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1ce5193a91
MozReview-Commit-ID: BeIn3ThKQAx --HG-- extra : rebase_source : 02a3d9583a55a186bc6bb5c0308c6a88d72daf13
72 lines
3 KiB
JavaScript
72 lines
3 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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add_task(async function() {
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// Making sure that the e10s is enabled on Windows for testing.
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await setE10sPrefs();
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await BrowserTestUtils.withNewTab({
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gBrowser,
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url: `data:text/html,
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<html>
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<head>
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<meta charset="utf-8"/>
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<title>Accessibility Test</title>
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</head>
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<body></body>
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</html>`
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}, async function(browser) {
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info("Creating a service in parent and waiting for service to be created " +
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"in content");
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// Create a11y service in the main process. This will trigger creating of
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// the a11y service in parent as well.
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let parentA11yInit = initPromise();
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let contentA11yInit = initPromise(browser);
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let accService = Cc["@mozilla.org/accessibilityService;1"].getService(
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Ci.nsIAccessibilityService);
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ok(accService, "Service initialized in parent");
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await Promise.all([parentA11yInit, contentA11yInit]);
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info("Adding additional reference to accessibility service in content " +
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"process");
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// Add a new reference to the a11y service inside the content process.
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loadFrameScripts(browser, `let accService = Components.classes[
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'@mozilla.org/accessibilityService;1'].getService(
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Components.interfaces.nsIAccessibilityService);`);
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info("Trying to shut down a service in content and making sure it stays " +
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"alive as it was started by parent");
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let contentCanShutdown = false;
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// This promise will resolve only if contentCanShutdown flag is set to true.
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// If 'a11y-init-or-shutdown' event with '0' flag (in content) comes before
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// it can be shut down, the promise will reject.
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let contentA11yShutdown = new Promise((resolve, reject) =>
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shutdownPromise(browser).then(flag => contentCanShutdown ?
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resolve() : reject("Accessible service was shut down incorrectly")));
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// Remove a11y service reference in content and force garbage collection.
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// This should not trigger shutdown since a11y was originally initialized by
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// the main process.
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loadFrameScripts(browser, `accService = null; Components.utils.forceGC();`);
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// Have some breathing room between a11y service shutdowns.
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await new Promise(resolve => executeSoon(resolve));
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info("Removing a service in parent");
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// Now allow a11y service to shutdown in content.
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contentCanShutdown = true;
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// Remove the a11y service reference in the main process.
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let parentA11yShutdown = shutdownPromise();
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accService = null;
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ok(!accService, "Service is removed in parent");
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// Force garbage collection that should trigger shutdown in both parent and
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// content.
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forceGC();
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await Promise.all([parentA11yShutdown, contentA11yShutdown]);
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// Unsetting e10s related preferences.
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await unsetE10sPrefs();
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});
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});
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