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;; disfluid, implementation of the Solid specification
;; Copyright (C) 2021  Vivien Kraus

;; This program is free software: you can redistribute it and/or modify
;; it under the terms of the GNU Affero General Public License as
;; published by the Free Software Foundation, either version 3 of the
;; License, or (at your option) any later version.

;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;; GNU Affero General Public License for more details.

;; You should have received a copy of the GNU Affero General Public License
;; along with this program.  If not, see <https://www.gnu.org/licenses/>.

(use-modules (webid-oidc jwk)
             (sxml simple)
             (webid-oidc testing)
             (webid-oidc serializable)
             (oop goops))

(define (xml->key xml)
  (call-with-input-string xml read/xml))

(with-test-environment
 "xml-keys"
 (lambda ()
   (let ((key-xml
          "<?xml version=\"1.0\" encoding=\"utf-8\"?>
<ec-point xmlns=\"webid-oidc/jwk\"
     kty=\"EC\"
     x=\"l8tFrhx-34tV3hRICRDY9zCkDlpBhF42UQUfWVAWBFs\"
     y=\"9VE4jf_Ok_o64zbTTlcuNJajHmt6v9TDVrU0CdvGRDA\"
     crv=\"P-256\" />")
         (key (make <ec-point>
                #:crv 'P-256
                #:x "l8tFrhx-34tV3hRICRDY9zCkDlpBhF42UQUfWVAWBFs"
                #:y "9VE4jf_Ok_o64zbTTlcuNJajHmt6v9TDVrU0CdvGRDA")))
     (let ((parsed-once (xml->key key-xml))
           (printed-once (call-with-output-string
                          (lambda (port)
                            (sxml->xml (->sxml key) port)))))
       (let ((parsed-twice (xml->key printed-once))
             (printed-twice (call-with-output-string
                              (lambda (port)
                                (sxml->xml (->sxml parsed-once) port)))))
         (let ((parsed-thrice (xml->key printed-twice))
               (printed-thrice (call-with-output-string
                                 (lambda (port)
                                   (sxml->xml (->sxml parsed-twice) port)))))
           (unless (and (equal? parsed-once key)
                        (equal? parsed-twice parsed-once)
                        (equal? parsed-thrice parsed-twice)
                        (equal? printed-twice printed-once)
                        (equal? printed-thrice printed-twice))
             (exit 1))))))))