dialect == Smb2Constants.SMB2_DIALECT_0311 ? preauthIntegrity : SIGNCONTEXT_300);
    }

    /**
     * Derives the SMB3 application key from the session key using the appropriate KDF for the dialect.
     *
     * @param dialect the SMB dialect version
     * @param sessionKey the base session key

     * @return whether the protocol negotiation was successful
     */
    boolean isValid(CIFSContext cifsContext, SmbNegotiationRequest request);

    /**
     * Gets the SMB dialect version selected by the server.
     *
     * @return selected dialect
     */
    DialectVersion getSelectedDialect();

    /**
     * Checks whether the server has SMB message signing enabled.
     *

    }

    @Test
    @DisplayName("Should return dialect revision")
    void testGetDialectRevision() throws Exception {
        // Given
        setPrivateField(response, "dialectRevision", 0x0311);

        // When
        int dialect = response.getDialectRevision();

        // Then
        assertEquals(0x0311, dialect);
    }

    @Test
    @DisplayName("Should return server GUID")

    }

    @Test
    @DisplayName("Should return correct dialect version")
    void testGetDialect() {
        // When
        DialectVersion dialect = encryptionContext.getDialect();

        // Then
        assertEquals(DialectVersion.SMB311, dialect, "Should return the dialect set in constructor");
    }

    @Test
    @DisplayName("Should handle SMB 3.0 dialect")
    void testSMB300Dialect() {
        // When

     * Test validation of excessive negotiate context count.
     */
    @Test
    public void testExcessiveNegotiateContextCount() {
        byte[] buffer = createBasicNegotiateResponseBuffer();
        // Set SMB 3.1.1 dialect
        SMBUtil.writeInt2(0x0311, buffer, 4);
        // Set excessive negotiate context count (should be limited to 100)
        SMBUtil.writeInt2(1000, buffer, 6);
        // Set negotiate context offset to valid value

        // Then
        assertTrue(testConfig.isUseUnicode());
        assertFalse(testConfig.isDisablePlainTextPasswords());
    }

    @Test
    @DisplayName("Should handle dialect version properties")
    void testDialectVersionProperties() throws CIFSException {
        // Given
        Properties props = new Properties();
        props.setProperty("jcifs.smb.client.minVersion", "SMB1");

        try (SmbSessionImpl session = this.treeConnection.getSession(); SmbTransportImpl transport = session.getTransport()) {
            jcifs.DialectVersion dialect = transport.getNegotiateResponse().getSelectedDialect();
            return transport.isSMB2() && dialect.atLeast(jcifs.DialectVersion.SMB300) && !dialect.atLeast(jcifs.DialectVersion.SMB311);
        } catch (final SmbException e) {

        }

        if (selected == null) {
            log.debug("Server returned an unknown dialect");
            return false;
        }

        if (!selected.atLeast(getConfig().getMinimumVersion()) || !selected.atMost(getConfig().getMaximumVersion())) {
            log.debug("Server selected an disallowed dialect version {} (min: {} max: {})", selected, getConfig().getMinimumVersion(),

        }

        final Smb2NegotiateResponse resp = (Smb2NegotiateResponse) this.negotiated;
        final DialectVersion dialect = resp.getSelectedDialect();
        int cipherId = -1;

        if (dialect.atLeast(DialectVersion.SMB311)) {
            cipherId = resp.getSelectedCipher();
            if (cipherId == -1) {

    @Override
    public boolean canReuse(final CIFSContext tc, final boolean forceSigning) {
        return this.getConfig().equals(tc.getConfig());
    }

    /**
     * Returns the index of the selected SMB dialect from the negotiation.
     *
     * @return the dialectIndex
     */
    public int getDialectIndex() {
        return this.dialectIndex;
    }

    /**