/**
     * @throws Exception
     */
    @Test
    public void testIsToOs() throws Exception {
        final int result = copy(is, os);
        assertThat(result, is(srcBytes.length));
        assertThat(os.toByteArray(), is(srcBytes));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testReaderToWriter() throws Exception {
        final int result = copy(reader, writer);

    @Test
    void testNoArgsConstructor() {
        // Test the no-argument constructor
        ConnectionTimeoutException exception = new ConnectionTimeoutException();
        assertNull(exception.getMessage(), "Message should be null for no-arg constructor");
        assertNull(exception.getCause(), "Cause should be null for no-arg constructor");
    }

    @Test
    void testStringConstructor() {

        verify(session, times(4)).close();
        verify(transport, times(4)).close();
    }

    @Test
    @DisplayName("isSMB2 true and exception fallback to false")
    void isSMB2Cases() throws Exception {
        // Happy path returns true; transport exception path returns false
        when(transport.isSMB2()).thenReturn(true);
        assertTrue(handle.isSMB2());

        reset(transport);

     * Tests the constructor with a null byte array, which should throw an exception.
     */
    @Test
    void testConstructorWithNullData() {
        // A null byte array should cause a PACDecodingException.
        PACDecodingException exception = assertThrows(PACDecodingException.class, () -> new PacCredentialType(null));
        assertEquals("Invalid PAC credential type", exception.getMessage());
    }

    /**

    }

    @Test
    public void testReleaseSendRegion() throws Exception {
        RdmaMemoryRegion region = bufferManager.getSendRegion(1024);
        assertNotNull(region);

        // Release should not throw exception
        assertDoesNotThrow(() -> bufferManager.releaseSendRegion(region));
    }

    @Test
    public void testGetReceiveRegion() throws Exception {
        RdmaMemoryRegion region = bufferManager.getReceiveRegion();

    // Test get method with empty file
    public void test_get_emptyFile() throws Exception {
        writeTestFile("");

        OptionalEntity<CharMappingItem> result = charMappingFile.get(1L);
        assertFalse(result.isPresent());
    }

    // Test get method with valid data
    public void test_get_validData() throws Exception {
        writeTestFile("a,b => c\nd,e => f\n");

    }

    @Test
    @DisplayName("Test decode throws exception with zero length")
    void testDecodeThrowsExceptionWithZeroLength() {
        byte[] buffer = new byte[28];

        SMBProtocolDecodingException exception = assertThrows(SMBProtocolDecodingException.class, () -> response.decode(buffer, 0, 0),
                "Should throw exception when length is 0");

    MockCallback callback = new MockCallback(e);
    addCallback(f, callback, directExecutor());
  }

  public void testOnSuccessThrowsRuntimeException() throws Exception {
    RuntimeException exception = new RuntimeException();
    String result = "result";
    SettableFuture<String> future = SettableFuture.create();
    int[] successCalls = new int[1];
    int[] failureCalls = new int[1];

 *
 */
public class TokenizerTest {

    /**
     * @throws Exception
     */
    @Test
    public void testEOF() throws Exception {
        final Tokenizer tokenizer = new Tokenizer("");
        assertThat(tokenizer.nextToken(), is(Tokenizer.TT_EOF));
        assertThat(tokenizer.nextToken(), is(Tokenizer.TT_EOF));
    }

    /**
     * @throws Exception
     */
    @Test

        void testNullConfigurationThrowsException() throws Exception {
            // Given
            Constructor<SmbComNtCancel> constructor = SmbComNtCancel.class.getDeclaredConstructor(Configuration.class, int.class);
            constructor.setAccessible(true);

            // When & Then
            InvocationTargetException exception = assertThrows(InvocationTargetException.class, () -> constructor.newInstance(null, 1));