browser/components/privatebrowsing/test/browser/browser_privatebrowsing_aboutHomeButtonAfterWindowClose.js


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/* 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/. */

// This test checks that the Session Restore "Restore Previous Session"
// button on about:home is disabled in private mode
add_task(function* test_no_sessionrestore_button() {
  // Opening, then closing, a private window shouldn't create session data.
  (yield BrowserTestUtils.openNewBrowserWindow({private: true})).close();

  let win = yield BrowserTestUtils.openNewBrowserWindow({private: true});
  let tab = win.gBrowser.addTab("about:home");
  let browser = tab.linkedBrowser;

  yield BrowserTestUtils.browserLoaded(browser);

  yield ContentTask.spawn(browser, null, function* () {
    let button = content.document.getElementById("restorePreviousSession");
    Assert.equal(content.getComputedStyle(button).display, "none",
      "The Session Restore about:home button should be disabled");
  });

  win.close();
});