jpurcell001/gist:5190514

## gistfile1.txt
require 'rubygems'
require 'bundler/setup'
Bundler.require

require "capybara"
require "capybara/poltergeist"

Capybara.register_driver :webkit do |app|
  Capybara::Webkit::Driver.new(app)
end

Capybara.register_driver :poltergeist do |app|
  Capybara::Poltergeist::Driver.new(app, debug: false)
end

html = DATA.read
app = proc { |env| [200, { "Content-Type" => "text/html" }, [html] ] }

def click_checkbox
  a = @sess.find(".a")
  @sess.within a.find(".b .c") do
    @sess.find_field('test').set(true)
  end
end

@sess = Capybara::Session.new(:poltergeist, app)
@sess.visit("/")

(1..100).each do |i|
  puts "Iteration #{i}"
  @sess.execute_script "fakeAjax(50)"
  click_checkbox
  @sess.has_checked_field?('test') or raise "Iteration #{i} failed"
end

__END__

<!doctype html>
<html>
  <head>
    <script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
    <script language="javascript">

      function fakeAjax(startDelay) {
        $("body").empty();
        window.setTimeout(function() {
          var $checkbox, $el = $("body"), insertionDelay;

          // Insert the elements that the capybara selectors find within
          "abc".split('').forEach(function(letter) {
            $el = $("<div />").addClass(letter).appendTo($el);
          });

          // Insert the element being searched for to click on
          $checkbox = $("<input type='checkbox' name='test' />").appendTo($el);

          // After a random amount of time, insert a box that shifts the y-position of
          // the input checkbox being searched for.
          insertionDelay = 10 + Math.floor(Math.random() * 10);
          window.setTimeout(function() {
            $("<div />").css("height", 100).insertBefore($checkbox);
          }, insertionDelay);

        }, startDelay);
      };

    </script>
  </head>
  <body />
</html>
	require 'rubygems'
	require 'bundler/setup'
	Bundler.require

	require "capybara"
	require "capybara/poltergeist"

	Capybara.register_driver :webkit do \|app\|
	Capybara::Webkit::Driver.new(app)
	end

	Capybara.register_driver :poltergeist do \|app\|
	Capybara::Poltergeist::Driver.new(app, debug: false)
	end

	html = DATA.read
	app = proc { \|env\| [200, { "Content-Type" => "text/html" }, [html] ] }

	def click_checkbox
	a = @sess.find(".a")
	@sess.within a.find(".b .c") do
	@sess.find_field('test').set(true)
	end
	end

	@sess = Capybara::Session.new(:poltergeist, app)
	@sess.visit("/")

	(1..100).each do \|i\|
	puts "Iteration #{i}"
	@sess.execute_script "fakeAjax(50)"
	click_checkbox
	@sess.has_checked_field?('test') or raise "Iteration #{i} failed"
	end

	__END__

	<!doctype html>
	<html>
	<head>
	<script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
	<script language="javascript">

	function fakeAjax(startDelay) {
	$("body").empty();
	window.setTimeout(function() {
	var $checkbox, $el = $("body"), insertionDelay;

	// Insert the elements that the capybara selectors find within
	"abc".split('').forEach(function(letter) {
	$el = $("<div />").addClass(letter).appendTo($el);
	});

	// Insert the element being searched for to click on
	$checkbox = $("<input type='checkbox' name='test' />").appendTo($el);

	// After a random amount of time, insert a box that shifts the y-position of
	// the input checkbox being searched for.
	insertionDelay = 10 + Math.floor(Math.random() * 10);
	window.setTimeout(function() {
	$("<div />").css("height", 100).insertBefore($checkbox);
	}, insertionDelay);

	}, startDelay);
	};

	</script>
	</head>
	<body />
	</html>