/**
* Test statistics enabling/disabling/clearing
*
* @throws InterruptedException
*/
@Test
public void testCacheUsageStatistics() throws InterruptedException {
// Set size so the second element overflows to disk.
Cache cache = new Cache("test", 1, true, false, 5, 2);
manager.addCache(cache);
// add as a listener
AnotherStatistics anotherStats = new AnotherStatistics();
cache.registerCacheUsageListener(anotherStats);
cache.setStatisticsEnabled(true);
doTestCacheUsageStatistics(cache, true, anotherStats);
// test enable/disable statistics
cache.setStatisticsEnabled(false);
doTestCacheUsageStatistics(cache, false, anotherStats);
// remove the listener
cache.removeCacheUsageListener(anotherStats);
// enable statistics but don't check stats as no longer a listener
cache.setStatisticsEnabled(true);
doTestCacheUsageStatistics(cache, false, anotherStats);
assertEquals(
Statistics.STATISTICS_ACCURACY_BEST_EFFORT,
cache.getLiveCacheStatistics().getStatisticsAccuracy());
assertEquals("Best Effort", cache.getLiveCacheStatistics().getStatisticsAccuracyDescription());
}
/** CacheStatistics should always be sensible when the cache has not started. */
@Test
public void testCacheAlive() {
Cache cache = new Cache("test", 1, true, false, 5, 2);
String string = cache.toString();
assertTrue(string.contains("test"));
try {
LiveCacheStatistics statistics = cache.getLiveCacheStatistics();
fail();
} catch (IllegalStateException e) {
assertEquals("The test Cache is not alive (STATUS_UNINITIALISED)", e.getMessage());
}
// initialize cache now
manager.addCache(cache);
// add as a listener
AnotherStatistics anotherStats = new AnotherStatistics();
cache.registerCacheUsageListener(anotherStats);
assertEquals(0, anotherStats.getCacheHitCount());
}
public LiveCacheStatistics getLiveCacheStatistics() {
return cache.getLiveCacheStatistics();
}
