for (int x : POSITIVE_INTEGER_CANDIDATES) {
      BigInteger expectedResult = BigIntegerMath.ceilingPowerOfTwo(BigInteger.valueOf(x));
      if (fitsInInt(expectedResult)) {
        assertEquals(expectedResult.intValue(), IntMath.ceilingPowerOfTwo(x));
      } else {
        assertThrows(ArithmeticException.class, () -> IntMath.ceilingPowerOfTwo(x));
      }
    }
  }

  public void testFloorPowerOfTwo() {

                + "weakKeys,weakValues,expireAfterAccess=10m,expireAfterWrite=1h");
    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(1, ContiguousSet.create(Range.open(0, 4), integers()).first().intValue());
    assertEquals(
        Integer.MIN_VALUE,
        ContiguousSet.create(Range.<Integer>all(), integers()).first().intValue());
  }

  public void testLast() {
    assertEquals(3, ContiguousSet.create(Range.closed(1, 3), integers()).last().intValue());

    for (int x : POSITIVE_INTEGER_CANDIDATES) {
      BigInteger expectedResult = BigIntegerMath.ceilingPowerOfTwo(BigInteger.valueOf(x));
      if (fitsInInt(expectedResult)) {
        assertEquals(expectedResult.intValue(), IntMath.ceilingPowerOfTwo(x));
      } else {
        assertThrows(ArithmeticException.class, () -> IntMath.ceilingPowerOfTwo(x));
      }
    }
  }

  public void testFloorPowerOfTwo() {

                + "weakKeys,weakValues,expireAfterAccess=10m,expireAfterWrite=1h");
    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);

  }

  public void testIntValue() {
    for (long a : TEST_LONGS) {
      UnsignedLong aUnsigned = UnsignedLong.fromLongBits(a);
      int intValue = aUnsigned.bigIntegerValue().intValue();
      assertThat(aUnsigned.intValue()).isEqualTo(intValue);
    }
  }

  @J2ktIncompatible
  @GwtIncompatible // serialization
  public void testSerialization() {
    for (long a : TEST_LONGS) {

    assertEquals(1, ContiguousSet.create(Range.open(0, 4), integers()).first().intValue());
    assertEquals(
        Integer.MIN_VALUE,
        ContiguousSet.create(Range.<Integer>all(), integers()).first().intValue());
  }

  public void testLast() {
    assertEquals(3, ContiguousSet.create(Range.closed(1, 3), integers()).last().intValue());

      at.set(x);
      assertEquals(Double.toString(x), at.toString());
    }
  }

  /** intValue returns current value. */
  public void testIntValue() {
    AtomicDouble at = new AtomicDouble();
    assertEquals(0, at.intValue());
    for (double x : VALUES) {
      at.set(x);
      assertEquals((int) x, at.intValue());
    }
  }

  /** longValue returns current value. */
  public void testLongValue() {

  }

  public void testIntValue() {
    for (long a : TEST_LONGS) {
      UnsignedLong aUnsigned = UnsignedLong.fromLongBits(a);
      int intValue = aUnsigned.bigIntegerValue().intValue();
      assertThat(aUnsigned.intValue()).isEqualTo(intValue);
    }
  }

  @J2ktIncompatible
  @GwtIncompatible // serialization
  public void testSerialization() {
    for (long a : TEST_LONGS) {

      Future<Integer> future = futures.get(i);
      assertTrue("Task should have been run before being returned", future.isDone());
      assertEquals(i, future.get().intValue());
    }

    assertEquals(10, threadLocalCount.get().intValue());
  }

  public void testDirectExecutorServiceServiceTermination() throws Exception {
    final ExecutorService executor = newDirectExecutorService();