[bpt/guile.git] / test-suite / tests / time.test

;;;; time.test --- test suite for Guile's time functions     -*- scheme -*-
;;;; Jim Blandy <jimb@red-bean.com> --- June 1999, 2004
;;;;
;;;; 	Copyright (C) 1999, 2004, 2006, 2007, 2008 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 "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")))

  (pass-if "strftime passes wide characters"
    (let ((t (localtime (current-time))))
      (string=? (substring (strftime "\u0100%Z" t) 0 1)
                "\u0100")))

  (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 "GMT"
      (putenv "TZ=GMT+0")
      (tzset)
      (let ((tm (localtime 86400)))
	(string=? "+0000" (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 "EST+5"
      (putenv "TZ=EST+5")
      (tzset)
      (let ((tm (localtime 86400)))
	(string=? "-0500" (strftime "%z" tm))))))

;;;
;;; 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))))

    ;; 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))))))
Commit	Line	Data
90612863	1	;;;; time.test --- test suite for Guile's time functions -- scheme --
c59e0b9f	2	;;;; Jim Blandy <jimb@red-bean.com> --- June 1999, 2004
90612863	3	;;;;
69f23174	4	;;;; Copyright (C) 1999, 2004, 2006, 2007, 2008 Free Software Foundation, Inc.
90612863	5	;;;;
53befeb7 NJ	6	;;;; This library is free software; you can redistribute it and/or
	7	;;;; modify it under the terms of the GNU Lesser General Public
	8	;;;; License as published by the Free Software Foundation; either
	9	;;;; version 3 of the License, or (at your option) any later version.
90612863	10	;;;;
53befeb7	11	;;;; This library is distributed in the hope that it will be useful,
90612863	12	;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
53befeb7 NJ	13	;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
53befeb7 NJ	14	;;;; Lesser General Public License for more details.
90612863	15	;;;;
53befeb7 NJ	16	;;;; You should have received a copy of the GNU Lesser General Public
	17	;;;; License along with this library; if not, write to the Free Software
	18	;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
90612863	19
c59e0b9f KR	20	(define-module (test-suite test-time)
	21	#:use-module (test-suite lib)
	22	#:use-module (ice-9 threads))
	23
	24	;;;
	25	;;; gmtime
	26	;;;
	27
	28	(with-test-prefix "gmtime"
	29
	30	(for-each (lambda (t)
	31	(pass-if (list "in another thread after error" t)
	32	(or (provided? 'threads) (throw 'unsupported))
	33
c59e0b9f KR	34	(alarm 5)
c59e0b9f KR	35	(false-if-exception (gmtime t))
004be623 KR	36	(join-thread (begin-thread (catch #t
	37	(lambda () (gmtime t))
	38	(lambda args #f))))
c59e0b9f KR	39	(alarm 0)
	40	#t))
	41
	42	;; time values that might provoke an error from libc
	43	;; on 32-bit glibc all values (which fit) are fine
	44	;; on 64-bit glibc apparently 2^63 can overflow a 32-bit tm_year
	45	(list (1- (ash 1 31)) (1- (ash 1 63))
	46	-1 (- (ash 1 31)) (- (ash 1 63)))))
	47
	48	;;;
	49	;;; internal-time-units-per-second
	50	;;;
	51
	52	(with-test-prefix "internal-time-units-per-second"
	53
	54	;; Check that sleep 1 gives about internal-time-units-per-second worth of
	55	;; elapsed time from times:clock. This mainly ensures
	56	;; internal-time-units-per-second correctly indicates CLK_TCK units.
