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Test Info:
- Manifest: dom/base/test/browser.toml
// The tab closing code leaves an uncaught rejection. This test has been
// whitelisted until the issue is fixed.
if (!gMultiProcessBrowser) {
const { PromiseTestUtils } = ChromeUtils.importESModule(
);
PromiseTestUtils.expectUncaughtRejection(/is no longer, usable/);
}
var testURLs = [
];
// We want to ensure that while audio is being played back, a background tab is
// treated the same as a foreground tab as far as timeout throttling is concerned.
// So we use a 100,000 second minimum timeout value for background tabs. This
// means that in case the test fails, it will time out in practice, but just for
// sanity the test condition ensures that the observed timeout delay falls in
// this range.
const kMinTimeoutBackground = 100 * 1000 * 1000;
const kDelay = 10;
async function runTest(url) {
let currentTab = gBrowser.selectedTab;
let newTab = await BrowserTestUtils.openNewForegroundTab(gBrowser, kBaseURI);
let newBrowser = gBrowser.getBrowserForTab(newTab);
// Wait for the UI to indicate that audio is being played back.
let promise = BrowserTestUtils.waitForAttribute("soundplaying", newTab);
BrowserTestUtils.startLoadingURIString(newBrowser, url);
await promise;
// Put the tab in the background.
await BrowserTestUtils.switchTab(gBrowser, currentTab);
let timeout = await SpecialPowers.spawn(
newBrowser,
[kDelay],
function (delay) {
return new Promise(resolve => {
let before = new Date();
content.window.setTimeout(function () {
let after = new Date();
resolve(after - before);
}, delay);
});
}
);
Assert.lessOrEqual(
timeout,
kMinTimeoutBackground,
`Got the correct timeout (${timeout})`
);
// All done.
BrowserTestUtils.removeTab(newTab);
}
add_setup(async function () {
await SpecialPowers.pushPrefEnv({
set: [["dom.min_background_timeout_value", kMinTimeoutBackground]],
});
});
add_task(async function test() {
for (var url of testURLs) {
await runTest(url);
}
});