public function testEditMediaInstance()
 {
     $fileTmp = dirname(__DIR__) . '/sample/Italy.png';
     $this->initializeMock($fileTmp);
     $this->fileManagerMock->expects($this->once())->method('deleteFile')->with('MyLink')->willReturn(true);
     $lang = 'EN-en';
     $instanceUri = 'http://myFancyDomain.com/myGreatInstanceUri';
     $instance = new \core_kernel_classes_Class($instanceUri);
     $instance->setPropertyValue(new \core_kernel_classes_Property(MEDIA_LINK), 'MyLink');
     $this->mediaService->editMediaInstance($fileTmp, $instanceUri, $lang);
     $this->assertEquals($lang, $instance->getUniquePropertyValue(new \core_kernel_classes_Property(MEDIA_LANGUAGE)), 'The instance language is wrong');
     // remove what has been done
     $inst = new \core_kernel_classes_Resource($instanceUri);
     $inst->delete();
 }