roleQueryHelperImpl.headerKey = "fess3";

        roleQueryHelperImpl.encryptedHeaderValue = false;
        roleSet = buildByHeader(roleQueryHelperImpl, getMockRequest());
        assertEquals(0, roleSet.size());

        roleQueryHelperImpl.headerKey = "fess4";

        roleQueryHelperImpl.cipher = cipher;
        roleQueryHelperImpl.encryptedHeaderValue = true;
        roleSet = buildByHeader(roleQueryHelperImpl, getMockRequest());

        this.headerKey = headerKey;
    }

    /**
     * Sets whether the header value is encrypted.
     * @param encryptedHeaderValue Whether the header value is encrypted.
     */
    public void setEncryptedHeaderValue(final boolean encryptedHeaderValue) {
        this.encryptedHeaderValue = encryptedHeaderValue;
    }

    /**
     * Sets the cookie key.
     * @param cookieKey The cookie key.
     */