String key = "key";
    assertEquals(0L, map.get(key));
    assertFalse(map.containsKey(key));

    assertEquals(1L, map.incrementAndGet(key));
    assertEquals(1L, map.get(key));

    assertEquals(0L, map.decrementAndGet(key));
    assertEquals(0L, map.get(key));
    assertTrue(map.containsKey(key));

    assertEquals(1L, map.incrementAndGet(key));
    assertEquals(1L, map.get(key));
  }

        assertEquals("test-prop", pom.getValue("properties[1]/b")); // verifies profile applied
        assertEquals(4, ((List<?>) pom.getValue("modules")).size());
        assertEquals("module-2", pom.getValue("modules[1]"));
        assertEquals("module-1", pom.getValue("modules[2]"));
        assertEquals("module-3", pom.getValue("modules[3]"));
        assertEquals("module-4", pom.getValue("modules[4]"));
    }

    checkContains(range);
    assertTrue(range.hasLowerBound());
    assertEquals(4, (int) range.lowerEndpoint());
    assertEquals(OPEN, range.lowerBoundType());
    assertTrue(range.hasUpperBound());
    assertEquals(8, (int) range.upperEndpoint());
    assertEquals(OPEN, range.upperBoundType());
    assertFalse(range.isEmpty());
    assertEquals("(4..8)", range.toString());
    reserializeAndAssert(range);
  }

    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("1.0", range.getSelectedVersion(artifact).toString(), CHECK_SELECTED_VERSION);

        range = VersionRange.createFromVersionSpec("[1.0]");
        restrictions = range.getRestrictions();
        assertEquals(1, restrictions.size(), CHECK_NUM_RESTRICTIONS);
        restriction = restrictions.get(0);
        assertEquals("1.0", restriction.getLowerBound().toString(), CHECK_LOWER_BOUND);

    assertEquals(10, spec.initialCapacity.intValue());
    assertEquals(20, spec.maximumSize.intValue());
    assertNull(spec.maximumWeight);
    assertEquals(30, spec.concurrencyLevel.intValue());
    assertEquals(Strength.WEAK, spec.keyStrength);
    assertEquals(Strength.WEAK, spec.valueStrength);
    assertEquals(TimeUnit.HOURS, spec.writeExpirationTimeUnit);

    assertEquals(1, Iterators.size(registry.getSubscribers(1)));

    registry.register(new IntegerSubscriber());
    assertEquals(3, Iterators.size(registry.getSubscribers("")));
    assertEquals(1, Iterators.size(registry.getSubscribers(new Object())));
    assertEquals(2, Iterators.size(registry.getSubscribers(1)));
  }

  public void testGetSubscribers_returnsImmutableSnapshot() {

    resetWithHole();
    assertEquals(null, navigableSet.lower(a));
    assertEquals(a, navigableSet.lower(b));
    assertEquals(a, navigableSet.lower(c));
  }

  @CollectionSize.Require(SEVERAL)
  public void testFloorHole() {
    resetWithHole();
    assertEquals(a, navigableSet.floor(a));
    assertEquals(a, navigableSet.floor(b));
    assertEquals(c, navigableSet.floor(c));
  }

    // also test available
    lin.mark(2);
    assertEquals(2, lin.available());
    int read = lin.read();
    assertEquals(big[0], read);
    assertEquals(1, lin.available());
    read = lin.read();
    assertEquals(big[1], read);
    assertEquals(0, lin.available());
    read = lin.read();
    assertEquals(-1, read);

    lin.reset();
    byte[] small = new byte[5];

    int requestCount = 11 + 23;
    assertEquals(requestCount, stats.requestCount());
    assertEquals(11, stats.hitCount());
    assertEquals(11.0 / requestCount, stats.hitRate());
    int missCount = 23;
    assertEquals(missCount, stats.missCount());
    assertEquals(((double) missCount) / requestCount, stats.missRate());
    assertEquals(13, stats.loadSuccessCount());
    assertEquals(17, stats.loadExceptionCount());