Mirror of GNU Guix
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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2016, 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 (gnu tests base)
#:use-module (gnu tests)
#:use-module (gnu system)
#:use-module (gnu system shadow)
#:use-module (gnu system nss)
#:use-module (gnu system vm)
#:use-module (gnu services)
#:use-module (gnu services base)
#:use-module (gnu services dbus)
#:use-module (gnu services avahi)
#:use-module (gnu services mcron)
#:use-module (gnu services shepherd)
#:use-module (gnu services networking)
#:use-module (gnu packages imagemagick)
#:use-module (gnu packages ocr)
#:use-module (guix gexp)
#:use-module (guix store)
#:use-module (guix monads)
#:use-module (guix packages)
#:use-module (srfi srfi-1)
#:export (run-basic-test
%test-basic-os
%test-mcron
%test-nss-mdns))
(define %simple-os
(simple-operating-system))
(define* (run-basic-test os command #:optional (name "basic")
#:key initialization)
"Return a derivation called NAME that tests basic features of the OS started
using COMMAND, a gexp that evaluates to a list of strings. Compare some
properties of running system to what's declared in OS, an <operating-system>.
When INITIALIZATION is true, it must be a one-argument procedure that is
passed a gexp denoting the marionette, and it must return gexp that is
inserted before the first test. This is used to introduce an extra
initialization step, such as entering a LUKS passphrase."
(define special-files
(service-value
(fold-services (operating-system-services os)
#:target-type special-files-service-type)))
(define test
(with-imported-modules '((gnu build marionette)
(guix build syscalls))
#~(begin
(use-modules (gnu build marionette)
(guix build syscalls)
(srfi srfi-1)
(srfi srfi-26)
(srfi srfi-64)
(ice-9 match))
(define marionette
(make-marionette #$command))
(mkdir #$output)
(chdir #$output)
(test-begin "basic")
#$(and initialization
(initialization #~marionette))
(test-assert "uname"
(match (marionette-eval '(uname) marionette)
(#("Linux" host-name version _ architecture)
(and (string=? host-name
#$(operating-system-host-name os))
(string-prefix? #$(package-version
(operating-system-kernel os))
version)
(string-prefix? architecture %host-type)))))
(test-assert "shell and user commands"
;; Is everything in $PATH?
(zero? (marionette-eval '(system "
. /etc/profile
set -e -x
guix --version
ls --version
grep --version
info --version")
marionette)))
(test-equal "special files"
'#$special-files
(marionette-eval
'(begin
(use-modules (ice-9 match))
(map (match-lambda
((file target)
(list file (readlink file))))
'#$special-files))
marionette))
(test-assert "accounts"
(let ((users (marionette-eval '(begin
(use-modules (ice-9 match))
(let loop ((result '()))
(match (getpw)
(#f (reverse result))
(x (loop (cons x result))))))
marionette)))
(lset= string=?
(map passwd:name users)
(list
#$@(map user-account-name
(operating-system-user-accounts os))))))
(test-assert "shepherd services"
(let ((services (marionette-eval
'(begin
(use-modules (gnu services herd))
(map (compose car live-service-provision)
(current-services)))
marionette)))
(lset= eq?
(pk 'services services)
'(root #$@(operating-system-shepherd-service-names os)))))
(test-assert "homes"
(let ((homes
'#$(map user-account-home-directory
(filter user-account-create-home-directory?
(operating-system-user-accounts os)))))
(marionette-eval
`(begin
(use-modules (gnu services herd) (srfi srfi-1))
;; Home directories are supposed to exist once 'user-homes'
;; has been started.
(start-service 'user-homes)
(every (lambda (home)
(and (file-exists? home)
(file-is-directory? home)))
',homes))
marionette)))
(test-assert "skeletons in home directories"
(let ((users+homes
'#$(filter-map (lambda (account)
(and (user-account-create-home-directory?
account)
(not (user-account-system? account))
(list (user-account-name account)
(user-account-home-directory
account))))
(operating-system-user-accounts os))))
(marionette-eval
`(begin
(use-modules (srfi srfi-1) (ice-9 ftw)
(ice-9 match))
(every (match-lambda
((user home)
;; Make sure HOME has all the skeletons...
(and (null? (lset-difference string=?
(scandir "/etc/skel/")
(scandir home)))
;; ... and that everything is user-owned.
(let* ((pw (getpwnam user))
(uid (passwd:uid pw))
(gid (passwd:gid pw))
(st (lstat home)))
(define (user-owned? file)
(= uid (stat:uid (lstat file))))
(and (= uid (stat:uid st))
(eq? 'directory (stat:type st))
(every user-owned?
