;;;; srfi-19.test --- test suite for SRFI-19 -*- scheme -*- ;;;; Matthias Koeppe --- June 2001 ;;;; ;;;; Copyright (C) 2001, 2003, 2004, 2005, 2006, 2007, 2008, ;;;; 2011, 2014 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 ;; SRFI-19 overrides current-date, so we have to do the test in a ;; separate module, or later tests will fail. (define-module (test-suite test-srfi-19) :duplicates (last) ;; avoid warning about srfi-19 replacing `current-time' :use-module (test-suite lib) :use-module (srfi srfi-19) :use-module (ice-9 format)) ;; Make sure we use the default locale. (when (defined? 'setlocale) (setlocale LC_ALL "C")) (define (with-tz* tz thunk) "Temporarily set the TZ environment variable to the passed string value and call THUNK." (let ((old-tz #f)) (dynamic-wind (lambda () (set! old-tz (getenv "TZ")) (putenv (format #f "TZ=~A" tz))) thunk (lambda () (if old-tz (putenv (format #f "TZ=~A" old-tz)) (putenv "TZ")))))) (defmacro with-tz (tz . body) `(with-tz* ,tz (lambda () ,@body))) (define (test-integral-time-structure date->time) "Test whether the given DATE->TIME procedure creates a time structure with integral seconds. (The seconds shall be maintained as integers, or precision may go away silently. The SRFI-19 reference implementation was not OK for Guile in this respect because of Guile's incomplete numerical tower implementation.)" (pass-if (format #f "~A makes integer seconds" date->time) (exact? (time-second (date->time (make-date 0 0 0 12 1 6 2001 0)))))) (define (test-time->date time->date date->time) (pass-if (format #f "~A works" time->date) (begin (time->date (date->time (make-date 0 0 0 12 1 6 2001 0))) #t))) (define (test-dst time->date date->time) (pass-if (format #f "~A respects local DST if no TZ-OFFSET given" time->date) (let ((time (date->time (make-date 0 0 0 12 1 6 2001 0)))) ;; on 2001-06-01, there should be 4 hours zone offset ;; between EST (EDT) and GMT (= (date-zone-offset (with-tz "EST5EDT" (time->date time))) -14400)))) (define-macro (test-time-conversion a b) (let* ((a->b-sym (symbol-append a '-> b)) (b->a-sym (symbol-append b '-> a))) `(pass-if (format #f "~A and ~A work and are inverses of each other" ',a->b-sym ',b->a-sym) (let ((time (make-time ,a 12345 67890123))) (time=? time (,b->a-sym (,a->b-sym time))))))) (define (test-time-comparison cmp a b) (pass-if (format #f "~A works" cmp) (cmp a b))) (define (test-time-arithmetic op a b res) (pass-if (format #f "~A works" op) (time=? (op a b) res))) ;; return true if time objects X and Y are equal (define (time-equal? x y) (and (eq? (time-type x) (time-type y)) (eqv? (time-second x) (time-second y)) (eqv? (time-nanosecond x) (time-nanosecond y)))) (with-test-prefix "SRFI date/time library" ;; check for typos and silly errors (pass-if "date-zone-offset is defined" (and (defined? 'date-zone-offset) date-zone-offset #t)) (pass-if "add-duration is defined" (and (defined? 'add-duration) add-duration #t)) (pass-if "(current-time time-tai) works" (time? (current-time time-tai))) (pass-if "(current-time time-process) works" (time? (current-time time-process))) (test-time-conversion time-utc time-tai) (test-time-conversion time-utc time-monotonic) (test-time-conversion time-tai time-monotonic) (pass-if "string->date works" (begin (string->date "2001-06-01@14:00" "~Y-~m-~d@~H:~M") #t)) ;; check for code paths where reals were passed to quotient, which ;; doesn't work in Guile (and is unspecified in R5RS) (test-time->date time-utc->date date->time-utc) (test-time->date time-tai->date