The Tor Browser: addon-sdk/source/test/test-selection.js@b8a032363ba2 (annotated)

addon-sdk/source/test/test-selection.js@b8a032363ba2 (annotated)

addon-sdk/source/test/test-selection.js

Thu, 22 Jan 2015 13:21:57 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Thu, 22 Jan 2015 13:21:57 +0100
branch: TOR_BUG_9701
changeset 15: b8a032363ba2
permissions: -rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 'use strict';
 module.metadata = {
   'engines': {
     'Firefox': '*'
   }
 };
 const HTML = "<html>\
   <body>\
     <div>foo</div>\
     <div>and</div>\
     <textarea>noodles</textarea>\
   </body>\
 </html>";
 const URL = "data:text/html;charset=utf-8," + encodeURIComponent(HTML);
 const FRAME_HTML = "<iframe src='" + URL + "'><iframe>";
 const FRAME_URL = "data:text/html;charset=utf-8," + encodeURIComponent(FRAME_HTML);
 const { defer } = require("sdk/core/promise");
 const tabs = require("sdk/tabs");
 const { setTabURL } = require("sdk/tabs/utils");
 const { getActiveTab, getTabContentWindow, closeTab } = require("sdk/tabs/utils")
 const { getMostRecentBrowserWindow } = require("sdk/window/utils");
 const { open: openNewWindow } = require("sdk/window/helpers");
 const { Loader } = require("sdk/test/loader");
 const { setTimeout } = require("sdk/timers");
 const { Cu } = require("chrome");
 const { merge } = require("sdk/util/object");
 const { isPrivate } = require("sdk/private-browsing");
 const events = require("sdk/system/events");
 // General purpose utility functions
 /**
  * Opens the url given and return a promise, that will be resolved with the
  * content window when the document is ready.
  *
  * I believe this approach could be useful in most of our unit test, that
  * requires to open a tab and need to access to its content.
  */
 function open(url, options) {
   let { promise, resolve } = defer();
   if (options && typeof(options) === "object") {
     openNewWindow("", {
       features: merge({ toolbar: true }, options)
     }).then(function(chromeWindow) {
       if (isPrivate(chromeWindow) !== !!options.private)
         throw new Error("Window should have Private set to " + !!options.private);
       let tab = getActiveTab(chromeWindow);
       tab.linkedBrowser.addEventListener("load", function ready(event) {
         let { document } = getTabContentWindow(tab);
         if (document.readyState === "complete" && document.URL === url) {
           this.removeEventListener(event.type, ready);
           resolve(document.defaultView);
         }
       }, true);
       setTabURL(tab, url);
     });
     return promise;
   };
   tabs.open({
     url: url,
     onReady: function(tab) {
       // Unfortunately there is no way to get a XUL Tab from SDK Tab on Firefox,
       // only on Fennec. We should implement `tabNS` also on Firefox in order
       // to have that.
       // Here we assuming that the most recent browser window is the one we're
       // doing the test, and the active tab is the one we just opened.
       let window = getTabContentWindow(getActiveTab(getMostRecentBrowserWindow()));
       resolve(window);
     }
   });
   return promise;
 };
 /**
  * Close the Active Tab
  */
 function close(window) {
   if (window && window.top && typeof(window.top).close === "function") {
     window.top.close();
   } else {
     // Here we assuming that the most recent browser window is the one we're
     // doing the test, and the active tab is the one we just opened.
     let tab = getActiveTab(getMostRecentBrowserWindow());
     closeTab(tab);
   }
 }
 /**
  * Reload the window given and return a promise, that will be resolved with the
  * content window after a small delay.
