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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/. */
/* jshint esversion: 6, -W097 */
/* globals SimpleTest, SpecialPowers, info, is, ok */
"use strict";
function startTest(test) {
info(test.desc);
SimpleTest.waitForExplicitFinish();
SpecialPowers.pushPrefEnv({ 'set': test.prefs }, () => {
manager.runTests(test.tests, test.runTest);
});
}
/**
* @param {string} url video src.
* @returns {HTMLMediaElement} The created video element.
*/
function appendVideoToDoc(url, token, width, height) {
// Default size of (160, 120) is used by other media tests.
if (width === undefined) { width = 160; }
if (height === undefined) { height = 3*width/4; }
let v = document.createElement('video');
v.token = token;
document.body.appendChild(v);
v.width = width;
v.height = height;
v.src = url;
return v;
}
/**
* @param {HTMLMediaElement} video Video element under test.
* @returns {Promise} Promise that is resolved when video 'playing' event fires and rejected on error.
*/
function waitUntilPlaying(video) {
var p = once(video, 'playing', () => { ok(true, video.token + " played."); });
Log(video.token, "Start playing");
video.play();
return p;
}
/**
* @param {HTMLMediaElement} video Video element under test.
* @returns {Promise} Promise which is resolved when video 'ended' event fires.
*/
function waitUntilEnded(video) {
Log(video.token, "Waiting for ended");
if (video.ended) {
ok(true, video.token + " already ended");
return Promise.resolve();
}
return once(video, 'ended', () => { ok(true, video.token + " ended"); });
}
/**
* @param {HTMLMediaElement} video Video element under test.
* @returns {Promise} Promise that is resolved when video decode suspends.
*/
function testVideoSuspendsWhenHidden(video) {
let p = once(video, 'mozentervideosuspend').then(() => {
ok(true, video.token + " suspends");
});
Log(video.token, "Set hidden");
video.setVisible(false);
return p;
}
/**
* @param {HTMLMediaElement} video Video element under test.
* @returns {Promise} Promise that is resolved when video decode resumes.
*/
function testVideoResumesWhenShown(video) {
var p = once(video, 'mozexitvideosuspend').then(() => {
ok(true, video.token + " resumes");
});
Log(video.token, "Set visible");
video.setVisible(true);
return p;
}
/**
* @param {HTMLVideoElement} video Video element under test.
* @returns {Promise} Promise that is resolved if video ends and rejects if video suspends.
*/
function checkVideoDoesntSuspend(video) {
let p = Promise.race([
waitUntilEnded(video).then(() => { ok(true, video.token + ' ended before decode was suspended')}),
once(video, 'mozentervideosuspend', () => { Promise.reject(new Error(video.token + ' suspended')) })
]);
Log(video.token, "Set hidden.");
video.setVisible(false);
return p;
}
/**
* @param {HTMLMediaElement} video Video element under test.
* @param {number} time video current time to wait til.
* @returns {Promise} Promise that is resolved once currentTime passes time.
*/
function waitTil(video, time) {
Log(video.token, "Waiting for time to reach " + time + "s");
return new Promise(resolve => {
video.addEventListener('timeupdate', function timeUpdateEvent() {
if (video.currentTime > time) {
video.removeEventListener(name, timeUpdateEvent);
resolve();
}
});
});
}
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