Examples with FakeTicker com.google.common.testing.FakeTicker used on opensource projects

Example 6 with FakeTicker

use of com.google.common.testing.FakeTicker in project caffeine by ben-manes.

the class CacheExpirationTest method testRemovalScheduler_expireAfterBoth.

public void testRemovalScheduler_expireAfterBoth() {
    FakeTicker ticker = new FakeTicker();
    CountingRemovalListener<String, Integer> removalListener = countingRemovalListener();
    WatchedCreatorLoader loader = new WatchedCreatorLoader();
    LoadingCache<String, Integer> cache = CaffeinatedGuava.build(Caffeine.newBuilder().expireAfterAccess(EXPIRING_TIME, MILLISECONDS).expireAfterWrite(EXPIRING_TIME, MILLISECONDS).executor(MoreExecutors.directExecutor()).removalListener(removalListener).ticker(ticker::read), loader);
    runRemovalScheduler(cache, removalListener, loader, ticker, KEY_PREFIX, EXPIRING_TIME);
}

Example 7 with FakeTicker

use of com.google.common.testing.FakeTicker in project caffeine by ben-manes.

the class CacheExpirationTest method testExpirationOrder_write.

public void testExpirationOrder_write() throws ExecutionException {
    // test lru within a single segment
    FakeTicker ticker = new FakeTicker();
    IdentityLoader<Integer> loader = identityLoader();
    LoadingCache<Integer, Integer> cache = CaffeinatedGuava.build(Caffeine.newBuilder().expireAfterWrite(11, MILLISECONDS).ticker(ticker::read), loader);
    for (int i = 0; i < 10; i++) {
        cache.getUnchecked(i);
        ticker.advance(1, MILLISECONDS);
    }
    Set<Integer> keySet = cache.asMap().keySet();
    assertThat(keySet).containsExactly(0, 1, 2, 3, 4, 5, 6, 7, 8, 9);
    // 0 expires
    ticker.advance(1, MILLISECONDS);
    assertThat(keySet).containsExactly(1, 2, 3, 4, 5, 6, 7, 8, 9);
    // get doesn't stop 1 from expiring
    getAll(cache, asList(0, 1, 2));
    CacheTesting.drainRecencyQueues(cache);
    ticker.advance(1, MILLISECONDS);
    assertThat(keySet).containsExactly(2, 3, 4, 5, 6, 7, 8, 9, 0);
    // get(K, Callable) doesn't stop 2 from expiring
    cache.get(2, Callables.returning(-2));
    CacheTesting.drainRecencyQueues(cache);
    ticker.advance(1, MILLISECONDS);
    assertThat(keySet).containsExactly(3, 4, 5, 6, 7, 8, 9, 0);
    // asMap.put saves 3
    cache.asMap().put(3, -3);
    ticker.advance(1, MILLISECONDS);
    assertThat(keySet).containsExactly(4, 5, 6, 7, 8, 9, 0, 3);
    // asMap.replace saves 4
    cache.asMap().replace(4, -4);
    ticker.advance(1, MILLISECONDS);
    assertThat(keySet).containsExactly(5, 6, 7, 8, 9, 0, 3, 4);
    // 5 expires
    ticker.advance(1, MILLISECONDS);
    assertThat(keySet).containsExactly(6, 7, 8, 9, 0, 3, 4);
}

Example 8 with FakeTicker

use of com.google.common.testing.FakeTicker in project caffeine by ben-manes.

the class CacheLoadingTest method testRefreshError.

public void testRefreshError() {
    final Object one = new Object();
    final Error e = new Error();
    FakeTicker ticker = new FakeTicker();
    CacheLoader<Object, Object> loader = new CacheLoader<Object, Object>() {

        @Override
        public Object load(Object key) {
            return one;
        }