date->time-tai) (test-time->date time-monotonic->date date->time-monotonic) (pass-if "Fractional nanoseconds are handled" (begin (make-time time-duration 1000000000.5 0) #t)) ;; the seconds in a time shall be maintained as integers, or ;; precision may silently go away (test-integral-time-structure date->time-utc) (test-integral-time-structure date->time-tai) (test-integral-time-structure date->time-monotonic) ;; check for DST and zone related problems (pass-if "date->time-utc is the inverse of time-utc->date" (let ((time (date->time-utc (make-date 0 0 0 14 1 6 2001 7200)))) (time=? time (date->time-utc (time-utc->date time 7200))))) (test-dst time-utc->date date->time-utc) (test-dst time-tai->date date->time-tai) (test-dst time-monotonic->date date->time-monotonic) (test-dst julian-day->date date->julian-day) (test-dst modified-julian-day->date date->modified-julian-day) (pass-if "`date->julian-day' honors timezone" (let ((now (current-date -14400))) (time=? (date->time-utc (julian-day->date (date->julian-day now))) (date->time-utc now)))) (pass-if "string->date respects local DST if no time zone is read" (time=? (date->time-utc (with-tz "EST5EDT" (string->date "2001-06-01@08:00" "~Y-~m-~d@~H:~M"))) (date->time-utc (make-date 0 0 0 12 1 6 2001 0)))) (pass-if "string->date understands days and months" (time=? (let ((d (string->date "Saturday, December 9, 2006" "~A, ~B ~d, ~Y"))) (date->time-utc (make-date (date-nanosecond d) (date-second d) (date-minute d) (date-hour d) (date-day d) (date-month d) (date-year d) 0))) (date->time-utc (make-date 0 0 0 0 9 12 2006 0)))) (pass-if "string->date works on Sunday" ;; `string->date' never rests! (let* ((str "Sun, 05 Jun 2005 18:33:00 +0200") (date (string->date str "~a, ~d ~b ~Y ~H:~M:~S ~z"))) (equal? "Sun Jun 05 18:33:00+0200 2005" (date->string date)))) ;; check time comparison procedures (let* ((time1 (make-time time-monotonic 0 0)) (time2 (make-time time-monotonic 0 0)) (time3 (make-time time-monotonic 385907 998360432)) (time4 (make-time time-monotonic 385907 998360432))) (test-time-comparison time<=? time1 time3) (test-time-comparison time=? time3 time3) (test-time-comparison time>? time3 time2)) ;; check time arithmetic procedures (let* ((time1 (make-time time-monotonic 0 0)) (time2 (make-time time-monotonic 385907 998360432)) (diff (time-difference time2 time1))) (test-time-arithmetic add-duration time1 diff time2) (test-time-arithmetic subtract-duration time2 diff time1)) (with-test-prefix "date->time-tai" ;; leap second 1 Jan 1999, 1 second of UTC in make-date is out as 2 ;; seconds of TAI in date->time-tai (pass-if "31dec98 23:59:59" (time-equal? (make-time time-tai 0 915148830) (date->time-tai (make-date 0 59 59 23 31 12 1998 0)))) (pass-if "1jan99 0:00:00" (time-equal? (make-time time-tai 0 915148832) (date->time-tai (make-date 0 0 0 0 1 1 1999 0)))) ;; leap second 1 Jan 2006, 1 second of UTC in make-date is out as 2 ;; seconds of TAI in date->time-tai (pass-if "31dec05 23:59:59" (time-equal? (make-time time-tai 0 1136073631) (date->time-tai (make-date 0 59 59 23 31 12 2005 0)))) (pass-if "1jan06 0:00:00" (time-equal? (make-time time-tai 0 1136073633) (date->time-tai (make-date 0 0 0 0 1 1 2006 0))))) (with-test-prefix "date-week-number" (pass-if (= 0 (date-week-number (make-date 0 0 0 0 1 1 1984 0) 0))) (pass-if (= 0 (date-week-number (make-date 0 0 0 0 7 1 1984 0) 0))) (pass-if (= 1 (date-week-number (make-date 0 0 0 0 8 1 1984 0) 0))))) ;; Local Variables: ;; eval: (put 'with-tz 'scheme-indent-function 1) ;; End: