/**
* Tests release method for entry in acquired state.
*
* <p>Entry in state ACQUIRED should be released and its status should be changed to AVAILABLE.
*/
public void testReleaseAquired() {
acquire();
_queueEntry.release();
assertTrue(
"Queue entry should be in AVAILABLE state after invoking of release method",
_queueEntry.isAvailable());
}
/**
* Tests release method for entry in deleted state.
*
* <p>Invoking release on deleted entry should not have any effect on its state.
*/
public void testReleaseDeleted() {
delete();
_queueEntry.release();
assertTrue(
"Invoking of release on entry in DELETED state should not have any effect",
_queueEntry.isDeleted());
}
/**
* Tests release method for entry in dequeued state.
*
* <p>Invoking release on dequeued entry should not have any effect on its state.
*/
public void testReleaseDequeued() {
dequeue();
_queueEntry.release();
EntryState state = getState();
assertEquals(
"Invoking of release on entry in DEQUEUED state should not have any effect",
QueueEntry.DEQUEUED_STATE,
state);
}
/** A helper method to put tested entry into dequeue state and assert the sate */
private void dequeue() {
acquire();
_queueEntry.dequeue();
EntryState state = getState();
assertEquals(
"Queue entry should be in DEQUEUED state after invoking of dequeue method",
QueueEntry.DEQUEUED_STATE,
state);
}
/** Tests if entries in DEQUQUED or DELETED state are not returned by getNext method. */
public void testGetNext() {
int numberOfEntries = 5;
QueueEntryImpl[] entries = new QueueEntryImpl[numberOfEntries];
SimpleQueueEntryList queueEntryList = new SimpleQueueEntryList(new MockAMQQueue("test"));
// create test entries
for (int i = 0; i < numberOfEntries; i++) {
AMQMessage message = null;
;
try {
message = new MockAMQMessage(i);
} catch (AMQException e) {
fail("Failure to create a mock message:" + e.getMessage());
}
QueueEntryImpl entry = (QueueEntryImpl) queueEntryList.add(message);
entries[i] = entry;
}
// test getNext for not acquired entries
for (int i = 0; i < numberOfEntries; i++) {
QueueEntryImpl queueEntry = entries[i];
QueueEntryImpl next = queueEntry.getNext();
if (i < numberOfEntries - 1) {
assertEquals("Unexpected entry from QueueEntryImpl#getNext()", entries[i + 1], next);
} else {
assertNull("The next entry after the last should be null", next);
}
}
// delete second
entries[1].acquire();
entries[1].delete();
// dequeue third
entries[2].acquire();
entries[2].dequeue();
QueueEntryImpl next = entries[0].getNext();
assertEquals("expected forth entry", entries[3], next);
next = next.getNext();
assertEquals("expected fifth entry", entries[4], next);
next = next.getNext();
assertNull("The next entry after the last should be null", next);
}
public void testAquire() {
assertTrue(
"Queue entry should be in AVAILABLE state before invoking of acquire method",
_queueEntry.isAvailable());
acquire();
}
/** A helper method to put tested entry into acquired state and assert the sate */
private void acquire() {
_queueEntry.acquire(new MockSubscription());
assertTrue(
"Queue entry should be in ACQUIRED state after invoking of acquire method",
_queueEntry.isAcquired());
}
/** A helper method to put tested object into deleted state and assert the state */
private void delete() {
_queueEntry.delete();
assertTrue(
"Queue entry should be in DELETED state after invoking of delete method",
_queueEntry.isDeleted());
}
