add method Gitlab\Api\MergeRequests::getByIid

Author: Артур Комаров

lib/Gitlab/Api/MergeRequests.php

@@ -174,4 +174,14 @@ public function changes($project_id, $mr_id)
     {
         return $this->get($this->getProjectPath($project_id, 'merge_request/'.$this->encodePath($mr_id).'/changes'));
     }
+
+    /**
+     * @param $project_id
+     * @param $mr_iid
+     * @return mixed
+     */
+    public function getByIid($project_id, $mr_iid)
+    {
+        return $this->get($this->getProjectPath($project_id, 'merge_requests'), array('iid' => $mr_iid));
+    }
 }

test/Gitlab/Tests/Api/MergeRequestsTest.php

@@ -316,6 +316,23 @@ public function shouldGetMergeRequestChanges()
         $this->assertEquals($expectedArray, $api->changes(1, 2));
     }
 
+    /**
+     * @test
+     */
+    public function shouldGetMergeRequestByIid()
+    {
+        $expectedArray = array('id' => 1, 'title' => 'A merge request');
+
+        $api = $this->getApiMock();
+        $api->expects($this->once())
+            ->method('get')
+            ->with('projects/1/merge_requests', array('iid' => 2))
+            ->will($this->returnValue($expectedArray))
+        ;
+
+        $this->assertEquals($expectedArray, $api->getByIid(1, 2));
+    }
+
     protected function getMultipleMergeRequestsData()
     {
         return array(