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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 17:32:43 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 17:32:43 +0000
commit6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch)
treea68f146d7fa01f0134297619fbe7e33db084e0aa /accessible/tests/browser/browser_shutdown_remote_own_reference.js
parentInitial commit. (diff)
downloadthunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz
thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'accessible/tests/browser/browser_shutdown_remote_own_reference.js')
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1 files changed, 181 insertions, 0 deletions
diff --git a/accessible/tests/browser/browser_shutdown_remote_own_reference.js b/accessible/tests/browser/browser_shutdown_remote_own_reference.js
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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/. */
+
+"use strict";
+
+add_task(async function () {
+ // Making sure that the e10s is enabled on Windows for testing.
+ await setE10sPrefs();
+
+ await BrowserTestUtils.withNewTab(
+ {
+ gBrowser,
+ url: `data:text/html,
+ <html>
+ <head>
+ <meta charset="utf-8"/>
+ <title>Accessibility Test</title>
+ </head>
+ <body></body>
+ </html>`,
+ },
+ async function (browser) {
+ info(
+ "Creating a service in parent and waiting for service to be created " +
+ "in content"
+ );
+ await loadContentScripts(browser, {
+ script: "Common.sys.mjs",
+ symbol: "CommonUtils",
+ });
+ // Create a11y service in the main process. This will trigger creating of
+ // the a11y service in parent as well.
+ const [parentA11yInitObserver, parentA11yInit] = initAccService();
+ const [contentA11yInitObserver, contentA11yInit] =
+ initAccService(browser);
+ let [contentConsumersChangedObserver, contentConsumersChanged] =
+ accConsumersChanged(browser);
+
+ await Promise.all([
+ parentA11yInitObserver,
+ contentA11yInitObserver,
+ contentConsumersChangedObserver,
+ ]);
+
+ let accService = Cc["@mozilla.org/accessibilityService;1"].getService(
+ Ci.nsIAccessibilityService
+ );
+ ok(accService, "Service initialized in parent");
+ await Promise.all([parentA11yInit, contentA11yInit]);
+ await contentConsumersChanged.then(data =>
+ Assert.deepEqual(
+ data,
+ {
+ XPCOM: false,
+ MainProcess: true,
+ PlatformAPI: false,
+ },
+ "Accessibility service consumers in content are correct."
+ )
+ );
+
+ info(
+ "Adding additional reference to accessibility service in content " +
+ "process"
+ );
+ [contentConsumersChangedObserver, contentConsumersChanged] =
+ accConsumersChanged(browser);
+ await contentConsumersChangedObserver;
+ // Add a new reference to the a11y service inside the content process.
+ await SpecialPowers.spawn(browser, [], () => {
+ content.CommonUtils.accService;
+ });
+ await contentConsumersChanged.then(data =>
+ Assert.deepEqual(
+ data,
+ {
+ XPCOM: true,
+ MainProcess: true,
+ PlatformAPI: false,
+ },
+ "Accessibility service consumers in content are correct."
+ )
+ );
+
+ const contentConsumers = await SpecialPowers.spawn(browser, [], () =>
+ content.CommonUtils.accService.getConsumers()
+ );
+ Assert.deepEqual(
+ JSON.parse(contentConsumers),
+ {
+ XPCOM: true,
+ MainProcess: true,
+ PlatformAPI: false,
+ },
+ "Accessibility service consumers in parent are correct."
+ );
+
+ info(
+ "Shutting down a service in parent and making sure the one in " +
+ "content stays alive"
+ );
+ let contentCanShutdown = false;
+ const [parentA11yShutdownObserver, parentA11yShutdown] =
+ shutdownAccService();
+ [contentConsumersChangedObserver, contentConsumersChanged] =
+ accConsumersChanged(browser);
+ // This promise will resolve only if contentCanShutdown flag is set to true.
+ // If 'a11y-init-or-shutdown' event with '0' flag (in content) comes before
+ // it can be shut down, the promise will reject.
+ const [contentA11yShutdownObserver, contentA11yShutdownPromise] =
+ shutdownAccService(browser);
+ const contentA11yShutdown = new Promise((resolve, reject) =>
+ contentA11yShutdownPromise.then(flag =>
+ contentCanShutdown
+ ? resolve()
+ : reject("Accessible service was shut down incorrectly")
+ )
+ );
+
+ await Promise.all([
+ parentA11yShutdownObserver,
+ contentA11yShutdownObserver,
+ contentConsumersChangedObserver,
+ ]);
+ // Remove a11y service reference in the main process and force garbage
+ // collection. This should not trigger shutdown in content since a11y
+ // service is used by XPCOM.
+ accService = null;
+ ok(!accService, "Service is removed in parent");
+ // Force garbage collection that should not trigger shutdown because there
+ // is a reference in a content process.
+ forceGC();
+ await SpecialPowers.spawn(browser, [], () => {
+ SpecialPowers.Cu.forceGC();
+ });
+ await parentA11yShutdown;
+ await contentConsumersChanged.then(data =>
+ Assert.deepEqual(
+ data,
+ {
+ XPCOM: true,
+ MainProcess: false,
+ PlatformAPI: false,
+ },
+ "Accessibility service consumers in content are correct."
+ )
+ );
+
+ // Have some breathing room between a11y service shutdowns.
+ await TestUtils.waitForTick();
+
+ info("Removing a service in content");
+ // Now allow a11y service to shutdown in content.
+ contentCanShutdown = true;
+ [contentConsumersChangedObserver, contentConsumersChanged] =
+ accConsumersChanged(browser);
+ await contentConsumersChangedObserver;
+ // Remove last reference to a11y service in content and force garbage
+ // collection that should trigger shutdown.
+ await SpecialPowers.spawn(browser, [], () => {
+ content.CommonUtils.clearAccService();
+ });
+ await contentA11yShutdown;
+ await contentConsumersChanged.then(data =>
+ Assert.deepEqual(
+ data,
+ {
+ XPCOM: false,
+ MainProcess: false,
+ PlatformAPI: false,
+ },
+ "Accessibility service consumers in content are correct."
+ )
+ );
+
+ // Unsetting e10s related preferences.
+ await unsetE10sPrefs();
+ }
+ );
+});