@Test
public void testPropagateExceptionsFromClose() {
final ScheduledExecutorService timerService = Executors.newSingleThreadScheduledExecutor();
try {
final CollectingOutput<Integer> out = new CollectingOutput<>();
final Object lock = new Object();
final StreamTask<?, ?> mockTask = createMockTaskWithTimer(timerService, lock);
WindowFunction<Integer, Integer, Integer, TimeWindow> failingFunction =
new FailingFunction(100);
// the operator has a window time that is so long that it will not fire in this test
final long hundredYears = 100L * 365 * 24 * 60 * 60 * 1000;
AccumulatingProcessingTimeWindowOperator<Integer, Integer, Integer> op =
new AccumulatingProcessingTimeWindowOperator<>(
failingFunction,
identitySelector,
IntSerializer.INSTANCE,
IntSerializer.INSTANCE,
hundredYears,
hundredYears);
op.setup(mockTask, new StreamConfig(new Configuration()), out);
op.open();
for (int i = 0; i < 150; i++) {
synchronized (lock) {
op.processElement(new StreamRecord<Integer>(i));
}
}
try {
synchronized (lock) {
op.close();
}
fail("This should fail with an exception");
} catch (Exception e) {
assertTrue(
e.getMessage().contains("Artificial Test Exception")
|| (e.getCause() != null
&& e.getCause().getMessage().contains("Artificial Test Exception")));
}
op.dispose();
} catch (Exception e) {
e.printStackTrace();
fail(e.getMessage());
} finally {
timerService.shutdown();
}
}
