зеркало из https://github.com/mozilla/gecko-dev.git
56 строки
2.1 KiB
JavaScript
56 строки
2.1 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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const PREF_ACCESSIBILITY_FORCE_DISABLED = "accessibility.force_disabled";
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add_task(async function testForceDisable() {
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ok(!Services.appinfo.accessibilityEnabled, "Accessibility is disabled by default");
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info("Reset force disabled preference");
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Services.prefs.clearUserPref(PREF_ACCESSIBILITY_FORCE_DISABLED);
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info("Enable accessibility service via XPCOM");
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let a11yInit = initPromise();
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let accService = Cc["@mozilla.org/accessibilityService;1"].getService(
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Ci.nsIAccessibilityService);
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await a11yInit;
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ok(Services.appinfo.accessibilityEnabled, "Accessibility is enabled");
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info("Force disable a11y service via preference");
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let a11yShutdown = shutdownPromise();
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Services.prefs.setIntPref(PREF_ACCESSIBILITY_FORCE_DISABLED, 1);
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await a11yShutdown;
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ok(!Services.appinfo.accessibilityEnabled, "Accessibility is disabled");
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info("Attempt to get an instance of a11y service and call its method.");
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accService = Cc["@mozilla.org/accessibilityService;1"].getService(
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Ci.nsIAccessibilityService);
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try {
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accService.getAccesssibleFor(document);
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ok(false, "getAccesssibleFor should've triggered an exception.");
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} catch (e) {
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ok(true, "getAccesssibleFor triggers an exception as a11y service is shutdown.");
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}
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ok(!Services.appinfo.accessibilityEnabled, "Accessibility is disabled");
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info("Reset force disabled preference");
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Services.prefs.clearUserPref(PREF_ACCESSIBILITY_FORCE_DISABLED);
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info("Create a11y service again");
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a11yInit = initPromise();
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accService = Cc["@mozilla.org/accessibilityService;1"].getService(
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Ci.nsIAccessibilityService);
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await a11yInit;
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ok(Services.appinfo.accessibilityEnabled, "Accessibility is enabled");
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info("Remove all references to a11y service");
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a11yShutdown = shutdownPromise();
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accService = null;
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forceGC();
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await a11yShutdown;
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ok(!Services.appinfo.accessibilityEnabled, "Accessibility is disabled");
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});
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