// Simulate successful verification
        when(mockResponse.verifySignature(buffer, offset, size)).thenReturn(true);
        assertTrue(mockResponse.verifySignature(buffer, offset, size));

        // Simulate failed verification
        when(mockResponse.verifySignature(buffer, offset, size)).thenReturn(false);
        assertFalse(mockResponse.verifySignature(buffer, offset, size));

        // Verify the method was called

        }

        if (!verifySignature(buffer, start, len)) {
            throw new SMBProtocolDecodingException("Signature verification failed for " + getClass().getName());
        }

        setAsyncHandled(false);
        received();
    }

    /**
     *
     * {@inheritDoc}
     *
     * @see jcifs.util.transport.Response#verifySignature(byte[], int, int)
     */
    @Override

      val trustedCert = trustRootIndex.findByIssuerAndSignature(toVerify)
      if (trustedCert != null) {
        if (result.size > 1 || toVerify != trustedCert) {
          result.add(trustedCert)
        }
        if (verifySignature(trustedCert, trustedCert, result.size - 2)) {
          return result // The self-signed cert is a root CA. We're done.
        }
        foundTrustedCertificate = true
        continue
      }

     * @param i the starting index in the buffer
     * @param size the size of the signature data
     * @return whether signature verification is successful
     */
    boolean verifySignature(byte[] buffer, int i, int size);

    /**
     * Checks if signature verification failed.
     *
     * @return whether signature verification failed
     */
    boolean isVerifyFailed();

    /**