rspec users - Jan 2011 - Rspec Nested Resources: Can someone offer an 'update' example?

Hi folks,

I''ve just spent a day trying to write up a basic update spec for a
nested resource - all without avail. I''m quite new to RSpec & not
sure
what I''m doing wrong. I can''t seem to get a stub that
recognises the
required association to the parent object. I''ve tried factories and
outright database calls, none of which seem to catch the
should_receive. If anyone could offer a basic example of the nested
equivalent of something like the following, I''d be very appreciative.

        it "updates the requested post" do
          Post.stub(:find).with("14") { mock_post }
         
mock_post.should_receive(:update_attributes).with({''these''
=> ''params''})
          put :update, :id => "14", :post =>
{''these'' => ''params''}
        end

Controller action here:

  def update
    @comment = Comment.find(params[:id])
    respond_to do |format|
      if @comment.update_attributes(params[:comment])
        flash[:notice] = ''Post successfully updated''
        format.html { redirect_to(@comment.post) }
        format.xml  { head :ok }
      else
        format.html { render :action => "edit" }
        format.xml  { render :xml => @comment.errors, :status
=> :unprocessable_entity }
      end
    end

  end

On Jan 13, 2011, at 3:53 PM, SpringChicken wrote:
> Hi folks,
> 
> I''ve just spent a day trying to write up a basic update spec for a
> nested resource - all without avail. I''m quite new to RSpec &
not sure
> what I''m doing wrong. I can''t seem to get a stub that
recognises the
> required association to the parent object. I''ve tried factories
and
> outright database calls, none of which seem to catch the
> should_receive. If anyone could offer a basic example of the nested
> equivalent of something like the following, I''d be very
appreciative.
> 
>        it "updates the requested post" do
>          Post.stub(:find).with("14") { mock_post }
>         
mock_post.should_receive(:update_attributes).with({''these''
> => ''params''})
>          put :update, :id => "14", :post =>
{''these'' => ''params''}
>        end
> 
> Controller action here:
> 
>  def update
>    @comment = Comment.find(params[:id])
>    respond_to do |format|
>      if @comment.update_attributes(params[:comment])
>        flash[:notice] = ''Post successfully updated''
>        format.html { redirect_to(@comment.post) }
>        format.xml  { head :ok }
>      else
>        format.html { render :action => "edit" }
>        format.xml  { render :xml => @comment.errors, :status
> => :unprocessable_entity }
>      end
>    end
> 
>  end
That looks like it should work. What''s the failure message
you''re getting?

Hi,

On Fri, Jan 14, 2011 at 05:53, SpringChicken
<anonymousleggingsgenie at gmail.com> wrote:
> I''ve just spent a day trying to write up a basic update spec for a
> nested resource - all without avail. I''m quite new to RSpec &
not sure
> what I''m doing wrong. I can''t seem to get a stub that
recognises the
> required association to the parent object. I''ve tried factories
and
> outright database calls, none of which seem to catch the
> should_receive. If anyone could offer a basic example of the nested
> equivalent of something like the following, I''d be very
appreciative.
>
> ? ? ? ?it "updates the requested post" do
> ? ? ? ? ?Post.stub(:find).with("14") { mock_post }
> ? ? ? ?
?mock_post.should_receive(:update_attributes).with({''these''
> => ''params''})
> ? ? ? ? ?put :update, :id => "14", :post =>
{''these'' => ''params''}
> ? ? ? ?end
>
> Controller action here:
>
> ?def update
> ? ?@comment = Comment.find(params[:id])
> ? ?respond_to do |format|
> ? ? ?if @comment.update_attributes(params[:comment])
> ? ? ? ?flash[:notice] = ''Post successfully updated''
> ? ? ? ?format.html { redirect_to(@comment.post) }
> ? ? ? ?format.xml ?{ head :ok }
> ? ? ?else
> ? ? ? ?format.html { render :action => "edit" }
> ? ? ? ?format.xml ?{ render :xml => @comment.errors, :status
> => :unprocessable_entity }
> ? ? ?end
> ? ?end
>
> ?end
In your spec you are stubbing Post so that Post.find(14) returns
mock_post. Then you pass 14 as the :id parameter to the update action.

In the update action, you use the :id parameter to find a *Comment*
not a Post. So, mock_post is never actually used and the
should_receive is thus never triggered.

Mike