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+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2015 Federico Beffa <beffa@fbengineering.ch>
+;;;
+;;; 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-elpa)
+ #:use-module (guix import elpa)
+ #:use-module (guix tests)
+ #:use-module (srfi srfi-1)
+ #:use-module (srfi srfi-64)
+ #:use-module (ice-9 match))
+
+(define elpa-mock-archive
+ '(1
+ (ace-window .
+ [(0 9 0)
+ ((avy
+ (0 2 0)))
+ "Quickly switch windows." single
+ ((:url . "https://github.com/abo-abo/ace-window")
+ (:keywords "window" "location"))])
+ (auctex .
+ [(11 88 6)
+ nil "Integrated environment for *TeX*" tar
+ ((:url . "http://www.gnu.org/software/auctex/"))])))
+
+(define auctex-readme-mock "This is the AUCTeX description.")
+
+(define* (elpa-package-info-mock name #:optional (repo "gnu"))
+ "Simulate retrieval of 'archive-contents' file from REPO and extraction of
+information about package NAME. (Function 'elpa-package-info'.)"
+ (let* ((archive elpa-mock-archive)
+ (info (filter (lambda (p) (eq? (first p) (string->symbol name)))
+ (cdr archive))))
+ (if (pair? info) (first info) #f)))
+
+(define elpa-version->string
+ (@@ (guix import elpa) elpa-version->string))
+
+(define package-source-url
+ (@@ (guix import elpa) package-source-url))
+
+(define nil->empty
+ (@@ (guix import elpa) nil->empty))
+
+(define package-home-page
+ (@@ (guix import elpa) package-home-page))
+
+(define make-elpa-package
+ (@@ (guix import elpa) make-elpa-package))
+
+(test-begin "elpa")
+
+(define (eval-test-with-elpa pkg)
+ (mock
+ ;; replace the two fetching functions
+ ((guix import elpa) fetch-elpa-package
+ (lambda* (name #:optional (repo "gnu"))
+ (let ((pkg (elpa-package-info-mock name repo)))
+ (match pkg
+ ((name version reqs synopsis kind . rest)
+ (let* ((name (symbol->string name))
+ (ver (elpa-version->string version))
+ (url (package-source-url kind name ver repo)))
+ (make-elpa-package name ver
+ (nil->empty reqs) synopsis kind
+ (package-home-page (first rest))
+ auctex-readme-mock
+ url)))
+ (_ #f)))))
+ (match (elpa->guix-package pkg)
+ (('package
+ ('name "emacs-auctex")
+ ('version "11.88.6")
+ ('source
+ ('origin
+ ('method 'url-fetch)
+ ('uri ('string-append
+ "http://elpa.gnu.org/packages/auctex-" 'version ".tar"))
+ ('sha256 ('base32 (? string? hash)))))
+ ('build-system 'emacs-build-system)
+ ('home-page "http://www.gnu.org/software/auctex/")
+ ('synopsis "Integrated environment for *TeX*")
+ ('description (? string?))
+ ('license 'license:gpl3+))
+ #t)
+ (x
+ (pk 'fail x #f)))))
+
+(test-assert "elpa->guix-package test 1"
+ (eval-test-with-elpa "auctex"))
+
+(test-end "elpa")
+
+
+(exit (= (test-runner-fail-count (test-runner-current)) 0))