[rspec-users] how to write complex matchers

[David Chelimsky]

On Thu, Feb 12, 2009 at 5:52 AM, Yury Kotlyarov <yura at brainhouse.ru> wrote:
> Hi,
>
> I am trying to write custom matcher which accepts block to spec views with
> forms/fieldsets/inputs eg
>
> view:
> ---
> <form action='/users'>
>  <fieldset>
>   <legend>Personal Information</legend>
>   <ol>
>     <li>
>       <label>First name</label>
>       <input type="text" name="user[first_name]" />
>     </li>
>     ...
>   </ol>
>  </fieldset>
> </form>
>
> spec:
> ---
>
> it "should have form with input fields" do
>  render ...
>  response.should have_form(users_path) do
>   with_field_set 'Personal Information' do
>     with_text_field 'First name', 'user[first_name]'
>     ...
>   end
>  end
> end
>
> matches? of have_form:
> ---
>
>   def matches?(response, &block)
>     @block = block if block
>     response.should @scope.have_tag('form[action=?]', @action) do
>       @block.call.matches?(response)
>     end
>   end matches? of have_field_set: ---
>
>   def matches?(response, &block)
>
>     @block = block if block
>     response.should @scope.with_tag('fieldset') do
>       @scope.with_tag('legend', @legend) if @legend
>       @scope.with_tag('ol') do
>         @block.call.matches?(response)
>       end
>     end
>   end but I get: NoMethodError in '/users/new should have form with input
> fields' undefined method `matches?' for true:TrueClass
> ./spec/views/users/../../custom_ui_matchers/with_field_set.rb:10:in
> `matches?' ./spec/views/users/../../custom_ui_matchers/have_form.rb:11:in
> `matches?' ./spec/views/users/../../custom_ui_matchers/have_form.rb:10:in
> `matches?' ./spec/views/users/new.html.haml_spec.rb:17:
> /usr/lib64/ruby/1.8/timeout.rb:53:in `timeout' something wrong with yielding
> block? Gist: http://gist.github.com/62562 Thanks in advance, Yury

What does initialize look like?