(find-files home
#:directories? #t)))))))
',users+homes))
marionette)))
(test-equal "login on tty1"
"root\n"
(begin
(marionette-control "sendkey ctrl-alt-f1" marionette)
;; Wait for the 'term-tty1' service to be running (using
;; 'start-service' is the simplest and most reliable way to do
;; that.)
(marionette-eval
'(begin
(use-modules (gnu services herd))
(start-service 'term-tty1))
marionette)
;; Now we can type.
(marionette-type "root\n\nid -un > logged-in\n" marionette)
;; It can take a while before the shell commands are executed.
(marionette-eval '(use-modules (rnrs io ports)) marionette)
(marionette-eval
'(let loop ((i 0))
(catch 'system-error
(lambda ()
(call-with-input-file "/root/logged-in"
get-string-all))
(lambda args
(if (and (< i 15) (= ENOENT (system-error-errno args)))
(begin
(sleep 1)
(loop (+ i 1)))
(apply throw args)))))
marionette)))
;; There should be one utmpx entry for the user logged in on tty1.
(test-equal "utmpx entry"
'(("root" "tty1" #f))
(marionette-eval
'(begin
(use-modules (guix build syscalls)
(srfi srfi-1))
(filter-map (lambda (entry)
(and (equal? (login-type USER_PROCESS)
(utmpx-login-type entry))
(list (utmpx-user entry) (utmpx-line entry)
(utmpx-host entry))))
(utmpx-entries)))
marionette))
;; Likewise for /var/log/wtmp (used by 'last').
(test-assert "wtmp entry"
(match (marionette-eval
'(begin
(use-modules (guix build syscalls)
(srfi srfi-1))
(define (entry->list entry)
(list (utmpx-user entry) (utmpx-line entry)
(utmpx-host entry) (utmpx-login-type entry)))
(call-with-input-file "/var/log/wtmp"
(lambda (port)
(let loop ((result '()))
(if (eof-object? (peek-char port))
(map entry->list (reverse result))
(loop (cons (read-utmpx port) result)))))))
marionette)
(((users lines hosts types) ..1)
(every (lambda (type)
(eqv? type (login-type LOGIN_PROCESS)))
types))))
(test-assert "host name resolution"
(match (marionette-eval
'(begin
;; Wait for nscd or our requests go through it.
(use-modules (gnu services herd))
(start-service 'nscd)
(list (getaddrinfo "localhost")
(getaddrinfo #$(operating-system-host-name os))))
marionette)
((((? vector?) ..1) ((? vector?) ..1))
#t)
(x
(pk 'failure x #f))))
(test-equal "host not found"
#f
(marionette-eval
'(false-if-exception (getaddrinfo "does-not-exist"))
marionette))
(test-equal "locale"
"en_US.utf8"
(marionette-eval '(let ((before (setlocale LC_ALL "en_US.utf8")))
(setlocale LC_ALL before))
marionette))
(test-assert "/run/current-system is a GC root"
(marionette-eval '(begin
;; Make sure the (guix …) modules are found.
(eval-when (expand load eval)
(set! %load-path
(cons
(string-append
"/run/current-system/profile/share/guile/site/"
(effective-version))
%load-path))
(set! %load-compiled-path
(cons
(string-append
"/run/current-system/profile/share/guile/site/"
(effective-version))
%load-compiled-path)))
(use-modules (srfi srfi-34) (guix store))
(let ((system (readlink "/run/current-system")))
(guard (c ((nix-protocol-error? c)
(file-exists? system)))
(with-store store
(delete-paths store (list system))
#f))))
marionette))
;; This symlink is currently unused, but better have it point to the
;; right place. See
;; <https://lists.gnu.org/archive/html/guix-devel/2016-08/msg01641.html>.
(test-equal "/var/guix/gcroots/profiles is a valid symlink"
"/var/guix/profiles"
(marionette-eval '(readlink "/var/guix/gcroots/profiles")
marionette))
(test-assert "screendump"
(begin
(marionette-control (string-append "screendump " #$output
"/tty1.ppm")
marionette)
(file-exists? "tty1.ppm")))
(test-assert "screen text"
(let ((text (marionette-screen-text marionette
#:ocrad
#$(file-append ocrad
"/bin/ocrad"))))
;; Check whether the welcome message and shell prompt are
;; displayed. Note: OCR confuses "y" and "V" for instance, so
;; we cannot reliably match the whole text.
