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shaka-player/test/util/stream_utils_unit.js
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Joey Parrish 529e97fbf2 [ES6] Configure eslint with Google style checks
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Issue #1157

Change-Id: Ie27be6ec6632b7786a1f9ebc32911ba9dcd42599
2018-01-18 00:01:05 +00:00

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JavaScript

/**
* @license
* Copyright 2016 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
describe('StreamUtils', function() {
var manifest;
var filterVariantsByLanguageAndRole =
shaka.util.StreamUtils.filterVariantsByLanguageAndRole;
var filterStreamsByLanguageAndRole =
shaka.util.StreamUtils.filterStreamsByLanguageAndRole;
describe('filterVariantsByLanguageAndRole', function() {
it('chooses variants in user\'s preferred language', function() {
manifest = new shaka.test.ManifestGenerator()
.addPeriod(0)
.addVariant(0)
.language('es')
.addVariant(1)
.language('en')
.addVariant(2)
.language('en')
.build();
var chosen = filterVariantsByLanguageAndRole(
manifest.periods[0].variants,
'en',
'');
expect(chosen.length).toBe(2);
expect(chosen[0]).toBe(manifest.periods[0].variants[1]);
expect(chosen[1]).toBe(manifest.periods[0].variants[2]);
});
it('prefers primary variants', function() {
manifest = new shaka.test.ManifestGenerator()
.addPeriod(0)
.addVariant(0)
.primary()
.addVariant(1)
.addVariant(2)
.addVariant(3)
.primary()
.build();
var chosen = filterVariantsByLanguageAndRole(
manifest.periods[0].variants,
'en',
'');
expect(chosen.length).toBe(2);
expect(chosen[0]).toBe(manifest.periods[0].variants[0]);
expect(chosen[1]).toBe(manifest.periods[0].variants[3]);
});
it('filters out resctricted variants', function() {
manifest = new shaka.test.ManifestGenerator()
.addPeriod(0)
.addVariant(0)
.addVariant(1)
.addVariant(2)
.build();
manifest.periods[0].variants[0].allowedByKeySystem = false;
manifest.periods[0].variants[1].allowedByApplication = false;
var chosen = filterVariantsByLanguageAndRole(
manifest.periods[0].variants,
'en',
'');
expect(chosen.length).toBe(1);
expect(chosen[0]).toBe(manifest.periods[0].variants[2]);
});
it('chooses variants in preferred language and role', function() {
manifest = new shaka.test.ManifestGenerator()
.addPeriod(0)
.addVariant(0)
.language('en')
.addAudio(0).roles(['main', 'commentary'])
.addVariant(1)
.language('en')
.addAudio(1).roles(['secondary'])
.addVariant(2)
.language('es')
.addAudio(2).roles(['main'])
.build();
var chosen = filterVariantsByLanguageAndRole(
manifest.periods[0].variants,
'en',
'main');
expect(chosen.length).toBe(1);
expect(chosen[0]).toBe(manifest.periods[0].variants[0]);
});
it('chooses only one role, even if none is preferred', function() {
// Regression test for https://github.com/google/shaka-player/issues/949
manifest = new shaka.test.ManifestGenerator()
.addPeriod(0)
.addVariant(0)
.language('en')
.addAudio(0).roles(['commentary'])
.addVariant(1)
.language('en')
.addAudio(1).roles(['commentary'])
.addVariant(2)
.language('en')
.addAudio(2).roles(['secondary'])
.addVariant(3)
.language('en')
.addAudio(3).roles(['secondary'])
.addVariant(4)
.language('en')
.addAudio(4).roles(['main'])
.addVariant(5)
.language('en')
.addAudio(5).roles(['main'])
.build();
var chosen = filterVariantsByLanguageAndRole(
manifest.periods[0].variants,
'en',
'');
// Which role is chosen is an implementation detail.
