;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2017, 2021, 2023 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2021 muradm <mail@muradm.net>
;;;
;;; 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 desktop)
#:use-module (gnu tests)
#:use-module (gnu packages shells)
#:use-module (gnu services)
#:use-module (gnu services base)
#:use-module (gnu services dbus)
#:use-module (gnu services desktop)
#:use-module (gnu system)
#:use-module (gnu system vm)
#:use-module (guix gexp)
#:use-module (srfi srfi-1)
#:export (%test-elogind
%test-minimal-desktop))
;;;
;;; Elogind.
;;;
(define (run-elogind-test vm)
(define test
(with-imported-modules '((gnu build marionette)
(guix build syscalls))
#~(begin
(use-modules (gnu build marionette)
(guix build syscalls)
(srfi srfi-64))
(define marionette
(make-marionette '(#$vm)))
(test-runner-current (system-test-runner #$output))
(test-begin "elogind")
;; Log in as root on tty1, and check what 'loginctl' returns.
(test-equal "login on tty1"
'(("c1" "0" "root" "seat0" "tty1") ;session
("seat0") ;seat
("0" "root" "no")) ;user
(begin
;; Wait for tty1.
(marionette-eval
'(begin
(use-modules (gnu services herd))
(start-service 'term-tty1)
(start-service 'elogind))
marionette)
(marionette-control "sendkey ctrl-alt-f1" marionette)
;; Now we can type.
(marionette-type "root\n" marionette)
(marionette-type "loginctl list-users --no-legend > users\n"
marionette)
(marionette-type "loginctl list-seats --no-legend > seats\n"
marionette)
(marionette-type "loginctl list-sessions --no-legend > sessions\n"
marionette)
;; Read the three files.
(marionette-eval '(use-modules (rnrs io ports)) marionette)
(let ((guest-file (lambda (file)
(string-tokenize
(wait-for-file file marionette
#:read 'get-string-all)))))
(list (guest-file "/root/sessions")
(guest-file "/root/seats")
(guest-file "/root/users")))))
(test-assert "screendump"
(begin
(let ((capture (string-append #$output "/tty1.ppm")))
(marionette-control
(string-append "screendump " capture) marionette)
(file-exists? capture))))
(test-end))))
(gexp->derivation "elogind" test))
(define %test-elogind
(system-test
(name "elogind")
(description
"Test whether we can log in when elogind is enabled, and whether
'loginctl' reports accurate user, session, and seat information.")
(value
(let ((os (marionette-operating-system
(simple-operating-system
(service elogind-service-type)
(service polkit-service-type)
(service dbus-root-service-type))
#:imported-modules '((gnu services herd)
(guix combinators)))))
(run-elogind-test (virtual-machine os))))))
;;;
;;; Seatd/greetd based minimal desktop
;;;
(define %minimal-services
(append
(modify-services %base-services
;; greetd-service-type provides "greetd" PAM service
(delete login-service-type)
;; and can be used in place of mingetty-service-type
(delete mingetty-service-type))
(list
(service seatd-service-type)
(service greetd-service-type
(greetd-configuration
(greeter-supplementary-groups '("input" "video"))
(terminals
(list
;; we can make any terminal active by default
(greetd-terminal-configuration (terminal-vt "1") (terminal-switch #t))
;; we can make environment without XDG_RUNTIME_DIR set
;; even provide our own environment variables
(greetd-terminal-configuration
(terminal-vt "2")
(default-session-command
(greetd-agreety-session
(extra-env '(("MY_VAR" . "1")))
(xdg-env? #f))))
;; we can use different shell instead of default bash
(greetd-terminal-configuration
(terminal-vt "3")
(default-session-command
(greetd-agreety-session (command (file-append zsh "/bin/zsh")))))
;; we can use any other executable command as greeter
(greetd-terminal-configuration
(terminal-vt "4")
(default-session-command (program-file "my-noop-greeter" #~(exit))))
(greetd-terminal-configuration (terminal-vt "5"))
(greetd-terminal-configuration (terminal-vt "6"))))))
;; mingetty-service-type can be used in parallel
;; if needed to do so, do not (delete login-service-type)
;; as illustrated above
#| (service mingetty-service-type (mingetty-configuration (tty "tty8"))) |#)))
(define-syntax-rule (minimal-operating-system user-services ...)
"Return an operating system that includes USER-SERVICES in addition to
minimal %BASE-SERVICES."
