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tests: processes: Skip tests if running with binfmt.

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* tests/processes.scm (binfmt-misc?): New procedure,
(test-assert*): new procedure that skips the test if binfmt-misc? returns
This commit is contained in:
Mathieu Othacehe 2019-12-10 10:48:59 +01:00
parent db1adb4242
commit 0b5ad0e756
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GPG key ID: 8354763531769CA6
1 changed files with 37 additions and 3 deletions
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40
tests/processes.scm
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@ -1,5 +1,6 @@
;;; GNU Guix --- Functional package management for GNU ;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2018 Ludovic Courtès <ludo@gnu.org> ;;; Copyright © 2018 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2019 Mathieu Othacehe <m.othacehe@gmail.com>
;;; ;;;
;;; This file is part of GNU Guix. ;;; This file is part of GNU Guix.
;;; ;;;
@ -32,15 +33,48 @@ (define-module (test-processes)
#:use-module (ice-9 match) #:use-module (ice-9 match)
#:use-module (ice-9 threads)) #:use-module (ice-9 threads))
;; When using --system argument, binfmt-misc mechanism may be used. In that
;; case, (guix script processes) won't work because:
;;
;; * ARGV0 is qemu-user and not guix-daemon.
;; * Guix-daemon won't be able to stuff client PID in ARGV1 of forked
;; processes.
;;
;; See: https://lists.gnu.org/archive/html/bug-guix/2019-12/msg00017.html.
;;
;; If we detect that we are running with binfmt emulation, all the following
;; tests must be skipped.
(define (binfmt-misc?)
(let ((pid (getpid))
(cmdline (call-with-input-file "/proc/self/cmdline" get-string-all)))
(match (primitive-fork)
(0 (dynamic-wind
(const #t)
(lambda ()
(exit
(not (equal?
(call-with-input-file (format #f "/proc/~a/cmdline" pid)
get-string-all)
cmdline))))
(const #t)))
(x (zero? (cdr (waitpid x)))))))
(define-syntax-rule (test-assert* description exp)
(begin
(when (binfmt-misc?)
(test-skip 1))
(test-assert description exp)))
(test-begin "processes") (test-begin "processes")
(test-assert "not a client" (test-assert* "not a client"
(not (find (lambda (session) (not (find (lambda (session)
(= (getpid) (= (getpid)
(process-id (daemon-session-client session)))) (process-id (daemon-session-client session))))
(daemon-sessions)))) (daemon-sessions))))
(test-assert "client" (test-assert* "client"
(with-store store (with-store store
(let* ((session (find (lambda (session) (let* ((session (find (lambda (session)
(= (getpid) (= (getpid)
@ -50,7 +84,7 @@ (define-module (test-processes)
(and (kill (process-id daemon) 0) (and (kill (process-id daemon) 0)
(string-suffix? "guix-daemon" (first (process-command daemon))))))) (string-suffix? "guix-daemon" (first (process-command daemon)))))))
(test-assert "client + lock" (test-assert* "client + lock"
(with-store store (with-store store
(call-with-temporary-directory (call-with-temporary-directory
(lambda (directory) (lambda (directory)