private void Apply(UserUpdated @event)
 {
     Email = @event.Email;
       Comment = @event.Comment;
       IsApproved = @event.IsApproved;
 }
 public void UserUpdated()
 {
     var userId = Guid.NewGuid();
       var @event = new UserUpdated(userId, "email", true, "comment");
       Assert.AreEqual(userId, @event.AggregateId);
       Assert.AreEqual("email", @event.Email);
       Assert.IsTrue(@event.IsApproved);
       Assert.AreEqual("comment", @event.Comment);
 }