rspec users - May 2009 - Why won't my simple controller spec pass?

I have been trying to spec a Rails Controller for the first time,
having just completed my first View spec.

Having hit a wall trying to spec a controller for my own application,
I have tried to get an example in beta of The RSpec Book to work. I am
however experiencing the same failures. I would appreciate any
pointers on where I am going wrong.

Here is the failure:

1)
Spec::Mocks::MockExpectationError in ''MessagesController POST create
should build a new message''
<Message (class)> expected :new with ({"body"=>"a quick
brown fox"})
once, but received it 0 times
./spec/controllers/messages_controller_spec.rb:7:
script/spec:10:

Here is the controller spec:

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

describe MessagesController, "POST create" do

  it "should build a new message" do
    message=mock_model(Message)
    Message.should_receive(:new).with("body" => "a quick brown
fox").and_return(message)
    post :create, :message => {"body" => "a quick brown
fox"}
  end

  it "should save the message"

end

Here is the controller:

class MessagesController < ApplicationController
  def create
    message = Message.new params[:message]
  end
end

And here is the (mocked) model:

class Message
end

***

As an aside, I already have an implemented model that I''d like to use
in my controller spec. In this case, should I be using stub_model() to
make use of it e.g.:

context = stub_model(Context)

Also the constructor expects a name to be passed in so can I write:

Context.should_receive(:new).with("name" =>
"fred").and_return
(message)
post :create, :context => {"name" => "fred"}

And then in the controller ''create'' method:

Context.new params[:context]

I did try this but received an error from my model and trace
suggesting that the "name" was not being supplied.

Thanks.

I have now managed to get the example to run as expected from The
RSpec Book.

I would appreciate pointers on the following though:
> As an aside, I already have an implemented model that I''d like to
use
> in my controller spec. In this case, should I be using stub_model() to
> make use of it e.g.:
>
> context = stub_model(Context)
>
> Also the constructor expects a name to be passed in so can I write:
>
> Context.should_receive(:new).with("name" =>
"fred").and_return
> (message)
> post :create, :context => {"name" => "fred"}
>
> And then in the controller ''create'' method:
>
> Context.new params[:context]


On 15 May, 07:28, Lee <Lee.Longm... at googlemail.com>
wrote:
> I have been trying to spec a Rails Controller for the first time,
> having just completed my first View spec.
>
> Having hit a wall trying to spec a controller for my own application,
> I have tried to get an example in beta of The RSpec Book to work. I am
> however experiencing the same failures. I would appreciate any
> pointers on where I am going wrong.
>
> Here is the failure:
>
> 1)
> Spec::Mocks::MockExpectationError in ''MessagesController POST
create
> should build a new message''
> <Message (class)> expected :new with ({"body"=>"a
quick brown fox"})
> once, but received it 0 times
> ./spec/controllers/messages_controller_spec.rb:7:
> script/spec:10:
>
> Here is the controller spec:
>
> require File.expand_path(File.dirname(__FILE__) +
''/../spec_helper'')
>
> describe MessagesController, "POST create" do
>
> ? it "should build a new message" do
> ? ? message=mock_model(Message)
> ? ? Message.should_receive(:new).with("body" => "a quick
brown
> fox").and_return(message)
> ? ? post :create, :message => {"body" => "a quick
brown fox"}
> ? end
>
> ? it "should save the message"
>
> end
>
> Here is the controller:
>
> class MessagesController < ApplicationController
> ? def create
> ? ? message = Message.new params[:message]
> ? end
> end
>
> And here is the (mocked) model:
>
> class Message
> end
>
> ***
>
> As an aside, I already have an implemented model that I''d like to
use
> in my controller spec. In this case, should I be using stub_model() to
> make use of it e.g.:
>
> context = stub_model(Context)
>
> Also the constructor expects a name to be passed in so can I write:
>
> Context.should_receive(:new).with("name" =>
"fred").and_return
> (message)
> post :create, :context => {"name" => "fred"}
>
> And then in the controller ''create'' method:
>
> Context.new params[:context]
>
> I did try this but received an error from my model and trace
> suggesting that the "name" was not being supplied.
>
> Thanks.
> _______________________________________________
> rspec-users mailing list
> rspec-us... at
rubyforge.orghttp://rubyforge.org/mailman/listinfo/rspec-users