void testList() {
        def conn1 = Channel.one2one()
        def conn2 = Channel.one2one()

        def setsProducer = new GenerateSetsOfThree ( outChannel: conn1.out() )
        def L2S =  new ListToStream ( inChannel: conn1.in(), outChannel: conn2.out() )
        def setsConsumer = new CreateSetsOfEightTest ( inChannel: conn2.in(), length: 8 )

        def testList = [ setsProducer, L2S, setsConsumer ]

        new PAR(testList).run()

        assertTrue(setsConsumer.testList.size() == setsConsumer.length)
    }