问无法使save_and_open_page在rspec中用于拼写错误的项目

EN

    describe 'merge action' do

  before do
    @article_for_merging = Factory(:article)
    @article_for_merging.body = 'something we will merge'
  end

  it 'should merge articles' do
    get :merge, 'id' => @article.id, 'merge_with' =>  @article_for_merging.id
    response.should render_template('new')
    assigns(:article).should_not be_nil
    assigns(:article).should be_valid
    response.should contain(/body/)
    response.should contain(/extended content/)
    save_and_open_page
    debugger
    response.should have_field('article[body]',:with => @article.body + @article_for_merging.body)
    response.should have_selector('form#merge input#merge_with')
    response.should have_selector('form#merge input#merge')
  end
end