mozilla-central/browser/base/content/test/general/browser_invalid_uri_back_forward_manipulation.js (file symbol)

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Test Info: Warnings

"use strict";
/**
* Verify that loading an invalid URI does not clobber a previously-loaded page's history
* entry, but that the invalid URI gets its own history entry instead. We're checking this
* using nsIWebNavigation's canGoBack, as well as actually going back and then checking
* canGoForward.
*/
add_task(async function checkBackFromInvalidURI() {
await pushPrefs(["keyword.enabled", false]);
let tab = await BrowserTestUtils.openNewForegroundTab(
gBrowser,
"about:robots",
true
);
await ContentTask.spawn(gBrowser.selectedBrowser, {}, async function () {
// Mark the first entry as having been interacted with.
content.document.notifyUserGestureActivation();
});
info("Loaded about:robots");
gURLBar.value = "::2600";
let promiseErrorPageLoaded = BrowserTestUtils.waitForErrorPage(
tab.linkedBrowser
);
gURLBar.handleCommand();
await promiseErrorPageLoaded;
ok(gBrowser.webNavigation.canGoBack, "Should be able to go back");
if (gBrowser.webNavigation.canGoBack) {
// Can't use DOMContentLoaded here because the page is bfcached. Can't use pageshow for
// the error page because it doesn't seem to fire for those.
let promiseOtherPageLoaded = BrowserTestUtils.waitForEvent(
tab.linkedBrowser,
"pageshow",
false,
// Be paranoid we *are* actually seeing this other page load, not some kind of race
// for if/when we do start firing pageshow for the error page...
function () {
return gBrowser.currentURI.spec == "about:robots";
}
);
gBrowser.goBack();
await promiseOtherPageLoaded;
ok(
gBrowser.webNavigation.canGoForward,
"Should be able to go forward from previous page."
);
}
BrowserTestUtils.removeTab(tab);
});