test-suite/tests/signals.test

   1 ;;;; signals.test --- test suite for Guile's signal functions       -*- scheme -*-
   2 ;;;;
   3 ;;;; Copyright (C) 2009, 2014 Free Software Foundation, Inc.
   4 ;;;;
   5 ;;;; This library is free software; you can redistribute it and/or
   6 ;;;; modify it under the terms of the GNU Lesser General Public
   7 ;;;; License as published by the Free Software Foundation; either
   8 ;;;; version 3 of the License, or (at your option) any later version.
   9 ;;;;
  10 ;;;; This library is distributed in the hope that it will be useful,
  11 ;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 ;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13 ;;;; Lesser General Public License for more details.
  14 ;;;;
  15 ;;;; You should have received a copy of the GNU Lesser General Public
  16 ;;;; License along with this library; if not, write to the Free
  17 ;;;; Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  18 ;;;; Boston, MA 02110-1301 USA
  19
  20 (define-module (test-suite test-signals)
  21   #:use-module (ice-9 match)
  22   #:use-module (test-suite lib))
  23
  24 (with-test-prefix "sigaction"
  25
  26   (pass-if-exception "handler arg is an invalid integer"
  27     exception:out-of-range
  28     (sigaction SIGINT 51))
  29
  30   )
  31
  32 (when (defined? 'setitimer)
  33   (with-test-prefix "setitimer"
  34     (with-test-prefix "current itimers are 0"
  35       (pass-if "ITIMER_REAL"
  36         (equal? (setitimer ITIMER_REAL 0 0 0 0)
  37                 '((0 . 0) (0 . 0))))
  38       (pass-if "ITIMER_VIRTUAL"
  39         (equal? (setitimer ITIMER_VIRTUAL 0 0 0 0)
  40                 '((0 . 0) (0 . 0))))
  41       (pass-if "ITIMER_PROF"
  42         (equal? (setitimer ITIMER_PROF 0 0 0 0)
  43                 '((0 . 0) (0 . 0)))))
  44
  45     (with-test-prefix "setting values correctly"
  46       (pass-if "initial setting"
  47         (equal? (setitimer ITIMER_PROF 1 0 3 0)
  48                 '((0 . 0) (0 . 0))))
  49       (pass-if "reset to zero"
  50         (match (setitimer ITIMER_PROF 0 0 0 0)
  51           (((1 . 0) (val-secs . val-usecs))
  52            ;; We don't presume that the timer is strictly lower than the
  53            ;; value at which we set it, given its limited internal
  54            ;; precision.  Assert instead that the timer is between 2 and
  55            ;; 3.5 seconds.
  56            (<= #e2e6 (+ (* val-secs #e1e6) val-usecs) #e3.5e6)))))
  57
  58     (with-test-prefix "usecs > 1e6"
  59       (pass-if "initial setting"
  60         (equal? (setitimer ITIMER_PROF 1 0 0 #e3e6)
  61                 '((0 . 0) (0 . 0))))
  62       (pass-if "reset to zero"
  63         (match (setitimer ITIMER_PROF 0 0 0 0)
  64           (((1 . 0) (val-secs . val-usecs))
  65            ;; We don't presume that the timer is strictly lower than the
  66            ;; value at which we set it, given its limited internal
  67            ;; precision.  Assert instead that the timer is between 2 and
  68            ;; 3.5 seconds.
  69            (and (<= #e2e6 (+ (* val-secs #e1e6) val-usecs) #e3.5e6)
  70                 (<= 0 val-usecs 999999))))))))