public void Equals_should_call_equals_of_state()
        {
            var dateTime = DateTime.UtcNow;

            var parentId = "parent1";
            var childId  = "child1";

            var parentState = new ParentState().Apply(new ParentCreated(parentId, "test parent", dateTime));

            var childState = new ChildState().Apply(new ChildCreated(parentId, childId, "test child", dateTime))
                             .Apply(new ChildRenamed(parentId, childId, "test child renamed", dateTime));

            parentState.AsIAggregateRootStateInternal().AddChildState(childState);

            var parent = new ParentEntity(Array.Empty <IEvent>(), parentState);

            parent.FixDateTime(dateTime);

            var child = parent.GetChildEntity <ChildEntity>(childId);

            child.Equals(child.StateModel).Should().Be(true);

            var child2 = parent.GetChildEntity <ChildEntity>(childId);

            ReferenceEquals(child, child2).Should().Be(false);

            child.Equals(child2).Should().Be(true);

            child.Equals(null).Should().Be(false);
        }
        public void Can_add_child_entity_to_parent_entity_per_initial_state()
        {
            var dateTime = DateTime.UtcNow;

            var parentId = "parent1";
            var childId  = "child1";

            var parentState = new ParentState().Apply(new ParentCreated(parentId, "test parent", dateTime));

            var childState = new ChildState().Apply(new ChildCreated(parentId, childId, "test child", dateTime))
                             .Apply(new ChildRenamed(parentId, childId, "test child renamed", dateTime));

            parentState.AsIAggregateRootStateInternal().AddChildState(childState);

            var parent = new ParentEntity(Array.Empty <IEvent>(), parentState);

            parent.FixDateTime(dateTime);

            var child = parent.GetChildEntity <ChildEntity>(childId);

            child.StateModel.Name.Should().Be("test child renamed");

            var childStates = parent.StateModel.ChildStates.ToList();

            childStates[0].Should().Be(child.StateModel);
            (childStates[0] as ChildState).Name.Should().Be("test child renamed");
        }
        public void GetHashCode_should_be_the_state_hashcode()
        {
            var dateTime = DateTime.UtcNow;

            var parentId = "parent1";
            var childId  = "child1";

            var parentState = new ParentState().Apply(new ParentCreated(parentId, "test parent", dateTime));

            var childState = new ChildState().Apply(new ChildCreated(parentId, childId, "test child", dateTime))
                             .Apply(new ChildRenamed(parentId, childId, "test child renamed", dateTime));

            parentState.AsIAggregateRootStateInternal().AddChildState(childState);

            var parent = new ParentEntity(Array.Empty <IEvent>(), parentState);

            parent.FixDateTime(dateTime);

            var child = parent.GetChildEntity <ChildEntity>(childId);

            child.GetHashCode().Should().Be(child.StateModel.GetHashCode());
        }