gecko-dev/browser/components/uitour/test/browser_backgroundTab.js

"use strict";

var gTestTab;
var gContentAPI;
var gContentWindow;

requestLongerTimeout(2);
add_task(setup_UITourTest);

add_UITour_task(function* test_bg_getConfiguration() {
  info("getConfiguration is on the allowed list so should work");
  yield* loadForegroundTab();
  let data = yield getConfigurationPromise("availableTargets");
  ok(data, "Got data from getConfiguration");
  yield BrowserTestUtils.removeTab(gBrowser.selectedTab);
});

add_UITour_task(function* test_bg_showInfo() {
  info("showInfo isn't on the allowed action list so should be denied");
  yield* loadForegroundTab();

  yield showInfoPromise("appMenu", "Hello from the background", "Surprise!").then(
    () => ok(false, "panel shouldn't have shown from a background tab"),
    () => ok(true, "panel wasn't shown from a background tab"));

  yield BrowserTestUtils.removeTab(gBrowser.selectedTab);
});


function* loadForegroundTab() {
  // Spawn a content task that resolves once we're sure the visibilityState was
  // changed. This state is what the tests in this file rely on.
  let promise = ContentTask.spawn(gBrowser.selectedTab.linkedBrowser, null, function* () {
    return new Promise(resolve => {
      let document = content.document;
      document.addEventListener("visibilitychange", function onStateChange() {
        Assert.equal(document.visibilityState, "hidden", "UITour page should be hidden now.");
        document.removeEventListener("visibilitychange", onStateChange);
        resolve();
      });
    });
  });
  yield BrowserTestUtils.openNewForegroundTab(gBrowser);
  yield promise;
  isnot(gBrowser.selectedTab, gTestTab, "Make sure tour tab isn't selected");
}