  */
 function reload(window) {
   let { promise, resolve } = defer();
   // Here we assuming that the most recent browser window is the one we're
   // doing the test, and the active tab is the one we just opened.
   let tab = tabs.activeTab;
   tab.once("ready", function () {
     resolve(window);
   });
   window.location.reload(true);
   return promise;
 }
 // Selection's unit test utility function
 /**
  * Returns the frame's window once the document is loaded
  */
 function getFrameWindow(window) {
   let { promise, resolve } = defer();
   let frame = window.frames[0];
   let { document } = frame;
   frame.focus();
   if (document.readyState === "complete")
     return frame;
   document.addEventListener("readystatechange", function readystate() {
     if (this.readyState === "complete") {
       this.removeEventListener("readystatechange", readystate);
       frame.focus();
       resolve(frame);
     }
   });
   return promise;
 }
 /**
  * Hide the frame in order to destroy the selection object, and show it again
  * after ~500 msec, to give time to attach the code on `document-shown`
  * notification.
  * In the process, call `Cu.forgeGC` to ensure that the `document-shown` code
  * is not garbaged.
  */
 function hideAndShowFrame(window) {
   let { promise, resolve } = defer();
   let iframe = window.document.querySelector("iframe");
   iframe.style.display = "none";
   Cu.schedulePreciseGC(function() {
     events.on("document-shown", function shown(event) {
       if (iframe.contentWindow !== event.subject.defaultView)
         return;
       events.off("document-shown", shown);
       setTimeout(resolve, 0, window);
     }, true);
     iframe.style.display = "";
   });
   return promise;
 }
 /**
  * Select the first div in the page, adding the range to the selection.
  */
 function selectFirstDiv(window) {
   let div = window.document.querySelector("div");
   let selection = window.getSelection();
   let range = window.document.createRange();
   if (selection.rangeCount > 0)
     selection.removeAllRanges();
   range.selectNode(div);
   selection.addRange(range);
   return window;
 }
 /**
  * Select all divs in the page, adding the ranges to the selection.
  */
 function selectAllDivs(window) {
   let divs = window.document.getElementsByTagName("div");
   let selection = window.getSelection();
   if (selection.rangeCount > 0)
     selection.removeAllRanges();
   for (let i = 0; i < divs.length; i++) {
     let range = window.document.createRange();
     range.selectNode(divs[i]);
     selection.addRange(range);
   }
   return window;
 }
 /**
  * Select the textarea content
  */
 function selectTextarea(window) {
   let selection = window.getSelection();
   let textarea = window.document.querySelector("textarea");
   if (selection.rangeCount > 0)
     selection.removeAllRanges();
   textarea.setSelectionRange(0, textarea.value.length);
   textarea.focus();
   return window;
 }
 /**
  * Select the content of the first div
  */
 function selectContentFirstDiv(window) {
   let div = window.document.querySelector("div");
   let selection = window.getSelection();
   let range = window.document.createRange();
   if (selection.rangeCount > 0)
     selection.removeAllRanges();
   range.selectNodeContents(div);
   selection.addRange(range);
   return window;
 }
 /**
  * Dispatch the selection event for the selection listener added by
  * `nsISelectionPrivate.addSelectionListener`
  */
 function dispatchSelectionEvent(window) {
   // We modify the selection in order to dispatch the selection's event, by
   // contract the selection by one character. So if the text selected is "foo"
   // will be "fo".
