450 lines
16 KiB
Scheme
450 lines
16 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2016 Ludovic Courtès <ludo@gnu.org>
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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 base)
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#:use-module (gnu tests)
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#:use-module (gnu system)
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#:use-module (gnu system grub)
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#:use-module (gnu system file-systems)
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#:use-module (gnu system shadow)
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#:use-module (gnu system nss)
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#:use-module (gnu system vm)
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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 avahi)
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#:use-module (gnu services mcron)
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#:use-module (gnu services shepherd)
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#:use-module (gnu services networking)
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#:use-module (guix gexp)
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#:use-module (guix store)
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#:use-module (guix monads)
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#:use-module (guix packages)
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#:use-module (srfi srfi-1)
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#:export (run-basic-test
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%test-basic-os
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%test-mcron
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%test-nss-mdns))
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(define %simple-os
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(operating-system
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(host-name "komputilo")
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(timezone "Europe/Berlin")
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(locale "en_US.UTF-8")
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(bootloader (grub-configuration (device "/dev/sdX")))
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(file-systems (cons (file-system
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(device "my-root")
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(title 'label)
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(mount-point "/")
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(type "ext4"))
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%base-file-systems))
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(firmware '())
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(users (cons (user-account
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(name "alice")
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(comment "Bob's sister")
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(group "users")
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(supplementary-groups '("wheel" "audio" "video"))
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(home-directory "/home/alice"))
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%base-user-accounts))))
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(define* (run-basic-test os command #:optional (name "basic"))
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"Return a derivation called NAME that tests basic features of the OS started
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using COMMAND, a gexp that evaluates to a list of strings. Compare some
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properties of running system to what's declared in OS, an <operating-system>."
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(define test
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#~(begin
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(use-modules (gnu build marionette)
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(srfi srfi-1)
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(srfi srfi-26)
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(srfi srfi-64)
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(ice-9 match))
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(define marionette
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(make-marionette #$command))
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(mkdir #$output)
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(chdir #$output)
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(test-begin "basic")
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(test-assert "uname"
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(match (marionette-eval '(uname) marionette)
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(#("Linux" host-name version _ architecture)
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(and (string=? host-name
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#$(operating-system-host-name os))
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(string-prefix? #$(package-version
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(operating-system-kernel os))
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version)
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(string-prefix? architecture %host-type)))))
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(test-assert "shell and user commands"
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;; Is everything in $PATH?
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(zero? (marionette-eval '(system "
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. /etc/profile
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set -e -x
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guix --version
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ls --version
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grep --version
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info --version")
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marionette)))
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(test-assert "accounts"
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(let ((users (marionette-eval '(begin
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(use-modules (ice-9 match))
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(let loop ((result '()))
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(match (getpw)
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(#f (reverse result))
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(x (loop (cons x result))))))
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marionette)))
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(lset= string=?
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(map passwd:name users)
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(list
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#$@(map user-account-name
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(operating-system-user-accounts os))))))
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(test-assert "shepherd services"
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(let ((services (marionette-eval '(begin
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(use-modules (gnu services herd))
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(call-with-values current-services
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append))
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marionette)))
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(lset= eq?
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(pk 'services services)
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'(root #$@(operating-system-shepherd-service-names os)))))
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(test-equal "login on tty1"
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"root\n"
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(begin
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(marionette-control "sendkey ctrl-alt-f1" marionette)
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;; Wait for the 'term-tty1' service to be running (using
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;; 'start-service' is the simplest and most reliable way to do
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;; that.)
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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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;; Now we can type.
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(marionette-type "root\n\nid -un > logged-in\n" marionette)
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;; It can take a while before the shell commands are executed.
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(let loop ((i 0))
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(unless (or (file-exists? "/root/logged-in") (> i 15))
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(sleep 1)
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(loop (+ i 1))))
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(marionette-eval '(use-modules (rnrs io ports)) marionette)
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(marionette-eval '(call-with-input-file "/root/logged-in"
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get-string-all)
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marionette)))
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(test-assert "host name resolution"
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(match (marionette-eval
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'(begin
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;; Wait for nscd or our requests go through it.
