ex2.setValue(2);
in2.add(ex2);
ex2.setValue(10);
in2.add(ex2);
assertThat(tester.runFlow(new MasterBranchFlowSelection(
in1.flow(), in2.flow(),
high.flow(), low.flow(), stop.flow())), is(true));
List<Ex1> highList = high.toList();
List<Ex1> lowList = low.toList();