assertEquals(0, roleSet.size());

        roleQueryHelperImpl.cookieKey = "fess3";

        roleQueryHelperImpl.encryptedCookieValue = false;
        roleSet = buildByCookie(roleQueryHelperImpl, getMockRequest());
        assertEquals(0, roleSet.size());

        roleQueryHelperImpl.cookieKey = "fess4";

        roleQueryHelperImpl.cipher = cipher;

        this.encryptedHeaderValue = encryptedHeaderValue;
    }

    /**
     * Sets the cookie key.
     * @param cookieKey The cookie key.
     */
    public void setCookieKey(final String cookieKey) {
        this.cookieKey = cookieKey;
    }

    /**
     * Sets whether the cookie value is encrypted.
     * @param encryptedCookieValue Whether the cookie value is encrypted.
     */