gecko/browser/components/sessionstore/test/browser_625257.js

85 lines
2.5 KiB
JavaScript

/* 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 tests that a tab which is closed while loading is not lost.
// Specifically, that session store does not rely on an invalid cache when
// constructing data for a tab which is loading.
// The newly created tab which we load a URL into and try closing/undoing.
let tab;
// This test steps through the following parts:
// 1. Tab has been created is loading URI_TO_LOAD.
// 2. Before URI_TO_LOAD finishes loading, browser.currentURI has changed and
// tab is scheduled to be removed.
// 3. After the tab has been closed, undoCloseTab() has been called and the tab
// should fully load.
const URI_TO_LOAD = "about:home";
function test() {
waitForExplicitFinish();
gBrowser.addTabsProgressListener(tabsListener);
tab = gBrowser.addTab();
tab.linkedBrowser.addEventListener("load", firstOnLoad, true);
gBrowser.tabContainer.addEventListener("TabClose", onTabClose, true);
}
function firstOnLoad(aEvent) {
tab.linkedBrowser.removeEventListener("load", firstOnLoad, true);
let uri = aEvent.target.location;
is(uri, "about:blank", "first load should be for about:blank");
// Trigger a save state.
ss.getBrowserState();
is(gBrowser.tabs[1], tab, "newly created tab should exist by now");
tab.linkedBrowser.loadURI(URI_TO_LOAD);
}
let tabsListener = {
onLocationChange: function onLocationChange(aBrowser) {
gBrowser.removeTabsProgressListener(tabsListener);
is(aBrowser.currentURI.spec, URI_TO_LOAD,
"should occur after about:blank load and be loading next page");
// Since we are running in the context of tabs listeners, we do not
// want to disrupt other tabs listeners.
executeSoon(function() {
gBrowser.removeTab(tab);
});
}
};
function onTabClose(aEvent) {
gBrowser.tabContainer.removeEventListener("TabClose", onTabClose, true);
is(tab.linkedBrowser.currentURI.spec, URI_TO_LOAD,
"should only remove when loading page");
executeSoon(function() {
tab = ss.undoCloseTab(window, 0);
tab.linkedBrowser.addEventListener("load", secondOnLoad, true);
});
}
function secondOnLoad(aEvent) {
let uri = aEvent.target.location;
is(uri, URI_TO_LOAD, "should load page from undoCloseTab");
done();
}
function done() {
tab.linkedBrowser.removeEventListener("load", secondOnLoad, true);
gBrowser.removeTab(tab);
executeSoon(finish);
}