void testPreauthHashThreadSafety() throws Exception {
        // Setup SMB3.1.1 negotiation
        when(negotiateResponse.getSelectedDialect()).thenReturn(DialectVersion.SMB311);
        when(negotiateResponse.getSelectedPreauthHash()).thenReturn(1); // SHA-512
        setPrivateField(transport, "smb2", true);
        setPrivateField(transport, "negotiated", negotiateResponse);

        int threadCount = 10;

        // Given
        setPrivateField(response, "selectedPreauthHash", PreauthIntegrityNegotiateContext.HASH_ALGO_SHA512);

        // When
        int hash = response.getSelectedPreauthHash();

        // Then
        assertEquals(PreauthIntegrityNegotiateContext.HASH_ALGO_SHA512, hash);
    }

    @Test
    @DisplayName("Should return capabilities")

    }

    /**
     * Gets the pre-authentication integrity hash algorithm selected for SMB 3.1.1.
     *
     * @return the selectedPreauthHash
     */
    public int getSelectedPreauthHash() {
        return this.selectedPreauthHash;
    }

    /**
     * Gets the capabilities returned by the server.
     *
     * @return the server returned capabilities
     */

        if (!resp.getSelectedDialect().atLeast(DialectVersion.SMB311)) {
            throw new SmbUnsupportedOperationException();
        }

        MessageDigest dgst = switch (resp.getSelectedPreauthHash()) {
        case 1 -> Crypto.getSHA512();
        default -> throw new SmbUnsupportedOperationException();
        };
        if (oldHash != null) {
            dgst.update(oldHash);
        }