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guile/test-suite/tests/time.test
Kevin Ryde c59e0b9fb1 (gmtime, strptime): New tests, but unresolved.
(internal-time-units-per-second): New test.
2004-09-07 00:17:49 +00:00

112 lines
3.4 KiB
Scheme

;;;; time.test --- test suite for Guile's time functions -*- scheme -*-
;;;; Jim Blandy <jimb@red-bean.com> --- June 1999, 2004
;;;;
;;;; Copyright (C) 1999, 2004 Free Software Foundation, Inc.
;;;;
;;;; This program 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 2, or (at your option)
;;;; any later version.
;;;;
;;;; This program 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 this software; see the file COPYING. If not, write to
;;;; the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
;;;; Boston, MA 02111-1307 USA
(define-module (test-suite test-time)
#:use-module (test-suite lib)
#:use-module (ice-9 threads))
;;;
;;; gmtime
;;;
(with-test-prefix "gmtime"
(for-each (lambda (t)
(pass-if (list "in another thread after error" t)
(or (provided? 'threads) (throw 'unsupported))
;; actually this test is perfectly good, but the "internal
;; define - missing body expression" in syntax.test somehow
;; ends up leaving SCM_DEFER_INTS, making the test here hang
;;
(throw 'unresolved)
(alarm 5)
(false-if-exception (gmtime t))
(future-ref (future (catch 'out-of-range
(lambda () (gmtime t))
(lambda args #f))))
(alarm 0)
#t))
;; time values that might provoke an error from libc
;; on 32-bit glibc all values (which fit) are fine
;; on 64-bit glibc apparently 2^63 can overflow a 32-bit tm_year
(list (1- (ash 1 31)) (1- (ash 1 63))
-1 (- (ash 1 31)) (- (ash 1 63)))))
;;;
;;; internal-time-units-per-second
;;;
(with-test-prefix "internal-time-units-per-second"
;; Check that sleep 1 gives about internal-time-units-per-second worth of
;; elapsed time from times:clock. This mainly ensures
;; internal-time-units-per-second correctly indicates CLK_TCK units.
;;
(pass-if "versus times and sleep"
(or (defined? 'times) (throw 'unsupported))
(let ((old (times)))
(sleep 1)
(let* ((new (times))
(elapsed (- (tms:clock new) (tms:clock old))))
(<= (* 0.5 internal-time-units-per-second)
elapsed
(* 2 internal-time-units-per-second))))))
;;;
;;; strftime
;;;
;; Note we must force isdst to get the ZOW zone name out of %Z on HP-UX.
;; If localtime is in daylight savings then it will decide there's no
;; daylight savings zone name for the fake ZOW, and come back empty.
;;
(pass-if "strftime %Z doesn't return garbage"
(let ((t (localtime (current-time))))
(set-tm:zone t "ZOW")
(set-tm:isdst t 0)
(string=? (strftime "%Z" t)
"ZOW")))
;;;
;;; strptime
;;;
(with-test-prefix "strptime"
(pass-if "in another thread after error"
(or (defined? 'strptime) (throw 'unsupported))
(or (provided? 'threads) (throw 'unsupported))
;; actually this test is perfectly good, but the "internal define -
;; missing body expression" in syntax.test somehow ends up leaving
;; SCM_DEFER_INTS, making the test here hang
;;
(throw 'unresolved)
(alarm 5)
(false-if-exception
(strptime "%a" "nosuchday"))
(future-ref (future (strptime "%d" "1")))
(alarm 0)
#t))