@Test
public void testShouldContinue() {
TruncatedBinaryBackoff backoff =
new TruncatedBinaryBackoff(
Amount.of(1L, Time.MILLISECONDS), Amount.of(6L, Time.MILLISECONDS), true);
assertTrue(backoff.shouldContinue(0));
assertTrue(backoff.shouldContinue(1));
assertTrue(backoff.shouldContinue(2));
assertTrue(backoff.shouldContinue(4));
assertFalse(backoff.shouldContinue(6));
assertFalse(backoff.shouldContinue(8));
}
@Test
public void testCalculateBackoffMs() {
TruncatedBinaryBackoff backoff =
new TruncatedBinaryBackoff(
Amount.of(1L, Time.MILLISECONDS), Amount.of(12L, Time.MILLISECONDS));
try {
backoff.calculateBackoffMs(-1L);
fail("calculateBackoffMs should throw an exception when give a negative value.");
} catch (IllegalArgumentException e) {
// expected
}
long calculateBackoffMs0 = backoff.calculateBackoffMs(0);
assertTrue(1 <= calculateBackoffMs0 && calculateBackoffMs0 <= 2);
long calculateBackoffMs1 = backoff.calculateBackoffMs(1);
assertTrue(1 <= calculateBackoffMs1 && calculateBackoffMs1 <= 2);
long calculateBackoffMs2 = backoff.calculateBackoffMs(2);
assertTrue(2 <= calculateBackoffMs2 && calculateBackoffMs2 <= 4);
long calculateBackoffMs4 = backoff.calculateBackoffMs(4);
assertTrue(4 <= calculateBackoffMs4 && calculateBackoffMs4 <= 8);
long calculateBackoffMs8 = backoff.calculateBackoffMs(8);
assertTrue(8 <= calculateBackoffMs8 && calculateBackoffMs8 <= 12);
assertEquals(12, backoff.calculateBackoffMs(16));
}
@Test
public void testCalculateBackoffMs() {
TruncatedBinaryBackoff backoff =
new TruncatedBinaryBackoff(
Amount.of(1L, Time.MILLISECONDS), Amount.of(6L, Time.MILLISECONDS));
try {
backoff.calculateBackoffMs(-1L);
} catch (IllegalArgumentException e) {
// expected
}
assertEquals(1, backoff.calculateBackoffMs(0));
assertEquals(2, backoff.calculateBackoffMs(1));
assertEquals(4, backoff.calculateBackoffMs(2));
assertEquals(6, backoff.calculateBackoffMs(4));
assertEquals(6, backoff.calculateBackoffMs(8));
}
