697 lines
27 KiB
Scheme
697 lines
27 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2016, 2017 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 (gnu tests base)
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#:use-module (gnu tests)
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#:use-module (gnu system)
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#:use-module (gnu system shadow)
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#:use-module (gnu system nss)
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#:use-module (gnu system vm)
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#:use-module (gnu services)
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#:use-module (gnu services base)
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#:use-module (gnu services dbus)
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#:use-module (gnu services avahi)
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#:use-module (gnu services mcron)
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#:use-module (gnu services shepherd)
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#:use-module (gnu services networking)
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#:use-module (gnu packages imagemagick)
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#:use-module (gnu packages ocr)
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#:use-module (gnu packages package-management)
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#:use-module (gnu packages linux)
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#:use-module (gnu packages tmux)
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#:use-module (guix gexp)
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#:use-module (guix store)
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#:use-module (guix packages)
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#:use-module (srfi srfi-1)
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#:export (run-basic-test
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%test-basic-os
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%test-halt
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%test-mcron
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%test-nss-mdns))
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(define %simple-os
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(simple-operating-system))
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(define* (run-basic-test os command #:optional (name "basic")
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#:key initialization)
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"Return a derivation called NAME that tests basic features of the OS started
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using COMMAND, a gexp that evaluates to a list of strings. Compare some
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properties of running system to what's declared in OS, an <operating-system>.
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When INITIALIZATION is true, it must be a one-argument procedure that is
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passed a gexp denoting the marionette, and it must return gexp that is
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inserted before the first test. This is used to introduce an extra
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initialization step, such as entering a LUKS passphrase."
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(define special-files
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(service-value
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(fold-services (operating-system-services os)
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#:target-type special-files-service-type)))
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(define test
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(with-imported-modules '((gnu build marionette)
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(guix build syscalls))
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#~(begin
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(use-modules (gnu build marionette)
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(guix build syscalls)
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(srfi srfi-1)
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(srfi srfi-26)
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(srfi srfi-64)
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(ice-9 match))
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(define marionette
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(make-marionette #$command))
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(mkdir #$output)
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(chdir #$output)
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(test-begin "basic")
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#$(and initialization
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(initialization #~marionette))
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(test-assert "uname"
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(match (marionette-eval '(uname) marionette)
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(#("Linux" host-name version _ architecture)
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(and (string=? host-name
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#$(operating-system-host-name os))
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(string-prefix? #$(package-version
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(operating-system-kernel os))
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version)
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(string-prefix? architecture %host-type)))))
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(test-assert "shell and user commands"
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;; Is everything in $PATH?
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(zero? (marionette-eval '(system "
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. /etc/profile
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set -e -x
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guix --version
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ls --version
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grep --version
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info --version")
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marionette)))
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(test-equal "special files"
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'#$special-files
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(marionette-eval
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'(begin
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(use-modules (ice-9 match))
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(map (match-lambda
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((file target)
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(list file (readlink file))))
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'#$special-files))
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marionette))
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(test-assert "accounts"
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(let ((users (marionette-eval '(begin
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(use-modules (ice-9 match))
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(let loop ((result '()))
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(match (getpw)
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(#f (reverse result))
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(x (loop (cons x result))))))
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marionette)))
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(lset= string=?
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(map passwd:name users)
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(list
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#$@(map user-account-name
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(operating-system-user-accounts os))))))
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(test-assert "shepherd services"
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(let ((services (marionette-eval
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'(begin
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(use-modules (gnu services herd))
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(map (compose car live-service-provision)
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(current-services)))
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marionette)))
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(lset= eq?
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(pk 'services services)
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'(root #$@(operating-system-shepherd-service-names os)))))
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(test-assert "homes"
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(let ((homes
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'#$(map user-account-home-directory
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(filter user-account-create-home-directory?
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(operating-system-user-accounts os)))))
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(marionette-eval
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`(begin
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(use-modules (gnu services herd) (srfi srfi-1))
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;; Home directories are supposed to exist once 'user-homes'
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;; has been started.
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(start-service 'user-homes)
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(every (lambda (home)
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(and (file-exists? home)
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(file-is-directory? home)))
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',homes))
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marionette)))
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(test-assert "skeletons in home directories"
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(let ((users+homes
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'#$(filter-map (lambda (account)
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(and (user-account-create-home-directory?
