this.tx_buf_size = Math.min(this.tx_buf_size, this.server.maxBufferSize);

        this.capabilities &= this.server.scapabilities;
        if ((this.server.scapabilities & SmbConstants.CAP_EXTENDED_SECURITY) == SmbConstants.CAP_EXTENDED_SECURITY) {
            this.capabilities |= SmbConstants.CAP_EXTENDED_SECURITY; // & doesn't copy high bit
        }

        assertEquals(0x80, response.getServerData().scapabilities);
        assertEquals(-128, response.getServerData().serverTimeZone);
        assertEquals(8, response.getServerData().encryptionKeyLength);
    }

    @Test
    public void testReadBytesWireFormatWithoutExtendedSecurity() throws UnsupportedEncodingException {
        response.getServerData().scapabilities = 0;
        response.getServerData().encryptionKeyLength = 8;

        serverData.scapabilities = Integer.MAX_VALUE;

        assertEquals(Integer.MAX_VALUE, serverData.sflags2);
        assertEquals(Integer.MAX_VALUE, serverData.smaxMpxCount);
        assertEquals(Integer.MAX_VALUE, serverData.maxBufferSize);
        assertEquals(Integer.MAX_VALUE, serverData.sessKey);
        assertEquals(Integer.MAX_VALUE, serverData.scapabilities);

            // Verify each is a power of 2
            for (int cap : capabilities) {
                assertTrue(isPowerOfTwo(cap), "Capability 0x" + Integer.toHexString(cap) + " should be a power of 2");
            }

            // Verify no overlapping bits
            for (int i = 0; i < capabilities.length; i++) {
                for (int j = i + 1; j < capabilities.length; j++) {

    }

    /**
     * Gets the capabilities returned by the server.
     *
     * @return the server returned capabilities
     */
    public final int getCapabilities() {
        return this.capabilities;
    }

    /**
     * Gets the common capabilities negotiated between client and server.
     *
     * @return the common/negotiated capabilities
     */

        }
        snd_buf_size = Math.min(snd_buf_size, server.maxBufferSize);
        capabilities &= server.capabilities;
        if ((server.capabilities & CAP_EXTENDED_SECURITY) == CAP_EXTENDED_SECURITY) {
            capabilities |= CAP_EXTENDED_SECURITY; // & doesn't copy high bit
        }

        if ((capabilities & SmbConstants.CAP_UNICODE) == 0) {
            // server doesn't want unicode

    /** Default capabilities */
    int DEFAULT_CAPABILITIES =
            (USE_NTSMBS ? CAP_NT_SMBS : 0) | (USE_NTSTATUS ? CAP_STATUS32 : 0) | (USE_UNICODE ? CAP_UNICODE : 0) | CAP_DFS;
    /** FLAGS2 value */
    int FLAGS2 = Config.getInt("jcifs.smb1.smb.client.flags2", DEFAULT_FLAGS2);
    /** Capabilities value */

        // Given & When
        int securityMode = 0x03;
        int capabilities = 0x0F;
        long previousSessionId = 0xFEDCBA9876543210L;
        byte[] token = { 0x0A, 0x0B, 0x0C };

        Smb2SessionSetupRequest req = new Smb2SessionSetupRequest(mockContext, securityMode, capabilities, previousSessionId, token);

        // Then - verify fields are set correctly using reflection

    void testDecodeValidBuffer() throws SMBProtocolDecodingException {
        // Prepare test data
        byte[] buffer = new byte[64];
        int bufferIndex = 10;

        // Set capabilities (4 bytes)
        int testCapabilities = 0x12345678;
        SMBUtil.writeInt4(testCapabilities, buffer, bufferIndex);

        // Set server GUID (16 bytes)
        byte[] testGuid = new byte[16];

            // Test multiple capabilities
            int combinedCaps = Smb2TreeConnectResponse.SMB2_SHARE_CAP_DFS | Smb2TreeConnectResponse.SMB2_SHARE_CAP_CONTINUOUS_AVAILABILITY;
            setPrivateField(response, "capabilities", combinedCaps);
            assertEquals(combinedCaps, response.getCapabilities(), "Should handle multiple capabilities");
        }

        @Test
        @DisplayName("Should handle maximal access")