public void UpdateModelValueCommand_Constructor()
        {
            //Arrange
            var cbn = CreateCodeBlockNode();
            IEnumerable <Guid> modelGuid = new[] { cbn.GUID };

            //Act
            //Executing the overloaded constructors
            var command1 = new UpdateModelValueCommand(cbn.GUID.ToString(), "nameModel", "valueModel");
            var command2 = new UpdateModelValueCommand(modelGuid, "nameModel", "valueModel");

            //Assert
            //Checking that the commands were created correctly
            Assert.IsNotNull(command1);
            Assert.IsNotNull(command2);
            Assert.Throws <NotImplementedException>(() => command1.ToString());
        }