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+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2024 Richard Sent <richard@freakingpenguin.com>.
+;;;
+;;; 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 sddm)
+ #:use-module (gnu bootloader)
+ #:use-module (gnu bootloader grub)
+ #:use-module (gnu packages)
+ #:use-module (gnu packages ocr)
+ #:use-module (gnu packages xorg)
+ #:use-module (gnu services)
+ #:use-module (gnu services desktop)
+ #:use-module (gnu services sddm)
+ #:use-module (gnu services xorg)
+ #:use-module (gnu system)
+ #:use-module (gnu system vm)
+ #:use-module (gnu tests)
+ #:use-module (guix gexp)
+ #:use-module (guix modules)
+ #:use-module (srfi srfi-1)
+ #:export (%test-sddm))
+
+(define %sddm-os
+ (operating-system
+ (inherit %simple-os)
+ (services
+ (cons* (service sddm-service-type)
+ (modify-services %desktop-services
+ (delete gdm-service-type))))))
+
+(define (run-sddm-test)
+ "Run tests in %SDDM-OS."
+
+ (define os (marionette-operating-system
+ %sddm-os
+ #:imported-modules (source-module-closure
+ '((gnu services herd)))))
+
+ (define vm (virtual-machine
+ (operating-system os)
+ ;; Test may nondeterministically fail with default memory size.
+ (memory-size 1024)))
+
+ (define test
+ (with-imported-modules (source-module-closure
+ '((gnu build marionette)))
+ #~(begin
+ (use-modules (gnu build marionette)
+ (srfi srfi-26)
+ (srfi srfi-64))
+
+ (let ((marionette (make-marionette (list #$vm))))
+
+ (test-runner-current (system-test-runner #$output))
+ (test-begin "sddm")
+
+ (test-assert "service is running"
+ (marionette-eval
+ '(begin
+ (use-modules (gnu services herd))
+ ;; sddm's shepherd service is called xorg-server
+ (start-service 'xorg-server))
+ marionette))
+
+ (test-assert "service can be stopped"
+ (marionette-eval
+ '(begin
+ (use-modules (gnu services herd))
+ (stop-service 'xorg-server))
+ marionette))
+
+ (test-assert "service can be restarted"
+ (marionette-eval
+ '(begin
+ (use-modules (gnu services herd))
+ (restart-service 'xorg-server))
+ marionette))
+
+ (test-assert "login screen up"
+ ;; GNU Ocrad fails to recognize any text, so use Tesseract.
+ (wait-for-screen-text marionette
+ ;; Login button not recognized, use SDDM's
+ ;; welcome message.
+ (cut string-contains <> (string-append "Welcome to "
+ #$(operating-system-host-name %sddm-os)))
+ #:ocr #$(file-append tesseract-ocr
+ "/bin/tesseract")
+ #:timeout 60))
+
+ (test-end)))))
+
+ (gexp->derivation "sddm-test" test))
+
+(define %test-sddm
+ (system-test
+ (name "sddm")
+ (description "Basic tests for the SDDM service.")
+ (value (run-sddm-test))))