,7 +156,7 @@ public function setIp($ip)
     }
 
     /**
-     * Get IP address
+     * Get IP address.
      *
      * @return string
      */
@@ -175,7 +173,7 @@ public function getIp()
     public function setConfigFile($configFile)
     {
         if (!file_exists($configFile)) {
-            throw new \InvalidArgumentException('Cannot find config file: ' . $configFile);
+            throw new \InvalidArgumentException('Cannot find config file: '.$configFile);
         }
 
         $this->configFile = $configFile;
diff --git a/src/Test/Proxy/NginxProxy.php b/src/Test/Proxy/NginxProxy.php
index 5192eb3b..1686504d 100644
--- a/src/Test/Proxy/NginxProxy.php
+++ b/src/Test/Proxy/NginxProxy.php
@@ -20,14 +20,14 @@ class NginxProxy extends Abstractproxy
     protected $cacheDir;
 
     /**
-     * Constructor
+     * Constructor.
      *
      * @param string $configFile Path to NGINX configuration file
      */
     public function __construct($configFile)
     {
         $this->setConfigFile($configFile);
-        $this->setCacheDir(sys_get_temp_dir() . DIRECTORY_SEPARATOR . 'foshttpcache-nginx');
+        $this->setCacheDir(sys_get_temp_dir().DIRECTORY_SEPARATOR.'foshttpcache-nginx');
     }
 
     /**
@@ -38,8 +38,8 @@ public function start()
         $this->runCommand(
             $this->getBinary(),
             array(
-                '-c', $this->getConfigFile() ,
-                '-g', 'pid ' . $this->pid . ';'
+                '-c', $this->getConfigFile(),
+                '-g', 'pid '.$this->pid.';',
             )
         );
 
diff --git a/src/Test/Proxy/ProxyInterface.php b/src/Test/Proxy/ProxyInterface.php
index 4e20e59f..52e35d6a 100644
--- a/src/Test/Proxy/ProxyInterface.php
+++ b/src/Test/Proxy/ProxyInterface.php
@@ -12,22 +12,22 @@
 namespace FOS\HttpCache\Test\Proxy;
 
 /**
- * Controls a HTTP caching proxy server
+ * Controls a HTTP caching proxy server.
  */
 interface ProxyInterface
 {
     /**
-     * Start the proxy server
+     * Start the proxy server.
      */
     public function start();
 
     /**
-     * Stop the proxy server
+     * Stop the proxy server.
      */
     public function stop();
 
     /**
-     * Clear all cached content from the proxy server
+     * Clear all cached content from the proxy server.
      */
     public function clear();
 }
diff --git a/src/Test/Proxy/SymfonyProxy.php b/src/Test/Proxy/SymfonyProxy.php
index ffc6c42f..4b861828 100644
--- a/src/Test/Proxy/SymfonyProxy.php
+++ b/src/Test/Proxy/SymfonyProxy.php
@@ -20,17 +20,17 @@
 class SymfonyProxy implements ProxyInterface
 {
     /**
-     * Get Symfony cache directory
+     * Get Symfony cache directory.
      *
      * @return string
      */
     public function getCacheDir()
     {
-        return defined('SYMFONY_CACHE_DIR') ? SYMFONY_CACHE_DIR : sys_get_temp_dir() . '/foshttpcache-symfony';
+        return defined('SYMFONY_CACHE_DIR') ? SYMFONY_CACHE_DIR : sys_get_temp_dir().'/foshttpcache-symfony';
     }
 
     /**
-     * Start the proxy server
+     * Start the proxy server.
      */
     public function start()
     {
@@ -38,7 +38,7 @@ public function start()
     }
 
     /**
-     * Stop the proxy server
+     * Stop the proxy server.
      */
     public function stop()
     {
@@ -46,14 +46,14 @@ public function stop()
     }
 
     /**
-     * Clear all cached content from the proxy server
+     * Clear all cached content from the proxy server.
      */
     public function clear()
     {
         if (is_dir($this->getCacheDir())) {
             $path = realpath($this->getCacheDir());
             if (!$this->getCacheDir() || '/' == $path) {
-                throw new \Exception('Invalid test setup, the cache dir is ' . $path);
+                throw new \Exception('Invalid test setup, the cache dir is '.$path);
             }
             if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
                 system('DEL /S '.$path);
diff --git a/src/Test/Proxy/VarnishProxy.php b/src/Test/Proxy/VarnishProxy.php
index 93e13468..b6544b4e 100644
--- a/src/Test/Proxy/VarnishProxy.php
+++ b/src/Test/Proxy/VarnishProxy.php
@@ -25,14 +25,14 @@ class VarnishProxy extends AbstractProxy
     protected $cacheDir;
 
     /**
-     * Constructor
+     * Constructor.
      *
      * @param string $configFile Path to VCL file
      */
     public function __construct($configFile)
     {
         $this->setConfigFile($configFile);
-        $this->setCacheDir(sys_get_temp_dir() . DIRECTORY_SEPARATOR . 'foshttpcache-varnish');
+        $this->setCacheDir(sys_get_temp_dir().DIRECTORY_SEPARATOR.'foshttpcache-varnish');
     }
 
     /**
@@ -43,12 +43,12 @@ public function start()
         $this->runCommand(
             $this->getBinary(),
             array(
-                '-a', $this->ip . ':' . $this->getPort(),
-                '-T', $this->ip . ':' . $this->getManagementPort(),
+                '-a', $this->ip.':'.$this->getPort(),
+                '-T', $this->ip.':'.$this->getManagementPort(),
                 '-f', $this->getConfigFile(),
                 '-n', $this->getCacheDir(),
-                '-p', 'vcl_dir=' . $this->getConfigDir(),
-                '-P', $this->pid
+                '-p', 'vcl_dir='.$this->getConfigDir(),
+                '-P', $this->pid,
             )
         );
 
