text: const {query} = require('..');
  
  function q (description, args, result) {
    it(description, () => {
      expect(query(...args)).toEqual(result);
    });
  }
  
  describe('query()', () => {
    q('handles missing query',
      ['<foo><bar></bar></foo>'],
      []
    );
  
    q('handles basic query',
      ['<x><y>foo</y><y>bar</y></x>', '//y'],
      [
        {inner: 'foo', outer: '<y>foo</y>'},
        {inner: 'bar', outer: '<y>bar</y>'}
      ]
    );
  
    q('handles attribute query',
      ['<x><y foo="bar">foo</y><y hi="there">bar</y></x>', '//*[@foo="bar"]'],
      [
        {inner: 'foo', outer: '<y foo="bar">foo</y>'}
      ]
    );
  
    q('handles string query',
      ['<x><y>foo</y><y>bar</y></x>', 'substring(//y[1], 2)'],
      [
        {inner: 'oo', outer: 'oo'}
      ]
    );
  
    it('handles invalid query', () => {
      expect(() => query('<hi>there</hi>', '//[]')).toThrowError('Invalid XPath query: //[]');
    });
  });
  