browser/base/content/test/general/browser_tab_close_dependent_window.js


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"use strict";

add_task(async function closing_tab_with_dependents_should_close_window() {
  info("Opening window");
  let win = await BrowserTestUtils.openNewBrowserWindow();

  info("Opening tab with data URI");
  let tab = await BrowserTestUtils.openNewForegroundTab(
    win.gBrowser,
    `data:text/html,<html%20onclick="W=window.open()"><body%20onbeforeunload="W.close()">`
  );
  info("Closing original tab in this window.");
  BrowserTestUtils.removeTab(win.gBrowser.tabs[0]);
  info("Clicking into the window");
  let depTabOpened = BrowserTestUtils.waitForEvent(
    win.gBrowser.tabContainer,
    "TabOpen"
  );
  await BrowserTestUtils.synthesizeMouse("html", 0, 0, {}, tab.linkedBrowser);

  let openedTab = (await depTabOpened).target;
  info("Got opened tab");

  let windowClosedPromise = BrowserTestUtils.windowClosed(win);
  BrowserTestUtils.removeTab(tab);
  is(
    Cu.isDeadWrapper(openedTab) || openedTab.linkedBrowser == null,
    true,
    "Opened tab should also have closed"
  );
  info(
    "If we timeout now, the window failed to close - that shouldn't happen!"
  );
  await windowClosedPromise;
});