(and (string-contains text "This is the GNU")
(string-contains text
(string-append
"root@"
#$(operating-system-host-name os))))))
(test-end)
(exit (= (test-runner-fail-count (test-runner-current)) 0)))))
(gexp->derivation name test))
(define %test-basic-os
(system-test
(name "basic")
(description
"Instrument %SIMPLE-OS, run it in a VM, and run a series of basic
functionality tests.")
(value
(mlet* %store-monad ((os -> (marionette-operating-system
%simple-os
#:imported-modules '((gnu services herd)
(guix combinators))))
(run (system-qemu-image/shared-store-script
os #:graphic? #f)))
;; XXX: Add call to 'virtualized-operating-system' to get the exact same
;; set of services as the OS produced by
;; 'system-qemu-image/shared-store-script'.
(run-basic-test (virtualized-operating-system os '())
#~(list #$run))))))
;;;
;;; Mcron.
;;;
(define %mcron-os
;; System with an mcron service, with one mcron job for "root" and one mcron
;; job for an unprivileged user (note: #:user is an 'mcron2' thing.)
(let ((job1 #~(job next-second-from
(lambda ()
(call-with-output-file "witness"
(lambda (port)
(display (list (getuid) (getgid)) port))))))
(job2 #~(job next-second-from
(lambda ()
(call-with-output-file "witness"
(lambda (port)
(display (list (getuid) (getgid)) port))))
#:user "alice"))
(job3 #~(job next-second-from ;to test $PATH
"touch witness-touch")))
(simple-operating-system
(mcron-service (list job1 job2 job3)))))
(define (run-mcron-test name)
(mlet* %store-monad ((os -> (marionette-operating-system
%mcron-os
#:imported-modules '((gnu services herd)
(guix combinators))))
(command (system-qemu-image/shared-store-script
os #:graphic? #f)))
(define test
(with-imported-modules '((gnu build marionette))
#~(begin
(use-modules (gnu build marionette)
(srfi srfi-64)
(ice-9 match))
(define marionette
(make-marionette (list #$command)))
(define (wait-for-file file)
;; Wait until FILE exists in the guest; 'read' its content and
;; return it.
(marionette-eval
`(let loop ((i 10))
(cond ((file-exists? ,file)
(call-with-input-file ,file read))
((> i 0)
(sleep 1)
(loop (- i 1)))
(else
(error "file didn't show up" ,file))))
marionette))
(mkdir #$output)
(chdir #$output)
(test-begin "mcron")
(test-eq "service running"
'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"))
;; 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")
((1000 gid)
(>= gid 100))))
;; Last, the job that uses a command; allows us to test whether
;; $PATH is sane. (Note that 'marionette-eval' stringifies objects
;; that don't have a read syntax, hence the string.)
(test-equal "root's job with command"
"#<eof>"
(wait-for-file "/root/witness-touch"))
(test-end)
(exit (= (test-runner-fail-count (test-runner-current)) 0)))))
(gexp->derivation name test)))
(define %test-mcron
(system-test
(name "mcron")
(description "Make sure the mcron service works as advertised.")
(value (run-mcron-test name))))
;;;
;;; Avahi and NSS-mDNS.
;;;
(define %avahi-os
(operating-system
(inherit %simple-os)
(name-service-switch %mdns-host-lookup-nss)
(services (cons* (avahi-service #:debug? #t)
(dbus-service)
(dhcp-client-service) ;needed for multicast
;; Enable heavyweight debugging output.
(modify-services (operating-system-user-services
%simple-os)
(nscd-service-type config
=> (nscd-configuration
(inherit config)
(debug-level 3)
(log-file "/dev/console")))
(syslog-service-type config
=>
(syslog-configuration
(inherit config)
(config-file
(plain-file
"syslog.conf"
"*.* /dev/console\n")))))))))
(define (run-nss-mdns-test)
;; Test resolution of '.local' names via libc. Start the marionette service
;; *after* nscd. Failing to do that, libc will try to connect to nscd,
;; fail, then never try again (see '__nss_not_use_nscd_hosts' in libc),
;; leading to '.local' resolution failures.
(mlet* %store-monad ((os -> (marionette-operating-system
%avahi-os
#:requirements '(nscd)
#:imported-modules '((gnu services herd)
(guix combinators))))
(run (system-qemu-image/shared-store-script
os #:graphic? #f)))
(define mdns-host-name
(string-append (operating-system-host-name os)
".local"))
(define test
(with-imported-modules '((gnu build marionette))
#~(begin
(use-modules (gnu build marionette)
(srfi srfi-1)
(srfi srfi-64)
(ice-9 match))
(define marionette
(make-marionette (list #$run)))
(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))))