   window.getSelection().modify("extend", "backward", "character");
   return window;
 }
 /**
  * Dispatch the selection event for the selection listener added by
  * `window.onselect` / `window.addEventListener`
  */
 function dispatchOnSelectEvent(window) {
   let { document } = window;
   let textarea = document.querySelector("textarea");
   let event = document.createEvent("UIEvents");
   event.initUIEvent("select", true, true, window, 1);
   textarea.dispatchEvent(event);
   return window;
 }
 /**
  * Creates empty ranges and add them to selections
  */
 function createEmptySelections(window) {
   selectAllDivs(window);
   let selection = window.getSelection();
   for (let i = 0; i < selection.rangeCount; i++)
     selection.getRangeAt(i).collapse(true);
 }
 // Test cases
 exports["test No Selection"] = function(assert, done) {
   let loader = Loader(module);
   let selection = loader.require("sdk/selection");
   open(URL).then(function() {
     assert.equal(selection.isContiguous, false,
       "selection.isContiguous without selection works.");
     assert.strictEqual(selection.text, null,
       "selection.text without selection works.");
     assert.strictEqual(selection.html, null,
       "selection.html without selection works.");
     let selectionCount = 0;
     for each (let sel in selection)
       selectionCount++;
     assert.equal(selectionCount, 0,
       "No iterable selections");
   }).then(close).then(loader.unload).then(done, assert.fail);
 };
 exports["test Single DOM Selection"] = function(assert, done) {
   let loader = Loader(module);
   let selection = loader.require("sdk/selection");
   open(URL).then(selectFirstDiv).then(function() {
     assert.equal(selection.isContiguous, true,
       "selection.isContiguous with single DOM Selection works.");
     assert.equal(selection.text, "foo",
       "selection.text with single DOM Selection works.");
     assert.equal(selection.html, "<div>foo</div>",
       "selection.html with single DOM Selection works.");
     let selectionCount = 0;
     for each (let sel in selection) {
       selectionCount++;
       assert.equal(sel.text, "foo",
         "iterable selection.text with single DOM Selection works.");
       assert.equal(sel.html, "<div>foo</div>",
         "iterable selection.html with single DOM Selection works.");
     }
     assert.equal(selectionCount, 1,
       "One iterable selection");
   }).then(close).then(loader.unload).then(done, assert.fail);
 };
 exports["test Multiple DOM Selection"] = function(assert, done) {
   let loader = Loader(module);
   let selection = loader.require("sdk/selection");
   open(URL).then(selectAllDivs).then(function() {
     let expectedText = ["foo", "and"];
     let expectedHTML = ["<div>foo</div>", "<div>and</div>"];
     assert.equal(selection.isContiguous, false,
       "selection.isContiguous with multiple DOM Selection works.");
     assert.equal(selection.text, expectedText[0],
       "selection.text with multiple DOM Selection works.");
     assert.equal(selection.html, expectedHTML[0],
       "selection.html with multiple DOM Selection works.");
     let selectionCount = 0;
     for each (let sel in selection) {
       assert.equal(sel.text, expectedText[selectionCount],
         "iterable selection.text with multiple DOM Selection works.");
       assert.equal(sel.html, expectedHTML[selectionCount],
         "iterable selection.text with multiple DOM Selection works.");
       selectionCount++;
     }
     assert.equal(selectionCount, 2,
       "Two iterable selections");
   }).then(close).then(loader.unload).then(done, assert.fail);
 };
 exports["test Textarea Selection"] = function(assert, done) {
   let loader = Loader(module);
   let selection = loader.require("sdk/selection");
   open(URL).then(selectTextarea).then(function() {
     assert.equal(selection.isContiguous, true,
       "selection.isContiguous with Textarea Selection works.");
     assert.equal(selection.text, "noodles",
       "selection.text with Textarea Selection works.");
     assert.strictEqual(selection.html, null,
       "selection.html with Textarea Selection works.");
     let selectionCount = 0;
     for each (let sel in selection) {
       selectionCount++;
       assert.equal(sel.text, "noodles",
         "iterable selection.text with Textarea Selection works.");
       assert.strictEqual(sel.html, null,
