public void Assert() =>
 _expected
 .Build()
 .AsSource()
 .OfLikeness <Schedule>()
 .With(s => s.StartUtc).EqualsWhen((a, b) => Equals(a.StartUtc, b.StartUtc))
 .ShouldEqual(_result);
 public TestContext Act()
 {
     _result = _sut.Build();
     return(this);
 }