System.out.printf("pri: %4d sec: %4d fail: %4d\n", primary.getCount(),
secondary.getCount(), failsink.getFails());
Assert.assertEquals(2, primary.getCount());
Assert.assertEquals(0, secondary.getCount());
mock.forward(100);
twiddle.setAppendOk(false); // go to fail over.
failsink.append(e); // primary fails and automatically go to 2ndary
System.out.println(mock);
System.out.printf("pri: %4d sec: %4d fail: %4d\n", primary.getCount(),
secondary.getCount(), failsink.getFails());