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058dce8bba
# ignore-this-changeset Differential Revision: https://phabricator.services.mozilla.com/D35895 --HG-- extra : source : e786ed0773342d7c897007bb1be5a101945b894a
173 lines
5.3 KiB
JavaScript
173 lines
5.3 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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{
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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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},
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async function(browser) {
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info(
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"Creating a service in parent and waiting for service to be created " +
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"in content"
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);
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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 contentConsumersChanged = ContentTask.spawn(
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browser,
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{},
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a11yConsumersChangedPromise
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);
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let accService = Cc["@mozilla.org/accessibilityService;1"].getService(
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Ci.nsIAccessibilityService
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);
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ok(accService, "Service initialized in parent");
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await Promise.all([parentA11yInit, contentA11yInit]);
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await contentConsumersChanged.then(data =>
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Assert.deepEqual(
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data,
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{
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XPCOM: false,
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MainProcess: true,
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PlatformAPI: false,
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},
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"Accessibility service consumers in content are correct."
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)
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);
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info(
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"Adding additional reference to accessibility service in content " +
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"process"
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);
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contentConsumersChanged = ContentTask.spawn(
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browser,
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{},
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a11yConsumersChangedPromise
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);
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// Add a new reference to the a11y service inside the content process.
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loadFrameScripts(
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browser,
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`var accService = Components.classes[
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'@mozilla.org/accessibilityService;1'].getService(
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Components.interfaces.nsIAccessibilityService);`
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);
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await contentConsumersChanged.then(data =>
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Assert.deepEqual(
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data,
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{
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XPCOM: true,
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MainProcess: true,
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PlatformAPI: false,
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},
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"Accessibility service consumers in content are correct."
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)
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);
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const contentConsumers = await ContentTask.spawn(browser, {}, () =>
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accService.getConsumers()
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);
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Assert.deepEqual(
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JSON.parse(contentConsumers),
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{
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XPCOM: true,
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MainProcess: true,
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PlatformAPI: false,
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},
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"Accessibility service consumers in parent are correct."
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);
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info(
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"Shutting down a service in parent and making sure the one in " +
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"content stays alive"
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);
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let contentCanShutdown = false;
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let parentA11yShutdown = shutdownPromise();
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contentConsumersChanged = ContentTask.spawn(
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browser,
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{},
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a11yConsumersChangedPromise
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);
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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 =>
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contentCanShutdown
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? resolve()
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: reject("Accessible service was shut down incorrectly")
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)
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);
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// Remove a11y service reference in the main process and force garbage
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// collection. This should not trigger shutdown in content since a11y
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// service is used by XPCOM.
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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 not trigger shutdown because there
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// is a reference in a content process.
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forceGC();
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loadFrameScripts(browser, `Components.utils.forceGC();`);
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await parentA11yShutdown;
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await contentConsumersChanged.then(data =>
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Assert.deepEqual(
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data,
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{
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XPCOM: true,
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MainProcess: false,
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PlatformAPI: false,
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},
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"Accessibility service consumers in content are correct."
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)
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);
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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 content");
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// Now allow a11y service to shutdown in content.
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contentCanShutdown = true;
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contentConsumersChanged = ContentTask.spawn(
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browser,
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{},
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a11yConsumersChangedPromise
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);
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// Remove last reference to a11y service in content and force garbage
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// collection that should trigger shutdown.
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loadFrameScripts(
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browser,
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`accService = null; Components.utils.forceGC();`
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);
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await contentA11yShutdown;
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await contentConsumersChanged.then(data =>
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Assert.deepEqual(
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data,
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{
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XPCOM: false,
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MainProcess: false,
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PlatformAPI: false,
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},
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"Accessibility service consumers in content are correct."
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)
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);
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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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});
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