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