;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2015 Eric Bavier <bavier@member.fsf.org>
;;; Copyright © 2016 Alex Sassmannshausen <alex@pompo.co>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix 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 General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.

(define-module (test-cpan)
  #:use-module (guix import cpan)
  #:use-module (guix base32)
  #:use-module (guix hash)
  #:use-module (guix tests)
  #:use-module (guix grafts)
  #:use-module (srfi srfi-64)
  #:use-module (ice-9 match))

;; Globally disable grafts because they can trigger early builds.
(%graft? #f)

(define test-json
  "{
  \"metadata\" : {
    \"prereqs\" : {
      \"runtime\" : {
        \"requires\" : {
          \"Test::Script\" : \"1.05\",
        }
      }
    }
    \"name\" : \"Foo-Bar\",
    \"version\" : \"0.1\"
  }
  \"name\" : \"Foo-Bar-0.1\",
  \"distribution\" : \"Foo-Bar\",
  \"license\" : [
    \"perl_5\"
  ],
  \"abstract\" : \"Fizzle Fuzz\",
  \"download_url\" : \"http://example.com/Foo-Bar-0.1.tar.gz\",
  \"author\" : \"Guix\",
  \"version\" : \"0.1\"
}")

(define test-source
  "foobar")

(test-begin "cpan")

(test-assert "cpan->guix-package"
  ;; Replace network resources with sample data.
  (mock ((guix build download) url-fetch
         (lambda* (url file-name
                       #:key
                       (mirrors '()) verify-certificate?)
           (with-output-to-file file-name
             (lambda ()
               (display
                (match url
                  ("https://api.metacpan.org/release/Foo-Bar"
                   test-json)
                  ("https://api.metacpan.org/module/Test::Script"
                   "{ \"distribution\" : \"Test-Script\" }")
                  ("http://example.com/Foo-Bar-0.1.tar.gz"
                   test-source)
                  (_ (error "Unexpected URL: " url))))))))
    (match (cpan->guix-package "Foo::Bar")
      (('package
         ('name "perl-foo-bar")
         ('version "0.1")
         ('source ('origin
                    ('method 'url-fetch)
                    ('uri ('string-append "http://example.com/Foo-Bar-"
                                          'version ".tar.gz"))
                    ('sha256
                     ('base32
                      (? string? hash)))))
         ('build-system 'perl-build-system)
         ('inputs
          ('quasiquote
           (("perl-test-script" ('unquote 'perl-test-script)))))
         ('home-page "http://search.cpan.org/dist/Foo-Bar")
         ('synopsis "Fizzle Fuzz")
         ('description 'fill-in-yourself!)
         ('license (package-license perl)))
       (string=? (bytevector->nix-base32-string
                  (call-with-input-string test-source port-sha256))
                 hash))
      (x
       (pk 'fail x #f)))))

(test-equal "source-url-http"
  ((@@ (guix import cpan) fix-source-url)
   "http://cpan.metacpan.org/authors/id/T/TE/TEST/Foo-Bar-0.1.tar.gz")
  "mirror://cpan/authors/id/T/TE/TEST/Foo-Bar-0.1.tar.gz")

(test-equal "source-url-https"
  ((@@ (guix import cpan) fix-source-url)
   "https://cpan.metacpan.org/authors/id/T/TE/TEST/Foo-Bar-0.1.tar.gz")
  "mirror://cpan/authors/id/T/TE/TEST/Foo-Bar-0.1.tar.gz")

(test-end "cpan")
