;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2017 Ludovic Courtès <ludo@gnu.org>
;;;
;;; 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-discovery)
  #:use-module (guix discovery)
  #:use-module (guix build-system)
  #:use-module (guix utils)
  #:use-module (srfi srfi-64)
  #:use-module (ice-9 match))

(define %top-srcdir
  (dirname (search-path %load-path "guix.scm")))

(test-begin "discovery")

(test-assert "scheme-modules"
  (match (map module-name (scheme-modules %top-srcdir "guix/import"))
    ((('guix 'import _ ...) ..1)
     #t)))

(test-assert "scheme-modules recurses in symlinks to directories"
  (call-with-temporary-directory
   (lambda (directory)
     (mkdir (string-append directory "/guix"))
     (symlink (string-append %top-srcdir "/guix/import")
              (string-append directory "/guix/import"))

     ;; DIRECTORY/guix/import is a symlink but we want to make sure
     ;; 'scheme-modules' recurses into it.
     (match (map module-name (scheme-modules directory))
       ((('guix 'import _ ...) ..1)
        #t)))))

(test-equal "scheme-modules, non-existent directory"
  '()
  (scheme-modules "/does/not/exist"))

(test-assert "all-modules"
  (match (map module-name
              (all-modules `((,%top-srcdir . "guix/build-system"))))
    ((('guix 'build-system names) ..1)
     names)))

(test-assert "fold-module-public-variables"
  (let ((modules (all-modules `((,%top-srcdir . "guix/build-system")))))
    (match (fold-module-public-variables (lambda (obj result)
                                           (if (build-system? obj)
                                               (cons obj result)
                                               result))
                                         '()
                                         modules)
      (((? build-system? bs) ..1)
       bs))))

(test-end "discovery")
>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Ricardo Wurmus &lt;rekado@elephly.net&gt;</td><td class='right'>2019-10-06 22:02:20 +0200</td></tr>
<tr><th>committer</th><td>Ricardo Wurmus &lt;rekado@elephly.net&gt;</td><td class='right'>2019-10-06 22:02:20 +0200</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/guix/commit/?id=e08902d3cbb307e1523485becbbdaf9aed56ac4a'>e08902d3cbb307e1523485becbbdaf9aed56ac4a</a> (<a href='/guix/patch/?id=e08902d3cbb307e1523485becbbdaf9aed56ac4a'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/guix/tree/?id=e08902d3cbb307e1523485becbbdaf9aed56ac4a'>ca79454c4146f37c0e0f4d354d434816928812ed</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/guix/commit/?id=1714edc3d4e8d6da1b0cdef300ae882d0885f182'>1714edc3d4e8d6da1b0cdef300ae882d0885f182</a> (<a href='/guix/diff/?id=e08902d3cbb307e1523485becbbdaf9aed56ac4a&amp;id2=1714edc3d4e8d6da1b0cdef300ae882d0885f182'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/guix/commit/?id=f58702465d0b2daab1775d29439b73b4486a108a'>f58702465d0b2daab1775d29439b73b4486a108a</a> (<a href='/guix/diff/?id=e08902d3cbb307e1523485becbbdaf9aed56ac4a&amp;id2=f58702465d0b2daab1775d29439b73b4486a108a'>diff</a>)</td></tr><tr><th>download</th><td colspan='2' class='oid'><a href='/guix/snapshot/guix-e08902d3cbb307e1523485becbbdaf9aed56ac4a.tar.gz'>guix-e08902d3cbb307e1523485becbbdaf9aed56ac4a.tar.gz</a><br/><a href='/guix/snapshot/guix-e08902d3cbb307e1523485becbbdaf9aed56ac4a.zip'>guix-e08902d3cbb307e1523485becbbdaf9aed56ac4a.zip</a><br/></td></tr></table>
<div class='commit-subject'>Merge branch 'master' into core-updates</div><div class='commit-msg'></div><div class='diffstat-header'><a href='/guix/diff/?id=e08902d3cbb307e1523485becbbdaf9aed56ac4a'>Diffstat</a></div><table summary='diffstat' class='diffstat'>