racket/collects/tests/mzscheme/date.ss
2008-02-23 09:42:03 +00:00

47 lines
1.3 KiB
Scheme

(load-relative "loadtest.ss")
(Section 'date)
(require mzlib/date)
(define (test-find s m h d mo y)
(let* ([secs (find-seconds s m h d mo y)]
[date (seconds->date secs)])
(test #t 'same
(and (= s (date-second date))
(= m (date-minute date))
(= h (date-hour date))
(= d (date-day date))
(= mo (date-month date))
(= y (date-year date))))))
(test-find 0 0 0 1 4 1975)
(test-find 0 0 0 1 4 2005)
;; Bad dates
(err/rt-test (find-seconds 0 0 0 0 0 1990) exn:fail?)
(err/rt-test (find-seconds 0 0 0 0 1 1990) exn:fail?)
(err/rt-test (find-seconds 0 0 0 1 0 1990) exn:fail?)
;; Early/late
(unless (eq? (expt 2 40) (eq-hash-code (expt 2 40))) ; 64-bit-machine?
(err/rt-test (find-seconds 0 0 0 1 1 1490) exn:fail?)
(err/rt-test (find-seconds 0 0 0 1 1 2890) exn:fail?))
;; 1990 April 1 was start of daylight savings:
(test-find 0 0 1 1 4 1990) ; ok
(let ([s (find-seconds 1 0 3 1 4 1990)]) ; ok
(when (date-dst? (seconds->date s))
;; We have daylight savings here; 2:01 AM doesn't exist
(err/rt-test (find-seconds 0 1 2 1 4 1990) exn:fail?)
;; This date is ambiguous; find-seconds should find
;; one of the two possible values, though:
(test-find 0 30 1 27 10 1996)))
;; bug fixes
(test "JD 12" julian/scalinger->string 12)
(test "JD 123" julian/scalinger->string 123)
(report-errs)