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"use strict";
const PATH = getRootDirectory(gTestPath).replace(
"chrome://mochitests/content/",
"http://example.com/"
);
const URL = PATH + "file_async_flushes.html";
add_task(async function test_flush() {
// Create new tab.
let tab = BrowserTestUtils.addTab(gBrowser, URL);
let browser = tab.linkedBrowser;
await promiseBrowserLoaded(browser);
// Flush to empty any queued update messages.
await TabStateFlusher.flush(browser);
// There should be one history entry.
let { entries } = JSON.parse(ss.getTabState(tab));
is(entries.length, 1, "there is a single history entry");
// Click the link to navigate, this will add second shistory entry.
await SpecialPowers.spawn(browser, [], async function() {
return new Promise(resolve => {
docShell.chromeEventHandler.addEventListener(
"hashchange",
() => resolve(),
{ once: true, capture: true }
);
// Click the link.
content.document.querySelector("a").click();
});
});
// Flush to empty any queued update messages.
await TabStateFlusher.flush(browser);
// There should be two history entries now.
({ entries } = JSON.parse(ss.getTabState(tab)));
is(entries.length, 2, "there are two shistory entries");
// Cleanup.
gBrowser.removeTab(tab);
});
add_task(async function test_crash() {
// Create new tab.
let tab = BrowserTestUtils.addTab(gBrowser, URL);
gBrowser.selectedTab = tab;
let browser = tab.linkedBrowser;
await promiseBrowserLoaded(browser);
// Flush to empty any queued update messages.
await TabStateFlusher.flush(browser);
// There should be one history entry.
let { entries } = JSON.parse(ss.getTabState(tab));
is(entries.length, 1, "there is a single history entry");
// Click the link to navigate.
await SpecialPowers.spawn(browser, [], async function() {
return new Promise(resolve => {
docShell.chromeEventHandler.addEventListener(
"hashchange",
() => resolve(),
{ once: true, capture: true }
);
// Click the link.
content.document.querySelector("a").click();
});
});
// Crash the browser and flush. Both messages are async and will be sent to
// the content process. The "crash" message makes it first so that we don't
// get a chance to process the flush. The TabStateFlusher however should be
// notified so that the flush still completes.
let promise1 = BrowserTestUtils.crashFrame(browser);
let promise2 = TabStateFlusher.flush(browser);
await Promise.all([promise1, promise2]);
// The pending update should be lost.
({ entries } = JSON.parse(ss.getTabState(tab)));
is(entries.length, 1, "still only one history entry");
// Cleanup.
gBrowser.removeTab(tab);
});
add_task(async function test_remove() {
// Create new tab.
let tab = BrowserTestUtils.addTab(gBrowser, URL);
let browser = tab.linkedBrowser;
await promiseBrowserLoaded(browser);
// Flush to empty any queued update messages.
await TabStateFlusher.flush(browser);
// There should be one history entry.
let { entries } = JSON.parse(ss.getTabState(tab));
is(entries.length, 1, "there is a single history entry");
// Click the link to navigate.
await SpecialPowers.spawn(browser, [], async function() {
return new Promise(resolve => {
docShell.chromeEventHandler.addEventListener(
"hashchange",
() => resolve(),
{ once: true, capture: true }
);
// Click the link.
content.document.querySelector("a").click();
});
});
// Request a flush and remove the tab. The flush should still complete.
await Promise.all([
TabStateFlusher.flush(browser),
promiseRemoveTabAndSessionState(tab),
]);
});
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