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path: root/tests/pagemod-test-helpers.js
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"use strict";

const Cc = require("chrome").Cc;
const Ci = require("chrome").Ci;
/**
 * A helper function that creates a PageMod, then opens the specified URL and
 * checks the effect of the page mod on 'onload' event via testCallback.
 */
exports.testPageMod = function testPageMod(test, testURL, pageModOptions,
    testCallback, timeout) {
  var xulApp = require("xul-app");
  if (!xulApp.versionInRange(xulApp.platformVersion, "1.9.3a3", "*") &&
      !xulApp.versionInRange(xulApp.platformVersion, "1.9.2.7", "1.9.2.*")) {
    test.pass("Note: not testing PageMod, as it doesn't work on this platform version");
    return null;
  }

  var wm = Cc['@mozilla.org/appshell/window-mediator;1']
  .getService(Ci.nsIWindowMediator);
  var browserWindow = wm.getMostRecentWindow("navigator:browser");
  if (!browserWindow) {
    test.pass("page-mod tests: could not find the browser window, so " +
    "will not run. Use -a firefox to run the pagemod tests.");
    return null;
  }

  if (timeout !== undefined) {
    test.waitUntilDone(timeout);
  }
  else {
    test.waitUntilDone();
  }

  let loader = test.makeSandboxedLoader();
  let pageMod = loader.require("page-mod");

  var pageMods = [new pageMod.PageMod(opts) for each(opts in pageModOptions)];

  var tabBrowser = browserWindow.gBrowser;
  var newTab = tabBrowser.addTab(testURL);
  tabBrowser.selectedTab = newTab;
  var b = tabBrowser.getBrowserForTab(newTab);

  function onPageLoad() {
    b.removeEventListener("load", onPageLoad, true);
    testCallback(b.contentWindow.wrappedJSObject, function done() {
      pageMods.forEach(function(mod) {mod.destroy()});
      // XXX leaks reported if we don't close the tab?
      tabBrowser.removeTab(newTab);
      test.done();
    });
  }
  b.addEventListener("load", onPageLoad, true);

  return pageMods;
}