@@ -101,7 +101,7 @@ public function getConfigDir()
     }
 
     /**
-     * Set Varnish management port (defaults to 6182)
+     * Set Varnish management port (defaults to 6182).
      *
      * @param int $managementPort
      */
@@ -111,7 +111,7 @@ public function setManagementPort($managementPort)
     }
 
     /**
-     * Get Varnish management port
+     * Get Varnish management port.
      *
      * @return int
      */
@@ -121,7 +121,7 @@ public function getManagementPort()
     }
 
     /**
-     * Set Varnish cache directory
+     * Set Varnish cache directory.
      *
      * @param string $cacheDir
      */
@@ -131,7 +131,7 @@ public function setCacheDir($cacheDir)
     }
 
     /**
-     * Get Varnish cache directory
+     * Get Varnish cache directory.
      *
      * @return string
      */
diff --git a/src/Test/ProxyTestCase.php b/src/Test/ProxyTestCase.php
index 073ed5a6..53706508 100644
--- a/src/Test/ProxyTestCase.php
+++ b/src/Test/ProxyTestCase.php
@@ -17,8 +17,7 @@
 use Guzzle\Http\Message\Response;
 
 /**
- * Abstract caching proxy test case
- *
+ * Abstract caching proxy test case.
  */
 abstract class ProxyTestCase extends \PHPUnit_Framework_TestCase
 {
@@ -30,7 +29,7 @@ abstract class ProxyTestCase extends \PHPUnit_Framework_TestCase
     protected $httpClient;
 
     /**
-     * Assert a cache miss
+     * Assert a cache miss.
      *
      * @param Response $response
      * @param string   $message  Test failure message (optional)
@@ -41,7 +40,7 @@ public function assertMiss(Response $response, $message = null)
     }
 
     /**
-     * Assert a cache hit
+     * Assert a cache hit.
      *
      * @param Response $response
      * @param string   $message  Test failure message (optional)
@@ -62,7 +61,7 @@ public static function isCacheMiss()
     }
 
     /**
-     * Get HTTP response from your application
+     * Get HTTP response from your application.
      *
      * @param string $url
      * @param array  $headers
@@ -76,7 +75,7 @@ public function getResponse($url, array $headers = array(), $options = array())
     }
 
     /**
-     * Get HTTP client for your application
+     * Get HTTP client for your application.
      *
      * @return Client
      */
@@ -84,7 +83,7 @@ public function getHttpClient()
     {
         if (null === $this->httpClient) {
             $this->httpClient = new Client(
-                'http://' . $this->getHostName() . ':' . $this->getCachingProxyPort(),
+                'http://'.$this->getHostName().':'.$this->getCachingProxyPort(),
                 array('curl.options' => array(CURLOPT_FORBID_REUSE => true))
             );
         }
@@ -93,7 +92,7 @@ public function getHttpClient()
     }
 
     /**
-     * Start the proxy server and reset any cached content
+     * Start the proxy server and reset any cached content.
      */
     protected function setUp()
     {
@@ -101,7 +100,7 @@ protected function setUp()
     }
 
     /**
-     * Stop the proxy server
+     * Stop the proxy server.
      */
     protected function tearDown()
     {
@@ -109,7 +108,7 @@ protected function tearDown()
     }
 
     /**
-     * Get the hostname where your application can be reached
+     * Get the hostname where your application can be reached.
      *
      * @throws \Exception
      *
@@ -125,21 +124,21 @@ protected function getHostName()
     }
 
     /**
-     * Get proxy server
+     * Get proxy server.
      *
      * @return \FOS\HttpCache\Test\Proxy\ProxyInterface
      */
     abstract protected function getProxy();
 
     /**
-     * Get proxy client
+     * Get proxy client.
      *
      * @return \FOS\HttpCache\ProxyClient\ProxyClientInterface
      */
     abstract protected function getProxyClient();
 
     /**
-     * Get port that caching proxy listens on
+     * Get port that caching proxy listens on.
      *
      * @return int
      */
diff --git a/src/Test/SymfonyTestCase.php b/src/Test/SymfonyTestCase.php
index 5141f555..cca29ad7 100644
--- a/src/Test/SymfonyTestCase.php
+++ b/src/Test/SymfonyTestCase.php
@@ -44,7 +44,7 @@ abstract class SymfonyTestCase extends ProxyTestCase
     protected $proxy;
 
     /**
-     * Get server port
+     * Get server port.
      *
      * @return int
      *
@@ -72,7 +72,7 @@ protected function getProxy()
     }
 
     /**
-     * Get Symfony proxy client
+     * Get Symfony proxy client.
      *
      * We use a non-default method for PURGE because the built-in PHP webserver
      * does not allow arbitrary HTTP methods.
@@ -84,8 +84,8 @@ protected function getProxyClient()
     {
         if (null === $this->proxyClient) {
             $this->proxyClient = new Symfony(
-                array('http://127.0.0.1:' . $this->getCachingProxyPort()),
-                $this->getHostName() . ':' . $this->getCachingProxyPort(),
+                array('http://127.0.0.1:'.$this->getCachingProxyPort()),
+                $this->getHostName().':'.$this->getCachingProxyPort(),
                 null,
                 array('purge_method' => 'NOTIFY')
             );
diff --git a/src/Test/VarnishTestCase.php b/src/Test/VarnishTestCase.php
index 9297f577..21eabce3 100644
--- a/src/Test/VarnishTestCase.php
+++ b/src/Test/VarnishTestCase.php
@@ -67,7 +67,7 @@ protected function getConfigFile()
     }
 
