added test

Author: clxmstaab

lib/Github/Api/Deployment.php

@@ -77,6 +77,8 @@ public function create($username, $repository, array $params)
      * @param string $username   the user who owns the repo
      * @param string $repository the name of the repo
      * @param int    $id         the id of the deployment
+     * 
+     * @return mixed null on success, array on error with 'message'
      */
     public function remove($username, $repository, $id)
     {

test/Github/Tests/Api/DeploymentTest.php

@@ -51,7 +51,7 @@ public function shouldGetAllDeploymentsWithFilterParameters()
     /**
      * @test
      */
-    public function shouldShowProject()
+    public function shouldShowDeployment()
     {
         $expectedValue = ['id' => 123, 'ref' => 'master'];
 
@@ -64,6 +64,20 @@ public function shouldShowProject()
         $this->assertEquals($expectedValue, $api->show('KnpLabs', 'php-github-api', 123));
     }
 
+    /**
+     * @test
+     */
+    public function shouldDeleteDeployment()
+    {
+        $api = $this->getApiMock();
+        $api->expects($this->once())
+            ->method('delete')
+            ->with('/repos/KnpLabs/php-github-api/deployments/123')
+            ->will($this->returnValue(null));
+
+        $this->assertNull($api->remove('KnpLabs', 'php-github-api', 123));
+    }
+
     /**
      * @test
      */
@@ -111,4 +125,4 @@ protected function getApiClass()
     {
         return \Github\Api\Deployment::class;
     }
-}
+}