         "iterable selection.html with Textarea Selection works.");
     }
     assert.equal(selectionCount, 1,
       "One iterable selection");
   }).then(close).then(loader.unload).then(done, assert.fail);
 };
 exports["test Set Text in Multiple DOM Selection"] = function(assert, done) {
   let loader = Loader(module);
   let selection = loader.require("sdk/selection");
   open(URL).then(selectAllDivs).then(function() {
     let expectedText = ["bar", "and"];
     let expectedHTML = ["bar", "<div>and</div>"];
     selection.text = "bar";
     assert.equal(selection.text, expectedText[0],
       "set selection.text with single DOM Selection works.");
     assert.equal(selection.html, expectedHTML[0],
       "selection.html with single DOM Selection works.");
     let selectionCount = 0;
     for each (let sel in selection) {
       assert.equal(sel.text, expectedText[selectionCount],
         "iterable selection.text with multiple DOM Selection works.");
       assert.equal(sel.html, expectedHTML[selectionCount],
         "iterable selection.html with multiple DOM Selection works.");
       selectionCount++;
     }
     assert.equal(selectionCount, 2,
       "Two iterable selections");
   }).then(close).then(loader.unload).then(done, assert.fail);
 };
 exports["test Set HTML in Multiple DOM Selection"] = function(assert, done) {
   let loader = Loader(module);
   let selection = loader.require("sdk/selection");
   open(URL).then(selectAllDivs).then(function() {
     let html = "<span>b<b>a</b>r</span>";
     let expectedText = ["bar", "and"];
     let expectedHTML = [html, "<div>and</div>"];
     selection.html = html;
     assert.equal(selection.text, expectedText[0],
       "set selection.text with DOM Selection works.");
     assert.equal(selection.html, expectedHTML[0],
       "selection.html with DOM Selection works.");
     let selectionCount = 0;
     for each (let sel in selection) {
       assert.equal(sel.text, expectedText[selectionCount],
         "iterable selection.text with multiple DOM Selection works.");
       assert.equal(sel.html, expectedHTML[selectionCount],
         "iterable selection.html with multiple DOM Selection works.");
       selectionCount++;
     }
     assert.equal(selectionCount, 2,
       "Two iterable selections");
   }).then(close).then(loader.unload).then(done, assert.fail);
 };
 exports["test Set HTML as text in Multiple DOM Selection"] = function(assert, done) {
   let loader = Loader(module);
   let selection = loader.require("sdk/selection");
   open(URL).then(selectAllDivs).then(function() {
     let text = "<span>b<b>a</b>r</span>";
     let html = "&lt;span&gt;b&lt;b&gt;a&lt;/b&gt;r&lt;/span&gt;";
     let expectedText = [text, "and"];
     let expectedHTML = [html, "<div>and</div>"];
     selection.text = text;
     assert.equal(selection.text, expectedText[0],
       "set selection.text with DOM Selection works.");
     assert.equal(selection.html, expectedHTML[0],
       "selection.html with DOM Selection works.");
     let selectionCount = 0;
     for each (let sel in selection) {
       assert.equal(sel.text, expectedText[selectionCount],
         "iterable selection.text with multiple DOM Selection works.");
       assert.equal(sel.html, expectedHTML[selectionCount],
         "iterable selection.html with multiple DOM Selection works.");
       selectionCount++;
     }
     assert.equal(selectionCount, 2,
       "Two iterable selections");
   }).then(close).then(loader.unload).then(done, assert.fail);
 };
 exports["test Set Text in Textarea Selection"] = function(assert, done) {
   let loader = Loader(module);
   let selection = loader.require("sdk/selection");
   open(URL).then(selectTextarea).then(function() {
     let text = "bar";
     selection.text = text;
     assert.equal(selection.text, text,
       "set selection.text with Textarea Selection works.");
     assert.strictEqual(selection.html, null,
       "selection.html with Textarea Selection works.");
     let selectionCount = 0;
     for each (let sel in selection) {
       selectionCount++;
       assert.equal(sel.text, text,
         "iterable selection.text with Textarea Selection works.");
       assert.strictEqual(sel.html, null,
         "iterable selection.html with Textarea Selection works.");
     }
     assert.equal(selectionCount, 1,
       "One iterable selection");
   }).then(close).then(loader.unload).then(done, assert.fail);
 };
