use_layout_custom_matcher.rb

# custom matchers to expect layouts
Spec::Matchers.define :use_layout do |layout| 
  match do |response| 
    response.layout == layout
  end 
  failure_message_for_should do |employee| 
    "expected response to use layout named #{layout}" 
  end 
  failure_message_for_should_not do |employee| 
    "expected response to not use layout named #{layout}" 
  end 
  description do 
    "expected response to use layout named #{layout}" 
  end 
end