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;;; Guix --- Nix package management from Guile.         -*- coding: utf-8 -*-
;;; Copyright (C) 2012 Ludovic Courtès <ludo@gnu.org>
;;;
;;; This file is part of Guix.
;;;
;;; 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.
;;;
;;; 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 Guix.  If not, see <http://www.gnu.org/licenses/>.


(define-module (test-utils)
  #:use-module (guix utils)
  #:use-module (srfi srfi-1)
  #:use-module (srfi srfi-11)
  #:use-module (srfi srfi-26)
  #:use-module (srfi srfi-64)
  #:use-module (rnrs bytevectors)
  #:use-module (rnrs io ports)
  #:use-module (ice-9 rdelim)
  #:use-module (ice-9 popen)
  #:use-module (ice-9 match))

(define %nix-hash
  (or (getenv "NIX_HASH")
      "nix-hash"))

(test-begin "utils")

(test-assert "bytevector->base32-string"
  (fold (lambda (bv expected result)
          (and result
               (string=? (bytevector->base32-string bv)
                         expected)))
        #t

        ;; Examples from RFC 4648.
        (map string->utf8 '("" "f" "fo" "foo" "foob" "fooba" "foobar"))
        '(""
          "my"
          "mzxq"
          "mzxw6"
          "mzxw6yq"
          "mzxw6ytb"
          "mzxw6ytboi")))

(test-assert "base32-string->bytevector"
  (every (lambda (bv)
           (equal? (base32-string->bytevector
                    (bytevector->base32-string bv))
                   bv))
         ;; Examples from RFC 4648.
         (map string->utf8 '("" "f" "fo" "foo" "foob" "fooba" "foobar"))))

(test-assert "nix-base32-string->bytevector"
  (every (lambda (bv)
           (equal? (nix-base32-string->bytevector
                    (bytevector->nix-base32-string bv))
                   bv))
         ;; Examples from RFC 4648.
         (map string->utf8 '("" "f" "fo" "foo" "foob" "fooba" "foobar"))))

(test-assert "bytevector->base16-string->bytevector"
  (every (lambda (bv)
           (equal? (base16-string->bytevector
                    (bytevector->base16-string bv))
                   bv))
         (map string->utf8 '("" "f" "fo" "foo" "foob" "fooba" "foobar"))))

;; The following tests requires `nix-hash' in $PATH.
(test-skip (if (false-if-exception (system* %nix-hash "--version"))
               0
               1))

(test-assert "sha256 & bytevector->nix-base32-string"
  (let ((file (search-path %load-path "tests/test.drv")))
    (equal? (bytevector->nix-base32-string
             (sha256 (call-with-input-file file get-bytevector-all)))
            (let* ((c (format #f "~a --type sha256 --base32 --flat \"~a\""
                              %nix-hash file))
                   (p (open-input-pipe c))
                   (l (read-line p)))
              (close-pipe p)
              l))))

(test-assert "gnu-triplet->nix-system"
  (let ((samples '(("i586-gnu0.3" "i686-gnu")
                   ("x86_64-unknown-linux-gnu" "x86_64-linux")
                   ("i386-pc-linux-gnu" "i686-linux")
                   ("x86_64-unknown-freebsd8.2" "x86_64-freebsd")
                   ("x86_64-apple-darwin10.8.0" "x86_64-darwin")
                   ("i686-pc-cygwin" "i686-cygwin"))))
    (let-values (((gnu nix) (unzip2 samples)))
      (every (lambda (gnu nix)
               (equal? nix (gnu-triplet->nix-system gnu)))
             gnu nix))))

(test-assert "define-record-type*"
  (begin
    (define-record-type* <foo> foo make-foo
      foo?
      (bar foo-bar)
      (baz foo-baz (default (+ 40 2))))
    (and (match (foo (bar 1) (baz 2))
           (($ <foo> 1 2) #t))
         (match (foo (baz 2) (bar 1))
           (($ <foo> 1 2) #t))
         (match (foo (bar 1))
           (($ <foo> 1 42) #t)))))

(test-assert "define-record-type* with letrec* behavior"
  ;; Make sure field initializers can refer to each other as if they were in
  ;; a `letrec*'.
  (begin
    (define-record-type* <bar> bar make-bar
      foo?
      (x bar-x)
      (y bar-y (default (+ 40 2)))
      (z bar-z))
    (and (match (bar (x 1) (y (+ x 1)) (z (* y 2)))
           (($ <bar> 1 2 4) #t))
         (match (bar (x 7) (z (* x 3)))
           (($ <bar> 7 42 21)))
         (match (bar (z 21) (x (/ z 3)))
           (($ <bar> 7 42 21))))))

(test-end)

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

;;; Local Variables:
;;; eval: (put 'test-assert 'scheme-indent-function 1)
;;; End: