From 6bf0a5cb5034a7e684dcc3500e841785237ce2dd Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 19:32:43 +0200 Subject: Adding upstream version 1:115.7.0. Signed-off-by: Daniel Baumann --- .../browser_shutdown_parent_own_reference.js | 102 +++++++++++++++++++++ 1 file changed, 102 insertions(+) create mode 100644 accessible/tests/browser/browser_shutdown_parent_own_reference.js (limited to 'accessible/tests/browser/browser_shutdown_parent_own_reference.js') diff --git a/accessible/tests/browser/browser_shutdown_parent_own_reference.js b/accessible/tests/browser/browser_shutdown_parent_own_reference.js new file mode 100644 index 0000000000..472d5c9c95 --- /dev/null +++ b/accessible/tests/browser/browser_shutdown_parent_own_reference.js @@ -0,0 +1,102 @@ +/* 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, + + + + Accessibility Test + + + `, + }, + 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); + + await Promise.all([parentA11yInitObserver, contentA11yInitObserver]); + + let accService = Cc["@mozilla.org/accessibilityService;1"].getService( + Ci.nsIAccessibilityService + ); + ok(accService, "Service initialized in parent"); + await Promise.all([parentA11yInit, contentA11yInit]); + + info( + "Adding additional reference to accessibility service in content " + + "process" + ); + // Add a new reference to the a11y service inside the content process. + await SpecialPowers.spawn(browser, [], () => { + content.CommonUtils.accService; + }); + + info( + "Trying to shut down a service in content and making sure it stays " + + "alive as it was started by parent" + ); + let contentCanShutdown = false; + // 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); + await contentA11yShutdownObserver; + const contentA11yShutdown = new Promise((resolve, reject) => + contentA11yShutdownPromise.then(flag => + contentCanShutdown + ? resolve() + : reject("Accessible service was shut down incorrectly") + ) + ); + // Remove a11y service reference in content and force garbage collection. + // This should not trigger shutdown since a11y was originally initialized by + // the main process. + await SpecialPowers.spawn(browser, [], () => { + content.CommonUtils.clearAccService(); + }); + + // Have some breathing room between a11y service shutdowns. + await TestUtils.waitForTick(); + + info("Removing a service in parent"); + // Now allow a11y service to shutdown in content. + contentCanShutdown = true; + // Remove the a11y service reference in the main process. + const [parentA11yShutdownObserver, parentA11yShutdown] = + shutdownAccService(); + await parentA11yShutdownObserver; + + accService = null; + ok(!accService, "Service is removed in parent"); + // Force garbage collection that should trigger shutdown in both parent and + // content. + forceGC(); + await Promise.all([parentA11yShutdown, contentA11yShutdown]); + + // Unsetting e10s related preferences. + await unsetE10sPrefs(); + } + ); +}); -- cgit v1.2.3