public class DefaultRetryerTest {
@Test(expectedExceptions = RetryableException.class)
public void only5TriesAllowedAndExponentialBackoff() throws Exception {
RetryableException e = new RetryableException(null, null, null);
Default retryer = new Retryer.Default();
assertEquals(retryer.attempt, 1);
assertEquals(retryer.sleptForMillis, 0);
retryer.continueOrPropagate(e);
assertEquals(retryer.attempt, 2);
assertEquals(retryer.sleptForMillis, 150);
retryer.continueOrPropagate(e);
assertEquals(retryer.attempt, 3);
assertEquals(retryer.sleptForMillis, 375);
retryer.continueOrPropagate(e);
assertEquals(retryer.attempt, 4);
assertEquals(retryer.sleptForMillis, 712);
retryer.continueOrPropagate(e);
assertEquals(retryer.attempt, 5);
assertEquals(retryer.sleptForMillis, 1218);
retryer.continueOrPropagate(e);
// fail
}