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authorLudovic Courtès <ludo@gnu.org>2013-04-08 22:54:08 +0200
committerLudovic Courtès <ludo@gnu.org>2013-04-08 23:21:38 +0200
commit53c63ee93790e4e4054bf6547199d3490b78bf47 (patch)
tree7066d23fbf0d7e474269bae078c9d4f8196a136e /tests/nar.scm
parent52e5910cdc0275cbc668682346172be2673d150d (diff)
nar: Implement restoration from Nar.
* guix/nar.scm (&nar-error, &nar-read-error): New condition types. (dump): New procedure. (write-contents)[dump]: Remove. Use the one above instead. (read-contents, write-file, restore-file): New procedures. (%archive-version-1): New variable.
Diffstat (limited to 'tests/nar.scm')
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1 files changed, 95 insertions, 0 deletions
diff --git a/tests/nar.scm b/tests/nar.scm
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+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2012, 2013 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-nar)
+ #:use-module (guix nar)
+ #:use-module (rnrs bytevectors)
+ #:use-module (rnrs io ports)
+ #:use-module (srfi srfi-26)
+ #:use-module (srfi srfi-64)
+ #:use-module (ice-9 ftw))
+
+;; Test the (guix nar) module.
+
+(define (rm-rf dir)
+ (file-system-fold (const #t) ; enter?
+ (lambda (file stat result) ; leaf
+ (delete-file file))
+ (const #t) ; down
+ (lambda (dir stat result) ; up
+ (rmdir dir))
+ (const #t) ; skip
+ (const #t) ; error
+ #t
+ dir
+ lstat))
+
+
+(test-begin "nar")
+
+(test-assert "write-file + restore-file"
+ (let* ((input (string-append (dirname (search-path %load-path "guix.scm"))
+ "/guix"))
+ (output (string-append (dirname input)
+ "/test-nar-"
+ (number->string (getpid))))
+ (nar (string-append output ".nar")))
+ (dynamic-wind
+ (lambda () #t)
+ (lambda ()
+ (call-with-output-file nar
+ (cut write-file input <>))
+ (call-with-input-file nar
+ (cut restore-file <> output))
+ (let* ((strip (cute string-drop <> (string-length input)))
+ (sibling (compose (cut string-append output <>) strip))
+ (file=? (lambda (a b)
+ (and (eq? (stat:type (lstat a)) (stat:type (lstat b)))
+ (case (stat:type (lstat a))
+ ((regular)
+ (equal?
+ (call-with-input-file a get-bytevector-all)
+ (call-with-input-file b get-bytevector-all)))
+ ((symlink)
+ (string=? (readlink a) (readlink b)))
+ (else
+ (error "what?" (lstat a))))))))
+ (file-system-fold (const #t)
+ (lambda (name stat result) ; leaf
+ (and result
+ (file=? name (sibling name))))
+ (lambda (name stat result) ; down
+ result)
+ (lambda (name stat result) ; up
+ result)
+ (const #f) ; skip
+ (lambda (name stat errno result)
+ (pk 'error name stat errno)
+ #f)
+ (> (stat:nlink (stat output)) 2)
+ input
+ lstat)))
+ (lambda ()
+ (false-if-exception (delete-file nar))
+ (false-if-exception (rm-rf output))
+ ))))
+
+(test-end "nar")
+
+
+(exit (= (test-runner-fail-count (test-runner-current)) 0))