engine/features/step_definitions/api_steps.rb

def api_base_url
  '/locomotive/api'
end

def do_api_request(type, url, param_string = nil)
  begin
    params = param_string && JSON.parse(param_string) || {}
    @raw_response = do_request(type, api_base_url, url, params)
    @response = JSON.parse(@raw_response.body)
  rescue Exception
    @error = $!
  end
end

Given /^I have an? "([^"]*)" token$/ do |role|
  @membership = Locomotive::Site.first.memberships.where(:role => role.downcase).first \
    || FactoryGirl.create(role.downcase.to_sym, :site => Locomotive::Site.first)

  login_params = {
    :email => @membership.account.email,
    :password => 'easyone'
  }
  response = do_request('POST', api_base_url, 'tokens.json', login_params)

  if response.status == 200
    @token = JSON.parse(response.body)['token']
  else
    raise JSON.parse(response.body)['message']
  end

  add_default_params(:auth_token => @token)
end

When /^I do an API (\w+) (?:request )?to ([\w.\/]+)$/ do |request_type, url|
  do_api_request(request_type, url)
end

When /^I do an API (\w+) (?:request )?to ([\w.\/]+) with:$/ do |request_type, url, param_string|
  do_api_request(request_type, url, param_string)
end

Then /^the JSON response should be the following:$/ do |json|
  @response.should == JSON.parse(json)
end

Then /^the JSON response should contain all pages$/ do
  page_ids_in_response = @response.collect { |page| page['id'].to_s }.sort
  all_page_ids = Locomotive::Page.all.collect { |page| page.id.to_s }.sort
  page_ids_in_response.should == all_page_ids
end

Then /^the JSON response should contain (\d+) pages$/ do |n|
  @response.count.should == n.to_i
end

Then /^the JSON response should be an access denied error$/ do
  @error.should_not be_nil
  @error.message.should == 'You are not authorized to access this page.'
end

Then /^the JSON response hash should contain:$/ do |json|
  sub_response = {}
  parsed_json = JSON.parse(json)
  parsed_json.each do |k, v|
    sub_response[k] = @response[k]
  end
  sub_response.should == parsed_json
end