diff --git a/tests/phpunit/LinksUpdateHookHandlerTest.php b/tests/phpunit/LinksUpdateHookHandlerTest.php
index 40bda08..e25e8bd 100644
--- a/tests/phpunit/LinksUpdateHookHandlerTest.php
+++ b/tests/phpunit/LinksUpdateHookHandlerTest.php
@@ -6,6 +6,7 @@ use PageImages\Hooks\LinksUpdateHookHandler;
 use PageImages;
 use ParserOutput;
 use PHPUnit_Framework_TestCase;
+use RepoGroup;
 
 /**
  * @covers PageImages\Hooks\LinksUpdateHookHandler
@@ -17,6 +18,12 @@ use PHPUnit_Framework_TestCase;
  */
 class LinksUpdateHookHandlerTest extends PHPUnit_Framework_TestCase {
 
+	public function tearDown() {
+		// remove mock added in testGetMetadata()
+		RepoGroup::destroySingleton();
+		parent::tearDown();
+	}
+
 	public function testOnLinksUpdate() {
 		$parserOutput = new ParserOutput();
 		$parserOutput->setExtensionData( 'pageImages', array(
@@ -35,4 +42,36 @@ class LinksUpdateHookHandlerTest extends PHPUnit_Framework_TestCase {
 		$this->assertSame( 'A.jpg', $linksUpdate->mProperties[PageImages::PROP_NAME] );
 	}
 
+	public function testGetMetadata() {
+		$file = $this->getMockBuilder( 'File' )
+			->disableOriginalConstructor()
+			->getMock();
+		// ugly hack to avoid all the unmockable crap in FormatMetadata
+		$file->expects( $this->any() )
+			->method( 'isDeleted' )
+			->will( $this->returnValue( true ) );
+
+		$mockRepoGroup = $this->getMockBuilder( 'RepoGroup' )
+			->disableOriginalConstructor()
+			->getMock();
+		$mockRepoGroup->expects( $this->any() )
+			->method( 'findFile' )
+			->will( $this->returnValue( $file ) );
+		RepoGroup::setSingleton( $mockRepoGroup );
+
+		$parserOutput = new ParserOutput();
+		$parserOutput->setExtensionData( 'pageImages', array(
+			array( 'filename' => 'A.jpg', 'fullwidth' => 100, 'fullheight' => 50 ),
+		) );
+
+		$linksUpdate = $this->getMockBuilder( 'LinksUpdate' )
+			->disableOriginalConstructor()
+			->getMock();
+		$linksUpdate->expects( $this->any() )
+			->method( 'getParserOutput' )
+			->will( $this->returnValue( $parserOutput ) );
+
+		LinksUpdateHookHandler::onLinksUpdate( $linksUpdate );
+		$this->assertTrue( true, 'no errors in getMetadata' );
+	}
 }