     /**
-     * Get Varnish binary
+     * Get Varnish binary.
      *
      * @return string
      */
@@ -77,7 +77,7 @@ protected function getBinary()
     }
 
     /**
-     * Get Varnish port
+     * Get Varnish port.
      *
      * @return int
      */
@@ -87,7 +87,7 @@ protected function getCachingProxyPort()
     }
 
     /**
-     * Get Varnish management port
+     * Get Varnish management port.
      *
      * @return int
      */
@@ -97,7 +97,7 @@ protected function getVarnishMgmtPort()
     }
 
     /**
-     * Get Varnish cache directory
+     * Get Varnish cache directory.
      *
      * @return string
      */
@@ -107,7 +107,7 @@ protected function getCacheDir()
     }
 
     /**
-     * Defaults to 3
+     * Defaults to 3.
      *
      * @return int
      */
@@ -144,7 +144,7 @@ protected function getProxy()
     }
 
     /**
-     * Get Varnish proxy client
+     * Get Varnish proxy client.
      *
      * @return Varnish
      */
@@ -152,8 +152,8 @@ protected function getProxyClient()
     {
         if (null === $this->proxyClient) {
             $this->proxyClient = new Varnish(
-                array('http://127.0.0.1:' . $this->getProxy()->getPort()),
-                $this->getHostName() . ':' . $this->getProxy()->getPort()
+                array('http://127.0.0.1:'.$this->getProxy()->getPort()),
+                $this->getHostName().':'.$this->getProxy()->getPort()
             );
         }
 
diff --git a/src/UserContext/ContextProviderInterface.php b/src/UserContext/ContextProviderInterface.php
index c1c47507..e96818e8 100644
--- a/src/UserContext/ContextProviderInterface.php
+++ b/src/UserContext/ContextProviderInterface.php
@@ -12,7 +12,7 @@
 namespace FOS\HttpCache\UserContext;
 
 /**
- * Allow a class to update a user context
+ * Allow a class to update a user context.
  */
 interface ContextProviderInterface
 {
diff --git a/src/UserContext/HashGenerator.php b/src/UserContext/HashGenerator.php
index 57ff02f3..97a0fc56 100644
--- a/src/UserContext/HashGenerator.php
+++ b/src/UserContext/HashGenerator.php
@@ -14,7 +14,7 @@
 use FOS\HttpCache\Exception\InvalidArgumentException;
 
 /**
- * Generate a hash for a UserContext by getting all the parameters needed across all registered services
+ * Generate a hash for a UserContext by getting all the parameters needed across all registered services.
  */
 class HashGenerator
 {
@@ -24,7 +24,7 @@ class HashGenerator
     private $providers = array();
 
     /**
-     * Constructor
+     * Constructor.
      *
      * @param ContextProviderInterface[] $providers
      *
@@ -42,7 +42,7 @@ public function __construct(array $providers)
     }
 
     /**
-     * Collect UserContext parameters and generate a hash from that
+     * Collect UserContext parameters and generate a hash from that.
      *
      * @return string The hash generated
      */
@@ -59,11 +59,11 @@ public function generateHash()
         // Sort by key (alphanumeric), as order should not make hash vary
         ksort($parameters);
 
-        return hash("sha256", serialize($parameters));
+        return hash('sha256', serialize($parameters));
     }
 
     /**
-     * Register a provider to be called for updating a UserContext before generating the Hash
+     * Register a provider to be called for updating a UserContext before generating the Hash.
      *
      * @param ContextProviderInterface $provider A context provider to be called to get context information about the current request.
      */
diff --git a/src/UserContext/UserContext.php b/src/UserContext/UserContext.php
index 52da10aa..16ba9e2e 100644
--- a/src/UserContext/UserContext.php
+++ b/src/UserContext/UserContext.php
@@ -12,7 +12,7 @@
 namespace FOS\HttpCache\UserContext;
 
 /**
- * A UserContext is a set of parameters which allow to determinate different views for an url
+ * A UserContext is a set of parameters which allow to determinate different views for an url.
  *
  * For example a menu can be different if a user is authenticated or not,
  * in this case the UserContext should have a authenticated parameter set
@@ -23,7 +23,7 @@ class UserContext implements \IteratorAggregate
     private $parameters = array();
 
     /**
-     * Set a parameter for this context
+     * Set a parameter for this context.
      *
      * @param string $key   Parameter identifier
      * @param mixed  $value Parameter value (it should be serializable)
@@ -34,7 +34,7 @@ public function addParameter($key, $value)
     }
 
     /**
-     * Set all the parameters of this context
+     * Set all the parameters of this context.
      *
      * @param array $parameters
      */
@@ -44,11 +44,11 @@ public function setParameters(array $parameters)
     }
 
     /**
-     * Determine whether a parameter exists
+     * Determine whether a parameter exists.
      *
      * @param string $key
      *
-     * @return boolean
+     * @return bool
      */
     public function hasParameter($key)
     {
@@ -56,7 +56,7 @@ public function hasParameter($key)
     }
 
     /**
-     * Return all parameters of this context
+     * Return all parameters of this context.
      *
      * @return array
      */
diff --git a/tests/Functional/Fixtures/Symfony/AppCache.php b/tests/Functional/Fixtures/Symfony/AppCache.php
index 090fa872..6bc04dd4 100644
--- a/tests/Functional/Fixtures/Symfony/AppCache.php
+++ b/tests/Functional/Fixtures/Symfony/AppCache.php
@@ -1,5 +1,14 @@
 <?php
 
