text: import assert from 'assert';
  import cheerio from 'cheerio';
  
  import HTML from './fixtures/extract-from-selectors';
  import { extractFromMeta } from './index';
  
  describe('extractFromMeta($, metaNames, cachedNames, cleanTags)', () => {
    it('extracts an arbitrary meta tag by name', () => {
      const $ = cheerio.load(HTML.metaFoo.test);
      const result = extractFromMeta($, ['foo', 'baz'], ['foo', 'bat']);
  
      assert.equal(result, HTML.metaFoo.result);
    });
  
    it('returns nothing if a meta name is duplicated', () => {
      const $ = cheerio.load(HTML.metaDupes.test);
      const result = extractFromMeta($, ['foo', 'baz'], ['foo', 'bat']);
  
      assert.equal(result, HTML.metaDupes.result);
    });
  
    it('ignores duplicate meta names with empty values', () => {
      const $ = cheerio.load(HTML.metaEmptyDupes.test);
      const result = extractFromMeta($, ['foo', 'baz'], ['foo', 'bat']);
  
      assert.equal(result, HTML.metaEmptyDupes.result);
    });
  });
  