private static final int[] EMPTY = {};
  private static final int[] ARRAY1 = {(int) 1};
  private static final int[] ARRAY234 = {(int) 2, (int) 3, (int) 4};

  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};

  // We need to test that our method behaves like the JDK method.

  private static final BigDecimal MIN_INT_AS_BIG_DECIMAL = BigDecimal.valueOf(Integer.MIN_VALUE);

  private static final BigDecimal MAX_LONG_AS_BIG_DECIMAL = BigDecimal.valueOf(Long.MAX_VALUE);
  private static final BigDecimal MIN_LONG_AS_BIG_DECIMAL = BigDecimal.valueOf(Long.MIN_VALUE);

  public void testConstantsMaxFactorial() {

    assertThat(UnsignedLongs.join(",", 1, 2)).isEqualTo("1,2");
    assertThat(UnsignedLongs.join(",", -1, Long.MIN_VALUE))
        .isEqualTo("18446744073709551615,9223372036854775808");
    assertThat(UnsignedLongs.join("", 1, 2, 3)).isEqualTo("123");
    assertThat(UnsignedLongs.join("", -1, Long.MIN_VALUE))
        .isEqualTo("184467440737095516159223372036854775808");
  }

  @J2ktIncompatible

   *
   * <p>Instead of throwing {@link ArithmeticException}, this method silently saturates to either
   * {@link Long#MAX_VALUE} or {@link Long#MIN_VALUE}. This behavior can be useful when decomposing
   * a duration in order to call a legacy API which requires a {@code long, TimeUnit} pair.
   */
  @J2ktIncompatible
  @GwtIncompatible // Duration

      assertThat(UnsignedBytes.checkedCast(toUnsignedInt(value))).isEqualTo(value);
    }
    assertCastFails(256L);
    assertCastFails(-1L);
    assertCastFails(Long.MAX_VALUE);
    assertCastFails(Long.MIN_VALUE);
  }

  public void testSaturatedCast() {
    for (byte value : VALUES) {
      assertThat(UnsignedBytes.saturatedCast(toUnsignedInt(value))).isEqualTo(value);
    }

     */
    @Nested
    @DisplayName("Wire format method behaviour")
    class WireFormatMethods {
        @ParameterizedTest
        @ValueSource(ints = { 0, 1, -1, Integer.MAX_VALUE, Integer.MIN_VALUE })
        @DisplayName("writeSetupWireFormat returns 0 for all indices")
        void writeSetupWireFormatReturnsZero(int index) {
            TransWaitNamedPipeResponse resp = new TransWaitNamedPipeResponse();

    }

    /**
     * Parameterised test for a selection of edge and typical values.
     */
    @ParameterizedTest(name = "Encode and decode {0}")
    @ValueSource(longs = { 0L, 1L, -1L, Long.MAX_VALUE, Long.MIN_VALUE })
    public void testEncodeWithVariousValues(long val) throws NdrException {
        NdrHyper hyper = new NdrHyper(val);
        // Create buffer with extra space for alignment

   *     <ul>
   *       <li>{@code x} is infinite or NaN
   *       <li>{@code x}, after being rounded to a mathematical integer using the specified rounding
   *           mode, is either less than {@code Integer.MIN_VALUE} or greater than {@code
   *           Integer.MAX_VALUE}
   *       <li>{@code x} is not a mathematical integer and {@code mode} is {@link
   *           RoundingMode#UNNECESSARY}
   *     </ul>
   */

    // escaping elements from a map you would use a ArrayBasedCharEscaper).
    UnicodeEscaper escaper =
        new ArrayBasedUnicodeEscaper(
            SIMPLE_REPLACEMENTS, Character.MIN_VALUE, Character.MAX_CODE_POINT, null) {
          @Override
          protected char[] escapeUnsafe(int c) {
            return NO_CHARS;
          }
        };
    EscaperAsserts.assertBasic(escaper);

                Arguments.of(1, 1L, 1L, 1L, 1L), // ones
                Arguments.of(123, 456L, 789L, 101112L, 131415L), // arbitrary positives
                Arguments.of(Integer.MAX_VALUE, Long.MAX_VALUE, Long.MIN_VALUE, 999_999_999_999L, -1L), // extremes
                Arguments.of(-1, -2L, -3L, -4L, -5L) // negative values
        );
    }

    // --- Mockito interaction: verify each getter is invoked and returns stubbed values ---