        @Override
        public ListenableFuture<Object> reload(Object key, Object oldValue) {
            return Futures.immediateFailedFuture(e);
        }
    };
    LoadingCache<Object, Object> cache = CaffeinatedGuava.build(Caffeine.newBuilder().recordStats().ticker(ticker::read).refreshAfterWrite(1, MILLISECONDS).executor(MoreExecutors.directExecutor()), loader);
    Object key = new Object();
    CacheStats stats = cache.stats();
    assertEquals(0, stats.missCount());
    assertEquals(0, stats.loadSuccessCount());
    assertEquals(0, stats.loadExceptionCount());
    assertEquals(0, stats.hitCount());
    assertSame(one, cache.getUnchecked(key));
    stats = cache.stats();
    assertEquals(1, stats.missCount());
    assertEquals(1, stats.loadSuccessCount());
    assertEquals(0, stats.loadExceptionCount());
    assertEquals(0, stats.hitCount());
    ticker.advance(1, MILLISECONDS);
    assertSame(one, cache.getUnchecked(key));
    stats = cache.stats();
    assertEquals(1, stats.missCount());
    assertEquals(1, stats.loadSuccessCount());
    assertEquals(0, stats.loadExceptionCount());
    assertEquals(1, stats.hitCount());
    ticker.advance(1, MILLISECONDS);
    assertSame(one, cache.getUnchecked(key));
    // refreshed
    stats = cache.stats();
    assertEquals(1, stats.missCount());
    assertEquals(1, stats.loadSuccessCount());
    assertEquals(1, stats.loadExceptionCount());
    assertEquals(2, stats.hitCount());
    ticker.advance(2, MILLISECONDS);
    assertSame(one, cache.getUnchecked(key));
    stats = cache.stats();
    assertEquals(1, stats.missCount());
    assertEquals(1, stats.loadSuccessCount());
    assertEquals(2, stats.loadExceptionCount());
    assertEquals(3, stats.hitCount());
}

Example 9 with FakeTicker

use of com.google.common.testing.FakeTicker in project caffeine by ben-manes.

the class CacheLoadingTest method testRefresh_getIfPresent.

public void testRefresh_getIfPresent() {
    final Object one = new Object();
    final Object two = new Object();
    FakeTicker ticker = new FakeTicker();
    CacheLoader<Object, Object> loader = new CacheLoader<Object, Object>() {

        @Override
        public Object load(Object key) {
            return one;
        }

        @Override
        public ListenableFuture<Object> reload(Object key, Object oldValue) {
            return Futures.immediateFuture(two);
        }
    };
    LoadingCache<Object, Object> cache = CaffeinatedGuava.build(Caffeine.newBuilder().recordStats().ticker(ticker::read).refreshAfterWrite(1, MILLISECONDS).executor(MoreExecutors.directExecutor()), loader);
    Object key = new Object();
    CacheStats stats = cache.stats();
    assertEquals(0, stats.missCount());
    assertEquals(0, stats.loadSuccessCount());
    assertEquals(0, stats.loadExceptionCount());
    assertEquals(0, stats.hitCount());
    assertSame(one, cache.getUnchecked(key));
    stats = cache.stats();
    assertEquals(1, stats.missCount());
    assertEquals(1, stats.loadSuccessCount());
    assertEquals(0, stats.loadExceptionCount());
    assertEquals(0, stats.hitCount());
    ticker.advance(1, MILLISECONDS);
    assertSame(one, cache.getIfPresent(key));
    stats = cache.stats();
    assertEquals(1, stats.missCount());
    assertEquals(1, stats.loadSuccessCount());
    assertEquals(0, stats.loadExceptionCount());
    assertEquals(1, stats.hitCount());
    ticker.advance(1, MILLISECONDS);
    assertSame(two, cache.getIfPresent(key));
    stats = cache.stats();
    assertEquals(1, stats.missCount());
    assertEquals(2, stats.loadSuccessCount());
    assertEquals(0, stats.loadExceptionCount());
    assertEquals(2, stats.hitCount());
    ticker.advance(1, MILLISECONDS);
    assertSame(two, cache.getIfPresent(key));
    stats = cache.stats();
    assertEquals(1, stats.missCount());
    assertEquals(2, stats.loadSuccessCount());
    assertEquals(0, stats.loadExceptionCount());
    assertEquals(3, stats.hitCount());
}

