Rails - May 2009 - rspec to xhr

when i want to test an ajax action, it always can''t passed. The action
code
is:

  # POST /posts/:id/comments
  def create
    @comment = @post.comments.build(params[:comment])

    if @comment.save
      flash[:notice] = ''Comment was successfully created.''
      render :update do |page|
        page.insert_html :bottom, ''comments'', :partial =>
''posts/comment'',
:object => @comment
        page.replace_html ''comment'', :partial =>
''comment'', :object =>
Comment.new
      end
    else
      render :update do |page|
        page.replace_html ''comment'', :partial =>
''comment'', :object =>
@comment
      end
    end
  end

and the test code is:

  describe "handling POST /posts/:id/comments" do

    before(:each) do
      @post = Post.new
      @comment = Comment.new
      Post.stubs(:find).returns(@post)
      @post.comments.stubs(:build).returns(@comment)
    end

    it "with successful save" do
      @comment.expects(:save).returns(true)
      xhr :post, :create, :post_id => @post.id, :comment => {}
      response.should have_rjs(:insert_html, :bottom,
''comments'')
      response.should have_rjs(:replace_html, ''comment'')
    end

    it "with failed save" do
      @comment.expects(:save).returns(false)
      xhr :post, :create, :post_id => @post.id, :comment => {}
      response.should have_rjs(:replace_html, ''comment'')
    end
  end

The result is:
1)
''CommentsController handling DELETE /comments/:id with successful
destroy''
FAILED
No RJS statement that removes ''comment_'' was rendered.
./spec/controllers/comments_controller_spec.rb:38:

2)
''CommentsController handling POST /posts/:id/comments with successful
save''
FAILED
bottom.
./spec/controllers/comments_controller_spec.rb:16:

But I can do it successfully by browser. So I think there''s something
wrong
with my rspec codes. Can anyone help me? Thanks in advanced.


Best Regard,
Richard

-- 
My home: http://www.huangzhimin.com

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