1 ;;; GNU Guix --- Functional package management for GNU
2 ;;; Copyright © 2016, 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
3 ;;; Copyright © 2017 Mathieu Othacehe <m.othacehe@gmail.com>
4 ;;; Copyright © 2017 Tobias Geerinckx-Rice <me@tobias.gr>
6 ;;; This file is part of GNU Guix.
8 ;;; GNU Guix is free software; you can redistribute it and/or modify it
9 ;;; under the terms of the GNU General Public License as published by
10 ;;; the Free Software Foundation; either version 3 of the License, or (at
11 ;;; your option) any later version.
13 ;;; GNU Guix is distributed in the hope that it will be useful, but
14 ;;; WITHOUT ANY WARRANTY; without even the implied warranty of
15 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 ;;; GNU General Public License for more details.
18 ;;; You should have received a copy of the GNU General Public License
19 ;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
21 (define-module (gnu tests)
22 #:use-module (guix gexp)
23 #:use-module (guix utils)
24 #:use-module (guix records)
25 #:use-module ((guix ui) #:select (warn-about-load-error))
26 #:use-module (gnu bootloader)
27 #:use-module (gnu bootloader grub)
28 #:use-module (gnu system)
29 #:use-module (gnu system file-systems)
30 #:use-module (gnu system shadow)
31 #:use-module (gnu services)
32 #:use-module (gnu services base)
33 #:use-module (gnu services shepherd)
34 #:use-module (guix discovery)
35 #:use-module (srfi srfi-1)
36 #:use-module (srfi srfi-9 gnu)
37 #:use-module (ice-9 match)
38 #:export (marionette-configuration
39 marionette-configuration?
40 marionette-configuration-device
41 marionette-configuration-imported-modules
42 marionette-configuration-requirements
44 marionette-service-type
45 marionette-operating-system
48 simple-operating-system
54 system-test-description
62 ;;; This module provides the infrastructure to run operating system tests.
63 ;;; The most important part of that is tools to instrument the OS under test,
64 ;;; essentially allowing to run in a virtual machine controlled by the host
65 ;;; system--hence the name "marionette".
69 (define-record-type* <marionette-configuration>
70 marionette-configuration make-marionette-configuration
71 marionette-configuration?
72 (device marionette-configuration-device ;string
73 (default "/dev/virtio-ports/org.gnu.guix.port.0"))
74 (imported-modules marionette-configuration-imported-modules
76 (requirements marionette-configuration-requirements ;list of symbols
79 (define (marionette-shepherd-service config)
80 "Return the Shepherd service for the marionette REPL"
82 (($ <marionette-configuration> device imported-modules requirement)
83 (list (shepherd-service
84 (provision '(marionette))
86 ;; Always depend on UDEV so that DEVICE is available.
87 (requirement `(udev ,@requirement))
89 (modules '((ice-9 match)
93 (with-imported-modules imported-modules
95 (define (self-quoting? x)
96 (letrec-syntax ((one-of (syntax-rules ()
100 (one-of rest ...))))))
101 (one-of symbol? string? pair? null? vector?
102 bytevector? number? boolean?)))
104 (match (primitive-fork)
109 (let ((repl (open-file #$device "r+0"))
110 (console (open-file "/dev/console" "r+0")))
111 ;; Redirect output to the console.
114 (dup2 (fileno console) 1)
115 (dup2 (fileno console) 2)
118 (display 'ready repl)
128 (let ((result (primitive-eval expr)))
129 (write (if (self-quoting? result)
131 (object->string result))
134 (print-exception (current-error-port)
135 (stack-ref (make-stack #t) 1)
140 (primitive-exit 1))))
143 (stop #~(make-kill-destructor)))))))
145 (define marionette-service-type
146 ;; This is the type of the "marionette" service, allowing a guest system to
147 ;; be manipulated from the host. This marionette REPL is essentially a
148 ;; universal backdoor.
149 (service-type (name 'marionette-repl)
151 (list (service-extension shepherd-root-service-type
152 marionette-shepherd-service)))))
154 (define* (marionette-operating-system os
156 (imported-modules '())
158 "Return a marionetteed variant of OS such that OS can be used as a
159 marionette in a virtual machine--i.e., controlled from the host system. The
160 marionette service in the guest is started after the Shepherd services listed
164 ;; Make sure the guest dies on error.
165 (kernel-arguments (cons "panic=1"
166 (operating-system-user-kernel-arguments os)))
167 ;; Make sure the guest doesn't hang in the REPL on error.
168 (initrd (lambda (fs . rest)
169 (apply (operating-system-initrd os) fs
170 #:on-error 'backtrace
172 (services (cons (service marionette-service-type
173 (marionette-configuration
174 (requirements requirements)
175 (imported-modules imported-modules)))
176 (operating-system-user-services os)))))
178 (define-syntax define-os-with-source
179 (syntax-rules (use-modules operating-system)
180 "Define two variables: OS containing the given operating system, and
181 SOURCE containing the source to define OS as an sexp.
183 This is convenient when we need both the <operating-system> object so we can
184 instantiate it, and the source to create it so we can store in in a file in
185 the system under test."
187 (use-modules modules ...)
188 (operating-system fields ...))
191 (operating-system fields ...))
194 (use-modules modules ...)
195 (operating-system fields ...)))))))
199 ;;; Simple operating systems.
204 (host-name "komputilo")
205 (timezone "Europe/Berlin")
206 (locale "en_US.UTF-8")
208 (bootloader (bootloader-configuration
209 (bootloader grub-bootloader)
210 (target "/dev/sdX")))
211 (file-systems (cons (file-system
212 (device (file-system-label "my-root"))
218 (users (cons (user-account
220 (comment "Bob's sister")
222 (supplementary-groups '("wheel" "audio" "video")))
223 %base-user-accounts))))
225 (define-syntax-rule (simple-operating-system user-services ...)
226 "Return an operating system that includes USER-SERVICES in addition to
228 (operating-system (inherit %simple-os)
229 (services (cons* user-services ... %base-services))))
237 (define-record-type* <system-test> system-test make-system-test
239 (name system-test-name) ;string
240 (value system-test-value) ;%STORE-MONAD value
241 (description system-test-description) ;string
242 (location system-test-location (innate) ;<location>
243 (default (and=> (current-source-location)
244 source-properties->location))))
246 (define (write-system-test test port)
248 (($ <system-test> name _ _ ($ <location> file line))
249 (format port "#<system-test ~a ~a:~a ~a>"
251 (number->string (object-address test) 16)))
252 (($ <system-test> name)
253 (format port "#<system-test ~a ~a>" name
254 (number->string (object-address test) 16)))))
256 (set-record-type-printer! <system-test> write-system-test)
258 (define (test-modules)
259 "Return the list of modules that define system tests."
260 (scheme-modules (dirname (search-path %load-path "guix.scm"))
262 #:warn warn-about-load-error))
264 (define (fold-system-tests proc seed)
265 "Invoke PROC on each system test, passing it the test and the previous
267 (fold-module-public-variables (lambda (obj result)
268 (if (system-test? obj)
274 (define (all-system-tests)
275 "Return the list of system tests."
276 (reverse (fold-system-tests cons '())))
278 ;;; tests.scm ends here