when(mockConnection.getDoInput()).thenReturn(true);
        when(mockConnection.getDoOutput()).thenReturn(true);
        when(mockConnection.getIfModifiedSince()).thenReturn(12345L);
        when(mockConnection.getUseCaches()).thenReturn(false);
        when(mockConnection.getReadTimeout()).thenReturn(1000);
        when(mockConnection.getConnectTimeout()).thenReturn(2000);

        assertEquals("FF", Hexdump.toHexString(255, 2));

        // Test larger values
        assertEquals("00001234", Hexdump.toHexString(0x1234, 8));
        assertEquals("1234", Hexdump.toHexString(0x1234, 4));
        assertEquals("34", Hexdump.toHexString(0x1234, 2));

        // Test negative values (treated as unsigned)
        assertEquals("FFFFFFFF", Hexdump.toHexString(-1, 8));

    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)
  }

@DisplayName("Encdec Utility Tests")
class EncdecTest extends BaseTest {

    @Test
    @DisplayName("Should encode and decode 16-bit integers")
    void testInt16Operations() {
        // Given
        short value = 0x1234;
        byte[] buffer = new byte[2];

        // When - encode little endian
        Encdec.enc_uint16le(value, buffer, 0);
        short decoded = (short) Encdec.dec_uint16le(buffer, 0);

        // Then

        // Test different sizes
        assertEquals("00", Hexdump.toHexString(0, 2));
        assertEquals("FF", Hexdump.toHexString(255, 2));
        assertEquals("1234", Hexdump.toHexString(0x1234, 4));
    }

    @Test
    @DisplayName("Should convert long to hex string with padding")
    void testLongToHexString() {
        // Test various long values

    @DisplayName("Read array delegates to read with offset and length")
    void readArrayDelegatesToReadWithOffsetAndLength() throws IOException {
        // Create message with data
        byte[] data = new byte[] { 1, 2, 3, 4, 5 };
        InputStream in = new ByteArrayInputStream(concat(messageHeader(5), data));
        SocketInputStream sis = new SocketInputStream(in);

        // Read using array-only method

    }

    @Test
    @DisplayName("Should handle parsing invalid message bytes")
    void testInvalidMessageBytes() {
        // Given
        byte[] invalidBytes = { 1, 2, 3, 4, 5 }; // Too short and invalid

        // When/Then
        assertThrows(IOException.class, () -> {
            new Type1Message(invalidBytes);
        });
    }

    @Test

    void testInitDefaultsWithPresetFlags() throws CIFSException {
        BaseConfiguration testConfig = new BaseConfiguration(false);
        testConfig.flags2 = 0x1234;
        testConfig.capabilities = 0x5678;

        testConfig.initDefaults();

        assertEquals(0x1234, testConfig.getFlags2());
        assertEquals(0x5678, testConfig.getCapabilities());
    }

    @Test

    // Now change the inputs and see result dynamically change as well

    list1.add(2);
    List<Integer> list3 = newArrayList(3);
    input.add(1, list3);

    assertEquals(asList(1, 2, 3, 4), newArrayList(result));
    assertEquals("[1, 2, 3, 4]", result.toString());
  }

  public void testConcatVarargs() {
    List<Integer> list1 = newArrayList(1);
    List<Integer> list2 = newArrayList(4);

    // Now change the inputs and see result dynamically change as well

    list1.add(2);
    List<Integer> list3 = newArrayList(3);
    input.add(1, list3);

    assertEquals(asList(1, 2, 3, 4), newArrayList(result));
    assertEquals("[1, 2, 3, 4]", result.toString());
  }

  public void testConcatVarargs() {
    List<Integer> list1 = newArrayList(1);
    List<Integer> list2 = newArrayList(4);