Ex1 model = new Ex1();
model.setValue(0);
in.add(model);
boolean result = tester.runFlow(new SplitStage(in.flow(), out1.flow(), out2.flow()));
assertThat(result, is(true));
assertThat(out1.toList().size(), is(1));
assertThat(out2.toList().size(), is(1));
}