/**
* A publisher closedExceptionally reports isClosed with the closedException and throws ISE upon
* attempted submission; a subsequent close or closeExceptionally has no additional effect.
*/
public void testCloseExceptionally() {
SubmissionPublisher<Integer> p = basicPublisher();
checkInitialState(p);
Throwable ex = new SPException();
p.closeExceptionally(ex);
assertTrue(p.isClosed());
assertSame(p.getClosedException(), ex);
try {
p.submit(1);
shouldThrow();
} catch (IllegalStateException success) {
}
p.close();
assertTrue(p.isClosed());
assertSame(p.getClosedException(), ex);
}
/** If closedExceptionally, upon subscription, the subscriber's onError method is invoked */
public void testSubscribe3() {
TestSubscriber s = new TestSubscriber();
SubmissionPublisher<Integer> p = basicPublisher();
Throwable ex = new SPException();
p.closeExceptionally(ex);
assertTrue(p.isClosed());
assertSame(p.getClosedException(), ex);
p.subscribe(s);
s.awaitError();
assertEquals(0, s.nexts);
assertEquals(1, s.errors);
}
/**
* A new SubmissionPublisher has no subscribers, a non-null executor, a power-of-two capacity, is
* not closed, and reports zero demand and lag
*/
void checkInitialState(SubmissionPublisher<?> p) {
assertFalse(p.hasSubscribers());
assertEquals(0, p.getNumberOfSubscribers());
assertTrue(p.getSubscribers().isEmpty());
assertFalse(p.isClosed());
assertNull(p.getClosedException());
int n = p.getMaxBufferCapacity();
assertTrue((n & (n - 1)) == 0); // power of two
assertNotNull(p.getExecutor());
assertEquals(0, p.estimateMinimumDemand());
assertEquals(0, p.estimateMaximumLag());
}
/** Closing a publisher causes onComplete to subscribers */
public void testCloseCompletes() {
SubmissionPublisher<Integer> p = basicPublisher();
TestSubscriber s1 = new TestSubscriber();
TestSubscriber s2 = new TestSubscriber();
p.subscribe(s1);
p.subscribe(s2);
p.submit(1);
p.close();
assertTrue(p.isClosed());
assertNull(p.getClosedException());
s1.awaitComplete();
assertEquals(1, s1.nexts);
assertEquals(1, s1.completes);
s2.awaitComplete();
assertEquals(1, s2.nexts);
assertEquals(1, s2.completes);
}