gnu/tests/linux-modules.scm


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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2019 Jakob L. Kreuze <zerodaysfordays@sdf.org>
;;; Copyright © 2020 Danny Milosavljevic <dannym@scratchpost.org>
;;; Copyright © 2020 Brice Waegeneire <brice@waegenei.re>
;;;
;;; 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-modules)
  #:use-module (gnu packages linux)
  #:use-module (gnu services)
  #:use-module (gnu services linux)
  #: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-loadable-kernel-modules-0
            %test-loadable-kernel-modules-1
            %test-loadable-kernel-modules-2))

;;; Commentary:
;;;
;;; Test <operating-system> kernel-loadable-modules.
;;;
;;; Code:

(define* (modules-loaded?-program os modules)
  "Return an executable store item that, upon being evaluated, will verify
that MODULES are actually loaded."
  (program-file
   "verify-kernel-modules-loaded.scm"
   #~(begin
     (use-modules (ice-9 rdelim)
                  (ice-9 popen)
                  (srfi srfi-1)
                  (srfi srfi-13))
     (let* ((port (open-input-pipe (string-append #$kmod "/bin/lsmod")))
            (lines (string-split (read-string port) #\newline))
            (separators (char-set #\space #\tab))
            (modules (map (lambda (line)
                            (string-take line
                                         (or (string-index line separators)
                                             0)))
                          lines))
            (status (close-pipe port)))
       (and (= status 0)
            (and-map (lambda (module)
                       (member module modules string=?))
                     '#$modules))))))

(define* (run-loadable-kernel-modules-test module-packages module-names)
  "Run a test of an OS having MODULE-PACKAGES, and verify that MODULE-NAMES
are loaded in memory."
  (define os
    (marionette-operating-system
     (operating-system
      (inherit (simple-operating-system)