use of com.hazelcast.internal.eviction.EvictionChecker.EVICT_ALWAYS in project hazelcast by hazelcast.
the class EvictionStrategyTest method evictionPolicySuccessfullyEvaluatedOnSamplingBasedEvictionStrategy.
@Test
public void evictionPolicySuccessfullyEvaluatedOnSamplingBasedEvictionStrategy() {
final int recordCount = 100;
final int expectedEvictedRecordValue = recordCount / 2;
Node node = getNode(instance);
SerializationService serializationService = node.getSerializationService();
ICacheService cacheService = node.getNodeEngine().getService(ICacheService.SERVICE_NAME);
CacheContext cacheContext = cacheService.getOrCreateCacheContext("MyCache");
SamplingEvictionStrategy<K, V, S> evictionStrategy = SamplingEvictionStrategy.INSTANCE;
CacheRecordHashMap cacheRecordMap = new CacheRecordHashMap(serializationService, 1000, cacheContext);
CacheObjectRecord expectedEvictedRecord = null;
Data expectedData = null;
for (int i = 0; i < recordCount; i++) {
CacheObjectRecord record = new CacheObjectRecord(i, System.currentTimeMillis(), Long.MAX_VALUE);
Data data = serializationService.toData(i);
cacheRecordMap.put(data, record);
if (i == expectedEvictedRecordValue) {
expectedEvictedRecord = record;
expectedData = data;
}
}
assertNotNull(expectedEvictedRecord);
assertNotNull(expectedData);
final SimpleEvictionCandidate evictionCandidate = new SimpleEvictionCandidate((K) expectedData, (V) expectedEvictedRecord);
// we are testing "EvictionStrategy" in this test, so we mock "EvictionPolicyEvaluator" (it's tested in another test)
EvictionPolicyEvaluator evictionPolicyEvaluator = mock(EvictionPolicyEvaluator.class);
when(evictionPolicyEvaluator.evaluate(Matchers.any(Iterable.class))).thenReturn(evictionCandidate);
when(evictionPolicyEvaluator.getEvictionPolicyComparator()).thenReturn(null);
assertEquals(recordCount, cacheRecordMap.size());
assertTrue(cacheRecordMap.containsKey(expectedData));
assertTrue(cacheRecordMap.containsValue(expectedEvictedRecord));
boolean evicted = evictionStrategy.evict((S) cacheRecordMap, evictionPolicyEvaluator, EVICT_ALWAYS, NO_LISTENER);
assertTrue(evicted);
assertEquals(recordCount - 1, cacheRecordMap.size());
assertFalse(cacheRecordMap.containsKey(expectedData));
assertFalse(cacheRecordMap.containsValue(expectedEvictedRecord));
}
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