+/*
+ * This file is part of the FOSHttpCache package.
+ *
+ * (c) FriendsOfSymfony <http://friendsofsymfony.github.com/>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace FOS\HttpCache\Tests\Functional\Fixtures\Symfony;
 
 use FOS\HttpCache\SymfonyCache\EventDispatchingHttpCache;
diff --git a/tests/Functional/Fixtures/Symfony/AppKernel.php b/tests/Functional/Fixtures/Symfony/AppKernel.php
index e518a286..6fa292e8 100644
--- a/tests/Functional/Fixtures/Symfony/AppKernel.php
+++ b/tests/Functional/Fixtures/Symfony/AppKernel.php
@@ -1,5 +1,14 @@
 <?php
 
+/*
+ * This file is part of the FOSHttpCache package.
+ *
+ * (c) FriendsOfSymfony <http://friendsofsymfony.github.com/>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace FOS\HttpCache\Tests\Functional\Fixtures\Symfony;
 
 use Symfony\Component\HttpFoundation\Request;
@@ -14,7 +23,7 @@ class AppKernel implements HttpKernelInterface
     /**
      * This simplistic kernel handles the request immediately inline.
      *
-     * {@inheritDoc}
+     * {@inheritdoc}
      */
     public function handle(Request $request, $type = HttpKernelInterface::MASTER_REQUEST, $catch = true)
     {
diff --git a/tests/Functional/Fixtures/web/symfony.php b/tests/Functional/Fixtures/web/symfony.php
index 4a5c1c5b..9bc715de 100644
--- a/tests/Functional/Fixtures/web/symfony.php
+++ b/tests/Functional/Fixtures/web/symfony.php
@@ -1,5 +1,14 @@
 <?php
 
+/*
+ * This file is part of the FOSHttpCache package.
+ *
+ * (c) FriendsOfSymfony <http://friendsofsymfony.github.com/>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 use FOS\HttpCache\SymfonyCache\PurgeSubscriber;
 use FOS\HttpCache\SymfonyCache\RefreshSubscriber;
 use FOS\HttpCache\SymfonyCache\UserContextSubscriber;
diff --git a/tests/Functional/Fixtures/web/user_context.php b/tests/Functional/Fixtures/web/user_context.php
index c93c9d70..739a0b2e 100644
--- a/tests/Functional/Fixtures/web/user_context.php
+++ b/tests/Functional/Fixtures/web/user_context.php
@@ -13,20 +13,20 @@
 
 if (isset($_GET['accept'])) {
     if ($_GET['accept'] != $_SERVER['HTTP_ACCEPT']) {
-        header('HTTP/1.1 500 Wrong accept header "' . $_SERVER['HTTP_ACCEPT'] . '", expected "' . $_GET['accept'] . '"');
+        header('HTTP/1.1 500 Wrong accept header "'.$_SERVER['HTTP_ACCEPT'].'", expected "'.$_GET['accept'].'"');
         exit;
     }
 } elseif (isset($_SERVER['HTTP_ACCEPT'])) {
-    header('HTTP/1.1 500 Expected no accept header ' . $_SERVER['HTTP_ACCEPT']);
+    header('HTTP/1.1 500 Expected no accept header '.$_SERVER['HTTP_ACCEPT']);
     exit;
 }
 
 if ('POST' == strtoupper($_SERVER['REQUEST_METHOD'])) {
-    echo "POST";
+    echo 'POST';
     exit;
 }
 
-if (!isset($_COOKIE[0]) || ($_COOKIE[0] != "foo" && $_COOKIE[0] != "bar")) {
+if (!isset($_COOKIE[0]) || ($_COOKIE[0] != 'foo' && $_COOKIE[0] != 'bar')) {
     header('HTTP/1.1 403');
     exit;
 }
@@ -34,10 +34,10 @@
 header('Cache-Control: max-age=3600');
 header('Vary: X-User-Context-Hash');
 
-if ($_COOKIE[0] == "foo") {
+if ($_COOKIE[0] == 'foo') {
     header('X-HashTest: foo');
-    echo "foo";
+    echo 'foo';
 } else {
     header('X-HashTest: bar');
-    echo "bar";
+    echo 'bar';
 }
diff --git a/tests/Functional/Fixtures/web/user_context_anon.php b/tests/Functional/Fixtures/web/user_context_anon.php
index 21737596..f874950f 100644
--- a/tests/Functional/Fixtures/web/user_context_anon.php
+++ b/tests/Functional/Fixtures/web/user_context_anon.php
@@ -16,11 +16,11 @@
 
 if (!isset($_COOKIE[0])) {
     header('X-HashTest: anonymous');
-    echo "anonymous";
-} elseif ($_COOKIE[0] == "foo") {
+    echo 'anonymous';
+} elseif ($_COOKIE[0] == 'foo') {
     header('X-HashTest: foo');
-    echo "foo";
+    echo 'foo';
 } else {
     header('X-HashTest: bar');
-    echo "bar";
+    echo 'bar';
 }
diff --git a/tests/Functional/NginxProxyClientTest.php b/tests/Functional/NginxProxyClientTest.php
index a760e55a..1387a267 100644
--- a/tests/Functional/NginxProxyClientTest.php
+++ b/tests/Functional/NginxProxyClientTest.php
@@ -17,7 +17,7 @@
  * @group webserver
  * @group nginx
  */
-class NginxTest extends NginxTestCase
+class NginxProxyClientTest extends NginxTestCase
 {
     public function testPurgeSeparateLocationPath()
     {
diff --git a/tests/Functional/SymfonyProxyClientTest.php b/tests/Functional/SymfonyProxyClientTest.php
index d4561a20..2e798b8c 100644
--- a/tests/Functional/SymfonyProxyClientTest.php
+++ b/tests/Functional/SymfonyProxyClientTest.php
@@ -52,7 +52,7 @@ public function testPurgeContentType()
 
     public function testPurgeHost()
     {
-        $symfony = new Symfony(array('http://127.0.0.1:' . $this->getCachingProxyPort()), null, null, array('purge_method' => 'NOTIFY'));
+        $symfony = new Symfony(array('http://127.0.0.1:'.$this->getCachingProxyPort()), null, null, array('purge_method' => 'NOTIFY'));
 
