"use strict"; const { TabStateFlusher } = ChromeUtils.importESModule( "resource:///modules/sessionstore/TabStateFlusher.sys.mjs" ); add_task(async function () { let uri = // eslint-disable-next-line @microsoft/sdl/no-insecure-url "http://example.com/browser/browser/base/content/test/general/dummy_page.html"; // Clear out the closed windows set to start while (SessionStore.getClosedWindowCount() > 0) { SessionStore.forgetClosedWindow(0); } let tab = BrowserTestUtils.addTab(gBrowser); BrowserTestUtils.loadURIString(tab.linkedBrowser, uri); await BrowserTestUtils.browserLoaded(tab.linkedBrowser, false, uri); await TabStateFlusher.flush(tab.linkedBrowser); let key = tab.linkedBrowser.permanentKey; let win = gBrowser.replaceTabWithWindow(tab); await new Promise(resolve => whenDelayedStartupFinished(win, resolve)); is( win.gBrowser.selectedBrowser.permanentKey, key, "Should have properly copied the permanentKey" ); await BrowserTestUtils.closeWindow(win); is( SessionStore.getClosedWindowCount(), 1, "Should have restore data for the closed window" ); win = SessionStore.undoCloseWindow(0); await BrowserTestUtils.waitForEvent(win, "load"); await BrowserTestUtils.waitForEvent( win.gBrowser.tabContainer, "SSTabRestored" ); is(win.gBrowser.tabs.length, 1, "Should have restored one tab"); is( win.gBrowser.selectedBrowser.currentURI.spec, uri, "Should have restored the right page" ); await promiseWindowClosed(win); });