public void testEvictionExceptionRecovery() throws CacheEvictionException {
final CachePolicy cache = new MRU(1);
final Object oldKey = "to-be-evicted";
final Object newKey = "insert-attempt";
{ // null test
cache.removeAll();
cache.put(oldKey, new Object());
assertNotNull(cache.get(oldKey));
cache.put(newKey, new Object());
assertNull(cache.get(oldKey));
assertNotNull(cache.get(newKey));
}
{ // stability test.
cache.removeAll();
cache.addListener(new ThrowingListener());
cache.put(oldKey, new Object());
assertNotNull(cache.get(oldKey));
try {
cache.put(newKey, new Object());
fail("Did not propagate expected exception.");
} catch (CacheEvictionException cex) {
assertNotNull("old object missing after eviction exception!", cache.get(oldKey));
assertNull(
"new key -> object mapping added even when eviction exception!", cache.get(newKey));
}
}
}