         $this->getResponse('/symfony.php/cache');
 
diff --git a/tests/Functional/Varnish/UserContextCacheTest.php b/tests/Functional/Varnish/UserContextCacheTest.php
index a7865e5e..267862ef 100644
--- a/tests/Functional/Varnish/UserContextCacheTest.php
+++ b/tests/Functional/Varnish/UserContextCacheTest.php
@@ -28,7 +28,7 @@ protected function getConfigFile()
     }
 
     /**
-     * {@inheritDoc}
+     * {@inheritdoc}
      */
     protected function assertContextCache($status)
     {
diff --git a/tests/Functional/Varnish/UserContextFailureTest.php b/tests/Functional/Varnish/UserContextFailureTest.php
index 085f7bde..40395b28 100644
--- a/tests/Functional/Varnish/UserContextFailureTest.php
+++ b/tests/Functional/Varnish/UserContextFailureTest.php
@@ -44,7 +44,7 @@ public function testUserContextNoExposeHash()
                 array('cookies' => array('miam'))
             );
 
-            $this->fail("Request should have failed with a 400 response.\n\n" . $response->getRawHeaders() . "\n" . $response->getBody(true));
+            $this->fail("Request should have failed with a 400 response.\n\n".$response->getRawHeaders()."\n".$response->getBody(true));
         } catch (ClientErrorResponseException $e) {
             $this->assertEquals(400, $e->getResponse()->getStatusCode());
             $this->assertFalse($e->getResponse()->hasHeader('X-User-Context-Hash'));
@@ -63,7 +63,7 @@ public function testUserContextNoForgedHash()
                 array('cookies' => array('miam'))
             );
 
-            $this->fail("Request should have failed with a 400 response.\n\n" . $response->getRawHeaders() . "\n" . $response->getBody(true));
+            $this->fail("Request should have failed with a 400 response.\n\n".$response->getRawHeaders()."\n".$response->getBody(true));
         } catch (ClientErrorResponseException $e) {
             $this->assertEquals(400, $e->getResponse()->getStatusCode());
         }
@@ -92,7 +92,7 @@ public function testHashRequestFailure()
         try {
             $response = $this->getResponse('/user_context.php', array(), array('cookies' => array('foo')));
 
-            $this->fail("Request should have failed with a 500 response.\n\n" . $response->getRawHeaders() . "\n" . $response->getBody(true));
+            $this->fail("Request should have failed with a 500 response.\n\n".$response->getRawHeaders()."\n".$response->getBody(true));
         } catch (ServerErrorResponseException $e) {
             $this->assertEquals(503, $e->getResponse()->getStatusCode());
         }
diff --git a/tests/Functional/Varnish/UserContextNocacheTest.php b/tests/Functional/Varnish/UserContextNocacheTest.php
index 5cfb1be3..77942ffe 100644
--- a/tests/Functional/Varnish/UserContextNocacheTest.php
+++ b/tests/Functional/Varnish/UserContextNocacheTest.php
@@ -28,7 +28,7 @@ protected function getConfigFile()
     }
 
     /**
-     * {@inheritDoc}
+     * {@inheritdoc}
      */
     protected function assertContextCache($status)
     {
diff --git a/tests/Functional/Varnish/UserContextTestCase.php b/tests/Functional/Varnish/UserContextTestCase.php
index 8f5d7e94..4097e83e 100644
--- a/tests/Functional/Varnish/UserContextTestCase.php
+++ b/tests/Functional/Varnish/UserContextTestCase.php
@@ -99,7 +99,6 @@ public function testAcceptHeader()
             array('cookies' => array('foo'))
         );
         $this->assertEquals('foo', $response1->getBody(true));
-
     }
 
     public function testUserContextUnauthorized()
diff --git a/tests/Functional/Varnish/VarnishProxyClientTest.php b/tests/Functional/Varnish/VarnishProxyClientTest.php
index b6a80e2b..7328e634 100644
--- a/tests/Functional/Varnish/VarnishProxyClientTest.php
+++ b/tests/Functional/Varnish/VarnishProxyClientTest.php
@@ -104,7 +104,7 @@ public function testPurgeContentType()
 
     public function testPurgeHost()
     {
-        $varnish = new Varnish(array('http://127.0.0.1:' . $this->getProxy()->getPort()));
+        $varnish = new Varnish(array('http://127.0.0.1:'.$this->getProxy()->getPort()));
 
         $this->getResponse('/cache.php');
 
diff --git a/tests/Functional/WebServerListener.php b/tests/Functional/WebServerListener.php
index dc9a5f9b..06ac077b 100644
--- a/tests/Functional/WebServerListener.php
+++ b/tests/Functional/WebServerListener.php
@@ -12,7 +12,7 @@
 namespace FOS\HttpCache\Tests\Functional;
 
 /**
- * A PHPUnit test listener that starts and stops the PHP built-in web server
+ * A PHPUnit test listener that starts and stops the PHP built-in web server.
  *
  * This listener is configured with a couple of constants from the phpunit.xml
  * file. To define constants in the phpunit file, use this syntax:
@@ -27,7 +27,7 @@
 class WebServerListener implements \PHPUnit_Framework_TestListener
 {
     /**
-     * PHP web server PID
+     * PHP web server PID.
      *
      * @var int
      */
@@ -35,7 +35,7 @@ class WebServerListener implements \PHPUnit_Framework_TestListener
 
