adding update method for Groups

Author: dariuskt

lib/Gitlab/Api/Groups.php

@@ -54,6 +54,16 @@ public function create($name, $path, $description = null, $visibility_level = 0)
         ));
     }
 
+    /**
+     * @param int $id
+     * @param array $params
+     * @return mixed
+     */
+    public function update($id, array $params)
+    {
+        return $this->put('groups/'.$this->encodePath($id), $params);
+    }
+
     /**
      * @param int $group_id
      * @return mixed

test/Gitlab/Tests/Api/GroupsTest.php

@@ -135,6 +135,23 @@ public function shouldCreateGroupWithDescriptionAndVisLevel()
         $this->assertEquals($expectedArray, $api->create('A new group', 'a-new-group', 'Description', 2));
     }
 
+    /**
+     * @test
+     */
+    public function shouldUpdateGroup()
+    {
+        $expectedArray = array('id' => 3, 'name' => 'Group name', 'path' => 'group-path');
+
+        $api = $this->getApiMock();
+        $api->expects($this->once())
+            ->method('put')
+            ->with('groups/3', array('name' => 'Group name', 'path' => 'group-path'))
+            ->will($this->returnValue($expectedArray))
+        ;
+
+        $this->assertEquals($expectedArray, $api->update(3, array('name' => 'Group name', 'path' => 'group-path')));
+    }
+
     /**
      * @test
      */