Re: [rspec-users] how to write nested XPath matchers

[Phlip]

The same error message for a stray nil:

This attempt, calling simple_matcher directly, gives nearly the same nil:

  def be_xml_with_(&block)
    waz_xdoc = @xdoc
    simple_matcher 'yo' do |given, matcher|
      wrap_expectation matcher do
        assert_xhtml given  #  this works
        block.call  #  crashes with a nil.first error!
      end
    end
  ensure
    @xdoc = waz_xdoc
  end

  it 'should have xpathic tags' do
    render '/users/new'

    response.body.should be_xml_with{  #  error points to this line
      xpath :form, :action => '/users'

So why no stack trace so I can diagnose this?

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