final FileExtensionsService service = model.property( TestModel.PROP_FILE_PATH_4 ).service( FileExtensionsService.class );
assertNotNull( service );
model.setLossyCompression( true );
assertEquals( list( "jpeg" ), service.extensions() );
model.setLossyCompression( false );
assertEquals( list( "png", "gif" ), service.extensions() );
}