     /**
      * Make sure the PHP built-in web server is running for tests with group
-     * 'webserver'
+     * 'webserver'.
      */
     public function startTestSuite(\PHPUnit_Framework_TestSuite $suite)
     {
@@ -52,24 +52,47 @@ public function startTestSuite(\PHPUnit_Framework_TestSuite $suite)
         $this->pid = $pid = $this->startPhpWebServer();
 
         register_shutdown_function(function () use ($pid) {
-            exec('kill ' . $pid);
+            exec('kill '.$pid);
         });
     }
 
     /**
-     *  We don't need these
+     *  We don't need these.
      */
-    public function endTestSuite(\PHPUnit_Framework_TestSuite $suite) {}
-    public function addError(\PHPUnit_Framework_Test $test, \Exception $e, $time) {}
-    public function addFailure(\PHPUnit_Framework_Test $test, \PHPUnit_Framework_AssertionFailedError $e, $time) {}
-    public function addIncompleteTest(\PHPUnit_Framework_Test $test, \Exception $e, $time) {}
-    public function addSkippedTest(\PHPUnit_Framework_Test $test, \Exception $e, $time) {}
-    public function startTest(\PHPUnit_Framework_Test $test) {}
-    public function endTest(\PHPUnit_Framework_Test $test, $time) {}
-    public function addRiskyTest(\PHPUnit_Framework_Test $test, \Exception $e, $time) {}
+    public function endTestSuite(\PHPUnit_Framework_TestSuite $suite)
+    {
+    }
+
+    public function addError(\PHPUnit_Framework_Test $test, \Exception $e, $time)
+    {
+    }
+
+    public function addFailure(\PHPUnit_Framework_Test $test, \PHPUnit_Framework_AssertionFailedError $e, $time)
+    {
+    }
+
+    public function addIncompleteTest(\PHPUnit_Framework_Test $test, \Exception $e, $time)
+    {
+    }
+
+    public function addSkippedTest(\PHPUnit_Framework_Test $test, \Exception $e, $time)
+    {
+    }
+
+    public function startTest(\PHPUnit_Framework_Test $test)
+    {
+    }
+
+    public function endTest(\PHPUnit_Framework_Test $test, $time)
+    {
+    }
+
+    public function addRiskyTest(\PHPUnit_Framework_Test $test, \Exception $e, $time)
+    {
+    }
 
     /**
-     * Get web server hostname
+     * Get web server hostname.
      *
      * @throws \Exception
      *
@@ -85,7 +108,7 @@ protected function getHostName()
     }
 
     /**
-     * Get web server port
+     * Get web server port.
      *
      * @throws \Exception
      *
@@ -101,7 +124,7 @@ protected function getPort()
     }
 
     /**
-     * Get web server port
+     * Get web server port.
      *
      * @throws \Exception
      *
@@ -117,7 +140,7 @@ protected function getDocRoot()
     }
 
     /**
-     * Start PHP built-in web server
+     * Start PHP built-in web server.
      *
      * @return int PID
      */
@@ -137,7 +160,7 @@ protected function startPhpWebServer()
     }
 
     /**
-     * Wait for caching proxy to be started up and reachable
+     * Wait for caching proxy to be started up and reachable.
      *
      * @param string $ip
      * @param int    $port
@@ -147,7 +170,7 @@ protected function startPhpWebServer()
      */
     protected function waitFor($ip, $port, $timeout)
     {
-        for ($i = 0; $i < $timeout; $i++) {
+        for ($i = 0; $i < $timeout; ++$i) {
             if (@fsockopen($ip, $port)) {
                 return;
             }
@@ -157,7 +180,7 @@ protected function waitFor($ip, $port, $timeout)
 
         $client = new \Guzzle\Http\Client();
         $url = sprintf('http://%s:%d/cache.php', $this->getHostName(), $this->getPort());
-        for (; $i < $timeout; $i++) {
+        for (; $i < $timeout; ++$i) {
             try {
                 if ($client->get($url)->send()->isSuccessful()) {
                     return;
diff --git a/tests/Unit/CacheInvalidatorTest.php b/tests/Unit/CacheInvalidatorTest.php
index 876e1c43..67037286 100644
--- a/tests/Unit/CacheInvalidatorTest.php
+++ b/tests/Unit/CacheInvalidatorTest.php
@@ -18,7 +18,6 @@
 use FOS\HttpCache\Exception\ProxyUnreachableException;
 use FOS\HttpCache\Exception\UnsupportedProxyOperationException;
 use FOS\HttpCache\ProxyClient\Varnish;
-use \Mockery;
 use Symfony\Component\EventDispatcher\EventDispatcher;
 
 class CacheInvalidatorTest extends \PHPUnit_Framework_TestCase
@@ -185,7 +184,7 @@ public function testMethodException()
     public function testProxyClientExceptionsAreLogged()
     {
         $unreachableException = ProxyUnreachableException::proxyUnreachable('http://127.0.0.1', 'Couldn\'t connect to host');
-        $responseException    = ProxyResponseException::proxyResponse('http://127.0.0.1', 403, 'Forbidden');
+        $responseException = ProxyResponseException::proxyResponse('http://127.0.0.1', 403, 'Forbidden');
 
