serverWriter.writeMessageFrame(OPCODE_TEXT, payload)
    assertData("8105")
    assertData(payload)
  }

  @Test fun serverLargeBufferedPayloadWrittenAsOneFrame() {
    val length = 12345
    val payload: ByteString = (binaryData(length))
    serverWriter.writeMessageFrame(OPCODE_TEXT, payload)
    assertData("817e")
    assertData(format("%04x", length))
    assertData(payload)
  }

    assertEquals(string.substring(5), readFully(reader));
    assertFullyRead(reader);
  }

  public void testIllegalArguments() throws IOException {
    CharSequenceReader reader = new CharSequenceReader("12345");

    char[] buf = new char[10];
    assertThrows(IndexOutOfBoundsException.class, () -> reader.read(buf, 0, 11));

    assertThrows(IndexOutOfBoundsException.class, () -> reader.read(buf, 10, 1));

     *
     * @throws IOException if an I/O error occurs
     */
    @Test
    void testConstructorWithWrongOid() throws IOException {
        byte[] wrongOidToken = createGssApiWrapper(new ASN1ObjectIdentifier("1.2.3.4.5"), new byte[0]);
        assertThrows(PACDecodingException.class, () -> new KerberosToken(wrongOidToken));
    }

    /**
     * Test constructor with a malformed Kerberos token (invalid inner structure).
     *

        // Test case: close() with non-zero retval from MsrpcSamrCloseHandle, should throw SmbException
        String server = "testServer";
        int access = 123;
        int errorRetval = 12345; // Simulate an error code

        // Setup for successful constructor
        doNothing().when(mockHandle).sendrecv(any(MsrpcSamrConnect4.class));

        // Setup for close to return an error

    }

    @Test
    void constructor_shouldThrowSmbExceptionOnRpcError() throws IOException {
        // Arrange
        String server = "testServer";
        int access = 123;
        int errorCode = 12345;

        doAnswer(invocation -> {
            MsrpcLsarOpenPolicy2 rpc = invocation.getArgument(0);
            rpc.retval = errorCode; // Simulate RPC error
            return null;

    private Configuration mockConfig;

    private SmbComSeekResponse response;

    @BeforeEach
    void setUp() {
        // Setup mock configuration to avoid NPE
        when(mockConfig.getPid()).thenReturn(12345);
        response = new SmbComSeekResponse(mockConfig);
    }

    /* ------------------------------------------------------------------ */
    /* 1. Construction and basic getters                                    */

        verify(messageBlock).setResponse(null);
    }

    @Test
    @DisplayName("Test setMid and getMid methods")
    void testSetAndGetMid() {
        // Given
        long expectedMid = 12345L;
        doNothing().when(messageBlock).setMid(expectedMid);
        when(messageBlock.getMid()).thenReturn(expectedMid);

        // When
        messageBlock.setMid(expectedMid);

    assertPermutationsCount(6, Collections2.permutations(newArrayList(1, 2, 3)));
    assertPermutationsCount(5040, Collections2.permutations(newArrayList(1, 2, 3, 4, 5, 6, 7)));
    assertPermutationsCount(40320, Collections2.permutations(newArrayList(1, 2, 3, 4, 5, 6, 7, 8)));
  }

  public void testPermutationSetSizeOverflow() {
    // 13 elements overflow an int

        when(response.getDigest()).thenReturn(digest);
        response.setDigest(digest);
        assertEquals(digest, response.getDigest());

        // Test mid methods
        long mid = 123456L;
        doNothing().when(response).setMid(mid);
        when(response.getMid()).thenReturn(mid);
        response.setMid(mid);
        assertEquals(mid, response.getMid());

        // Test command methods

  public void testBytes() {
    Sink sink = new Sink(4); // byte order insignificant here
    byte[] expected = {1, 2, 3, 4, 5, 6, 7, 8};
    sink.putByte((byte) 1);
    sink.putBytes(new byte[] {2, 3, 4, 5, 6});
    sink.putByte((byte) 7);
    sink.putBytes(new byte[] {});
    sink.putBytes(new byte[] {8});
    HashCode unused = sink.hash();
    sink.assertInvariants(8);
    sink.assertBytes(expected);
  }