Example 10 with FakeTicker

use of com.google.common.testing.FakeTicker in project caffeine by ben-manes.

the class CacheRefreshTest method testAutoRefresh.

public void testAutoRefresh() {
    FakeTicker ticker = new FakeTicker();
    IncrementingLoader loader = incrementingLoader();
    LoadingCache<Integer, Integer> cache = CaffeinatedGuava.build(Caffeine.newBuilder().refreshAfterWrite(3, MILLISECONDS).expireAfterWrite(6, MILLISECONDS).executor(MoreExecutors.directExecutor()).ticker(ticker::read), loader);
    int expectedLoads = 0;
    int expectedReloads = 0;
    for (int i = 0; i < 3; i++) {
        assertEquals(Integer.valueOf(i), cache.getUnchecked(i));
        expectedLoads++;
        assertEquals(expectedLoads, loader.getLoadCount());
        assertEquals(expectedReloads, loader.getReloadCount());
        ticker.advance(1, MILLISECONDS);
    }
    assertEquals(Integer.valueOf(0), cache.getUnchecked(0));
    assertEquals(Integer.valueOf(1), cache.getUnchecked(1));
    assertEquals(Integer.valueOf(2), cache.getUnchecked(2));
    assertEquals(expectedLoads, loader.getLoadCount());
    assertEquals(expectedReloads, loader.getReloadCount());
    // refresh 0
    ticker.advance(1, MILLISECONDS);
    // Allow refresh to return old value while refreshing
    cache.getUnchecked(0);
    assertEquals(Integer.valueOf(1), cache.getUnchecked(0));
    expectedReloads++;
    assertEquals(Integer.valueOf(1), cache.getUnchecked(1));
    assertEquals(Integer.valueOf(2), cache.getUnchecked(2));
    assertEquals(expectedLoads, loader.getLoadCount());
    assertEquals(expectedReloads, loader.getReloadCount());
    // write to 1 to delay its refresh
    cache.asMap().put(1, -1);
    ticker.advance(1, MILLISECONDS);
    assertEquals(Integer.valueOf(1), cache.getUnchecked(0));
    assertEquals(Integer.valueOf(-1), cache.getUnchecked(1));
    assertEquals(Integer.valueOf(2), cache.getUnchecked(2));
    assertEquals(expectedLoads, loader.getLoadCount());
    assertEquals(expectedReloads, loader.getReloadCount());
    // refresh 2
    ticker.advance(1, MILLISECONDS);
    // Allow refresh to return old value while refreshing
    cache.getUnchecked(2);
    assertEquals(Integer.valueOf(1), cache.getUnchecked(0));
    assertEquals(Integer.valueOf(-1), cache.getUnchecked(1));
    assertEquals(Integer.valueOf(3), cache.getUnchecked(2));
    expectedReloads++;
    assertEquals(expectedLoads, loader.getLoadCount());
    assertEquals(expectedReloads, loader.getReloadCount());
    ticker.advance(1, MILLISECONDS);
    assertEquals(Integer.valueOf(1), cache.getUnchecked(0));
    assertEquals(Integer.valueOf(-1), cache.getUnchecked(1));
    assertEquals(Integer.valueOf(3), cache.getUnchecked(2));
    assertEquals(expectedLoads, loader.getLoadCount());
    assertEquals(expectedReloads, loader.getReloadCount());
    // refresh 0 and 1
    ticker.advance(1, MILLISECONDS);
    // Allow refresh to return old value while refreshing
    cache.getUnchecked(0);
    // Allow refresh to return old value while refreshing
    cache.getUnchecked(1);
    assertEquals(Integer.valueOf(2), cache.getUnchecked(0));
    expectedReloads++;
    assertEquals(Integer.valueOf(0), cache.getUnchecked(1));
    expectedReloads++;
    assertEquals(Integer.valueOf(3), cache.getUnchecked(2));
    assertEquals(expectedLoads, loader.getLoadCount());
    assertEquals(expectedReloads, loader.getReloadCount());
}