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

Example 16 with FakeTicker

use of com.google.common.testing.FakeTicker in project guava by google.

the class CacheRefreshTest method testAutoRefresh.

public void testAutoRefresh() {
    FakeTicker ticker = new FakeTicker();
    IncrementingLoader loader = incrementingLoader();
    LoadingCache<Integer, Integer> cache = CacheBuilder.newBuilder().refreshAfterWrite(3, MILLISECONDS).expireAfterWrite(6, MILLISECONDS).lenientParsing().ticker(ticker).build(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);
    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);
    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);
    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());
}

Example 17 with FakeTicker

use of com.google.common.testing.FakeTicker in project guava by google.

the class CacheBuilderGwtTest method setUp.

@Override
protected void setUp() throws Exception {
    super.setUp();
    fakeTicker = new FakeTicker();
}

Example 18 with FakeTicker

use of com.google.common.testing.FakeTicker in project guava by google.

the class CacheExpirationTest method testExpirationOrder_writeAccess.

public void testExpirationOrder_writeAccess() throws ExecutionException {
    // test lru within a single segment
    FakeTicker ticker = new FakeTicker();
    IdentityLoader<Integer> loader = identityLoader();
    LoadingCache<Integer, Integer> cache = CacheBuilder.newBuilder().concurrencyLevel(1).expireAfterWrite(5, MILLISECONDS).expireAfterAccess(3, MILLISECONDS).ticker(ticker).build(loader);
    for (int i = 0; i < 5; i++) {
        cache.getUnchecked(i);
    }
    ticker.advance(1, MILLISECONDS);
    for (int i = 5; 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);
    // get saves 1, 3; 0, 2, 4 expire
    getAll(cache, asList(1, 3));
    CacheTesting.drainRecencyQueues(cache);
    ticker.advance(1, MILLISECONDS);
    assertThat(keySet).containsExactly(5, 6, 7, 8, 9, 1, 3);
    // get saves 6, 8; 5, 7, 9 expire
    getAll(cache, asList(6, 8));
    CacheTesting.drainRecencyQueues(cache);
    ticker.advance(1, MILLISECONDS);
    assertThat(keySet).containsExactly(1, 3, 6, 8);
    // get fails to save 1, put saves 3
    cache.asMap().put(3, -3);
    getAll(cache, asList(1));
    CacheTesting.drainRecencyQueues(cache);
    ticker.advance(1, MILLISECONDS);
    assertThat(keySet).containsExactly(6, 8, 3);
    // get(K, Callable) fails to save 8, replace saves 6
    cache.asMap().replace(6, -6);
    cache.get(8, Callables.returning(-8));
    CacheTesting.drainRecencyQueues(cache);
    ticker.advance(1, MILLISECONDS);
    assertThat(keySet).containsExactly(3, 6);
}

Example 19 with FakeTicker

use of com.google.common.testing.FakeTicker in project guava by google.

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 = CacheBuilder.newBuilder().expireAfterAccess(EXPIRING_TIME, MILLISECONDS).expireAfterWrite(EXPIRING_TIME, MILLISECONDS).removalListener(removalListener).ticker(ticker).build(loader);
    runRemovalScheduler(cache, removalListener, loader, ticker, KEY_PREFIX, EXPIRING_TIME);
}

Example 20 with FakeTicker

use of com.google.common.testing.FakeTicker in project guava by google.

the class CacheExpirationTest method testRemovalScheduler_expireAfterAccess.

public void testRemovalScheduler_expireAfterAccess() {
    FakeTicker ticker = new FakeTicker();
    CountingRemovalListener<String, Integer> removalListener = countingRemovalListener();
    WatchedCreatorLoader loader = new WatchedCreatorLoader();
    LoadingCache<String, Integer> cache = CacheBuilder.newBuilder().expireAfterAccess(EXPIRING_TIME, MILLISECONDS).removalListener(removalListener).ticker(ticker).build(loader);
    runRemovalScheduler(cache, removalListener, loader, ticker, KEY_PREFIX, EXPIRING_TIME);
}