         $exceptions = new ExceptionCollection();
         $exceptions->add($unreachableException)->add($responseException);
@@ -202,7 +201,7 @@ public function testProxyClientExceptionsAreLogged()
                 'critical',
                 'Request to caching proxy at http://127.0.0.1 failed with message "Couldn\'t connect to host"',
                 array(
-                    'exception' => $unreachableException
+                    'exception' => $unreachableException,
                 )
             )
             ->shouldReceive('log')->once()
diff --git a/tests/Unit/ProxyClient/AbstractProxyClientTest.php b/tests/Unit/ProxyClient/AbstractProxyClientTest.php
index 8b356729..6d1bfe91 100644
--- a/tests/Unit/ProxyClient/AbstractProxyClientTest.php
+++ b/tests/Unit/ProxyClient/AbstractProxyClientTest.php
@@ -20,7 +20,7 @@
 use Guzzle\Plugin\Mock\MockPlugin;
 use Guzzle\Http\Message\Response;
 use Guzzle\Http\Message\Request;
-use \Mockery;
+use Mockery;
 
 /**
  * Testing the base methods of the proxy client, using the Varnish client as concrete class.
@@ -65,6 +65,7 @@ public function curlExceptionProvider()
 
         $curlException = new CurlException('curl');
         $curlException->setRequest(new Request('GET', '/'));
+
         return array(
             array($curlException, '\FOS\HttpCache\Exception\ProxyUnreachableException'),
             array($requestException, '\FOS\HttpCache\Exception\ProxyResponseException'),
@@ -206,7 +207,7 @@ public function testFlushCountSuccess()
             ->with(
                 \Mockery::on(
                     function ($requests) use ($self) {
-                        /** @type Request[] $requests */
+                        /* @type Request[] $requests */
                         $self->assertCount(4, $requests);
                         foreach ($requests as $request) {
                             $self->assertEquals('PURGE', $request->getMethod());
@@ -238,7 +239,7 @@ public function testEliminateDuplicates()
             ->with(
                 \Mockery::on(
                     function ($requests) use ($self) {
-                        /** @type Request[] $requests */
+                        /* @type Request[] $requests */
                         $self->assertCount(4, $requests);
                         foreach ($requests as $request) {
                             $self->assertEquals('PURGE', $request->getMethod());
@@ -263,7 +264,6 @@ function ($requests) use ($self) {
         );
     }
 
-
     protected function setUp()
     {
         $this->mock = new MockPlugin();
diff --git a/tests/Unit/ProxyClient/SymfonyTest.php b/tests/Unit/ProxyClient/SymfonyTest.php
index 2fe4d726..8313f65d 100644
--- a/tests/Unit/ProxyClient/SymfonyTest.php
+++ b/tests/Unit/ProxyClient/SymfonyTest.php
@@ -11,17 +11,11 @@
 
 namespace FOS\HttpCache\Tests\Unit\ProxyClient;
 
-use FOS\HttpCache\Exception\ExceptionCollection;
 use FOS\HttpCache\ProxyClient\Symfony;
-use FOS\HttpCache\ProxyClient\Varnish;
 use Guzzle\Http\Client;
-use Guzzle\Http\Exception\CurlException;
-use Guzzle\Http\Exception\MultiTransferException;
-use Guzzle\Http\Exception\RequestException;
 use Guzzle\Plugin\Mock\MockPlugin;
 use Guzzle\Http\Message\Response;
 use Guzzle\Http\Message\Request;
-use \Mockery;
 
 class SymfonyTest extends \PHPUnit_Framework_TestCase
 {
@@ -41,7 +35,7 @@ public function testPurge()
             ->with(
                 \Mockery::on(
                     function ($requests) use ($self) {
-                        /** @type Request[] $requests */
+                        /* @type Request[] $requests */
                         $self->assertCount(4, $requests);
                         foreach ($requests as $request) {
                             $self->assertEquals('PURGE', $request->getMethod());
diff --git a/tests/Unit/ProxyClient/VarnishTest.php b/tests/Unit/ProxyClient/VarnishTest.php
index 92c4def0..d1fa7783 100644
--- a/tests/Unit/ProxyClient/VarnishTest.php
+++ b/tests/Unit/ProxyClient/VarnishTest.php
@@ -11,16 +11,11 @@
 
 namespace FOS\HttpCache\Tests\Unit\ProxyClient;
 
-use FOS\HttpCache\Exception\ExceptionCollection;
 use FOS\HttpCache\ProxyClient\Varnish;
 use Guzzle\Http\Client;
-use Guzzle\Http\Exception\CurlException;
-use Guzzle\Http\Exception\MultiTransferException;
-use Guzzle\Http\Exception\RequestException;
 use Guzzle\Plugin\Mock\MockPlugin;
 use Guzzle\Http\Message\Response;
 use Guzzle\Http\Message\Request;
-use \Mockery;
 
 class VarnishTest extends \PHPUnit_Framework_TestCase
 {
@@ -120,7 +115,7 @@ public function testPurge()
             ->with(
                 \Mockery::on(
                     function ($requests) use ($self) {
-                        /** @type Request[] $requests */
+                        /* @type Request[] $requests */
                         $self->assertCount(4, $requests);
                         foreach ($requests as $request) {
                             $self->assertEquals('PURGE', $request->getMethod());
diff --git a/tests/Unit/SymfonyCache/EventDispatchingHttpCacheTest.php b/tests/Unit/SymfonyCache/EventDispatchingHttpCacheTest.php
index 6660961a..690bd2c0 100644
--- a/tests/Unit/SymfonyCache/EventDispatchingHttpCacheTest.php
+++ b/tests/Unit/SymfonyCache/EventDispatchingHttpCacheTest.php
@@ -28,7 +28,7 @@ protected function getHttpCachePartialMock(array $mockedMethods = null)
     {
         $mock = $this
             ->getMockBuilder('\FOS\HttpCache\SymfonyCache\EventDispatchingHttpCache')
-            ->setMethods( $mockedMethods )
+            ->setMethods($mockedMethods)
             ->disableOriginalConstructor()
             ->getMock()
         ;
@@ -37,7 +37,7 @@ protected function getHttpCachePartialMock(array $mockedMethods = null)
         $options = array(
             'debug' => false,
             'default_ttl' => 0,
-            'private_headers' => array( 'Authorization', 'Cookie' ),
+            'private_headers' => array('Authorization', 'Cookie'),
             'allow_reload' => false,
             'allow_revalidate' => false,
             'stale_while_revalidate' => 2,
@@ -51,7 +51,7 @@ protected function getHttpCachePartialMock(array $mockedMethods = null)
         } else {
             $refOptions = $refHttpCache->getProperty('options');
             $refOptions->setAccessible(true);
-            $refOptions->setValue($mock, $options );
+            $refOptions->setValue($mock, $options);
         }
 
