mozilla-central/browser/components/urlbar/tests/browser/browser_loadRace.js (file symbol)

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Test Info: Warnings

/* Any copyright is dedicated to the Public Domain.
*/
// This test is for testing races of loading the Urlbar when loading shortcuts.
// For example, ensuring that if a search query is entered, but something causes
// a page load whilst we're getting the search url, then we don't handle the
// original search query.
add_setup(async function () {
sandbox = sinon.createSandbox();
registerCleanupFunction(async () => {
sandbox.restore();
});
});
async function checkShortcutLoading(modifierKeys) {
let deferred = Promise.withResolvers();
let tab = await BrowserTestUtils.openNewForegroundTab({
gBrowser,
opening: "about:robots",
});
// We stub getHeuristicResultFor to guarentee it doesn't resolve until after
// we've loaded a new page.
let original = UrlbarUtils.getHeuristicResultFor;
sandbox
.stub(UrlbarUtils, "getHeuristicResultFor")
.callsFake(async searchString => {
await deferred.promise;
return original.call(this, searchString);
});
// This load will be blocked until the deferred is resolved.
// Use a string that will be interepreted as a local URL to avoid hitting the
// network.
gURLBar.focus();
gURLBar.value = "example.com";
gURLBar.userTypedValue = true;
EventUtils.synthesizeKey("KEY_Enter", modifierKeys);
Assert.ok(
UrlbarUtils.getHeuristicResultFor.calledOnce,
"should have called getHeuristicResultFor"
);
// Now load a different page.
BrowserTestUtils.startLoadingURIString(tab.linkedBrowser, "about:license");
await BrowserTestUtils.browserLoaded(tab.linkedBrowser);
Assert.equal(gBrowser.visibleTabs.length, 2, "Should have 2 tabs");
// Now that the new page has loaded, unblock the previous urlbar load.
deferred.resolve();
if (modifierKeys) {
let openedTab = await new Promise(resolve => {
window.addEventListener(
"TabOpen",
event => {
resolve(event.target);
},
{ once: true }
);
});
await BrowserTestUtils.browserLoaded(openedTab.linkedBrowser);
Assert.ok(
openedTab.linkedBrowser.currentURI.spec.includes("example.com"),
"Should have attempted to open the shortcut page"
);
BrowserTestUtils.removeTab(openedTab);
}
Assert.equal(
tab.linkedBrowser.currentURI.spec,
"about:license",
"Tab url should not have changed"
);
Assert.equal(gBrowser.visibleTabs.length, 2, "Should still have 2 tabs");
BrowserTestUtils.removeTab(tab);
sandbox.restore();
}
add_task(async function test_location_change_stops_load() {
await checkShortcutLoading();
});
add_task(async function test_opening_different_tab_with_location_change() {
await checkShortcutLoading({ altKey: true });
});