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(use-modules (gnu services herd))
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(start-service 'nscd)
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(list (getaddrinfo "localhost")
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(getaddrinfo #$(operating-system-host-name os))))
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marionette)
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((((? vector?) ..1) ((? vector?) ..1))
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#t)
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(x
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(pk 'failure x #f))))
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(test-equal "host not found"
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#f
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(marionette-eval
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'(false-if-exception (getaddrinfo "does-not-exist"))
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marionette))
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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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(exit (= (test-runner-fail-count (test-runner-current)) 0))))
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(gexp->derivation name test
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#:modules '((gnu build marionette))))
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(define %test-basic-os
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(system-test
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(name "basic")
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(description
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"Instrument %SIMPLE-OS, run it in a VM, and run a series of basic
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functionality tests.")
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(value
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(mlet* %store-monad ((os -> (marionette-operating-system
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%simple-os
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#:imported-modules '((gnu services herd)
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(guix combinators))))
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(run (system-qemu-image/shared-store-script
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os #:graphic? #f)))
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;; XXX: Add call to 'virtualized-operating-system' to get the exact same
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;; set of services as the OS produced by
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;; 'system-qemu-image/shared-store-script'.
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(run-basic-test (virtualized-operating-system os '())
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#~(list #$run))))))
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;;;
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;;; Mcron.
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;;;
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(define %mcron-os
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;; System with an mcron service, with one mcron job for "root" and one mcron
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;; job for an unprivileged user (note: #:user is an 'mcron2' thing.)
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(let ((job1 #~(job next-second-from
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(lambda ()
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(call-with-output-file "witness"
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(lambda (port)
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(display (list (getuid) (getgid)) port))))))
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(job2 #~(job next-second-from
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(lambda ()
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(call-with-output-file "witness"
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(lambda (port)
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(display (list (getuid) (getgid)) port))))
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#:user "alice"))
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(job3 #~(job next-second-from ;to test $PATH
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"touch witness-touch")))
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(operating-system
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(inherit %simple-os)
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(services (cons (mcron-service (list job1 job2 job3))
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(operating-system-user-services %simple-os))))))
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(define (run-mcron-test name)
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(mlet* %store-monad ((os -> (marionette-operating-system
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%mcron-os
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#:imported-modules '((gnu services herd)
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(guix combinators))))
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(command (system-qemu-image/shared-store-script
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os #:graphic? #f)))
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(define test
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#~(begin
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(use-modules (gnu build marionette)
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(srfi srfi-64)
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(ice-9 match))
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(define marionette
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(make-marionette (list #$command)))
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(define (wait-for-file file)
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;; Wait until FILE exists in the guest; 'read' its content and
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;; return it.
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(marionette-eval
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`(let loop ((i 10))
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(cond ((file-exists? ,file)
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(call-with-input-file ,file read))
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((> i 0)
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(sleep 1)
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(loop (- i 1)))
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(else
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(error "file didn't show up" ,file))))
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marionette))
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(mkdir #$output)
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(chdir #$output)
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(test-begin "mcron")
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(test-eq "service running"
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'running!
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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 'mcron)
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'running!)
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marionette))
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;; Make sure root's mcron job runs, has its cwd set to "/root", and
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;; runs with the right UID/GID.
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(test-equal "root's job"
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'(0 0)
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(wait-for-file "/root/witness"))
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;; Likewise for Alice's job. We cannot know what its GID is since
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;; it's chosen by 'groupadd', but it's strictly positive.
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(test-assert "alice's job"
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(match (wait-for-file "/home/alice/witness")
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((1000 gid)
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(>= gid 100))))
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;; Last, the job that uses a command; allows us to test whether
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;; $PATH is sane. (Note that 'marionette-eval' stringifies objects
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;; that don't have a read syntax, hence the string.)
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(test-equal "root's job with command"
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"#<eof>"
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(wait-for-file "/root/witness-touch"))
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(test-end)
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(exit (= (test-runner-fail-count (test-runner-current)) 0))))
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(gexp->derivation name test
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#:modules '((gnu build marionette)))))
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(define %test-mcron
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(system-test
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(name "mcron")
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(description "Make sure the mcron service works as advertised.")