	57	;;
	58	(pass-if "versus times and sleep"
	59	(or (defined? 'times) (throw 'unsupported))
	60
	61	(let ((old (times)))
	62	(sleep 1)
	63	(let* ((new (times))
	64	(elapsed (- (tms:clock new) (tms:clock old))))
	65	(<= (* 0.5 internal-time-units-per-second)
	66	elapsed
	67	(* 2 internal-time-units-per-second))))))
90612863	68
8ab3d8a0 KR	69	;;;
	70	;;; localtime
	71	;;;
	72
	73	(with-test-prefix "localtime"
	74
	75	;; gmtoff is calculated with some explicit code, try to exercise that
	76	;; here, looking at cases where the localtime and gmtime are within the same
	77	;; day, or crossing midnight, or crossing new year
	78
	79	(pass-if "gmtoff of EST+5 at GMT 10:00am on 10 Jan 2000"
	80	(let ((tm (gmtime 0)))
	81	(set-tm:hour tm 10)
	82	(set-tm:mday tm 10)
	83	(set-tm:mon tm 0)
	84	(set-tm:year tm 100)
	85	(let* ((t (car (mktime tm "GMT")))
	86	(tm (localtime t "EST+5")))
	87	(eqv? (* 5 3600) (tm:gmtoff tm)))))
	88
	89	;; crossing forward over day boundary
	90	(pass-if "gmtoff of EST+5 at GMT 3am on 10 Jan 2000"
	91	(let ((tm (gmtime 0)))
	92	(set-tm:hour tm 3)
	93	(set-tm:mday tm 10)
	94	(set-tm:mon tm 0)
	95	(set-tm:year tm 100)
	96	(let* ((t (car (mktime tm "GMT")))
	97	(tm (localtime t "EST+5")))
	98	(eqv? (* 5 3600) (tm:gmtoff tm)))))
	99
	100	;; crossing backward over day boundary
	101	(pass-if "gmtoff of AST-10 at GMT 10pm on 10 Jan 2000"
	102	(let ((tm (gmtime 0)))
	103	(set-tm:hour tm 22)
	104	(set-tm:mday tm 10)
	105	(set-tm:mon tm 0)
	106	(set-tm:year tm 100)
	107	(let* ((t (car (mktime tm "GMT")))
	108	(tm (localtime t "AST-10")))
	109	(eqv? (* -10 3600) (tm:gmtoff tm)))))
	110
	111	;; crossing forward over year boundary
	112	(pass-if "gmtoff of EST+5 at GMT 3am on 1 Jan 2000"
	113	(let ((tm (gmtime 0)))
	114	(set-tm:hour tm 3)
	115	(set-tm:mday tm 1)
	116	(set-tm:mon tm 0)
	117	(set-tm:year tm 100)
	118	(let* ((t (car (mktime tm "GMT")))
	119	(tm (localtime t "EST+5")))
	120	(eqv? (* 5 3600) (tm:gmtoff tm)))))
	121
	122	;; crossing backward over day boundary
	123	(pass-if "gmtoff of AST-10 at GMT 10pm on 31 Dec 2000"
	124	(let ((tm (gmtime 0)))
	125	(set-tm:hour tm 22)
	126	(set-tm:mday tm 31)
	127	(set-tm:mon tm 11)
	128	(set-tm:year tm 100)
	129	(let* ((t (car (mktime tm "GMT")))
	130	(tm (localtime t "AST-10")))
	131	(eqv? (* -10 3600) (tm:gmtoff tm))))))
	132
133	;;;
134	;;; mktime
135	;;;
136
137	(with-test-prefix "mktime"
138
139	;; gmtoff is calculated with some explicit code, try to exercise that
140	;; here, looking at cases where the mktime and gmtime are within the same
141	;; day, or crossing midnight, or crossing new year
142
143	(pass-if "gmtoff of EST+5 at 10:00am on 10 Jan 2000"
144	(let ((tm (gmtime 0)))
145	(set-tm:hour tm 10)
146	(set-tm:mday tm 10)
147	(set-tm:mon tm 0)
148	(set-tm:year tm 100)
149	(let ((tm (cdr (mktime tm "EST+5"))))
150	(eqv? (* 5 3600) (tm:gmtoff tm)))))
151
152	;; crossing forward over day boundary
153	(pass-if "gmtoff of EST+5 at 10:00pm on 10 Jan 2000"
154	(let ((tm (gmtime 0)))
155	(set-tm:hour tm 22)
156	(set-tm:mday tm 10)
157	(set-tm:mon tm 0)
158	(set-tm:year tm 100)
159	(let ((tm (cdr (mktime tm "EST+5"))))
160	(eqv? (* 5 3600) (tm:gmtoff tm)))))
161
162	;; crossing backward over day boundary
