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69f23174d3
* libguile/stime.c (scm_strftime): Use `nstrftime ()' from Gnulib. This provides the same semantics on all platforms, thereby fixing bug #24130. * doc/ref/posix.texi (Time): Remove note about non-portable `%Z' behavior. Describe the new, portable behavior. * test-suite/tests/time.test ("strftime")["strftime %Z doesn't return garbage"]: Reinstate. ["C99 %z format"](have-strftime-%z): Remove. ("GMT", "EST+5"): Don't use `have-strftime-%z'.
263 lines
7.8 KiB
Scheme
263 lines
7.8 KiB
Scheme
;;;; time.test --- test suite for Guile's time functions -*- scheme -*-
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;;;; Jim Blandy <jimb@red-bean.com> --- June 1999, 2004
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;;;;
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;;;; Copyright (C) 1999, 2004, 2006, 2007, 2008 Free Software Foundation, Inc.
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;;;;
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;;;; This program is free software; you can redistribute it and/or modify
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;;;; it under the terms of the GNU General Public License as published by
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;;;; the Free Software Foundation; either version 2, or (at your option)
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;;;; any later version.
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;;;;
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;;;; This program is distributed in the hope that it will be useful,
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;;;; but 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 this software; see the file COPYING. If not, write to
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;;;; the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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;;;; Boston, MA 02110-1301 USA
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(define-module (test-suite test-time)
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#:use-module (test-suite lib)
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#:use-module (ice-9 threads))
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;;;
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;;; gmtime
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;;;
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(with-test-prefix "gmtime"
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(for-each (lambda (t)
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(pass-if (list "in another thread after error" t)
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(or (provided? 'threads) (throw 'unsupported))
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(alarm 5)
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(false-if-exception (gmtime t))
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(join-thread (begin-thread (catch #t
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(lambda () (gmtime t))
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(lambda args #f))))
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(alarm 0)
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#t))
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;; time values that might provoke an error from libc
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;; on 32-bit glibc all values (which fit) are fine
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;; on 64-bit glibc apparently 2^63 can overflow a 32-bit tm_year
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(list (1- (ash 1 31)) (1- (ash 1 63))
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-1 (- (ash 1 31)) (- (ash 1 63)))))
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;;;
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;;; internal-time-units-per-second
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;;;
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(with-test-prefix "internal-time-units-per-second"
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;; Check that sleep 1 gives about internal-time-units-per-second worth of
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;; elapsed time from times:clock. This mainly ensures
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;; internal-time-units-per-second correctly indicates CLK_TCK units.
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;;
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(pass-if "versus times and sleep"
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(or (defined? 'times) (throw 'unsupported))
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(let ((old (times)))
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(sleep 1)
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(let* ((new (times))
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(elapsed (- (tms:clock new) (tms:clock old))))
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(<= (* 0.5 internal-time-units-per-second)
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elapsed
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(* 2 internal-time-units-per-second))))))
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;;;
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;;; localtime
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;;;
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(with-test-prefix "localtime"
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;; gmtoff is calculated with some explicit code, try to exercise that
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;; here, looking at cases where the localtime and gmtime are within the same
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;; day, or crossing midnight, or crossing new year
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(pass-if "gmtoff of EST+5 at GMT 10:00am on 10 Jan 2000"
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(let ((tm (gmtime 0)))
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(set-tm:hour tm 10)
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(set-tm:mday tm 10)
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(set-tm:mon tm 0)
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(set-tm:year tm 100)
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(let* ((t (car (mktime tm "GMT")))
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(tm (localtime t "EST+5")))
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(eqv? (* 5 3600) (tm:gmtoff tm)))))
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;; crossing forward over day boundary
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(pass-if "gmtoff of EST+5 at GMT 3am on 10 Jan 2000"
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(let ((tm (gmtime 0)))
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(set-tm:hour tm 3)
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(set-tm:mday tm 10)
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(set-tm:mon tm 0)
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(set-tm:year tm 100)
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(let* ((t (car (mktime tm "GMT")))
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(tm (localtime t "EST+5")))
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(eqv? (* 5 3600) (tm:gmtoff tm)))))
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;; crossing backward over day boundary
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(pass-if "gmtoff of AST-10 at GMT 10pm on 10 Jan 2000"
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(let ((tm (gmtime 0)))
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(set-tm:hour tm 22)
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(set-tm:mday tm 10)
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(set-tm:mon tm 0)
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(set-tm:year tm 100)
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(let* ((t (car (mktime tm "GMT")))
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(tm (localtime t "AST-10")))
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(eqv? (* -10 3600) (tm:gmtoff tm)))))
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;; crossing forward over year boundary
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(pass-if "gmtoff of EST+5 at GMT 3am on 1 Jan 2000"
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(let ((tm (gmtime 0)))
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(set-tm:hour tm 3)
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(set-tm:mday tm 1)
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(set-tm:mon tm 0)
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(set-tm:year tm 100)
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(let* ((t (car (mktime tm "GMT")))
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(tm (localtime t "EST+5")))
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(eqv? (* 5 3600) (tm:gmtoff tm)))))
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;; crossing backward over day boundary
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(pass-if "gmtoff of AST-10 at GMT 10pm on 31 Dec 2000"
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(let ((tm (gmtime 0)))
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(set-tm:hour tm 22)