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(value (run-mcron-test name))))
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;;;
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;;; Avahi and NSS-mDNS.
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;;;
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(define %avahi-os
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(operating-system
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(inherit %simple-os)
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(name-service-switch %mdns-host-lookup-nss)
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(services (cons* (avahi-service #:debug? #t)
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(dbus-service)
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(dhcp-client-service) ;needed for multicast
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;; Enable heavyweight debugging output.
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(modify-services (operating-system-user-services
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%simple-os)
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(nscd-service-type config
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=> (nscd-configuration
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(inherit config)
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(debug-level 3)
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(log-file "/dev/console")))
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(syslog-service-type config
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=>
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(plain-file
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"syslog.conf"
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"*.* /dev/console\n")))))))
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(define (run-nss-mdns-test)
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;; Test resolution of '.local' names via libc. Start the marionette service
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;; *after* nscd. Failing to do that, libc will try to connect to nscd,
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;; fail, then never try again (see '__nss_not_use_nscd_hosts' in libc),
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;; leading to '.local' resolution failures.
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(mlet* %store-monad ((os -> (marionette-operating-system
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%avahi-os
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#:requirements '(nscd)
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#:imported-modules '((gnu services herd)
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(guix combinators))))
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(run (system-qemu-image/shared-store-script
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os #:graphic? #f)))
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(define mdns-host-name
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(string-append (operating-system-host-name os)
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".local"))
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(define test
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#~(begin
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(use-modules (gnu build marionette)
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(srfi srfi-1)
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(srfi srfi-64)
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(ice-9 match))
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(define marionette
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(make-marionette (list #$run)))
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(mkdir #$output)
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(chdir #$output)
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(test-begin "avahi")
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(test-assert "wait for services"
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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 'nscd)
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;; XXX: Work around a race condition in nscd: nscd creates its
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;; PID file before it is listening on its socket.
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(let ((sock (socket PF_UNIX SOCK_STREAM 0)))
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(let try ()
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(catch 'system-error
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(lambda ()
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(connect sock AF_UNIX "/var/run/nscd/socket")
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(close-port sock)
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(format #t "nscd is ready~%"))
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(lambda args
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(format #t "waiting for nscd...~%")
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(usleep 500000)
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(try)))))
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;; Wait for the other useful things.
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(start-service 'avahi-daemon)
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(start-service 'networking)
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#t)
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marionette))
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(test-equal "avahi-resolve-host-name"
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0
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(marionette-eval
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'(system*
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"/run/current-system/profile/bin/avahi-resolve-host-name"
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"-v" #$mdns-host-name)
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marionette))
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(test-equal "avahi-browse"
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0
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(marionette-eval
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'(system* "avahi-browse" "-avt")
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marionette))
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(test-assert "getaddrinfo .local"
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;; Wait for the 'avahi-daemon' service and perform a resolution.
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(match (marionette-eval
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'(getaddrinfo #$mdns-host-name)
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marionette)
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(((? vector? addrinfos) ..1)
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(pk 'getaddrinfo addrinfos)
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(and (any (lambda (ai)
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(= AF_INET (addrinfo:fam ai)))
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addrinfos)
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(any (lambda (ai)
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(= AF_INET6 (addrinfo:fam ai)))
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addrinfos)))))
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(test-assert "gethostbyname .local"
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(match (pk 'gethostbyname
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(marionette-eval '(gethostbyname #$mdns-host-name)
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marionette))
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((? vector? result)
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(and (string=? (hostent:name result) #$mdns-host-name)
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(= (hostent:addrtype result) AF_INET)))))
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(test-end)
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(exit (= (test-runner-fail-count (test-runner-current)) 0))))
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(gexp->derivation "nss-mdns" test
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#:modules '((gnu build marionette)))))
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(define %test-nss-mdns
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(system-test
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(name "nss-mdns")
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(description
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"Test Avahi's multicast-DNS implementation, and in particular, test its
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glibc name service switch (NSS) module.")
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(value (run-nss-mdns-test))))
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