// Each role is found on two variants, so we should have two.
expect(chosen.length).toBe(2);
expect(chosen[0].audio.roles[0]).toEqual(chosen[1].audio.roles[0]);
});
it('chooses only one role, even if all are primary', function() {
// Regression test for https://github.com/google/shaka-player/issues/949
manifest = new shaka.test.ManifestGenerator()
.addPeriod(0)
.addVariant(0)
.language('en').primary()
.addAudio(0).roles(['commentary'])
.addVariant(1)
.language('en').primary()
.addAudio(1).roles(['commentary'])
.addVariant(2)
.language('en').primary()
.addAudio(2).roles(['secondary'])
.addVariant(3)
.language('en').primary()
.addAudio(3).roles(['secondary'])
.addVariant(4)
.language('en').primary()
.addAudio(4).roles(['main'])
.addVariant(5)
.language('en').primary()
.addAudio(5).roles(['main'])
.build();
var chosen = filterVariantsByLanguageAndRole(
manifest.periods[0].variants,
'zh',
'');
// Which role is chosen is an implementation detail.
// Each role is found on two variants, so we should have two.
expect(chosen.length).toBe(2);
expect(chosen[0].audio.roles[0]).toEqual(chosen[1].audio.roles[0]);
});
it('chooses only one language, even if all are primary', function() {
// Regression test for https://github.com/google/shaka-player/issues/918
manifest = new shaka.test.ManifestGenerator()
.addPeriod(0)
.addVariant(0)
.language('en').primary()
.addAudio(0)
.addVariant(1)
.language('en').primary()
.addAudio(1)
.addVariant(2)
.language('es').primary()
.addAudio(2)
.addVariant(3)
.language('es').primary()
.addAudio(3)
.build();
var chosen = filterVariantsByLanguageAndRole(
manifest.periods[0].variants,
'zh',
'');
// Which language is chosen is an implementation detail.
// Each role is found on two variants, so we should have two.
expect(chosen.length).toBe(2);
expect(chosen[0].language).toEqual(chosen[1].language);
});
it('chooses a role from among primary variants without language match',
function() {
manifest = new shaka.test.ManifestGenerator()
.addPeriod(0)
.addVariant(0)
.language('en').primary()
.addAudio(0).roles(['commentary'])
.addVariant(1)
.language('en').primary()
.addAudio(1).roles(['commentary'])
.addVariant(2)
.language('en')
.addAudio(2).roles(['secondary'])
.addVariant(3)
.language('en')
.addAudio(3).roles(['secondary'])
.addVariant(4)
.language('en').primary()
.addAudio(4).roles(['main'])
.addVariant(5)
.language('en').primary()
.addAudio(5).roles(['main'])
.build();
var chosen = filterVariantsByLanguageAndRole(
manifest.periods[0].variants,
'zh',
'');
// Which role is chosen is an implementation detail.
// Each role is found on two variants, so we should have two.
expect(chosen.length).toBe(2);
expect(chosen[0].audio.roles[0]).toEqual(chosen[1].audio.roles[0]);
// Since nothing matches our language preference, we chose primary
// variants.
expect(chosen[0].primary).toBe(true);
expect(chosen[1].primary).toBe(true);
});
it('chooses a role from best language match, in spite of primary',
function() {
manifest = new shaka.test.ManifestGenerator()
.addPeriod(0)
.addVariant(0)
.language('en').primary()
.addAudio(0).roles(['commentary'])
.addVariant(1)
.language('en').primary()
.addAudio(1).roles(['commentary'])
.addVariant(2)
.language('zh')
.addAudio(2).roles(['secondary'])
.addVariant(3)
.language('zh')
.addAudio(3).roles(['secondary'])
.addVariant(4)
.language('en').primary()
.addAudio(4).roles(['main'])
.addVariant(5)
.language('en').primary()
.addAudio(5).roles(['main'])
.build();
var chosen = filterVariantsByLanguageAndRole(
manifest.periods[0].variants,
'zh',
'');
expect(chosen.length).toBe(2);
expect(chosen[0].language).toBe('zh');
expect(chosen[1].language).toBe('zh');
expect(chosen[0].primary).toBe(false);
expect(chosen[1].primary).toBe(false);
});
});
describe('filterStreamsByLanguageAndRole', function() {
it('chooses text streams in user\'s preferred language', function() {
manifest = new shaka.test.ManifestGenerator()
