SID a1 = new SID("S-1-5-21-1-2-3-4");
            SID a2 = new SID("S-1-5-21-1-2-3-4");
            SID b = new SID("S-1-5-21-1-2-3-5");

            assertEquals(a1, a2);
            assertEquals(a1.hashCode(), a2.hashCode());
            assertNotEquals(a1, b);
            assertNotEquals(a1.hashCode(), b.hashCode());
            assertNotEquals(a1, new Object());
        }

        @Test

    private static final int MAX_PATH_SIZE = 32767;

    // Statistics
    private final AtomicLong totalValidations = new AtomicLong(0);
    private final AtomicLong failedValidations = new AtomicLong(0);
    private final AtomicLong bufferOverflowsPrevented = new AtomicLong(0);
    private final AtomicLong integerOverflowsPrevented = new AtomicLong(0);

    /**
     * Validate SMB response buffer bounds
     *

    @Test
    @DisplayName("readn should handle EOF correctly")
    void testReadnEOF() throws IOException {
        byte[] buffer = new byte[10];
        ByteArrayInputStream bais = new ByteArrayInputStream(new byte[0]);

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

        assertEquals(0, bytesRead);
    }

    @Test
    @DisplayName("readn should handle multiple read calls")

        void testToStringWithNestedExceptions() {
            Exception innermost = new IOException("Innermost exception");
            Exception middle = new RuntimeException("Middle exception", innermost);
            Exception rootCause = new IllegalStateException("Outer exception", middle);
            TransportException exception = new TransportException("Transport failed", rootCause);

            String result = exception.toString();

        Configuration cfg = mock(Configuration.class);
        SmbComLockingAndX cmd = new SmbComLockingAndX(cfg);
        // arrays of size 1 so internal method will attempt to decode a range
        setField(cmd, "unlocks", new LockingAndXRange[] { new LockingAndXRange(false) });
        setField(cmd, "locks", new LockingAndXRange[] { new LockingAndXRange(false) });
        setField(cmd, "largeFile", false);

        byte[] dst = new byte[fileName.length() + 1];
        int result = smbComOpenAndX.writeBytesWireFormat(dst, 0);
        assertEquals(fileName.length() + 1, result);
    }

    /**
     * Test readParameterWordsWireFormat method.
     */
    @Test
    void testReadParameterWordsWireFormat() {
        smbComOpenAndX = new SmbComOpenAndX(fileName, access, 0, andx);
        byte[] buffer = new byte[0];

        Smb2LeaseKey key = new Smb2LeaseKey();
        DirectoryLeaseContext context = new DirectoryLeaseContext(key, 0, DirectoryCacheScope.IMMEDIATE_CHILDREN);

        byte[] name = context.getName();
        assertNotNull(name);
        assertEquals("DLse", new String(name));
    }

    @Test
    public void testSettersAndGetters() {
        Smb2LeaseKey key1 = new Smb2LeaseKey();

// Create suggestion item with text, readings, and metadata
String[][] readings = new String[2][];
readings[0] = new String[]{"kensaku", "engine"};
readings[1] = new String[]{"search", "injin"};

String[] tags = new String[]{"technology", "search"};
String[] roles = new String[]{"admin", "user"};

SuggestItem item = new SuggestItem(
    new String[]{"Search Engine", "検索エンジン"}, // text variations

    void testMultipleWireFormatOperations() {
        // Arrange
        transWaitNamedPipe = new TransWaitNamedPipe(mockConfig, testPipeName);
        byte[] dst1 = new byte[10];
        byte[] dst2 = new byte[10];

        // Act
        int result1 = transWaitNamedPipe.writeSetupWireFormat(dst1, 0);
        int result2 = transWaitNamedPipe.writeSetupWireFormat(dst2, 0);

        // Assert

        NdrBuffer buf = new NdrBuffer(new byte[1024], 0);
        m.encode(buf);
        // decode back
        buf.setIndex(0);
        m.decode_header(buf);
        assertEquals(0, m.ptype);
    }

    @Test
    void testDecodeHeaderInvalidVersion() {
        NdrBuffer buf = new NdrBuffer(new byte[10], 0);
        buf.enc_ndr_small(4); // bad major
        buf.enc_ndr_small(0);
        TestMessage msg = new TestMessage();