middleman/features/step_definitions/middleman_steps.rb

Given /^"([^\"]*)" feature is "([^\"]*)"$/ do |feature, state|
  if state == "enabled"
    Middleman::Server.activate(feature.to_sym)
  end
  @browser = Rack::Test::Session.new(Rack::MockSession.new(Middleman::Server.new))
end

Given /^the Server is running$/ do
  @browser = Rack::Test::Session.new(Rack::MockSession.new(Middleman::Server.new))
end

When /^I go to "([^\"]*)"$/ do |url|
  @browser.get(url)
end

Then /^I should see "([^\"]*)"$/ do |expected|
  @browser.last_response.body.should include(expected)
end
Then /^I should see '([^\']*)'$/ do |expected|
  @browser.last_response.body.should include(expected)
end

Then /^I should not see "([^\"]*)"$/ do |expected|
  @browser.last_response.body.should_not include(expected)
end

Then /^I should see "([^\"]*)" lines$/ do |lines|
  @browser.last_response.body.chomp.split($/).length.should == lines.to_i
end