 exports["test Set HTML in Textarea Selection"] = function(assert, done) {
   let loader = Loader(module);
   let selection = loader.require("sdk/selection");
   open(URL).then(selectTextarea).then(function() {
     let html = "<span>b<b>a</b>r</span>";
     // Textarea can't have HTML so set `html` property is equals to set `text`
     // property
     selection.html = html;
     assert.equal(selection.text, html,
       "set selection.text with Textarea Selection works.");
     assert.strictEqual(selection.html, null,
       "selection.html with Textarea Selection works.");
     let selectionCount = 0;
     for each (let sel in selection) {
       selectionCount++;
       assert.equal(sel.text, html,
         "iterable selection.text with Textarea Selection works.");
       assert.strictEqual(sel.html, null,
         "iterable selection.html with Textarea Selection works.");
     }
     assert.equal(selectionCount, 1,
       "One iterable selection");
   }).then(close).then(loader.unload).then(done, assert.fail);
 };
 exports["test Empty Selections"] = function(assert, done) {
   let loader = Loader(module);
   let selection = loader.require("sdk/selection");
   open(URL).then(createEmptySelections).then(function(){
     assert.equal(selection.isContiguous, false,
       "selection.isContiguous with empty selections works.");
     assert.strictEqual(selection.text, null,
       "selection.text with empty selections works.");
     assert.strictEqual(selection.html, null,
       "selection.html with empty selections works.");
     let selectionCount = 0;
     for each (let sel in selection)
       selectionCount++;
     assert.equal(selectionCount, 0,
       "No iterable selections");
   }).then(close).then(loader.unload).then(done, assert.fail);
 }
 exports["test No Selection Exception"] = function(assert, done) {
   const NO_SELECTION = /It isn't possible to change the selection/;
   let loader = Loader(module);
   let selection = loader.require("sdk/selection");
   open(URL).then(function() {
     // We're trying to change a selection when there is no selection
     assert.throws(function() {
       selection.text = "bar";
     }, NO_SELECTION);
     assert.throws(function() {
       selection.html = "bar";
     }, NO_SELECTION);
   }).then(close).then(loader.unload).then(done, assert.fail);
 };
 exports["test for...of without selections"] = function(assert, done) {
   let loader = Loader(module);
   let selection = loader.require("sdk/selection");
   open(URL).then(function() {
     let selectionCount = 0;
     for (let sel of selection)
       selectionCount++;
     assert.equal(selectionCount, 0,
       "No iterable selections");
   }).then(close).then(loader.unload).then(null, function(error) {
     // iterable are not supported yet in Firefox 16, for example, but
     // they are in Firefox 17.
     if (error.message.indexOf("is not iterable") > -1)
       assert.pass("`iterable` method not supported in this application");
     else
       assert.fail(error);
   }).then(done, assert.fail);
 }
 exports["test for...of with selections"] = function(assert, done) {
   let loader = Loader(module);
   let selection = loader.require("sdk/selection");
   open(URL).then(selectAllDivs).then(function(){
     let expectedText = ["foo", "and"];
     let expectedHTML = ["<div>foo</div>", "<div>and</div>"];
     let selectionCount = 0;
     for (let sel of selection) {
       assert.equal(sel.text, expectedText[selectionCount],
         "iterable selection.text with for...of works.");
       assert.equal(sel.html, expectedHTML[selectionCount],
         "iterable selection.text with for...of works.");
       selectionCount++;
     }
     assert.equal(selectionCount, 2,
       "Two iterable selections");
   }).then(close).then(loader.unload).then(null, function(error) {
     // iterable are not supported yet in Firefox 16, for example, but
     // they are in Firefox 17.
     if (error.message.indexOf("is not iterable") > -1)
       assert.pass("`iterable` method not supported in this application");
     else
       assert.fail(error);
   }).then(done, assert.fail)
 }
 exports["test Selection Listener"] = function(assert, done) {
   let loader = Loader(module);
   let selection = loader.require("sdk/selection");
   selection.once("select", function() {
     assert.equal(selection.text, "fo");
     done();
   });
   open(URL).then(selectContentFirstDiv).
