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8f7b86117b
add test. Differential Revision: https://phabricator.services.mozilla.com/D5800 --HG-- extra : moz-landing-system : lando
61 lines
1.8 KiB
JavaScript
61 lines
1.8 KiB
JavaScript
/**
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* This test is used to ensure the 'sound-playing' icon would not disappear after
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* sites call AudioContext.resume().
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*/
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"use strict";
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function setup_test_preference() {
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return SpecialPowers.pushPrefEnv({"set": [
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["media.useAudioChannelService.testing", true],
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["browser.tabs.delayHidingAudioPlayingIconMS", 0],
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]});
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}
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function createAudioContext() {
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content.ac = new content.AudioContext();
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const ac = content.ac;
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const dest = ac.destination;
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const osc = ac.createOscillator();
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osc.connect(dest);
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osc.start();
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}
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async function resumeAudioContext() {
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const ac = content.ac;
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await ac.resume();
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ok(true, "AudioContext is resumed.");
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}
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async function testResumeRunningAudioContext() {
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info(`- create new tab -`);
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const tab = await BrowserTestUtils.openNewForegroundTab(window.gBrowser,
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"about:blank");
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const browser = tab.linkedBrowser;
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info(`- create audio context -`);
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// We want the same audio context to be used across different content
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// tasks, so it needs to be loaded by a frame script.
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const mm = tab.linkedBrowser.messageManager;
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mm.loadFrameScript("data:,(" + createAudioContext.toString() + ")();", false);
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info(`- wait for 'sound-playing' icon showing -`);
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await waitForTabPlayingEvent(tab, true);
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info(`- resume AudioContext -`);
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await ContentTask.spawn(browser, null,
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resumeAudioContext);
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info(`- 'sound-playing' icon should still exist -`);
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await waitForTabPlayingEvent(tab, true);
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info(`- remove tab -`);
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await BrowserTestUtils.removeTab(tab);
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}
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add_task(async function start_test() {
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info("- setup test preference -");
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await setup_test_preference();
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info("- start testing -");
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await testResumeRunningAudioContext();
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});
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