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/* 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/>. */
// Tests tracing web workers
"use strict";
add_task(async function testTracingWorker() {
await pushPref("devtools.debugger.features.javascript-tracing", true);
// We have to enable worker targets and disable this pref to have functional tracing for workers
await pushPref("dom.worker.console.dispatch_events_to_main_thread", false);
const dbg = await initDebugger("doc-scripts.html");
info("Instantiate a worker");
const { targetCommand } = dbg.toolbox.commands;
let onAvailable;
const onNewTarget = new Promise(resolve => {
onAvailable = ({ targetFront }) => {
resolve(targetFront);
};
});
await targetCommand.watchTargets({
types: [targetCommand.TYPES.FRAME],
onAvailable,
});
await SpecialPowers.spawn(gBrowser.selectedBrowser, [], async function () {
content.worker = new content.Worker("simple-worker.js");
});
info("Wait for the worker target");
const workerTarget = await onNewTarget;
await waitFor(
() => findAllElements(dbg, "threadsPaneItems").length == 2,
"Wait for the two threads to be displayed in the thread pane"
);
const threadsEl = findAllElements(dbg, "threadsPaneItems");
is(threadsEl.length, 2, "There are two threads in the thread panel");
info("Enable tracing on all threads");
await clickElement(dbg, "trace");
info("Wait for tracing to be enabled for the worker");
await waitForState(dbg, state => {
return dbg.selectors.getIsThreadCurrentlyTracing(
workerTarget.threadFront.actorID
);
});
// `timer` is called within the worker via a setInterval of 1 second
await hasConsoleMessage(dbg, "setIntervalCallback");
await hasConsoleMessage(dbg, "λ timer");
// Also verify that postMessage are traced
await SpecialPowers.spawn(gBrowser.selectedBrowser, [], async function () {
content.worker.postMessage("foo");
});
await hasConsoleMessage(dbg, "DOM(message)");
await hasConsoleMessage(dbg, "λ onmessage");
await dbg.toolbox.closeToolbox();
});
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