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;;;; time.test --- test suite for Guile's time functions -*- scheme -*-
;;;; Jim Blandy <[email protected]> --- June 1999, 2004
;;;;
;;;; Copyright (C) 1999,2004,2006,2007,2008,2019,2021 Free Software Foundation, Inc.
;;;;
;;;; This library is free software; you can redistribute it and/or
;;;; modify it under the terms of the GNU Lesser General Public
;;;; License as published by the Free Software Foundation; either
;;;; version 3 of the License, or (at your option) any later version.
;;;;
;;;; This library 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
;;;; Lesser General Public License for more details.
;;;;
;;;; You should have received a copy of the GNU Lesser General Public
;;;; License along with this library; if not, write to the Free Software
;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 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))
(alarm 5)
(false-if-exception (gmtime t))
(join-thread (begin-thread (catch #t
(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))))))
;;;
;;; localtime
;;;
(with-test-prefix "localtime"
;; gmtoff is calculated with some explicit code, try to exercise that
;; here, looking at cases where the localtime and gmtime are within the same
;; day, or crossing midnight, or crossing new year
(pass-if "gmtoff of EST+5 at GMT 10:00am on 10 Jan 2000"
(let ((tm (gmtime 0)))
(set-tm:hour tm 10)
(set-tm:mday tm 10)
(set-tm:mon tm 0)
(set-tm:year tm 100)
(let* ((t (car (mktime tm "GMT")))
(tm (localtime t "EST+5")))
(eqv? (* 5 3600) (tm:gmtoff tm)))))
;; crossing forward over day boundary
(pass-if "gmtoff of EST+5 at GMT 3am on 10 Jan 2000"
(let ((tm (gmtime 0)))
(set-tm:hour tm 3)
(set-tm:mday tm 10)
(set-tm:mon tm 0)
(set-tm:year tm 100)
(let* ((t (car (mktime tm "GMT")))
(tm (localtime t "EST+5")))
(eqv? (* 5 3600) (tm:gmtoff tm)))))
;; crossing backward over day boundary
(pass-if "gmtoff of AST-10 at GMT 10pm on 10 Jan 2000"
(let ((tm (gmtime 0)))
(set-tm:hour tm 22)
(set-tm:mday tm 10)
(set-tm:mon tm 0)
(set-tm:year tm 100)
(let* ((t (car (mktime tm "GMT")))
(tm (localtime t "AST-10")))
(eqv? (* -10 3600) (tm:gmtoff tm)))))
;; crossing forward over year boundary
(pass-if "gmtoff of EST+5 at GMT 3am on 1 Jan 2000"
(let ((tm (gmtime 0)))
(set-tm:hour tm 3)
(set-tm:mday tm 1)
(set-tm:mon tm 0)
(set-tm:year tm 100)
(let* ((t (car (mktime tm "GMT")))
(tm (localtime t "EST+5")))
(eqv? (* 5 3600) (tm:gmtoff tm)))))
;; crossing backward over day boundary
(pass-if "gmtoff of AST-10 at GMT 10pm on 31 Dec 2000"
(let ((tm (gmtime 0)))
(set-tm:hour tm 22)
(set-tm:mday tm 31)
(set-tm:mon tm 11)
(set-tm:year tm 100)
(let* ((t (car (mktime tm "GMT")))
(tm (localtime t "AST-10")))
(eqv? (* -10 3600) (tm:gmtoff tm))))))
;;;
;;; mktime
;;;
(with-test-prefix "mktime"
;; gmtoff is calculated with some explicit code, try to exercise that
;; here, looking at cases where the mktime and gmtime are within the same
;; day, or crossing midnight, or crossing new year
(pass-if "gmtoff of EST+5 at 10:00am on 10 Jan 2000"
(let ((tm (gmtime 0)))
(set-tm:hour tm 10)
(set-tm:mday tm 10)
(set-tm:mon tm 0)
(set-tm:year tm 100)
(let ((tm (cdr (mktime tm "EST+5"))))
(eqv? (* 5 3600) (tm:gmtoff tm)))))
;; crossing forward over day boundary
(pass-if "gmtoff of EST+5 at 10:00pm on 10 Jan 2000"
(let ((tm (gmtime 0)))
(set-tm:hour tm 22)
(set-tm:mday tm 10)
(set-tm:mon tm 0)
(set-tm:year tm 100)
(let ((tm (cdr (mktime tm "EST+5"))))
(eqv? (* 5 3600) (tm:gmtoff tm)))))
;; crossing backward over day boundary
(pass-if "gmtoff of AST-10 at 3:00am on 10 Jan 2000"
(let ((tm (gmtime 0)))
(set-tm:hour tm 3)
(set-tm:mday tm 10)
(set-tm:mon tm 0)
(set-tm:year tm 100)
(let ((tm (cdr (mktime tm "AST-10"))))
(eqv? (* -10 3600) (tm:gmtoff tm)))))
;; crossing forward over year boundary
(pass-if "gmtoff of EST+5 at 10:00pm on 31 Dec 2000"
(let ((tm (gmtime 0)))
(set-tm:hour tm 22)
(set-tm:mday tm 31)
(set-tm:mon tm 11)
(set-tm:year tm 100)
(let ((tm (cdr (mktime tm "EST+5"))))
(eqv? (* 5 3600) (tm:gmtoff tm)))))
;; crossing backward over day boundary
(pass-if "gmtoff of AST-10 at 3:00am on 1 Jan 2000"
(let ((tm (gmtime 0)))
(set-tm:hour tm 3)
(set-tm:mday tm 1)
(set-tm:mon tm 0)
(set-tm:year tm 100)
(let ((tm (cdr (mktime tm "AST-10"))))
(eqv? (* -10 3600) (tm:gmtoff tm))))))
;;;
;;; strftime
;;;
(with-test-prefix "strftime"
(pass-if-equal "strftime %Z doesn't return garbage"
"ZOW"
(let ((t (localtime (current-time))))
(set-tm:zone t "ZOW")
(set-tm:isdst t 0)
(strftime "%Z" t)))
(pass-if-equal "strftime passes wide characters"
"\u0100"
(with-locale "en_US.utf8"
(let ((t (localtime (current-time))))
(substring (strftime "\u0100%Z" t) 0 1))))
(with-test-prefix "C99 %z format"
;; %z here is quite possibly affected by the same tm:gmtoff vs current
;; zone as %Z above is, so in the following tests we make them the same.
(pass-if-equal "GMT"
"+0000"
(begin
(putenv "TZ=GMT+0")
(tzset)
(let ((tm (localtime 86400)))
(strftime "%z" tm))))
;; prior to guile 1.6.9 and 1.8.1 this test failed, getting "+0500",
;; because we didn't adjust for tm:gmtoff being west of Greenwich versus
;; tm_gmtoff being east of Greenwich
(pass-if-equal "EST+5"
"-0500"
(begin
(putenv "TZ=EST+5")
(tzset)
(let ((tm (localtime 86400)))
(strftime "%z" tm))))
(pass-if-equal "strftime fr_FR.utf8"
" 1 février 1970"
(with-locale "fr_FR.utf8"
(strftime "%e %B %Y" (gmtime (* 31 24 3600)))))
(pass-if-equal "strftime fr_FR.iso88591" ;<https://bugs.gnu.org/35920>
" 1 février 1970"
(with-locale "fr_FR.iso88591"
(strftime "%e %B %Y" (gmtime (* 31 24 3600)))))))
;;;
;;; strptime
;;;
(with-test-prefix "strptime"
(pass-if "in another thread after error"
(or (defined? 'strptime) (throw 'unsupported))
(or (provided? 'threads) (throw 'unsupported))
(alarm 5)
(false-if-exception
(strptime "%a" "nosuchday"))
(join-thread (begin-thread (strptime "%d" "1")))
(alarm 0)
#t)
(with-test-prefix "GNU %s format"
;; "%s" to parse a count of seconds since 1970 is a GNU extension
(define have-strptime-%s
(false-if-exception (strptime "%s" "0")))
(pass-if "gmtoff on GMT"
(or have-strptime-%s (throw 'unsupported))
(putenv "TZ=GMT+0")
(tzset)
(let ((tm (car (strptime "%s" "86400"))))
(eqv? 0 (tm:gmtoff tm))))
(pass-if-equal "strftime fr_FR.utf8"
'(1 2 1999)
(with-locale "fr_FR.utf8"
(let ((tm (car (strptime "%e %B %Y" "1 février 1999"))))
(list (tm:mday tm)
(+ 1 (tm:mon tm))
(+ 1900 (tm:year tm))))))
(pass-if-equal "strftime fr_FR.iso88591" ;<https://bugs.gnu.org/35920>
'(1 2 1999)
(with-locale "fr_FR.iso88591"
(let ((tm (car (strptime "%e %B %Y" "1 février 1999"))))
(list (tm:mday tm)
(+ 1 (tm:mon tm))
(+ 1900 (tm:year tm))))))
;; prior to guile 1.6.9 and 1.8.1 we didn't pass tm_gmtoff back from
;; strptime
(pass-if "gmtoff on EST+5"
(or have-strptime-%s (throw 'unsupported))
(putenv "TZ=EST+5")
(tzset)
(let ((tm (car (strptime "%s" "86400"))))
(eqv? (* 5 3600) (tm:gmtoff tm))))))
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