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(set-tm:mday tm 31)
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(set-tm:mon tm 11)
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(set-tm:year tm 100)
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(let* ((t (car (mktime tm "GMT")))
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(tm (localtime t "AST-10")))
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(eqv? (* -10 3600) (tm:gmtoff tm))))))
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;;;
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;;; mktime
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;;;
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(with-test-prefix "mktime"
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;; gmtoff is calculated with some explicit code, try to exercise that
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;; here, looking at cases where the mktime and gmtime are within the same
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;; day, or crossing midnight, or crossing new year
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(pass-if "gmtoff of EST+5 at 10:00am on 10 Jan 2000"
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(let ((tm (gmtime 0)))
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(set-tm:hour tm 10)
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(set-tm:mday tm 10)
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(set-tm:mon tm 0)
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(set-tm:year tm 100)
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(let ((tm (cdr (mktime tm "EST+5"))))
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(eqv? (* 5 3600) (tm:gmtoff tm)))))
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;; crossing forward over day boundary
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(pass-if "gmtoff of EST+5 at 10:00pm on 10 Jan 2000"
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(let ((tm (gmtime 0)))
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(set-tm:hour tm 22)
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(set-tm:mday tm 10)
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(set-tm:mon tm 0)
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(set-tm:year tm 100)
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(let ((tm (cdr (mktime tm "EST+5"))))
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(eqv? (* 5 3600) (tm:gmtoff tm)))))
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;; crossing backward over day boundary
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(pass-if "gmtoff of AST-10 at 3:00am on 10 Jan 2000"
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(let ((tm (gmtime 0)))
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(set-tm:hour tm 3)
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(set-tm:mday tm 10)
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(set-tm:mon tm 0)
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(set-tm:year tm 100)
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(let ((tm (cdr (mktime tm "AST-10"))))
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(eqv? (* -10 3600) (tm:gmtoff tm)))))
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;; crossing forward over year boundary
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(pass-if "gmtoff of EST+5 at 10:00pm on 31 Dec 2000"
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(let ((tm (gmtime 0)))
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(set-tm:hour tm 22)
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(set-tm:mday tm 31)
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(set-tm:mon tm 11)
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(set-tm:year tm 100)
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(let ((tm (cdr (mktime tm "EST+5"))))
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(eqv? (* 5 3600) (tm:gmtoff tm)))))
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;; crossing backward over day boundary
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(pass-if "gmtoff of AST-10 at 3:00am on 1 Jan 2000"
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(let ((tm (gmtime 0)))
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(set-tm:hour tm 3)
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(set-tm:mday tm 1)
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(set-tm:mon tm 0)
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(set-tm:year tm 100)
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(let ((tm (cdr (mktime tm "AST-10"))))
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(eqv? (* -10 3600) (tm:gmtoff tm))))))
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;;;
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;;; strftime
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;;;
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(with-test-prefix "strftime"
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(pass-if "strftime %Z doesn't return garbage"
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(let ((t (localtime (current-time))))
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(set-tm:zone t "ZOW")
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(set-tm:isdst t 0)
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(string=? (strftime "%Z" t)
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"ZOW")))
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(with-test-prefix "C99 %z format"
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;; %z here is quite possibly affected by the same tm:gmtoff vs current
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;; zone as %Z above is, so in the following tests we make them the same.
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(pass-if "GMT"
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(putenv "TZ=GMT+0")
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(tzset)
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(let ((tm (localtime 86400)))
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(string=? "+0000" (strftime "%z" tm))))
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;; prior to guile 1.6.9 and 1.8.1 this test failed, getting "+0500",
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;; because we didn't adjust for tm:gmtoff being west of Greenwich versus
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;; tm_gmtoff being east of Greenwich
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(pass-if "EST+5"
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(putenv "TZ=EST+5")
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(tzset)
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(let ((tm (localtime 86400)))
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(string=? "-0500" (strftime "%z" tm))))))
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;;;
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;;; strptime
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;;;
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(with-test-prefix "strptime"
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(pass-if "in another thread after error"
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(or (defined? 'strptime) (throw 'unsupported))
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(or (provided? 'threads) (throw 'unsupported))
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(alarm 5)
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(false-if-exception
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(strptime "%a" "nosuchday"))
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(join-thread (begin-thread (strptime "%d" "1")))
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(alarm 0)
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#t)
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(with-test-prefix "GNU %s format"
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;; "%s" to parse a count of seconds since 1970 is a GNU extension
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(define have-strptime-%s
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(false-if-exception (strptime "%s" "0")))
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(pass-if "gmtoff on GMT"
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(or have-strptime-%s (throw 'unsupported))
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(putenv "TZ=GMT+0")
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(tzset)
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(let ((tm (car (strptime "%s" "86400"))))
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(eqv? 0 (tm:gmtoff tm))))
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;; prior to guile 1.6.9 and 1.8.1 we didn't pass tm_gmtoff back from
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;; strptime
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(pass-if "gmtoff on EST+5"
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(or have-strptime-%s (throw 'unsupported))
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(putenv "TZ=EST+5")
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(tzset)
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(let ((tm (car (strptime "%s" "86400"))))
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(eqv? (* 5 3600) (tm:gmtoff tm))))))
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