domainInfo.sid.revision = 1;
        domainInfo.sid.identifier_authority = new byte[] { 0, 0, 0, 0, 0, 5 };
        domainInfo.sid.sub_authority_count = 2;
        domainInfo.sid.sub_authority = new int[] { 21, 12345 };

        // Encode to buffer
        byte[] buffer = new byte[1024];
        NdrBuffer encodeBuffer = new NdrBuffer(buffer, 0);
        domainInfo.encode(encodeBuffer);

        // Decode from buffer

    Iterator<Integer> iterator = singleton(0).iterator();
    assertEquals(1, Iterators.size(iterator));
  }

  public void testSize_partiallyConsumed() {
    Iterator<Integer> iterator = asList(1, 2, 3, 4, 5).iterator();
    iterator.next();
    iterator.next();
    assertEquals(3, Iterators.size(iterator));
  }

  public void test_contains_nonnull_yes() {

        void shouldIdentifyFailedStates() {
            // Failed states: 5=disconnecting, 6=disconnected/invalid
            int[] failedStates = { 5, 6 };
            int[] nonFailedStates = { 0, 1, 2, 3, 4 };

            for (int state : failedStates) {
                transport.setState(state);
                assertTrue(transport.isFailed(), "State " + state + " should be failed");
            }

    // This sentence just isn't base64() encoded.
    assertFailsToDecode(base64(), "let's not talk of love or chains!");
    // A 4n+1 length string is never legal base64().
    assertFailsToDecode(base64(), "12345", "Invalid input length 5");
    // These have a combination of invalid length, unrecognized characters and wrong padding.
    assertFailsToDecode(base64(), "AB=C", "Unrecognized character: =");

        Name sourceName = new Name(mockConfig, "SourceName", 0x1C, "source.scope");
        sourceName.srcHashCode = 12345;

        Name name = new Name(mockConfig, sourceName);

        assertEquals("SOURCENAME", name.name);
        assertEquals(0x1C, name.hexCode);
        assertEquals("source.scope", name.scope);
        assertEquals(12345, name.srcHashCode);
    }

    @Test
    void getName_shouldReturnName() {

	PLHA 1234(R1), $0, R3                   // 06000000a86104d2
	PLHZ 1234(R1), $0, R3                   // 06000000a06104d2
	PLQ 1234(R1), $0, R4                    // 04000000e08104d2
	PLWA 1234(R1), $0, R3                   // 04000000a46104d2
	PLWZ 1234567890(R4), $0, R3             // 06004996806402d2
	PLWZ 1234567890(R0), $1, R3             // 06104996806002d2
	PLXSD 1234(R1), $0, V1                  // 04000000a82104d2

        @DisplayName("Should return tree ID")
        void testGetTid() {
            // Given
            when(mockResponse.getTid()).thenReturn(12345);

            // When
            int tid = mockResponse.getTid();

            // Then
            assertEquals(12345, tid, "Should return the configured tree ID");
            verify(mockResponse).getTid();
        }

        @Test

      Ordering.<Integer>natural().<Integer>nullsFirst();

  private static final List<@Nullable Integer> IN_ORDER_VALUES =
      unmodifiableList(Arrays.<@Nullable Integer>asList(null, 1, 2, 3, 4, 5));

  public void testCreateEmptyRangeFails() {
    for (BoundType lboundType : BoundType.values()) {
      for (BoundType uboundType : BoundType.values()) {
        assertThrows(

    }

    @Test
    @DisplayName("readn should read complete data when available")
    void testReadnComplete() throws IOException {
        byte[] buffer = new byte[10];
        byte[] data = { 1, 2, 3, 4, 5 };
        ByteArrayInputStream bais = new ByteArrayInputStream(data);

        int bytesRead = SessionServicePacket.readn(bais, buffer, 0, 5);

        assertEquals(5, bytesRead);

        assertTrue(result.isPresent());
        assertEquals(testValue, result.get());
    }

    public void test_ofNullable_withBigDecimal() {
        BigDecimal testValue = new BigDecimal("123.456");
        OptionalEntity<BigDecimal> result = OptionalUtil.ofNullable(testValue);

        assertNotNull(result);
        assertTrue(result.isPresent());
        assertEquals(testValue, result.get());
    }