text: const titleCase = require('./titleCase');
  
  describe('Title Case a Sentence', () => {
    it('should return a string.', () => {
      expect(titleCase('I\'m a little tea pot')).toEqual(expect.any(String));
    });
    it('should return "I\'m A Little Tea Pot" for "I\'m a little tea pot".', () => {
      expect(titleCase('I\'m a little tea pot')).toBe('I\'m A Little Tea Pot');
    });
    it('should should return "Short And Stout" for "sHoRt AnD sToUt".', () => {
      expect(titleCase('sHoRt AnD sToUt')).toBe('Short And Stout');
    });
    it('should return "Here Is My Handle Here Is My Spout" for "HERE IS MY HANDLE HERE IS MY SPOUT".', () => {
      expect(titleCase('HERE IS MY HANDLE HERE IS MY SPOUT')).toBe(
        'Here Is My Handle Here Is My Spout'
      );
    });
  });
  