public void SupportsBlocksThatAreBothSourceAndTarget()
        {
            var sourceNode         = new OneSourceNode <int>();
            var transformationNode = new TransformationNode <int, string>(i => i.ToString());
            var targetNode         = new OneTargetNode <string>();

            LinkNodes(sourceNode, transformationNode, targetNode);

            sourceNode.Post1(42);
            Assert.Equal("42", targetNode.EventuallyReceive1());
        }
        public void LinksSourceToTargetsOfAssignableType()
        {
            var sourceNodeV1  = new OneSourceNode <V1 <int, long> >();
            var targetNodeIV0 = new OneTargetNode <IV0 <int> >();
            var targetNodeIV1 = new OneTargetNode <IV1 <int, long> >();
            var message       = new V1 <int, long>(1, 2);

            LinkNodes(sourceNodeV1, targetNodeIV0, targetNodeIV1);

            sourceNodeV1.Post1(message);
            Assert.Equal(message.P1, targetNodeIV0.EventuallyReceive1().P1);
            Assert.Equal(message, targetNodeIV1.EventuallyReceive1());
        }