.append(Hexdump.toHexString(ntlmsspFlags, 8))
                .append(",workstation=")
                .append(workstation)
                .append(",isEstablished=")
                .append(isEstablished)
                .append(",state=")
                .append(state)
                .append(",serverChallenge=");
        if (serverChallenge == null) {
            ret.append("null");

    }

    @Test
    @DisplayName("isEstablished short-circuits on not completed and does not call delegate")
    void testIsEstablishedShortCircuit() {
        SpnegoContext ctx = newContext();
        // The mock setup is unnecessary since we never call it
        assertFalse(ctx.isEstablished());
        verify(this.mechContext, never()).isEstablished();
    }

    @Test

    void testConstructor_withSigning() {
        // Test constructor when signing is enabled
        NtlmContext context = new NtlmContext(mockAuth, true);
        assertNotNull(context);
        assertFalse(context.isEstablished());
        assertNull(context.getServerChallenge());
        assertNull(context.getSigningKey());
        assertNull(context.getNetbiosName());

     */
    byte[] getSigningKey() throws CIFSException;

    /**
     * Checks whether the security context is established.
     * @return whether the context is established
     */
    boolean isEstablished();

    /**
     * Initializes the security context with the given token.
     * @param token the input token bytes
     * @param off offset into the token array
     * @param len length of token data