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account)
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(not (user-account-system? account))
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(list (user-account-name account)
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(user-account-home-directory
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account))))
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(operating-system-user-accounts os))))
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(marionette-eval
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`(begin
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(use-modules (srfi srfi-1) (ice-9 ftw)
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(ice-9 match))
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(every (match-lambda
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((user home)
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;; Make sure HOME has all the skeletons...
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(and (null? (lset-difference string=?
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(scandir "/etc/skel/")
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(scandir home)))
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;; ... and that everything is user-owned.
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(let* ((pw (getpwnam user))
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(uid (passwd:uid pw))
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(gid (passwd:gid pw))
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(st (lstat home)))
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(define (user-owned? file)
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(= uid (stat:uid (lstat file))))
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(and (= uid (stat:uid st))
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(eq? 'directory (stat:type st))
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(every user-owned?
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(find-files home
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#:directories? #t)))))))
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',users+homes))
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marionette)))
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(test-equal "permissions on /root"
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#o700
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(let ((root-home #$(any (lambda (account)
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(and (zero? (user-account-uid account))
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(user-account-home-directory
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account)))
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(operating-system-user-accounts os))))
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(stat:perms (marionette-eval `(stat ,root-home) marionette))))
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(test-equal "no extra home directories"
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'()
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;; Make sure the home directories that are not supposed to be
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;; created are indeed not created.
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(let ((nonexistent
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'#$(filter-map (lambda (user)
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(and (not
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(user-account-create-home-directory?
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user))
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(user-account-home-directory user)))
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(operating-system-user-accounts os))))
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(marionette-eval
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`(begin
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(use-modules (srfi srfi-1))
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;; Note: Do not flag "/var/empty".
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(filter file-exists?
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',(remove (cut string-prefix? "/var/" <>)
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nonexistent)))
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marionette)))
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(test-equal "login on tty1"
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"root\n"
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(begin
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(marionette-control "sendkey ctrl-alt-f1" marionette)
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;; Wait for the 'term-tty1' service to be running (using
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;; 'start-service' is the simplest and most reliable way to do
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;; that.)
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(marionette-eval
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'(begin
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(use-modules (gnu services herd))
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(start-service 'term-tty1))
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marionette)
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;; Now we can type.
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(marionette-type "root\n\nid -un > logged-in\n" marionette)
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;; It can take a while before the shell commands are executed.
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(marionette-eval '(use-modules (rnrs io ports)) marionette)
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(wait-for-file "/root/logged-in" marionette
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#:read 'get-string-all)))
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;; There should be one utmpx entry for the user logged in on tty1.
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(test-equal "utmpx entry"
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'(("root" "tty1" #f))
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(marionette-eval
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'(begin
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(use-modules (guix build syscalls)
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(srfi srfi-1))
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(filter-map (lambda (entry)
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(and (equal? (login-type USER_PROCESS)
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(utmpx-login-type entry))
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(list (utmpx-user entry) (utmpx-line entry)
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(utmpx-host entry))))
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(utmpx-entries)))
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marionette))
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;; Likewise for /var/log/wtmp (used by 'last').
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(test-assert "wtmp entry"
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(match (marionette-eval
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'(begin
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(use-modules (guix build syscalls)
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(srfi srfi-1))
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(define (entry->list entry)
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(list (utmpx-user entry) (utmpx-line entry)
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(utmpx-host entry) (utmpx-login-type entry)))
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(call-with-input-file "/var/log/wtmp"
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(lambda (port)
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(let loop ((result '()))
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(if (eof-object? (peek-char port))
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(map entry->list (reverse result))
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(loop (cons (read-utmpx port) result)))))))
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marionette)
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(((users lines hosts types) ..1)
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(every (lambda (type)
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(eqv? type (login-type LOGIN_PROCESS)))
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types))))
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(test-assert "host name resolution"
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(match (marionette-eval
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'(begin
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;; Wait for nscd or our requests go through it.
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(use-modules (gnu services herd))
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(start-service 'nscd)
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(list (getaddrinfo "localhost")
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(getaddrinfo #$(operating-system-host-name os))))
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marionette)
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((((? vector?) ..1) ((? vector?) ..1))
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#t)
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(x
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(pk 'failure x #f))))
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(test-equal "host not found"
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#f
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(marionette-eval
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'(false-if-exception (getaddrinfo "does-not-exist"))
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marionette))
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(test-equal "locale"
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"en_US.utf8"
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(marionette-eval '(let ((before (setlocale LC_ALL "en_US.utf8")))
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(setlocale LC_ALL before))
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marionette))
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(test-eq "/run/current-system is a GC root"
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'success!
