text: const pathModule = require('path');
  const expect = require('../../unexpected-with-plugins');
  const AssetGraph = require('../../../lib/AssetGraph');
  
  describe('relations/HtmlAudio', function() {
    it('should handle a test case with existing <audio> tags', async function() {
      const assetGraph = new AssetGraph({
        root: pathModule.resolve(
          __dirname,
          '../../../testdata/relations/Html/HtmlAudio/'
        )
      });
      await assetGraph.loadAssets('index.html');
      await assetGraph.populate({
        startAssets: { type: 'Html' },
        followRelations: () => false
      });
  
      expect(assetGraph, 'to contain relations', 'HtmlAudio', 4);
  
      assetGraph.findAssets({ type: 'Html' })[0].url =
        'http://example.com/foo/bar.html';
      assetGraph.findRelations().forEach(function(relation) {
        relation.hrefType = 'relative';
      });
  
      expect(assetGraph.findRelations(), 'to satisfy', [
        { href: '../sound.mp3' },
        { href: '../sound.wav' },
        { href: '../sound.wma' },
        { href: '../sound.flac' }
      ]);
    });
  });
  