.addPeriod(0)
.addTextStream(1)
.language('en')
.addTextStream(2)
.language('es')
.addTextStream(3)
.language('en')
.build();
var chosen = filterStreamsByLanguageAndRole(
manifest.periods[0].textStreams,
'en',
'');
expect(chosen.length).toBe(2);
expect(chosen[0]).toBe(manifest.periods[0].textStreams[0]);
expect(chosen[1]).toBe(manifest.periods[0].textStreams[2]);
});
it('chooses primary text streams', function() {
manifest = new shaka.test.ManifestGenerator()
.addPeriod(0)
.addTextStream(1)
.addTextStream(2)
.primary()
.addTextStream(3)
.primary()
.build();
var chosen = filterStreamsByLanguageAndRole(
manifest.periods[0].textStreams,
'en',
'');
expect(chosen.length).toBe(2);
expect(chosen[0]).toBe(manifest.periods[0].textStreams[1]);
expect(chosen[1]).toBe(manifest.periods[0].textStreams[2]);
});
it('chooses text streams in preferred language and role', function() {
manifest = new shaka.test.ManifestGenerator()
.addPeriod(0)
.addTextStream(1)
.language('en')
.roles(['main', 'commentary'])
.addTextStream(2)
.language('es')
.addTextStream(3)
.language('en')
.roles(['caption'])
.build();
var chosen = filterStreamsByLanguageAndRole(
manifest.periods[0].textStreams,
'en',
'main');
expect(chosen.length).toBe(1);
expect(chosen[0]).toBe(manifest.periods[0].textStreams[0]);
});
it('prefers no-role streams if there is no preferred role', function() {
manifest = new shaka.test.ManifestGenerator()
.addPeriod(0)
.addTextStream(0)
.language('en')
.roles(['commentary'])
.addTextStream(1)
.language('en')
.addTextStream(2)
.language('en')
.roles(['secondary'])
.build();
var chosen = filterStreamsByLanguageAndRole(
manifest.periods[0].textStreams,
'en',
'');
expect(chosen.length).toBe(1);
expect(chosen[0].roles.length).toBe(0); // Pick a stream with no role.
});
it('ignores no-role streams if there is a preferred role', function() {
manifest = new shaka.test.ManifestGenerator()
.addPeriod(0)
.addTextStream(0)
.language('en')
.roles(['commentary'])
.addTextStream(1)
.language('en')
.addTextStream(2)
.language('en')
.roles(['secondary'])
.build();
var chosen = filterStreamsByLanguageAndRole(
manifest.periods[0].textStreams,
'en',
'main'); // A role that is not present.
expect(chosen.length).toBe(1);
expect(chosen[0].roles.length).toBe(1); // Pick a stream with a role.
});
it('chooses only one role, even if none is preferred', function() {
// Regression test for https://github.com/google/shaka-player/issues/949
manifest = new shaka.test.ManifestGenerator()
.addPeriod(0)
.addTextStream(0)
.language('en')
.roles(['commentary'])
.addTextStream(1)
.language('en')
.roles(['commentary'])
.addTextStream(2)
.language('en')
.roles(['secondary'])
.addTextStream(3)
.language('en')
.roles(['secondary'])
.addTextStream(4)
.language('en')
.roles(['main'])
.addTextStream(5)
.language('en')
.roles(['main'])
.build();
var chosen = filterStreamsByLanguageAndRole(
manifest.periods[0].textStreams,
'en',
'');
// Which role is chosen is an implementation detail.
// Each role is found on two text streams, so we should have two.
expect(chosen.length).toBe(2);
expect(chosen[0].roles[0]).toEqual(chosen[1].roles[0]);
});
it('chooses only one role, even if all are primary', function() {
// Regression test for https://github.com/google/shaka-player/issues/949
manifest = new shaka.test.ManifestGenerator()
.addPeriod(0)
.addTextStream(0)
.language('en').primary()
.roles(['commentary'])
.addTextStream(1)
.language('en').primary()
.roles(['commentary'])
.addTextStream(2)
.language('en').primary()
.roles(['secondary'])
.addTextStream(3)
.language('en').primary()
.roles(['secondary'])
.addTextStream(4)
.language('en').primary()
.roles(['main'])
.addTextStream(5)
.language('en').primary()
.roles(['main'])
.build();
var chosen = filterStreamsByLanguageAndRole(
manifest.periods[0].textStreams,
'zh',
'');
// Which role is chosen is an implementation detail.