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(marionette-eval '(begin
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;; Make sure the (guix …) modules are found.
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(add-to-load-path
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#+(file-append guix "/share/guile/site/2.2"))
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(use-modules (srfi srfi-34) (guix store))
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(let ((system (readlink "/run/current-system")))
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(guard (c ((nix-protocol-error? c)
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(and (file-exists? system)
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'success!)))
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(with-store store
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(delete-paths store (list system))
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#f))))
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marionette))
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;; This symlink is currently unused, but better have it point to the
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;; right place. See
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;; <https://lists.gnu.org/archive/html/guix-devel/2016-08/msg01641.html>.
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(test-equal "/var/guix/gcroots/profiles is a valid symlink"
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"/var/guix/profiles"
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(marionette-eval '(readlink "/var/guix/gcroots/profiles")
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marionette))
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(test-assert "screendump"
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(begin
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(marionette-control (string-append "screendump " #$output
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"/tty1.ppm")
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marionette)
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(file-exists? "tty1.ppm")))
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(test-assert "screen text"
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(let ((text (marionette-screen-text marionette
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#:ocrad
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#$(file-append ocrad
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"/bin/ocrad"))))
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;; Check whether the welcome message and shell prompt are
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;; displayed. Note: OCR confuses "y" and "V" for instance, so
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;; we cannot reliably match the whole text.
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(and (string-contains text "This is the GNU")
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(string-contains text
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(string-append
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"root@"
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#$(operating-system-host-name os))))))
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(test-end)
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(exit (= (test-runner-fail-count (test-runner-current)) 0)))))
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(gexp->derivation name test))
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(define %test-basic-os
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(system-test
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(name "basic")
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(description
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"Instrument %SIMPLE-OS, run it in a VM, and run a series of basic
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functionality tests.")
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(value
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(let* ((os (marionette-operating-system
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%simple-os
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#:imported-modules '((gnu services herd)
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(guix combinators))))
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(vm (virtual-machine os)))
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;; XXX: Add call to 'virtualized-operating-system' to get the exact same
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;; set of services as the OS produced by
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;; 'system-qemu-image/shared-store-script'.
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(run-basic-test (virtualized-operating-system os '())
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#~(list #$vm))))))
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;;;
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;;; Halt.
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;;;
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(define (run-halt-test vm)
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;; As reported in <http://bugs.gnu.org/26931>, running tmux would previously
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;; lead the 'stop' method of 'user-processes' to an infinite loop, with the
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;; tmux server process as a zombie that remains in the list of processes.
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;; This test reproduces this scenario.
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(define test
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(with-imported-modules '((gnu build marionette))
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#~(begin
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(use-modules (gnu build marionette))
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(define marionette
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(make-marionette '(#$vm)))
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(define ocrad
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#$(file-append ocrad "/bin/ocrad"))
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;; Wait for tty1 and log in.
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(marionette-eval '(begin
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(use-modules (gnu services herd))
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(start-service 'term-tty1))
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marionette)
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(marionette-type "root\n" marionette)
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(wait-for-screen-text marionette
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(lambda (text)
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(string-contains text "root@komputilo"))
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#:ocrad ocrad)
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;; Start tmux and wait for it to be ready.
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(marionette-type "tmux new-session 'echo 1 > /ready; bash'\n"
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marionette)
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(wait-for-file "/ready" marionette)
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;; Make sure to stop the test after a while.
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(sigaction SIGALRM (lambda _
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(format (current-error-port)
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"FAIL: Time is up, but VM still running.\n")
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(primitive-exit 1)))
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(alarm 10)
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;; Get debugging info.
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(marionette-eval '(current-output-port
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(open-file "/dev/console" "w0"))
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marionette)
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(marionette-eval '(system* #$(file-append procps "/bin/ps")
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"-eo" "pid,ppid,stat,comm")
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marionette)
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;; See if 'halt' actually works.
