public void testHit() {
ObjectStorage storage = mock(ObjectStorage.class);
ByteCache cache =
(ByteCache)
Wrapping.getFactory(
new Signature(null, Object.class), new Signature(null, byte.class), false)
.wrap("123", CALCULATABLE, storage, new MutableStatisticsImpl());
cache.setDependencyNode(DependencyTracker.DUMMY_NODE);
when(storage.load()).thenReturn((byte) 42);
when(storage.size()).thenReturn(1);
assert cache.getSize() == 1;
assert cache.getStatistics().getHits() == 0;
assert cache.getStatistics().getMisses() == 0;
assert cache.getOrCreate() == (byte) 42;
verify(storage).size();
verify(storage, atLeast(1)).load();
verifyNoMoreInteractions(storage);
assert cache.getStatistics().getHits() == 1;
assert cache.getStatistics().getMisses() == 0;
}
public void testSetDuringDependencyNodeOperations() {
ObjectStorage storage = mock(ObjectStorage.class);
when(storage.load()).thenReturn(Storage.UNDEFINED, (byte) 42);
ByteCalculatable calculatable = mock(ByteCalculatable.class);
MxResource r = mock(MxResource.class);
when(calculatable.calculate("123")).thenThrow(new ResourceOccupied(r));
ByteCache cache =
(ByteCache)
Wrapping.getFactory(
new Signature(null, Object.class), new Signature(null, byte.class), false)
.wrap("123", calculatable, storage, new MutableStatisticsImpl());
cache.setDependencyNode(DependencyTracker.DUMMY_NODE);
assert cache.getStatistics().getHits() == 0;
assert cache.getStatistics().getMisses() == 0;
assert cache.getOrCreate() == (byte) 42;
assert cache.getStatistics().getHits() == 1;
assert cache.getStatistics().getMisses() == 0;
verify(storage, atLeast(2)).load();
verifyNoMoreInteractions(storage);
verify(calculatable).calculate("123");
verifyNoMoreInteractions(calculatable);
}
public void testClear() {
ObjectStorage storage = mock(ObjectStorage.class);
ByteCache cache =
(ByteCache)
Wrapping.getFactory(
new Signature(null, Object.class), new Signature(null, byte.class), false)
.wrap("123", CALCULATABLE, storage, new MutableStatisticsImpl());
cache.setDependencyNode(DependencyTracker.DUMMY_NODE);
cache.clear();
verify(storage).clear();
verifyNoMoreInteractions(storage);
}