Handle decrement method.

CONTRIBUTING.md

@@ -8,12 +8,12 @@ If you want to learn more about our opinion on open source, you can read the [OS
 
 The features available for now are only those we need, but you're welcome to open an issue or pull-request if you need more.
 
-To ensure good code quality, we use our awesome tool "[coke](https://github.com/M6Web/Coke)" to check there is no coding standards violations. 
+To ensure good code quality, we use our awesome tool "[coke](https://github.com/M6Web/Coke)" to check there is no coding standards violations.
 We use [Symfony2 coding standards](https://github.com/M6Web/Symfony2-coding-standard).
 
 To execute coke, you need to install dependencies in dev mode
 ```bash
-composer install --dev
+composer install
 ```
 
 And you can launch coke
@@ -27,12 +27,12 @@ This bundle is tested with [atoum](https://github.com/atoum/atoum).
 
 To launch tests, you need to install dependencies in dev mode
 ```bash
-composer install --dev
+composer install
 ```
 
 And you can now launch tests
 ```bash
-./vendor/bin/atoum
+bin/atoum
 ```
 
 ## Pull-request

src/Client/Client.php

@@ -104,6 +104,8 @@ public function handleEvent($event, $name = null)
             // increment
             if ('increment' === $conf) {
                 $this->increment($this->replaceConfigPlaceholder($event, $name, $confValue), 1, $tags);
+            } elseif ('decrement' === $conf) {
+                $this->decrement($this->replaceConfigPlaceholder($event, $name, $confValue), 1, $tags);
             } elseif ('count' === $conf) {
                 $value = $this->getEventValue($event, 'getValue');
                 $this->count($this->replaceConfigPlaceholder($event, $name, $confValue), $value, 1, $tags);
@@ -202,7 +204,7 @@ private function replaceConfigPlaceholder($event, $eventName, $string)
      *
      * @param mixed $event
      * @param array $config
-     * 
+     *
      * @return array of tags
      */
     private function mergeTags($event, $config)

src/DependencyInjection/Configuration.php

@@ -70,6 +70,7 @@ private function addClientsSection($rootNode)
                                 ->prototype('array')
                                     ->children()
                                         ->scalarNode('increment')->end()
+                                        ->scalarNode('decrement')->end()
                                         ->scalarNode('count')->end()
                                         ->scalarNode('gauge')->end()
                                         ->scalarNode('set')->end()

src/Tests/Units/Client/Client.php

@@ -20,6 +20,7 @@ protected function getMockedClient()
     {
         $this->mockGenerator->orphanize('__construct');
         $this->mockGenerator->orphanize('increment');
+        $this->mockGenerator->orphanize('decrement');
         $this->mockGenerator->orphanize('timing');
         $client = new \mock\M6Web\Bundle\StatsdBundle\Client\Client();
         $client->clearToSend();
@@ -51,6 +52,29 @@ public function testHandleEventWithValidConfigIncrement()
 
     }
 
+    /**
+     * testHandleEventWithValidConfig
+     */
+    public function testHandleEventWithValidConfigDecrement()
+    {
+        $client = $this->getMockedClient();
+
+        $event = new \Symfony\Component\EventDispatcher\Event();
+
+        $client->addEventToListen('test', array(
+            'decrement' => 'stats.<name>'
+        ));
+
+        $this->if($client->handleEvent($event, 'test'))
+            ->then
+            ->mock($client)
+                ->call('decrement')
+                    ->withArguments('stats.test')
+                    ->once()
+                ->call('send')
+                    ->never();
+    }
+
     /**
      * testHandleEventWithImmediateSend
      */