(operating-system (inherit %simple-os)
(services (cons* user-services ... %minimal-services))))
(define (run-minimal-desktop-test os vm)
(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-64)
(ice-9 pretty-print))
(define marionette
(make-marionette #$vm))
(define (file-get-all-strings fname)
(marionette-eval '(use-modules (rnrs io ports)) marionette)
(wait-for-file fname marionette #:read 'get-string-all))
(define (wait-for-unix-socket-m socket)
(wait-for-unix-socket socket marionette))
(mkdir #$output)
(chdir #$output)
(test-runner-current (system-test-runner #$output))
(test-begin "minimal-desktop")
(test-assert "seatd is ready"
(wait-for-unix-socket-m "/run/seatd.sock"))
(test-equal "login user on tty1"
"alice\n"
(begin
;; Wait for tty1.
(marionette-eval
'(begin
(use-modules (gnu services herd))
(start-service 'term-tty1))
marionette)
(marionette-control "sendkey ctrl-alt-f1" marionette)
;; login as root change alice password and exit
;; then login as alice
(for-each
(lambda (cmd) (marionette-type cmd marionette) (sleep 1))
(list
"root\n"
"passwd alice\n"
"alice\n"
"alice\n"
"exit\n"
"alice\n"
"alice\n"
"id -un > logged-in\n"))
(file-get-all-strings "/home/alice/logged-in")))
(test-equal "validate user environment"
'("SEATD_SOCK=/run/seatd.sock"
"XDG_RUNTIME_DIR=/run/user/1000"
"XDG_SEAT=seat0"
"XDG_VTNR=1")
(begin
(marionette-type "env > env\n" marionette)
(sleep 1)
(define user-env (string-tokenize
(file-get-all-strings "/home/alice/env")))
(define (expected-var var)
(any (lambda (s) (string-contains var s))
'("SEATD_SOCK"
"XDG_RUNTIME_DIR"
"XDG_SEAT"
"XDG_VTNR")))
(sort (filter expected-var user-env) string<?)))
(test-assert "validate SEATD_SOCK and GREETD_SOCK"
(begin
(marionette-type "env > env\n" marionette)
(sleep 1)
(define (sock-var? var)
(any (lambda (s) (string-contains var s))
'("SEATD_SOCK" "GREETD_SOCK")))
(define (sock-var-sock var)
(car (cdr (string-split var #\=))))
(let*
((out (file-get-all-strings "/home/alice/env"))
(out (string-tokenize out))
(out (filter sock-var? out))
(socks (map sock-var-sock out))
(socks (map wait-for-unix-socket-m socks)))
(and (= 2 (length socks)) (every identity socks)))))
(test-equal "seatd.sock ownership"
'("root" "seat")
`(,(marionette-eval
'(passwd:name (getpwuid (stat:uid (stat "/run/seatd.sock"))))
marionette)
,(marionette-eval
'(group:name (getgrgid (stat:gid (stat "/run/seatd.sock"))))
marionette)))
(test-assert "greetd is ready"
(begin
(marionette-type "ps -C greetd -o pid,args --no-headers > ps-greetd\n"
marionette)
(sleep 1)
(define (greetd-daemon? cmd)
(string-contains cmd "config"))
(define (greetd-cmd-to-pid cmd)
(car (string-split cmd #\space)))
(define (greetd-pid-to-sock pid)
(string-append "/run/greetd-" pid ".sock"))
(let* ((out (file-get-all-strings "/home/alice/ps-greetd"))
(out (string-split out #\newline))
(out (map string-trim-both out))
(out (filter greetd-daemon? out))
(pids (map greetd-cmd-to-pid out))
(socks (map greetd-pid-to-sock pids))
(socks (map wait-for-unix-socket-m socks)))
(every identity socks))))
;; a bit weak, but tests everything at once actually
(test-equal "check /run/user/<uid> mounted and writable"
"alice\n"
(begin
(marionette-type "echo alice > /run/user/1000/test\n" marionette)
(file-get-all-strings "/run/user/1000/test")))
(test-equal "check greeter user has correct groups"
"greeter input video\n"
(begin
(marionette-type "id -Gn greeter > /run/user/1000/greeter-groups\n"
marionette)
(file-get-all-strings "/run/user/1000/greeter-groups")))
(test-assert "screendump"
(begin
(marionette-control (string-append "screendump " #$output
"/tty1.ppm")
marionette)
(file-exists? "tty1.ppm")))
(test-end))))
(gexp->derivation "minimal-desktop" test))
(define %test-minimal-desktop
(system-test
(name "minimal-desktop")
(description
"Test whether we can log in when seatd and greetd is enabled")
(value
(let* ((os (marionette-operating-system
(minimal-operating-system)
#:imported-modules '((gnu services herd)
(guix combinators))))
(vm (virtual-machine os)))
(run-minimal-desktop-test (virtualized-operating-system os '())
#~(list #$vm))))))
