when(mockContext.getConfig()).thenReturn(mockConfig);
        when(mockNegotiate.getServerData()).thenReturn(new ServerDataStub());
    }

    private void setupNegotiateStubs() {
        when(mockNegotiate.getNegotiatedCapabilities()).thenReturn(0x00123456);
        when(mockNegotiate.getNegotiatedSendBufferSize()).thenReturn(65535);
        when(mockNegotiate.getNegotiatedMpxCount()).thenReturn(65535);

    }

    /**
     * Returns the server capabilities negotiated during the SMB handshake.
     *
     * @return the negotiated capabilities
     */
    public int getNegotiatedCapabilities() {
        return this.capabilities;
    }

    /**
     * Gets the negotiated send buffer size.
     *
     * @return negotiated send buffer size
     */

        response.getServerData().maxBufferSize = 16384;

        assertTrue(response.isValid(mockContext, request));
        // After negotiation, check if unicode capability is preserved
        assertTrue((response.getNegotiatedCapabilities() & SmbConstants.CAP_UNICODE) != 0);
    }

    @Test
    public void testIsValidWithInvalidDialect() {
        SmbNegotiationRequest request = mock(SmbNegotiationRequest.class);

            final Object cred) throws SmbException, GeneralSecurityException {
        super(tc.getConfig(), SMB_COM_SESSION_SETUP_ANDX, andx);
        this.negotiated = negotiated;
        this.capabilities = negotiated.getNegotiatedCapabilities();
        final ServerData server = negotiated.getServerData();
        if (server.security == SmbConstants.SECURITY_USER) {
            if (cred instanceof final NtlmPasswordAuthenticator a) {