code: @Test public void testExpandWildcardWithMultipleResources(){
    final WroModel model=new WroModel();
    final String uri=String.format(ClasspathUriLocator.PREFIX + "%s/expander/*.js",WroUtil.toPackageAsFolder(getClass()));
    model.addGroup(new Group("group").addResource(Resource.create(uri,ResourceType.JS)));
    Mockito.when(decoratedFactory.create()).thenReturn(model);
    final WroModel changedModel=transformer.transform(model);
    LOG.debug("model: {}",changedModel);
    Assert.assertEquals(3,changedModel.getGroupByName("group").getResources().size());
  }
  