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// main.js

PageMod({
  onAttach: function(worker) {
    worker.addEventListener("message", function(event){
      if (event.origin === "good.com") // page script
        event.source.postMessage(event.data + " addon!", "good.com");
      else if(event.origin === worker.origin) // content script
        event.source.postMessage("content script, hello!", worker.origin);
    });

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let cm = require("sdk/context-menu");

let item = cm.Item({
  label: "My Menu Item",
  context: cm.SelectionContext()
});

require("sdk/selection").on("select", function(){
  item.label = this.text
})

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var proto = Element.prototype;
var slice = Function.call.bind(Array.prototype.slice);
var matches = Function.call.bind(proto.matchesSelector || 
                proto.mozMatchesSelector || proto.webkitMatchesSelector ||
                proto.msMatchesSelector || proto.oMatchesSelector);

// Returns true if a DOM Element matches a cssRule
var elementMatchCSSRule = function(element, cssRule) {
  return matches(element, cssRule.selectorText);
};

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let { Button } = require("sdk/ui");

let button = Button({
  id: "my-button",
  // assuming automatically `data` folder for "./"
  image: "./beer.png",
  // required as tooltip and overflow
  label: "My Button",
  type: "checked"
});

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diff --git a/lib/sdk/deprecated/unit-test-finder.js b/lib/sdk/deprecated/unit-test-finder.js
index 0d13265..c2268d5 100644
--- a/lib/sdk/deprecated/unit-test-finder.js
+++ b/lib/sdk/deprecated/unit-test-finder.js
@@ -55,8 +55,20 @@ TestFinder.prototype = {
       function(suite) {
         // Load each test file as a main module in its own loader instance
         // `suite` is defined by cuddlefish/manifest.py:ManifestBuilder.build
-        var loader = Loader(module);
-        var module = cuddlefish.main(loader, suite);

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/* Open a plain dialog */

const { getActiveTab, setTabURL } = require('sdk/tabs/utils');
const { open } = require('sdk/window/helpers');

const { data } = require('sdk/self');
const url = data.url('foo.html');

open("", {
  features: {

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// add `contentType` to page-mod:
// https://bugzilla.mozilla.org/show_bug.cgi?id=788224

// current API:


// all the http/https urls
PageMod({
  include: '*', // can take string
  contentScript: 'console.log("hello")'

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let { events: windowEvents } = require('sdk/window/events');

let { on } = require('sdk/event/core');
let { filter } = require('sdk/event/utils');

let ready = filter(windowEvents, ({type}) => type === 'DOMContentLoaded');
let certificateWindows = filter(ready, ({target}) =>
  target.document.documentElement.mozMatchesSelector('dialog#certDetails'));

on(certificateWindows, 'data', ({target: window}) => {

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const { ActionButton } = require("sdk/ui/button/action");
const { browserWindows } =  require("sdk/windows");

let button = ActionButton({
    id: "reverse-tabs",
    label: "Reverse Tab Order",
    icon: {
      // The new APIs use "./" as shortcut for data folder, you don't need
      // to require `self` for that purpose.
      "16": "./16.png",

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const { window: { document } } = require('sdk/addon/window');
const { getTabContentWindow, getActiveTab } = require('sdk/tabs/utils');
const { getMostRecentBrowserWindow } = require('sdk/window/utils');

const canvas = document.createElementNS('http://www.w3.org/1999/xhtml', 'canvas');
document.documentElement.appendChild(canvas);

function captureActiveTab() {
  let contentWindow = getTabContentWindow(getActiveTab(getMostRecentBrowserWindow()));