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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2026 Giacomo Leidi <therewasa@fishinthecalculator.me>
;;;
;;; 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 linux)
#:use-module (gnu packages linux)
#:use-module (gnu services)
#:use-module (gnu services linux)
#:use-module (gnu services networking)
#:use-module (gnu system)
#:use-module (gnu system vm)
#:use-module (gnu tests)
#:use-module (guix derivations)
#:use-module (guix gexp)
#:use-module (guix modules)
#:use-module (guix packages)
#:use-module (guix monads)
#:use-module (guix store)
#:use-module (guix utils)
#:export (%test-tuned))
(define %tuned-os
(simple-operating-system
(service dhcpcd-service-type)
(service tuned-service-type
(tuned-configuration
(power-profiles-daemon-support? #t)))))
(define (run-tuned-service-test)
(define os
(marionette-operating-system
(operating-system-with-gc-roots
%tuned-os
(list))
#:imported-modules '((gnu build dbus-service)
(gnu services herd)
(guix combinators))))
(define vm
(virtual-machine
(operating-system os)
(volatile? #f)
(memory-size 1024)
(disk-image-size (* 5000 (expt 2 20)))
(port-forwardings '())))
(define test
(with-imported-modules '((gnu build dbus-service)
(gnu build marionette))
#~(begin
(use-modules (srfi srfi-1) (srfi srfi-11) (srfi srfi-64)
(gnu build dbus-service)
(gnu build marionette))
(define marionette
;; Relax timeout to accommodate older systems and
;; allow for pulling the image.
(make-marionette (list #$vm) #:timeout 60))
(test-runner-current (system-test-runner #$output))
(test-begin "tuned-service")
(marionette-eval
'(begin
(use-modules (gnu services herd))
(wait-for-service 'user-processes))
marionette)
(test-assert "tuned running"
(marionette-eval
'(begin
(use-modules (gnu services herd))
(wait-for-service 'tuned))
marionette))
(test-assert "/etc/tuned/tuned-main.conf exists"
(wait-for-file "/etc/tuned/tuned-main.conf" marionette))
(test-equal "/etc/tuned/tuned-main.conf is well formed"
'("daemon=true"
"dynamic_tuning=false"
"default_instance_priority=0"
"recommend_command=true"
"sleep_interval=1"
"update_interval=10")
(marionette-eval
'(begin
(use-modules (srfi srfi-1)
(srfi srfi-26)
(ice-9 textual-ports))
;; The profile_dirs field may contain store paths,
;; so we check only the first 7 fields and exclude the last.
(take
(filter
(compose not
(cut string=? "" <>))
(string-split
(call-with-input-file "/etc/tuned/tuned-main.conf"
get-string-all)
#\newline))
6))
marionette))
(test-assert "tuned-ppd running"
(marionette-eval
'(begin
(use-modules (gnu services herd))
(wait-for-service 'tuned-ppd))
marionette))
(test-assert "/etc/tuned/ppd.conf exists"
(wait-for-file "/etc/tuned/ppd.conf" marionette))
(test-equal "/etc/tuned/ppd.conf is well formed"
'("[main]"
"default=balanced"
"battery_detection=true"
"sysfs_acpi_monitor=true"
"[profiles]"
"power-saver=powersave"
"balanced=balanced"
"performance=throughput-performance"
"[battery]"
"balanced=balanced-battery")
(marionette-eval
'(begin
(use-modules (srfi srfi-26)
(ice-9 textual-ports))
;; The profile_dirs field may contain store paths,
;; so we check only the first 7 fields and exclude the last.
(filter
(compose not
(cut string=? "" <>))
(string-split
(call-with-input-file "/etc/tuned/ppd.conf"
get-string-all)
#\newline)))
marionette))
(test-assert "get tuned profile"
(begin
(define (run-test)
(marionette-eval
`(begin
(use-modules (ice-9 popen)
(ice-9 textual-ports))
(define slurp
(lambda args
(let* ((port
(apply open-pipe* OPEN_READ
(list "sh" "-l" "-c"
(string-join args " "))))
(output (get-string-all port))
(status (close-pipe port)))
output)))
(slurp "tuned-adm" "active"))
marionette))
;; Allow services to come up on slower machines.
(with-retries
80 1
(string=? "Current active profile: balanced\n" (run-test)))))
(test-assert "set tuned profile"
(begin
(define (run-test)
(marionette-eval
`(begin
(use-modules (ice-9 popen)
(ice-9 textual-ports))
(define slurp
(lambda args
(let* ((port
(apply open-pipe* OPEN_READ
(list "sh" "-l" "-c"
(string-join args " "))))
(output (get-string-all port))
(status (close-pipe port)))
output)))
(slurp "tuned-adm" "profile" "powersave")
(slurp "tuned-adm" "active"))
marionette))
;; Allow services to come up on slower machines.
(with-retries
80 1
(string=? "Current active profile: powersave\n" (run-test)))))
(test-end))))
(gexp->derivation "tuned-service-test" test))
(define %test-tuned
(system-test
(name "tuned")
(description "Test TuneD service.")
(value (run-tuned-service-test))))
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