public void maxAttemptsReached() {
FixedBackOff backOff = new FixedBackOff(200L, 2);
BackOffExecution execution = backOff.start();
assertEquals(200l, execution.nextBackOff());
assertEquals(200l, execution.nextBackOff());
assertEquals(BackOffExecution.STOP, execution.nextBackOff());
}
@Test
public void startReturnDifferentInstances() {
FixedBackOff backOff = new FixedBackOff(100L, 1);