forked from mirrors/gecko-dev
93 lines
3.6 KiB
JavaScript
93 lines
3.6 KiB
JavaScript
/* Any copyright is dedicated to the Public Domain.
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http://creativecommons.org/publicdomain/zero/1.0/ */
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"use strict";
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// Test that clicking on the Start button next to a Service Worker works as
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// intended in about:debugging.
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// It should cause a worker to start running in a child process.
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// Service workers can't be loaded from chrome://, but http:// is ok with
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// dom.serviceWorkers.testing.enabled turned on.
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const SERVICE_WORKER = URL_ROOT + "service-workers/empty-sw.js";
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const TAB_URL = URL_ROOT + "service-workers/empty-sw.html";
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const SW_TIMEOUT = 1000;
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add_task(function* () {
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info("Turn on workers via mochitest http.");
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yield new Promise(done => {
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let options = { "set": [
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// Accept workers from mochitest's http.
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["dom.serviceWorkers.testing.enabled", true],
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// Reduce the timeout to accelerate service worker freezing
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["dom.serviceWorkers.idle_timeout", SW_TIMEOUT],
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["dom.serviceWorkers.idle_extended_timeout", SW_TIMEOUT],
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]};
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SpecialPowers.pushPrefEnv(options, done);
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});
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let { tab, document } = yield openAboutDebugging("workers");
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// Listen for mutations in the service-workers list.
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let serviceWorkersElement = getServiceWorkerList(document);
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let onMutation = waitForMutation(serviceWorkersElement, { childList: true });
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// Open a tab that registers an empty service worker.
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let swTab = yield addTab(TAB_URL);
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// Wait for the service-workers list to update.
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yield onMutation;
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// Check that the service worker appears in the UI.
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assertHasTarget(true, document, "service-workers", SERVICE_WORKER);
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info("Ensure that the registration resolved before trying to interact with " +
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"the service worker.");
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yield waitForServiceWorkerRegistered(swTab);
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ok(true, "Service worker registration resolved");
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// Retrieve the Target element corresponding to the service worker.
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let names = [...document.querySelectorAll("#service-workers .target-name")];
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let name = names.filter(element => element.textContent === SERVICE_WORKER)[0];
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ok(name, "Found the service worker in the list");
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let targetElement = name.parentNode.parentNode;
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// The service worker may already be killed with the low 1s timeout
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if (!targetElement.querySelector(".start-button")) {
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// Check that there is a Debug button but not a Start button.
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ok(targetElement.querySelector(".debug-button"), "Found its debug button");
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// Wait for the service worker to be killed due to inactivity.
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yield waitForMutation(targetElement, { childList: true });
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} else {
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// Check that there is no Debug button when the SW is already shut down.
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ok(!targetElement.querySelector(".debug-button"), "No debug button when " +
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"the worker is already killed");
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}
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// We should now have a Start button but no Debug button.
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let startBtn = targetElement.querySelector(".start-button");
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ok(startBtn, "Found its start button");
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ok(!targetElement.querySelector(".debug-button"), "No debug button");
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// Click on the Start button and wait for the service worker to be back.
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let onStarted = waitForMutation(targetElement, { childList: true });
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startBtn.click();
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yield onStarted;
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// Check that we have a Debug button but not a Start button again.
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ok(targetElement.querySelector(".debug-button"), "Found its debug button");
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ok(!targetElement.querySelector(".start-button"), "No start button");
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// Finally, unregister the service worker itself.
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try {
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yield unregisterServiceWorker(swTab);
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ok(true, "Service worker registration unregistered");
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} catch (e) {
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ok(false, "SW not unregistered; " + e);
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}
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yield removeTab(swTab);
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yield closeAboutDebugging(tab);
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});
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