     then(dispatchSelectionEvent).
     then(close).
     then(loader.unload, assert.fail);
 };
 exports["test Textarea OnSelect Listener"] = function(assert, done) {
   let loader = Loader(module);
   let selection = loader.require("sdk/selection");
   selection.once("select", function() {
     assert.equal(selection.text, "noodles");
     done();
   });
   open(URL).then(selectTextarea).
     then(dispatchOnSelectEvent).
     then(close).
     then(loader.unload, assert.fail);
 };
 exports["test Selection listener removed on unload"] = function(assert, done) {
   let loader = Loader(module);
   let selection = loader.require("sdk/selection");
   selection.once("select", function() {
     assert.fail("Shouldn't be never called");
   });
   loader.unload();
   assert.pass();
   open(URL).
     then(selectContentFirstDiv).
     then(dispatchSelectionEvent).
     then(close).
     then(done, assert.fail);
 };
 exports["test Textarea onSelect Listener removed on unload"] = function(assert, done) {
   let loader = Loader(module);
   let selection = loader.require("sdk/selection");
   selection.once("select", function() {
     assert.fail("Shouldn't be never called");
   });
   loader.unload();
   assert.pass();
   open(URL).
     then(selectTextarea).
     then(dispatchOnSelectEvent).
     then(close).
     then(done, assert.fail);
 };
 exports["test Selection Listener on existing document"] = function(assert, done) {
   let loader = Loader(module);
   open(URL).then(function(window){
     let selection = loader.require("sdk/selection");
     selection.once("select", function() {
       assert.equal(selection.text, "fo");
       done();
     });
     return window;
   }).then(selectContentFirstDiv).
     then(dispatchSelectionEvent).
     then(close).
     then(loader.unload, assert.fail);
 };
 exports["test Textarea OnSelect Listener on existing document"] = function(assert, done) {
   let loader = Loader(module);
   open(URL).then(function(window){
     let selection = loader.require("sdk/selection");
     selection.once("select", function() {
       assert.equal(selection.text, "noodles");
       done();
     });
     return window;
   }).then(selectTextarea).
     then(dispatchOnSelectEvent).
     then(close).
     then(loader.unload, assert.fail);
 };
 exports["test Selection Listener on document reload"] = function(assert, done) {
   let loader = Loader(module);
   let selection = loader.require("sdk/selection");
   selection.once("select", function() {
     assert.equal(selection.text, "fo");
     done();
   });
   open(URL).
     then(reload).
     then(selectContentFirstDiv).
     then(dispatchSelectionEvent).
     then(close).
     then(loader.unload, assert.fail);
 };
 exports["test Textarea OnSelect Listener on document reload"] = function(assert, done) {
   let loader = Loader(module);
   let selection = loader.require("sdk/selection");
   selection.once("select", function() {
     assert.equal(selection.text, "noodles");
     done();
   });
   open(URL).
     then(reload).
     then(selectTextarea).
     then(dispatchOnSelectEvent).
     then(close).
     then(loader.unload, assert.fail);
 };
 exports["test Selection Listener on frame"] = function(assert, done) {
   let loader = Loader(module);
   let selection = loader.require("sdk/selection");
   selection.once("select", function() {
     assert.equal(selection.text, "fo");
     close();
     loader.unload();
     done();
   });
   open(FRAME_URL).
     then(hideAndShowFrame).
     then(getFrameWindow).
     then(selectContentFirstDiv).
     then(dispatchSelectionEvent).
     then(null, assert.fail);
 };
 exports["test Textarea onSelect Listener on frame"] = function(assert, done) {
   let loader = Loader(module);
   let selection = loader.require("sdk/selection");
   selection.once("select", function() {
     assert.equal(selection.text, "noodles");
     close();
     loader.unload();
     done();
   });
   open(FRAME_URL).
