71 lines
2.3 KiB
Scheme
71 lines
2.3 KiB
Scheme
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;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2013, 2014 Ludovic Courtès <ludo@gnu.org>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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;;; GNU Guix is free software; you can redistribute it and/or modify it
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;;; under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 3 of the License, or (at
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;;; your option) any later version.
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;;;
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;;; GNU Guix is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
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(define-module (guix tests)
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#:use-module (guix store)
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#:use-module (guix derivations)
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#:use-module (guix packages)
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#:use-module (gnu packages bootstrap)
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#:use-module (srfi srfi-34)
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#:use-module (rnrs bytevectors)
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#:export (open-connection-for-tests
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random-text
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random-bytevector))
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;;; Commentary:
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;;;
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;;; This module provide shared infrastructure for the test suite. For
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;;; internal use only.
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;;;
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;;; Code:
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(define (open-connection-for-tests)
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"Open a connection to the build daemon for tests purposes and return it."
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(guard (c ((nix-error? c)
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(format (current-error-port)
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"warning: build daemon error: ~s~%" c)
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#f))
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(let ((store (open-connection)))
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;; Make sure we build everything by ourselves.
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(set-build-options store #:use-substitutes? #f)
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;; Use the bootstrap Guile when running tests, so we don't end up
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;; building everything in the temporary test store.
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(%guile-for-build (package-derivation store %bootstrap-guile))
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store)))
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(define %seed
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(seed->random-state (logxor (getpid) (car (gettimeofday)))))
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(define (random-text)
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"Return the hexadecimal representation of a random number."
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(number->string (random (expt 2 256) %seed) 16))
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(define (random-bytevector n)
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"Return a random bytevector of N bytes."
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(let ((bv (make-bytevector n)))
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(let loop ((i 0))
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(if (< i n)
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(begin
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(bytevector-u8-set! bv i (random 256 %seed))
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(loop (1+ i)))
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bv))))
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;;; tests.scm ends here
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