Examples of FakeTicker

Examples of com.google.common.testing.FakeTicker

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  }

  public void testRefresh() {
    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 = CacheBuilder.newBuilder()
        .recordStats()
        .ticker(ticker)
        .refreshAfterWrite(1, MILLISECONDS)
        .build(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(two, cache.getUnchecked(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.getUnchecked(key));
    stats = cache.stats();
    assertEquals(1, stats.missCount());
    assertEquals(2, stats.loadSuccessCount());
    assertEquals(0, stats.loadExceptionCount());
View Full Code Here

Examples of com.google.common.testing.FakeTicker

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  }

  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 = CacheBuilder.newBuilder()
        .recordStats()
        .ticker(ticker)
        .refreshAfterWrite(1, MILLISECONDS)
        .build(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());
View Full Code Here

Examples of com.google.common.testing.FakeTicker

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    assertEquals(1, stats.hitCount());
  }

  public void testRefreshNull() {
    final Object one = 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(null);
      }
    };

    LoadingCache<Object, Object> cache = CacheBuilder.newBuilder()
        .recordStats()
        .ticker(ticker)
        .refreshAfterWrite(1, MILLISECONDS)
        .build(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(1, MILLISECONDS);
    assertSame(one, cache.getUnchecked(key));
    stats = cache.stats();
    assertEquals(1, stats.missCount());
    assertEquals(1, stats.loadSuccessCount());
    assertEquals(2, stats.loadExceptionCount());
View Full Code Here

Examples of com.google.common.testing.FakeTicker

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  }

  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 = CacheBuilder.newBuilder()
        .recordStats()
        .ticker(ticker)
        .refreshAfterWrite(1, MILLISECONDS)
        .build(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(1, MILLISECONDS);
    assertSame(one, cache.getUnchecked(key));
    stats = cache.stats();
    assertEquals(1, stats.missCount());
    assertEquals(1, stats.loadSuccessCount());
    assertEquals(2, stats.loadExceptionCount());
View Full Code Here

Examples of com.google.common.testing.FakeTicker

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  }

  public void testRefreshCheckedException() {
    final Object one = new Object();
    final Exception e = new Exception();
    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 = CacheBuilder.newBuilder()
        .recordStats()
        .ticker(ticker)
        .refreshAfterWrite(1, MILLISECONDS)
        .build(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(1, MILLISECONDS);
    assertSame(one, cache.getUnchecked(key));
    stats = cache.stats();
    assertEquals(1, stats.missCount());
    assertEquals(1, stats.loadSuccessCount());
    assertEquals(2, stats.loadExceptionCount());
View Full Code Here

Examples of com.google.common.testing.FakeTicker

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  }

  public void testRefreshUncheckedException() {
    final Object one = new Object();
    final Exception e = new RuntimeException();
    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 = CacheBuilder.newBuilder()
        .recordStats()
        .ticker(ticker)
        .refreshAfterWrite(1, MILLISECONDS)
        .build(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(1, MILLISECONDS);
    assertSame(one, cache.getUnchecked(key));
    stats = cache.stats();
    assertEquals(1, stats.missCount());
    assertEquals(1, stats.loadSuccessCount());
    assertEquals(2, stats.loadExceptionCount());
View Full Code Here

Examples of com.google.common.testing.FakeTicker

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    assertTrue(listener.isEmpty());
  }

  public void testRemovalListener_expired() {
    FakeTicker ticker = new FakeTicker();
    QueuingRemovalListener<Object, Object> listener = queuingRemovalListener();
    LocalCache<Object, Object> map = makeLocalCache(createCacheBuilder()
        .concurrencyLevel(1)
        .expireAfterWrite(3, TimeUnit.NANOSECONDS)
        .ticker(ticker)
        .removalListener(listener));
    assertTrue(listener.isEmpty());

    Object one = new Object();
    Object two = new Object();
    Object three = new Object();
    Object four = new Object();
    Object five = new Object();

    map.put(one, two);
    ticker.advance(1);
    map.put(two, three);
    ticker.advance(1);
    map.put(three, four);
    assertTrue(listener.isEmpty());
    ticker.advance(1);
    map.put(four, five);
    assertNotified(listener, one, two, RemovalCause.EXPIRED);

    assertTrue(listener.isEmpty());
  }
View Full Code Here

Examples of com.google.common.testing.FakeTicker

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      assertSame(two, one.getNextInAccessQueue());
    }
  }

  public void testSegmentGetAndContains() {
    FakeTicker ticker = new FakeTicker();
    LocalCache<Object, Object> map = makeLocalCache(createCacheBuilder()
        .concurrencyLevel(1)
        .ticker(ticker)
        .expireAfterAccess(1, TimeUnit.NANOSECONDS));
    Segment<Object, Object> segment = map.segments[0];
    // TODO(fry): check recency ordering

    Object key = new Object();
    int hash = map.hash(key);
    Object value = new Object();
    AtomicReferenceArray<ReferenceEntry<Object, Object>> table = segment.table;
    int index = hash & (table.length() - 1);

    ReferenceEntry<Object, Object> entry = map.newEntry(key, hash, null);
    ValueReference<Object, Object> valueRef = map.newValueReference(entry, value, 1);
    entry.setValueReference(valueRef);

    assertNull(segment.get(key, hash));

    // count == 0
    table.set(index, entry);
    assertNull(segment.get(key, hash));
    assertFalse(segment.containsKey(key, hash));
    assertFalse(segment.containsValue(value));

    // count == 1
    segment.count++;
    assertSame(value, segment.get(key, hash));
    assertTrue(segment.containsKey(key, hash));
    assertTrue(segment.containsValue(value));
    // don't see absent values now that count > 0
    assertNull(segment.get(new Object(), hash));

    // null key
    DummyEntry<Object, Object> nullEntry = DummyEntry.create(null, hash, entry);
    Object nullValue = new Object();
    ValueReference<Object, Object> nullValueRef = map.newValueReference(nullEntry, nullValue, 1);
    nullEntry.setValueReference(nullValueRef);
    table.set(index, nullEntry);
    // skip the null key
    assertSame(value, segment.get(key, hash));
    assertTrue(segment.containsKey(key, hash));
    assertTrue(segment.containsValue(value));
    assertFalse(segment.containsValue(nullValue));

    // hash collision
    DummyEntry<Object, Object> dummy = DummyEntry.create(new Object(), hash, entry);
    Object dummyValue = new Object();
    ValueReference<Object, Object> dummyValueRef = map.newValueReference(dummy, dummyValue, 1);
    dummy.setValueReference(dummyValueRef);
    table.set(index, dummy);
    assertSame(value, segment.get(key, hash));
    assertTrue(segment.containsKey(key, hash));
    assertTrue(segment.containsValue(value));
    assertTrue(segment.containsValue(dummyValue));

    // key collision
    dummy = DummyEntry.create(key, hash, entry);
    dummyValue = new Object();
    dummyValueRef = map.newValueReference(dummy, dummyValue, 1);
    dummy.setValueReference(dummyValueRef);
    table.set(index, dummy);
    // returns the most recent entry
    assertSame(dummyValue, segment.get(key, hash));
    assertTrue(segment.containsKey(key, hash));
    assertTrue(segment.containsValue(value));
    assertTrue(segment.containsValue(dummyValue));

    // expired
    dummy.setAccessTime(ticker.read() - 2);
    assertNull(segment.get(key, hash));
    assertFalse(segment.containsKey(key, hash));
    assertTrue(segment.containsValue(value));
    assertFalse(segment.containsValue(dummyValue));
  }
View Full Code Here

Examples of com.google.common.testing.FakeTicker

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      }
    }
  }

  public void testExpireAfterWrite() {
    FakeTicker ticker = new FakeTicker();
    LocalCache<Object, Object> map = makeLocalCache(createCacheBuilder()
        .concurrencyLevel(1)
        .ticker(ticker)
        .expireAfterWrite(2, TimeUnit.NANOSECONDS));
    Segment<Object, Object> segment = map.segments[0];

    Object key = new Object();
    Object value = new Object();
    map.put(key, value);
    ReferenceEntry<Object, Object> entry = map.getEntry(key);
    assertTrue(map.isLive(entry, ticker.read()));

    segment.writeQueue.add(entry);
    assertSame(value, map.get(key));
    assertSame(entry, segment.writeQueue.peek());
    assertEquals(1, segment.writeQueue.size());

    segment.recordRead(entry, ticker.read());
    segment.expireEntries(ticker.read());
    assertSame(value, map.get(key));
    assertSame(entry, segment.writeQueue.peek());
    assertEquals(1, segment.writeQueue.size());

    ticker.advance(1);
    segment.recordRead(entry, ticker.read());
    segment.expireEntries(ticker.read());
    assertSame(value, map.get(key));
    assertSame(entry, segment.writeQueue.peek());
    assertEquals(1, segment.writeQueue.size());

    ticker.advance(1);
    assertNull(map.get(key));
    segment.expireEntries(ticker.read());
    assertNull(map.get(key));
    assertTrue(segment.writeQueue.isEmpty());
  }
View Full Code Here

Examples of com.google.common.testing.FakeTicker

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    assertNull(map.get(key));
    assertTrue(segment.writeQueue.isEmpty());
  }

  public void testExpireAfterAccess() {
    FakeTicker ticker = new FakeTicker();
    LocalCache<Object, Object> map = makeLocalCache(createCacheBuilder()
        .concurrencyLevel(1)
        .ticker(ticker)
        .expireAfterAccess(2, TimeUnit.NANOSECONDS));
    Segment<Object, Object> segment = map.segments[0];

    Object key = new Object();
    Object value = new Object();
    map.put(key, value);
    ReferenceEntry<Object, Object> entry = map.getEntry(key);
    assertTrue(map.isLive(entry, ticker.read()));

    segment.accessQueue.add(entry);
    assertSame(value, map.get(key));
    assertSame(entry, segment.accessQueue.peek());
    assertEquals(1, segment.accessQueue.size());

    segment.recordRead(entry, ticker.read());
    segment.expireEntries(ticker.read());
    assertTrue(map.containsKey(key));
    assertSame(entry, segment.accessQueue.peek());
    assertEquals(1, segment.accessQueue.size());

    ticker.advance(1);
    segment.recordRead(entry, ticker.read());
    segment.expireEntries(ticker.read());
    assertTrue(map.containsKey(key));
    assertSame(entry, segment.accessQueue.peek());
    assertEquals(1, segment.accessQueue.size());

    ticker.advance(1);
    segment.recordRead(entry, ticker.read());
    segment.expireEntries(ticker.read());
    assertTrue(map.containsKey(key));
    assertSame(entry, segment.accessQueue.peek());
    assertEquals(1, segment.accessQueue.size());

    ticker.advance(1);
    segment.expireEntries(ticker.read());
    assertTrue(map.containsKey(key));
    assertSame(entry, segment.accessQueue.peek());
    assertEquals(1, segment.accessQueue.size());

    ticker.advance(1);
    assertFalse(map.containsKey(key));
    assertNull(map.get(key));
    segment.expireEntries(ticker.read());
    assertFalse(map.containsKey(key));
    assertNull(map.get(key));
    assertTrue(segment.accessQueue.isEmpty());
  }
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