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(localtime, mktime, strptime): More tests.
This commit is contained in:
Kevin Ryde
parent
f4a7e48e14
commit
0ad95e9ab8
1 changed files with 199 additions and 22 deletions
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@ -73,18 +73,143 @@
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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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;; Note we must force isdst to get the ZOW zone name out of %Z on HP-UX.
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;; If localtime is in daylight savings then it will decide there's no
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;; daylight savings zone name for the fake ZOW, and come back empty.
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;;
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;; This test is disabled because on NetBSD %Z doesn't look at the tm_zone
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;; field in struct tm passed by guile. That behaviour is reasonable enough
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;; since that field is not in C99 so a C99 program won't know it has to be
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;; set. For the details on that see
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;; field in struct tm passed by guile. That behaviour is reasonable
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;; enough since that field is not in C99 so a C99 program won't know it
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;; has to be set. For the details on that see
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;;
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;; http://www.netbsd.org/cgi-bin/query-pr-single.pl?number=21722
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;;
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@ -99,6 +224,37 @@
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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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;; C99 spec is empty string if no zone determinable
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;;
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;; on pre-C99 systems not sure what to expect if %z unsupported, probably
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;; "%z" unchanged in C99 if timezone
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;;
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(define have-strftime-%z
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(not (member (strftime "%z" (gmtime 0))
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'("" "%z"))))
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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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(or have-strftime-%z (throw 'unsupported))
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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 1.8.1 this test failed, getting "+0500", because we
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;; didn't adjust for tm:gmtoff being west of Greenwich versus tm_gmtoff
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;; being east of Greenwich
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(pass-if "EST+5"
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(or have-strftime-%z (throw 'unsupported))
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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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@ -120,4 +276,25 @@
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(strptime "%a" "nosuchday"))
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(thread-join (begin-thread (strptime "%d" "1")))
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(alarm 0)
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#t))
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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 1.8.1 we didn't pass tm_gmtoff back from 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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