{[]byte("abcdefghj"), []byte("abcdefghi"), 1},
	// nil tests
	{nil, nil, 0},
	{[]byte(""), nil, 0},
	{nil, []byte(""), 0},
	{[]byte("a"), nil, 1},
	{nil, []byte("a"), -1},
}

func TestCompare(t *testing.T) {
	for _, tt := range compareTests {
		numShifts := 16
		buffer := make([]byte, len(tt.b)+numShifts)
		// vary the input alignment of tt.b
		for offset := 0; offset <= numShifts; offset++ {

      assertWithMessage(value + " not found in exception text: " + ex.getMessage())
          .that(ex.getMessage().contains(String.valueOf(value)))
          .isTrue();
    }
  }

  public void testCompare() {
    // This is the only ordering for primitives that does not have a
    // corresponding Comparable wrapper in java.lang.
    for (int i = 0; i < VALUES.length; i++) {
      for (int j = 0; j < VALUES.length; j++) {

      assertWithMessage(value + " not found in exception text: " + ex.getMessage())
          .that(ex.getMessage().contains(String.valueOf(value)))
          .isTrue();
    }
  }

  public void testCompare() {
    for (byte x : VALUES) {
      for (byte y : VALUES) {
        // Only compare the sign of the result of compareTo().
        int expected = Byte.valueOf(x).compareTo(y);

      try {
        UnsignedInteger.fromIntBits(a).mod(UnsignedInteger.ZERO);
        fail("Expected ArithmeticException");
      } catch (ArithmeticException expected) {
      }
    }
  }

  public void testCompare() {
    for (int a : TEST_INTS) {
      for (int b : TEST_INTS) {
        UnsignedInteger aUnsigned = UnsignedInteger.fromIntBits(a);
        UnsignedInteger bUnsigned = UnsignedInteger.fromIntBits(b);

      try {
        UnsignedLong.fromLongBits(a).mod(UnsignedLong.ZERO);
        fail("Expected ArithmeticException");
      } catch (ArithmeticException expected) {
      }
    }
  }

  public void testCompare() {
    for (long a : TEST_LONGS) {
      for (long b : TEST_LONGS) {
        UnsignedLong aUnsigned = UnsignedLong.fromLongBits(a);
        UnsignedLong bUnsigned = UnsignedLong.fromLongBits(b);

      assertWithMessage(value + " not found in exception text: " + ex.getMessage())
          .that(ex.getMessage().contains(String.valueOf(value)))
          .isTrue();
    }
  }

  public void testCompare() {
    for (byte x : VALUES) {
      for (byte y : VALUES) {
        // Only compare the sign of the result of compareTo().
        int expected = Byte.valueOf(x).compareTo(y);

      try {
        UnsignedLong.fromLongBits(a).mod(UnsignedLong.ZERO);
        fail("Expected ArithmeticException");
      } catch (ArithmeticException expected) {
      }
    }
  }

  public void testCompare() {
    for (long a : TEST_LONGS) {
      for (long b : TEST_LONGS) {
        UnsignedLong aUnsigned = UnsignedLong.fromLongBits(a);
        UnsignedLong bUnsigned = UnsignedLong.fromLongBits(b);

      try {
        UnsignedInteger.fromIntBits(a).mod(UnsignedInteger.ZERO);
        fail("Expected ArithmeticException");
      } catch (ArithmeticException expected) {
      }
    }
  }

  public void testCompare() {
    for (int a : TEST_INTS) {
      for (int b : TEST_INTS) {
        UnsignedInteger aUnsigned = UnsignedInteger.fromIntBits(a);
        UnsignedInteger bUnsigned = UnsignedInteger.fromIntBits(b);

 */
@GwtCompatible(emulated = true)
public class UnsignedLongsTest extends TestCase {
  private static final long LEAST = 0L;
  private static final long GREATEST = 0xffffffffffffffffL;

  public void testCompare() {
    // max value
    assertThat(UnsignedLongs.compare(0, 0xffffffffffffffffL)).isLessThan(0);
    assertThat(UnsignedLongs.compare(0xffffffffffffffffL, 0)).isGreaterThan(0);

    // both with high bit set

  }

  public void testToLong() {
    for (long a : UNSIGNED_INTS) {
      assertThat(UnsignedInts.toLong((int) a)).isEqualTo(a);
    }
  }

  public void testCompare() {
    for (long a : UNSIGNED_INTS) {
      for (long b : UNSIGNED_INTS) {
        int cmpAsLongs = Longs.compare(a, b);
        int cmpAsUInt = UnsignedInts.compare((int) a, (int) b);