         return $mock;
@@ -163,7 +163,7 @@ public static function getSubscribedEvents()
     {
         return array(
             Events::PRE_HANDLE => 'preHandle',
-            Events::PRE_INVALIDATE => 'preInvalidate'
+            Events::PRE_INVALIDATE => 'preInvalidate',
         );
     }
 
@@ -174,7 +174,7 @@ public function preHandle(CacheEvent $event)
         if ($this->handleResponse) {
             $event->setResponse($this->handleResponse);
         }
-        $this->handleHits++;
+        ++$this->handleHits;
     }
 
     public function preInvalidate(CacheEvent $event)
@@ -184,6 +184,6 @@ public function preInvalidate(CacheEvent $event)
         if ($this->invalidateResponse) {
             $event->setResponse($this->invalidateResponse);
         }
-        $this->invalidateHits++;
+        ++$this->invalidateHits;
     }
 }
diff --git a/tests/Unit/SymfonyCache/UserContextSubscriberTest.php b/tests/Unit/SymfonyCache/UserContextSubscriberTest.php
index be50d502..e8618a8e 100644
--- a/tests/Unit/SymfonyCache/UserContextSubscriberTest.php
+++ b/tests/Unit/SymfonyCache/UserContextSubscriberTest.php
@@ -51,11 +51,11 @@ public function provideConfigOptions()
             'user_hash_header' => 'test/header',
             'user_hash_accept_header' => 'test accept',
             'anonymous_hash' => 'test hash',
-        );;
+        );
 
         return array(
             array(array(), $options),
-            array($custom, $custom + $options)
+            array($custom, $custom + $options),
         );
     }
 
@@ -127,7 +127,7 @@ public function testUserHashUserWithSession($arg, $options)
         $cookies = array(
             'PHPSESSID' => $sessionId1,
             'PHPSESSIDsdiuhsdf4535d4f' => $sessionId2,
-            'foo' => 'bar'
+            'foo' => 'bar',
         );
         $cookieString = "PHPSESSID=$sessionId1; foo=bar; PHPSESSIDsdiuhsdf4535d4f=$sessionId2";
         $request = Request::create('/foo', 'GET', array(), $cookies, array(), array('Cookie' => $cookieString));
@@ -148,7 +148,7 @@ public function testUserHashUserWithSession($arg, $options)
         $hashResponse = $this->getMockBuilder('\Symfony\Component\HttpFoundation\Response')
             ->setMethods(array('prepare'))
             ->getMock();
-        $hashResponse->headers->set($options['user_hash_header'], $expectedContextHash );
+        $hashResponse->headers->set($options['user_hash_header'], $expectedContextHash);
 
         $that = $this;
         $this->kernel
@@ -198,7 +198,7 @@ public function testUserHashUserWithAuthorizationHeader($arg, $options)
 
         $expectedContextHash = 'my_generated_hash';
         $hashResponse = new Response();
-        $hashResponse->headers->set($options['user_hash_header'], $expectedContextHash );
+        $hashResponse->headers->set($options['user_hash_header'], $expectedContextHash);
 
         $that = $this;
         $this->kernel
diff --git a/tests/Unit/Test/PHPUnit/AbstractCacheConstraintTest.php b/tests/Unit/Test/PHPUnit/AbstractCacheConstraintTest.php
index 5dc5290b..50f8295d 100644
--- a/tests/Unit/Test/PHPUnit/AbstractCacheConstraintTest.php
+++ b/tests/Unit/Test/PHPUnit/AbstractCacheConstraintTest.php
@@ -1,5 +1,14 @@
 <?php
 
+/*
+ * This file is part of the FOSHttpCache package.
+ *
+ * (c) FriendsOfSymfony <http://friendsofsymfony.github.com/>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace FOS\HttpCache\Tests\Unit\Test\PHPUnit;
 
 abstract class AbstractCacheConstraintTest extends \PHPUnit_Framework_TestCase
diff --git a/tests/Unit/UserContext/UserContextTest.php b/tests/Unit/UserContext/UserContextTest.php
index e90c91be..4d9c4246 100644
--- a/tests/Unit/UserContext/UserContextTest.php
+++ b/tests/Unit/UserContext/UserContextTest.php
@@ -34,7 +34,7 @@ public function testSetParameters()
         $userContext->addParameter('authenticated', true);
         $userContext->setParameters(array(
             'roles' => array('ROLE_USER'),
-            'foo' => 'bar'
+            'foo' => 'bar',
         ));
 
         $this->assertFalse($userContext->hasParameter('authenticated'));
diff --git a/tests/bootstrap.php b/tests/bootstrap.php
index 4445933d..24fcbce4 100644
--- a/tests/bootstrap.php
+++ b/tests/bootstrap.php
@@ -11,7 +11,7 @@
 
 $file = __DIR__.'/../vendor/autoload.php';
 if (!file_exists($file)) {
-    throw new RuntimeException("Install dependencies using composer to run the test suite.");
+    throw new RuntimeException('Install dependencies using composer to run the test suite.');
 }
 
 if (!defined('VARNISH_FILE')) {