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(marionette-eval '(system* "/run/current-system/profile/sbin/halt")
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marionette)
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;; If we reach this line, that means the VM was properly stopped in
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;; a timely fashion.
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(alarm 0)
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(call-with-output-file #$output
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(lambda (port)
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(display "success!" port))))))
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(gexp->derivation "halt" test))
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(define %test-halt
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(system-test
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(name "halt")
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(description
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"Use the 'halt' command and make sure it succeeds and does not get stuck
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in a loop. See <http://bugs.gnu.org/26931>.")
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(value
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(let ((os (marionette-operating-system
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(operating-system
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(inherit %simple-os)
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(packages (cons tmux %base-packages)))
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#:imported-modules '((gnu services herd)
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(guix combinators)))))
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(run-halt-test (virtual-machine os))))))
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;;;
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;;; Mcron.
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;;;
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(define %mcron-os
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;; System with an mcron service, with one mcron job for "root" and one mcron
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;; job for an unprivileged user (note: #:user is an 'mcron2' thing.)
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(let ((job1 #~(job next-second-from
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(lambda ()
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(call-with-output-file "witness"
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(lambda (port)
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(display (list (getuid) (getgid)) port))))))
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(job2 #~(job next-second-from
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(lambda ()
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(call-with-output-file "witness"
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(lambda (port)
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(display (list (getuid) (getgid)) port))))
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#:user "alice"))
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(job3 #~(job next-second-from ;to test $PATH
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"touch witness-touch")))
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(simple-operating-system
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(mcron-service (list job1 job2 job3)))))
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(define (run-mcron-test name)
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(define os
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(marionette-operating-system
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%mcron-os
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#:imported-modules '((gnu services herd)
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(guix combinators))))
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(define test
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(with-imported-modules '((gnu build marionette))
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#~(begin
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(use-modules (gnu build marionette)
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(srfi srfi-64)
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(ice-9 match))
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(define marionette
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(make-marionette (list #$(virtual-machine os))))
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(mkdir #$output)
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(chdir #$output)
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(test-begin "mcron")
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(test-eq "service running"
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'running!
|
||
(marionette-eval
|
||
'(begin
|
||
(use-modules (gnu services herd))
|
||
(start-service 'mcron)
|
||
'running!)
|
||
marionette))
|
||
|
||
;; Make sure root's mcron job runs, has its cwd set to "/root", and
|
||
;; runs with the right UID/GID.
|
||
(test-equal "root's job"
|
||
'(0 0)
|
||
(wait-for-file "/root/witness" marionette))
|
||
|
||
;; Likewise for Alice's job. We cannot know what its GID is since
|
||
;; it's chosen by 'groupadd', but it's strictly positive.
|
||
(test-assert "alice's job"
|
||
(match (wait-for-file "/home/alice/witness" marionette)
|
||
((1000 gid)
|
||
(>= gid 100))))
|
||
|
||
;; Last, the job that uses a command; allows us to test whether
|
||
;; $PATH is sane.
|
||
(test-equal "root's job with command"
|
||
""
|
||
(wait-for-file "/root/witness-touch" marionette
|
||
#:read '(@ (ice-9 rdelim) read-string)))
|
||
|
||
(test-end)
|
||
(exit (= (test-runner-fail-count (test-runner-current)) 0)))))
|
||
|
||
(gexp->derivation name test))
|
||
|
||
(define %test-mcron
|
||
(system-test
|
||
(name "mcron")
|
||
(description "Make sure the mcron service works as advertised.")
|
||
(value (run-mcron-test name))))
|
||
|
||
|
||
;;;
|
||
;;; Avahi and NSS-mDNS.
|
||
;;;
|
||
|
||
(define %avahi-os
|
||
(operating-system
|
||
(inherit %simple-os)
|
||
(name-service-switch %mdns-host-lookup-nss)
|
||
(services (cons* (avahi-service #:debug? #t)
|
||
(dbus-service)
|
||
(dhcp-client-service) ;needed for multicast
|
||
|
||
;; Enable heavyweight debugging output.