163	(pass-if "gmtoff of AST-10 at 3:00am on 10 Jan 2000"
164	(let ((tm (gmtime 0)))
165	(set-tm:hour tm 3)
166	(set-tm:mday tm 10)
167	(set-tm:mon tm 0)
168	(set-tm:year tm 100)
169	(let ((tm (cdr (mktime tm "AST-10"))))
170	(eqv? (* -10 3600) (tm:gmtoff tm)))))
171
172	;; crossing forward over year boundary
173	(pass-if "gmtoff of EST+5 at 10:00pm on 31 Dec 2000"
174	(let ((tm (gmtime 0)))
175	(set-tm:hour tm 22)
176	(set-tm:mday tm 31)
177	(set-tm:mon tm 11)
178	(set-tm:year tm 100)
179	(let ((tm (cdr (mktime tm "EST+5"))))
180	(eqv? (* 5 3600) (tm:gmtoff tm)))))
181
182	;; crossing backward over day boundary
183	(pass-if "gmtoff of AST-10 at 3:00am on 1 Jan 2000"
184	(let ((tm (gmtime 0)))
185	(set-tm:hour tm 3)
186	(set-tm:mday tm 1)
187	(set-tm:mon tm 0)
188	(set-tm:year tm 100)
189	(let ((tm (cdr (mktime tm "AST-10"))))
190	(eqv? (* -10 3600) (tm:gmtoff tm))))))
191
feb3640d KR	192	;;;
	193	;;; strftime
	194	;;;
	195
8ab3d8a0 KR	196	(with-test-prefix "strftime"
8ab3d8a0 KR	197
69f23174 LC	198	(pass-if "strftime %Z doesn't return garbage"
	199	(let ((t (localtime (current-time))))
	200	(set-tm:zone t "ZOW")
	201	(set-tm:isdst t 0)
	202	(string=? (strftime "%Z" t)
	203	"ZOW")))
8ab3d8a0	204
587a3355 MG	205	(pass-if "strftime passes wide characters"
	206	(let ((t (localtime (current-time))))
	207	(string=? (substring (strftime "\u0100%Z" t) 0 1)
	208	"\u0100")))
	209
8ab3d8a0 KR	210	(with-test-prefix "C99 %z format"
8ab3d8a0 KR	211
8ab3d8a0 KR	212	;; %z here is quite possibly affected by the same tm:gmtoff vs current
	213	;; zone as %Z above is, so in the following tests we make them the same.
	214
	215	(pass-if "GMT"
8ab3d8a0 KR	216	(putenv "TZ=GMT+0")
	217	(tzset)
	218	(let ((tm (localtime 86400)))
	219	(string=? "+0000" (strftime "%z" tm))))
	220
	221	;; prior to guile 1.6.9 and 1.8.1 this test failed, getting "+0500",
	222	;; because we didn't adjust for tm:gmtoff being west of Greenwich versus
	223	;; tm_gmtoff being east of Greenwich
	224	(pass-if "EST+5"
8ab3d8a0 KR	225	(putenv "TZ=EST+5")
	226	(tzset)
	227	(let ((tm (localtime 86400)))
	228	(string=? "-0500" (strftime "%z" tm))))))
c59e0b9f KR	229
	230	;;;
	231	;;; strptime
	232	;;;
	233
	234	(with-test-prefix "strptime"
	235
	236	(pass-if "in another thread after error"
	237	(or (defined? 'strptime) (throw 'unsupported))
	238	(or (provided? 'threads) (throw 'unsupported))
	239
c59e0b9f KR	240	(alarm 5)
	241	(false-if-exception
	242	(strptime "%a" "nosuchday"))
8ab3d8a0	243	(join-thread (begin-thread (strptime "%d" "1")))
c59e0b9f	244	(alarm 0)
8ab3d8a0 KR	245	#t)
	246
	247	(with-test-prefix "GNU %s format"
	248
	249	;; "%s" to parse a count of seconds since 1970 is a GNU extension
	250	(define have-strptime-%s
	251	(false-if-exception (strptime "%s" "0")))
	252
	253	(pass-if "gmtoff on GMT"
	254	(or have-strptime-%s (throw 'unsupported))
	255	(putenv "TZ=GMT+0")
	256	(tzset)
	257	(let ((tm (car (strptime "%s" "86400"))))
	258	(eqv? 0 (tm:gmtoff tm))))
	259
	260	;; prior to guile 1.6.9 and 1.8.1 we didn't pass tm_gmtoff back from
	261	;; strptime
	262	(pass-if "gmtoff on EST+5"
	263	(or have-strptime-%s (throw 'unsupported))
	264	(putenv "TZ=EST+5")
	265	(tzset)
	266	(let ((tm (car (strptime "%s" "86400"))))
	267	(eqv? (* 5 3600) (tm:gmtoff tm))))))