shaka-player/test/util/manifest_parser_utils_unit.js

/*! @license
 * Shaka Player
 * Copyright 2016 Google LLC
 * SPDX-License-Identifier: Apache-2.0
 */

describe('ManifestParserUtils', () => {
  const ManifestParserUtils = shaka.util.ManifestParserUtils;

  describe('guessCodecsSafe', () => {
    it('recognizes MPEG-2 video codec (mp2v)', () => {
      const result = ManifestParserUtils.guessCodecsSafe(
          'video', ['mp2v']);
      expect(result).toBe('mp2v');
    });

    it('returns mp2v from mixed codec list', () => {
      const result = ManifestParserUtils.guessCodecsSafe(
          'video', ['mp4a.40.2', 'mp2v']);
      expect(result).toBe('mp2v');
    });

    it('does not match mp2v as audio', () => {
      const result = ManifestParserUtils.guessCodecsSafe(
          'audio', ['mp2v']);
      expect(result).toBeNull();
    });

    it('recognizes DTS audio codec', () => {
      const result = ManifestParserUtils.guessCodecsSafe(
          'audio', ['dts']);
      expect(result).toBe('dts');
    });

    it('recognizes DTS-HD (dtsh) audio codec', () => {
      const result = ManifestParserUtils.guessCodecsSafe(
          'audio', ['dtsh']);
      expect(result).toBe('dtsh');
    });

    it('recognizes DTS Digital Surround (dtsc)', () => {
      const result = ManifestParserUtils.guessCodecsSafe(
          'audio', ['dtsc']);
      expect(result).toBe('dtsc');
    });

    it('recognizes DTS Express (dtse)', () => {
      const result = ManifestParserUtils.guessCodecsSafe(
          'audio', ['dtse']);
      expect(result).toBe('dtse');
    });

    it('recognizes DTS:X (dtsx)', () => {
      const result = ManifestParserUtils.guessCodecsSafe(
          'audio', ['dtsx']);
      expect(result).toBe('dtsx');
    });

    it('returns DTS variant from mixed codec list', () => {
      const result = ManifestParserUtils.guessCodecsSafe(
          'audio', ['avc1.42E01E', 'dtsh']);
      expect(result).toBe('dtsh');
    });

    it('does not match DTS codecs as video', () => {
      const result = ManifestParserUtils.guessCodecsSafe(
          'video', ['dts']);
      expect(result).toBeNull();
    });

    it('does not match invalid DTS-like strings', () => {
      const result = ManifestParserUtils.guessCodecsSafe(
          'audio', ['dtsz']);
      expect(result).toBeNull();
    });
  });

  describe('resolveUris', () => {
    it('resolves relative URIs', () => {
      const base = ['http://example.com/'];
      const relative = ['page.html'];
      const expected = ['http://example.com/page.html'];
      const actual = ManifestParserUtils.resolveUris(base, relative);
      expect(actual).toEqual(expected);
    });

    it('resolves URIs multiplicatively', () => {
      const base = ['http://example.com/', 'http://example.org'];
      const relative = ['page.html', 'site.css'];
      const expected = [
        'http://example.com/page.html',
        'http://example.com/site.css',
        'http://example.org/page.html',
        'http://example.org/site.css',
      ];
      const actual = ManifestParserUtils.resolveUris(base, relative);
      expect(actual).toEqual(expected);
    });

    it('returns base if no relative URIs', () => {
      const base = ['http://example.com'];
      const relative = [];
      const actual = ManifestParserUtils.resolveUris(base, relative);
      expect(actual).toEqual(base);
    });

    it('handles manifest file as base URI', () => {
      const base = [
        'http://example.com/manifest.mpd',
        'http://example.org/path/to/manifest.mpd',
      ];
      const relative = ['segment.mp4', 'other/location/segment.webm'];
      const expected = [
        'http://example.com/segment.mp4',
        'http://example.com/other/location/segment.webm',
        'http://example.org/path/to/segment.mp4',
        'http://example.org/path/to/other/location/segment.webm',
      ];
      const actual = ManifestParserUtils.resolveUris(base, relative);
      expect(actual).toEqual(expected);
    });
  });
});