|
||
(modify-services (operating-system-user-services
|
||
%simple-os)
|
||
(nscd-service-type config
|
||
=> (nscd-configuration
|
||
(inherit config)
|
||
(debug-level 3)
|
||
(log-file "/dev/console")))
|
||
(syslog-service-type config
|
||
=>
|
||
(syslog-configuration
|
||
(inherit config)
|
||
(config-file
|
||
(plain-file
|
||
"syslog.conf"
|
||
"*.* /dev/console\n")))))))))
|
||
|
||
(define (run-nss-mdns-test)
|
||
;; Test resolution of '.local' names via libc. Start the marionette service
|
||
;; *after* nscd. Failing to do that, libc will try to connect to nscd,
|
||
;; fail, then never try again (see '__nss_not_use_nscd_hosts' in libc),
|
||
;; leading to '.local' resolution failures.
|
||
(define os
|
||
(marionette-operating-system
|
||
%avahi-os
|
||
#:requirements '(nscd)
|
||
#:imported-modules '((gnu services herd)
|
||
(guix combinators))))
|
||
|
||
(define mdns-host-name
|
||
(string-append (operating-system-host-name os)
|
||
".local"))
|
||
|
||
(define test
|
||
(with-imported-modules '((gnu build marionette))
|
||
#~(begin
|
||
(use-modules (gnu build marionette)
|
||
(srfi srfi-1)
|
||
(srfi srfi-64)
|
||
(ice-9 match))
|
||
|
||
(define marionette
|
||
(make-marionette (list #$(virtual-machine os))))
|
||
|
||
(mkdir #$output)
|
||
(chdir #$output)
|
||
|
||
(test-begin "avahi")
|
||
|
||
(test-assert "wait for services"
|
||
(marionette-eval
|
||
'(begin
|
||
(use-modules (gnu services herd))
|
||
|
||
(start-service 'nscd)
|
||
|
||
;; XXX: Work around a race condition in nscd: nscd creates its
|
||
;; PID file before it is listening on its socket.
|
||
(let ((sock (socket PF_UNIX SOCK_STREAM 0)))
|
||
(let try ()
|
||
(catch 'system-error
|
||
(lambda ()
|
||
(connect sock AF_UNIX "/var/run/nscd/socket")
|
||
(close-port sock)
|
||
(format #t "nscd is ready~%"))
|
||
(lambda args
|
||
(format #t "waiting for nscd...~%")
|
||
(usleep 500000)
|
||
(try)))))
|
||
|
||
;; Wait for the other useful things.
|
||
(start-service 'avahi-daemon)
|
||
(start-service 'networking)
|
||
|
||
#t)
|
||
marionette))
|
||
|
||
(test-equal "avahi-resolve-host-name"
|
||
0
|
||
(marionette-eval
|
||
'(system*
|
||
"/run/current-system/profile/bin/avahi-resolve-host-name"
|
||
"-v" #$mdns-host-name)
|
||
marionette))
|
||
|
||
(test-equal "avahi-browse"
|
||
0
|
||
(marionette-eval
|
||
'(system* "avahi-browse" "-avt")
|
||
marionette))
|
||
|
||
(test-assert "getaddrinfo .local"
|
||
;; Wait for the 'avahi-daemon' service and perform a resolution.
|
||
(match (marionette-eval
|
||
'(getaddrinfo #$mdns-host-name)
|
||
marionette)
|
||
(((? vector? addrinfos) ..1)
|
||
(pk 'getaddrinfo addrinfos)
|
||
(and (any (lambda (ai)
|
||
(= AF_INET (addrinfo:fam ai)))
|
||
addrinfos)
|
||
(any (lambda (ai)
|
||
(= AF_INET6 (addrinfo:fam ai)))
|
||
addrinfos)))))
|
||
|
||
(test-assert "gethostbyname .local"
|
||
(match (pk 'gethostbyname
|
||
(marionette-eval '(gethostbyname #$mdns-host-name)
|
||
marionette))
|
||
((? vector? result)
|
||
(and (string=? (hostent:name result) #$mdns-host-name)
|
||
(= (hostent:addrtype result) AF_INET)))))
|
||
|
||
|
||
(test-end)
|
||
(exit (= (test-runner-fail-count (test-runner-current)) 0)))))
|
||
|
||
(gexp->derivation "nss-mdns" test))
|
||
|
||
(define %test-nss-mdns
|
||
(system-test
|
||
(name "nss-mdns")
|
||
(description
|
||
"Test Avahi's multicast-DNS implementation, and in particular, test its
|
||
glibc name service switch (NSS) module.")
|
||
(value (run-nss-mdns-test))))
|