rspec users - Jul 2011 - How to write render expectation in Controller Spec?

Hello All,
I am a rspec beginner and I am trying to find a way out to write
render expectation in controller spec.I used the following ways
render ''/channels/createchannel.html.erb''
view.should_receive(:render).with(:action => "createchannel")
ChannelsController.expect_render(:action => "createchannel")
ChannelsController.render_template(:action => "createchannel")
controller.expect_render(:action => "createchannel")
controller.render_template(:action => "createchannel")

All fail giving a NoMethodError

**********************************************************************************
My spec is as follows

require File.dirname(__FILE__) + ''/../spec_helper''

describe ChannelsController do
  it "should re-direct to create channel" do
    Channel.stub!(:checkChannel?).and_return(1)
    ChannelsController.expect_render(:action => "createchannel")

    #view.should_receive(:render).with(:action => "createchannel")
    #render ''/channels/createchannel.html.erb''
  end


end
**********************************************************************************


Can anyone please let me know how this can be fixed.?


Thanks & Regards
Chandrika

On Jul 12, 2011, at 4:36 AM, Chandu80 wrote:
> Hello All,
> I am a rspec beginner
Welcome!
> and I am trying to find a way out to write
> render expectation in controller spec. I used the following ways
> render ''/channels/createchannel.html.erb''
> view.should_receive(:render).with(:action => "createchannel")
> ChannelsController.expect_render(:action => "createchannel")
> ChannelsController.render_template(:action => "createchannel")
> controller.expect_render(:action => "createchannel")
> controller.render_template(:action => "createchannel")
> 
> All fail giving a NoMethodError
> 
>
**********************************************************************************
> My spec is as follows
> 
> require File.dirname(__FILE__) + ''/../spec_helper''
> 
> describe ChannelsController do
>  it "should re-direct to create channel" do
>    Channel.stub!(:checkChannel?).and_return(1)
>    ChannelsController.expect_render(:action =>
"createchannel")
> 
>    #view.should_receive(:render).with(:action =>
"createchannel")
>    #render ''/channels/createchannel.html.erb''
>  end
> 
> 
> end
>
**********************************************************************************
> 
> 
> Can anyone please let me know how this can be fixed.?
Please always include the versions of Rails and RSpec that you are using when
asking for help. Things are different in different versions. I''m going
to assume you''re using rails-3 and rspec-rails-2.

The name of the example begins with "should re-direct ...". The rails
testing framework lets you assert that a specific template is rendered or that
there is a redirect, but not both in the same action.

You also have to invoke an action on the controller in each example for anything
to happen. e.g.

  describe "POST create" do
    describe "with valid params" do
      it "redirects to the created channel" do
        post :create, :channel => valid_attributes
        response.should redirect_to(Channel.last)
      end
    end

    describe "with invalid params" do
      it "re-renders the ''new'' template" do
        Channel.any_instance.stub(:save).and_return(false)
        post :create, :channel => {}
        response.should render_template("new")
      end
    end
  end

Take a look at the generated controller spec when you run ''rails
generate scaffold ...'': https://gist.github.com/942203. If that
doesn''t make sense, feel free to ask questions.

HTH,
David
> Thanks & Regards
> Chandrika

Thanks David...I am using jRuby on Rails1.5.0 and following are the
details of gems:-
rails-2.3.5
rspec-1.3.0
rspec-rails-1.3.2

My script needs to test the create channel method based on a condition
given by checkChannel? which I have stubbed as true.If true it should
render the action createchannel.
As mentioned above I used response.should
render_template("createchannel").It gave me the following error

NoMethodError in ''ChannelsController should re-direct to create
channel''
undefined method `response'' for
#<ActiveSupport::TestCase::Subclass_1:0x14b2263>

When I removed all statements and kept only post :createchannel in the
if block,it gave me

NoMethodError in ''ChannelsController should render the
createchannelpage''
undefined method `post'' for
#<ActiveSupport::TestCase::Subclass_1:0x1f5205c>

Is there any gem that needs to be installed that would make this work
and if yes is it compatible with jRuby on Rails?


Regards
Chandrika

On Jul 12, 3:59?pm, David Chelimsky <dchelim... at gmail.com>
wrote:
> On Jul 12, 2011, at 4:36 AM, Chandu80 wrote:
>
> > Hello All,
> > I am a rspec beginner
>
> Welcome!
>
>
>
> > and I am trying to find a way out to write
> > render expectation in controller spec. I used the following ways
> > render ''/channels/createchannel.html.erb''
> > view.should_receive(:render).with(:action =>
"createchannel")
> > ChannelsController.expect_render(:action =>
"createchannel")
> > ChannelsController.render_template(:action =>
"createchannel")
> > controller.expect_render(:action => "createchannel")
> > controller.render_template(:action => "createchannel")
>
> > All fail giving a NoMethodError
>
> >
**********************************************************************************
> > My spec is as follows
>
> > require File.dirname(__FILE__) + ''/../spec_helper''
>
> > describe ChannelsController do
> > ?it "should re-direct to create channel" do
> > ? ?Channel.stub!(:checkChannel?).and_return(1)
> > ? ?ChannelsController.expect_render(:action =>
"createchannel")
>
> > ? ?#view.should_receive(:render).with(:action =>
"createchannel")
> > ? ?#render ''/channels/createchannel.html.erb''
> > ?end
>
> > end
> >
**********************************************************************************
>
> > Can anyone please let me know how this can be fixed.?
>
> Please always include the versions of Rails and RSpec that you are using
when asking for help. Things are different in different versions. I''m
going to assume you''re using rails-3 and rspec-rails-2.
>
> The name of the example begins with "should re-direct ...". The
rails testing framework lets you assert that a specific template is rendered or
that there is a redirect, but not both in the same action.
>
> You also have to invoke an action on the controller in each example for
anything to happen. e.g.
>
> ? describe "POST create" do
> ? ? describe "with valid params" do
> ? ? ? it "redirects to the created channel" do
> ? ? ? ? post :create, :channel => valid_attributes
> ? ? ? ? response.should redirect_to(Channel.last)
> ? ? ? end
> ? ? end
>
> ? ? describe "with invalid params" do
> ? ? ? it "re-renders the ''new'' template" do
> ? ? ? ? Channel.any_instance.stub(:save).and_return(false)
> ? ? ? ? post :create, :channel => {}
> ? ? ? ? response.should render_template("new")
> ? ? ? end
> ? ? end
> ? end
>
> Take a look at the generated controller spec when you run ''rails
generate scaffold ...'':https://gist.github.com/942203. If that
doesn''t make sense, feel free to ask questions.
>
> HTH,
> David
>
> > Thanks & Regards
> > Chandrika
>
> _______________________________________________
> rspec-users mailing list
> rspec-us... at
rubyforge.orghttp://rubyforge.org/mailman/listinfo/rspec-users