Integer.MIN_VALUE,
        Integer.MAX_VALUE,
        Long.MIN_VALUE,
        Long.MAX_VALUE
      };

  private static final double[] VALUES = Doubles.concat(NUMBERS, new double[] {NaN});

  public void testHashCode() {
    for (double value : VALUES) {
      assertThat(Doubles.hashCode(value)).isEqualTo(((Double) value).hashCode());
    }
  }

  public void testIsFinite() {
    for (double value : NUMBERS) {

      }
    } else {
      try {
        map.get(null);
      } catch (NullPointerException optional) {
      }
    }
    assertInvariants(map);
  }

  public void testHashCode() {
    Map<K, V> map;
    try {
      map = makePopulatedMap();
    } catch (UnsupportedOperationException e) {
      return;
    }
    assertInvariants(map);
  }

  private static final boolean[] ARRAY_FALSE_FALSE = {false, false};
  private static final boolean[] ARRAY_FALSE_TRUE = {false, true};

  private static final boolean[] VALUES = {false, true};

  public void testHashCode() {
    assertThat(Booleans.hashCode(true)).isEqualTo(Boolean.TRUE.hashCode());
    assertThat(Booleans.hashCode(false)).isEqualTo(Boolean.FALSE.hashCode());
  }

  public void testTrueFirst() {

        Integer.MIN_VALUE,
        Integer.MAX_VALUE,
        Long.MIN_VALUE,
        Long.MAX_VALUE
      };

  private static final float[] VALUES = Floats.concat(NUMBERS, new float[] {NaN});

  public void testHashCode() {
    for (float value : VALUES) {
      assertThat(Floats.hashCode(value)).isEqualTo(((Float) value).hashCode());
    }
  }

  public void testIsFinite() {
    for (float value : NUMBERS) {

  private static final int LEAST = Integer.MIN_VALUE;
  private static final int GREATEST = Integer.MAX_VALUE;

  private static final int[] VALUES = {LEAST, (int) -1, (int) 0, (int) 1, GREATEST};

  public void testHashCode() {
    for (int value : VALUES) {
      assertThat(Ints.hashCode(value)).isEqualTo(((Integer) value).hashCode());
    }
  }

  public void testCheckedCast() {
    for (int value : VALUES) {

        Integer.MIN_VALUE,
        Integer.MAX_VALUE,
        Long.MIN_VALUE,
        Long.MAX_VALUE
      };

  private static final double[] VALUES = Doubles.concat(NUMBERS, new double[] {NaN});

  public void testHashCode() {
    for (double value : VALUES) {
      assertThat(Doubles.hashCode(value)).isEqualTo(((Double) value).hashCode());
    }
  }

  public void testIsFinite() {
    for (double value : NUMBERS) {

        Integer.MIN_VALUE,
        Integer.MAX_VALUE,
        Long.MIN_VALUE,
        Long.MAX_VALUE
      };

  private static final float[] VALUES = Floats.concat(NUMBERS, new float[] {NaN});

  public void testHashCode() {
    for (float value : VALUES) {
      assertThat(Floats.hashCode(value)).isEqualTo(((Float) value).hashCode());
    }
  }

  public void testIsFinite() {
    for (float value : NUMBERS) {

  private static final long[] VALUES = {MIN_VALUE, (long) -1, (long) 0, (long) 1, MAX_VALUE};

  @GwtIncompatible // Long.hashCode returns different values in GWT.
  public void testHashCode() {
    for (long value : VALUES) {
      assertWithMessage("hashCode for " + value)
          .that(Longs.hashCode(value))
          .isEqualTo(((Long) value).hashCode());
    }
  }

      }
    } else {
      try {
        map.get(null);
      } catch (NullPointerException optional) {
      }
    }
    assertInvariants(map);
  }

  public void testHashCode() {
    Map<K, V> map;
    try {
      map = makePopulatedMap();
    } catch (UnsupportedOperationException e) {
      return;
    }
    assertInvariants(map);
  }