// Each role is found on two text streams, so we should have two.
expect(chosen.length).toBe(2);
expect(chosen[0].roles[0]).toEqual(chosen[1].roles[0]);
});
it('chooses only one language, even if all are primary', function() {
// Regression test for https://github.com/google/shaka-player/issues/918
manifest = new shaka.test.ManifestGenerator()
.addPeriod(0)
.addTextStream(0)
.language('en').primary()
.addTextStream(1)
.language('en').primary()
.addTextStream(2)
.language('es').primary()
.addTextStream(3)
.language('es').primary()
.build();
var chosen = filterStreamsByLanguageAndRole(
manifest.periods[0].textStreams,
'zh',
'');
// Which language is chosen is an implementation detail.
// Each role is found on two variants, so we should have two.
expect(chosen.length).toBe(2);
expect(chosen[0].language).toEqual(chosen[1].language);
});
it('chooses a role from among primary streams without language match',
function() {
manifest = new shaka.test.ManifestGenerator()
.addPeriod(0)
.addTextStream(0)
.language('en').primary()
.roles(['commentary'])
.addTextStream(1)
.language('en').primary()
.roles(['commentary'])
.addTextStream(2)
.language('en')
.roles(['secondary'])
.addTextStream(3)
.language('en')
.roles(['secondary'])
.addTextStream(4)
.language('en').primary()
.roles(['main'])
.addTextStream(5)
.language('en').primary()
.roles(['main'])
.build();
var chosen = filterStreamsByLanguageAndRole(
manifest.periods[0].textStreams,
'zh',
'');
// Which role is chosen is an implementation detail.
// Each role is found on two text streams, so we should have two.
expect(chosen.length).toBe(2);
expect(chosen[0].roles[0]).toEqual(chosen[1].roles[0]);
// Since nothing matches our language preference, we chose primary
// text streams.
expect(chosen[0].primary).toBe(true);
expect(chosen[1].primary).toBe(true);
});
it('chooses a role from best language match, in spite of primary',
function() {
manifest = new shaka.test.ManifestGenerator()
.addPeriod(0)
.addTextStream(0)
.language('en').primary()
.roles(['commentary'])
.addTextStream(1)
.language('en').primary()
.roles(['commentary'])
.addTextStream(2)
.language('zh')
.roles(['secondary'])
.addTextStream(3)
.language('zh')
.roles(['secondary'])
.addTextStream(4)
.language('en').primary()
.roles(['main'])
.addTextStream(5)
.language('en').primary()
.roles(['main'])
.build();
var chosen = filterStreamsByLanguageAndRole(
manifest.periods[0].textStreams,
'zh',
'');
expect(chosen.length).toBe(2);
expect(chosen[0].language).toBe('zh');
expect(chosen[1].language).toBe('zh');
expect(chosen[0].primary).toBe(false);
expect(chosen[1].primary).toBe(false);
});
});
describe('filterNewPeriod', function() {
var fakeDrmEngine;
beforeAll(function() {
fakeDrmEngine = new shaka.test.FakeDrmEngine();
});
it('filters text streams with the full MIME type', function() {
manifest = new shaka.test.ManifestGenerator()
.addPeriod(0)
.addTextStream(1).mime('text/vtt')
.addTextStream(2).mime('application/mp4', 'wvtt')
.addTextStream(3).mime('text/bogus')
.addTextStream(4).mime('application/mp4', 'bogus')
.build();
var noAudio = null;
var noVideo = null;
shaka.util.StreamUtils.filterNewPeriod(
fakeDrmEngine, noAudio, noVideo, manifest.periods[0]);
// Covers a regression in which we would remove streams with codecs.
// The last two streams should be removed because their full MIME types
// are bogus.
expect(manifest.periods[0].textStreams.length).toBe(2);
var textStreams = manifest.periods[0].textStreams;
expect(textStreams[0].id).toBe(1);
expect(textStreams[1].id).toBe(2);
});
});
});