@Test
public void shouldRetryIfRetryableTaskThrowsUncheckedException() {
int maxRetries = 5;
String message = taskSerializer.serialize(new MockRetryableDeferredTask(maxRetries));
queueProvider.send(message);
for (int i = 0; i < maxRetries; i++) {
deferredTaskService.processQueue();
}
}
@Test
public void shouldWrapExceptionIfTaskThrowsUncheckedException() {
thrown.expect(ThundrDeferredException.class);
thrown.expectMessage("Running deferred task failed permanently. Reason: Expected baby!");
String message = taskSerializer.serialize(new MockExceptionThrowingDeferredTask());
queueProvider.send(message);
deferredTaskService.processQueue();
}
@Test
public void shouldSerializeTaskIntoMessage() {
deferredTaskService.defer(new MockDeferredTask());
ArgumentCaptor<String> captor = ArgumentCaptor.forClass(String.class);
verify(queueProvider, times(1)).send(captor.capture());
String message = taskSerializer.serialize(new MockDeferredTask());
assertThat(captor.getValue(), equalTo(message));
}
@Test
public void shouldThrowExceptionIfTaskClassNotFound() {
thrown.expect(ThundrDeferredException.class);
thrown.expectMessage("Unable to deserialize task from queue. Class foo.bar.MIA not found.");
String message =
"{\"taskClassName\":\"foo.bar.MIA\",\"taskData\":\"{\\\"field\\\":\\\"foo\\\"}\"}";
queueProvider.send(message);
deferredTaskService.processQueue();
}
@Test
public void shouldFailPermanentlyIfRetryableTaskExceedsMaxRetries() {
thrown.expect(ThundrDeferredException.class);
thrown.expectMessage("Max retries[2] exceeded. Giving up!");
int maxRetries = 2;
String message = taskSerializer.serialize(new MockRetryableDeferredTask(maxRetries));
queueProvider.send(message);
for (int i = 0; i < maxRetries; i++) {
deferredTaskService.processQueue();
}
}