     then(hideAndShowFrame).
     then(getFrameWindow).
     then(selectTextarea).
     then(dispatchOnSelectEvent).
     then(null, assert.fail);
 };
 exports["test PBPW Selection Listener"] = function(assert, done) {
   let loader = Loader(module);
   let selection = loader.require("sdk/selection");
   selection.once("select", function() {
     assert.fail("Shouldn't be never called");
   });
   assert.pass();
   open(URL, {private: true}).
     then(selectContentFirstDiv).
     then(dispatchSelectionEvent).
     then(close).
     then(loader.unload).
     then(done, assert.fail);
 };
 exports["test PBPW Textarea OnSelect Listener"] = function(assert, done) {
   let loader = Loader(module);
   let selection = loader.require("sdk/selection");
   selection.once("select", function() {
     assert.fail("Shouldn't be never called");
   });
   assert.pass();
   open(URL, {private: true}).
     then(selectTextarea).
     then(dispatchOnSelectEvent).
     then(close).
     then(loader.unload).
     then(done, assert.fail);
 };
 exports["test PBPW Single DOM Selection"] = function(assert, done) {
   let loader = Loader(module);
   let selection = loader.require("sdk/selection");
   open(URL, {private: true}).then(selectFirstDiv).then(function(window) {
     assert.equal(selection.isContiguous, false,
       "selection.isContiguous with single DOM Selection in PBPW works.");
     assert.equal(selection.text, null,
       "selection.text with single DOM Selection in PBPW works.");
     assert.equal(selection.html, null,
       "selection.html with single DOM Selection in PBPW works.");
     let selectionCount = 0;
     for each (let sel in selection)
       selectionCount++;
     assert.equal(selectionCount, 0,
       "No iterable selection in PBPW");
     return window;
   }).then(close).then(loader.unload).then(done, assert.fail);
 };
 exports["test PBPW Textarea Selection"] = function(assert, done) {
   let loader = Loader(module);
   let selection = loader.require("sdk/selection");
   open(URL, {private: true}).then(selectTextarea).then(function(window) {
     assert.equal(selection.isContiguous, false,
       "selection.isContiguous with Textarea Selection in PBPW works.");
     assert.equal(selection.text, null,
       "selection.text with Textarea Selection in PBPW works.");
     assert.strictEqual(selection.html, null,
       "selection.html with Textarea Selection in PBPW works.");
     let selectionCount = 0;
     for each (let sel in selection) {
       selectionCount++;
       assert.equal(sel.text, null,
         "iterable selection.text with Textarea Selection in PBPW works.");
       assert.strictEqual(sel.html, null,
         "iterable selection.html with Textarea Selection in PBPW works.");
     }
     assert.equal(selectionCount, 0,
       "No iterable selection in PBPW");
     return window;
   }).then(close).then(loader.unload).then(done, assert.fail);
 };
 // TODO: test Selection Listener on long-held connection (Bug 661884)
 //
 //  I didn't find a way to do so with httpd, using `processAsync` I'm able to
 //  Keep the connection but not to flush the buffer to the client in two steps,
 //  that is what I need for this test (e.g. flush "Hello" to the client, makes
 //  selection when the connection is still hold, and check that the listener
 //  is executed before the server send "World" and close the connection).
 //
 //  Because this test is needed to the refactoring of context-menu as well, I
 //  believe we will find a proper solution quickly.
 /*
 exports["test Selection Listener on long-held connection"] = function(assert, done) {
 };
 */
 // If the platform doesn't support the PBPW, we're replacing PBPW tests
 if (!require("sdk/private-browsing/utils").isWindowPBSupported) {
   Object.keys(module.exports).forEach(function(key) {
     if (key.indexOf("test PBPW") === 0) {
       module.exports[key] = function Unsupported (assert) {
         assert.pass("Private Window Per Browsing is not supported on this platform.");
       }
     }
   });
 }
 require("test").run(exports)