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;;; Excercise RSS 2.0 reader.                  -*- Scheme -*-
;;;
;;; Copyright (C) 2008  Ludovic Courtès <ludo@gnu.org>
;;;
;;; This file is part of Skribilo.
;;;
;;; Skribilo is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU Lesser General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; Skribilo 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 Lesser
;;; General Public License for more details.
;;;
;;; You should have received a copy of the GNU Lesser General Public License
;;; along with this program.  If not, see <http://www.gnu.org/licenses/>.

(define-module (tests rss-2)
  :use-module (ice-9 match)
  :use-module (skribilo reader)
  :use-module (srfi srfi-64))

(if (or (not (false-if-exception (resolve-interface '(sxml simple))))
        (not (false-if-exception (resolve-interface '(htmlprag)))))
    (exit 77))

(define %rss2-read #f)


(define-macro (test-match name pattern xml)
  ;; Test whether the RSS feed in XML matches PATTERN.
  `(test-equal ,name #t
     (match (%rss2-read (open-input-string ,xml))
       (,pattern #t)
       (_        #f))))



(test-begin "rss-2")

(test-eq    "make-reader" #t
  (begin
    (set! %rss2-read (make-reader 'rss-2))
    (procedure? %rss2-read)))

(test-match "basic"
  `(document ,'#:title (list "The Channel")
      (chapter ,'#:title (list "Foo Bar")
         ,_
         (list "Hello world.")))

"<?xml version=\"1.0\" encoding=\"iso-8859-1\" ?>
 <rss version=\"2.0\">
 <channel>
   <title>The Channel</title>
   <link>http://example.net/</link>
   <description>Some channel description...</description>

   <item>
     <title>Foo Bar</title>
     <pubDate>Mon, 06 Jun 2005 23:05:00 +0200</pubDate>
     <description>Hello world.</description>
   </item>
 </channel>
 </rss>")

(test-match "with HTML markup"
  `(document ,'#:title (list (emph "The") " Channel")
      (chapter ,'#:title (list "Foo " (bold "&") " Bar")
         ,_
         (list (p "Hello world."))))

"<?xml version=\"1.0\" encoding=\"iso-8859-1\" ?>
 <rss version=\"2.0\">
 <channel>
   <title>&lt;em&gt;The&lt;/em&gt; Channel</title>
   <link>http://example.net/</link>
   <description>Some channel description...</description>

   <item>
     <title>Foo &lt;b&gt;&amp;&lt;/b&gt; Bar</title>
     <pubDate>Mon, 06 Jun 2005 23:05:00 +0200</pubDate>
     <description>&lt;P&gt;Hello world.&lt;/P&gt;</description>
   </item>
 </channel>
 </rss>")

(test-end "rss-2")


(exit (= (test-runner-fail-count (test-runner-current)) 0))