anchor.diff:                lessThan(epsilon));
       });
   
  -    test("should return time provided by custom TimeFunction", () {
  +    test('should return time provided by custom TimeFunction', () {
         var time = new DateTime(2013);
         var fixedClock = new Clock(() => time);
         expect(fixedClock.now(), new DateTime(2013));
  
positive.code:           microseconds: 1000), new DateTime(2012, 12, 30, 22, 58, 58, 998));
      });
  
      test("should return time parts from now", () {
        expect(subject.fromNow(
            days: 1,
            hours: 1,
  
negative.code:       expectDate(subject.yearsAgo(2013), 0, 1, 1);
      });
  
      test('should return time years from now on the same date', () {
        expectDate(subject.yearsFromNow(1), 2014, 1, 1);
        expectDate(subject.yearsFromNow(2), 2015, 1, 1);
        expectDate(subject.yearsFromNow(3), 2016, 1, 1);
  