Add test, code style

Author: drumm

lib/Gitlab/Api/Repositories.php

@@ -181,9 +181,9 @@ public function commit($project_id, $sha)
      * @param $sha
      * @return mixed
      */
-    public function commitrefs($project_id, $sha)
+    public function commitRefs($project_id, $sha)
     {
-        return $this->get($this->getProjectPath($project_id, 'repository/commits/'.$this->encodePath($sha) . '/refs'));
+        return $this->get($this->getProjectPath($project_id, 'repository/commits/'.$this->encodePath($sha).'/refs'));
     }
 
     /**

test/Gitlab/Tests/Api/RepositoriesTest.php

@@ -302,6 +302,26 @@ public function shouldGetCommit()
         $this->assertEquals($expectedArray, $api->commit(1, 'abcd1234'));
     }
 
+    /**
+     * @test
+     */
+    public function shouldGetCommitRefs()
+    {
+        $expectedArray = [
+            ['type' => 'branch', 'name' => 'master'],
+            ['type' => 'tag', 'name' => 'v1.1.0'],
+        ];
+
+        $api = $this->getApiMock();
+        $api->expects($this->once())
+            ->method('get')
+            ->with('projects/1/repository/commits/abcd1234/refs')
+            ->will($this->returnValue($expectedArray))
+        ;
+
+        $this->assertEquals($expectedArray, $api->commitRefs(1, 'abcd1234'));
+    }
+
     /**
      * @test
      */