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;;; Commentary:
;; Tests date, time, and datetime creation,
;; (output) formatting, and arithmetic.
;;; Code:
(((datetime) date+ date-
time+ time-
year month day
date time
datetime
datetime+
datetime<=?
datetime-difference
datetime-
leap-year?
string->date string->time string->datetime
parse-month
days-in-interval
)
((ice-9 format) format)
((hnh util) let*)
((ice-9 i18n) make-locale)
((guile) LC_TIME)
)
(test-equal "empty time"
(time) #00:00:00)
(test-assert "Synatx date"
#2020-01-01)
(test-assert "Test year type"
(integer? (year (date year: 2020))))
(test-assert "Test mmnth type"
(integer? (month (date month: 1))))
(test-assert "Test day type"
(integer? (day (date day: 1))))
(test-equal "Manual print (any)"
"2020-10-10"
(let ((d (date year: 2020 month: 10 day: 10)))
(format #f "~a-~a-~a"
(year d) (month d) (day d))))
(test-equal "Manual print (number)"
"2020-10-10"
(let ((d (date year: 2020 month: 10 day: 10)))
(format #f "~d-~d-~d"
(year d) (month d) (day d))))
(test-equal "Date print"
"#2020-01-01"
(format #f "~a" (date year: 2020 month: 1 day: 1)))
(test-equal "Syntax date="
(date year: 2020 month: 1 day: 1)
#2020-01-01)
(test-equal "Syntax time="
(time hour: 13 minute: 37 second: 0)
#13:37:00)
(test-equal "Syntax Datetime="
(datetime year: 2020 month: 1 day: 1 hour: 13 minute: 37 second: 0)
#2020-01-01T13:37:00)
(test-equal #2020-02-28 (date- #2020-03-05 (date day: 6)))
(test-equal #2020-02-29 (date- #2020-03-05 (date day: 5)))
(test-equal #2020-03-01 (date- #2020-03-05 (date day: 4)))
(test-equal "date+ day" #2020-10-10 (date+ #2020-10-01 (date day: 9)))
(test-equal "date+ month" #2020-10-10 (date+ #2020-01-10 (date month: 9)))
(test-equal "date+ day/month" #2020-10-10 (date+ #2020-01-01 (date day: 9 month: 9)))
;; (test-equal "date+ year" #4040-10-10 (date+ #2020-10-10 (date year: 2020)))
(test-assert "date+ first literal" (date+ #2020-01-01 (date day: 0)))
(test-assert "date+ second literal" (date+ (date year: 1 month: 1 day: 1) #0001-00-00))
(test-assert "date+ both literal" (date+ #2020-01-01 #0000-00-00))
(test-equal "date+ year overflow" #2019-01-01 (date+ #2018-12-31 (date day: 1)))
(test-equal "date- year overflow" #2018-12-31 (date- #2019-01-01 (date day: 1)))
;; (test-equal "date+ large" #4040-10-10 (date+ #2020-05-03 #2020-05-07))
(test-equal "date- large" #0001-01-01 (date- #2020-01-01 #2019-00-00))
;; Datum är spännande
(test-equal "date- equal" (date year: -1 month: 11 day: 31)
(date- #2020-01-01 #2020-01-01))
(test-equal #2020-01-01T10:00:00 (datetime date: #2020-01-01
time: #10:00:00))
(test-equal #2020-01-01T10:00:00
(datetime+ (datetime date: #2020-01-01)
(datetime time: #10:00:00)))
(test-equal
#2020-10-09T14:00:00
(datetime- #2020-10-10T00:00:00
(datetime time: #10:00:00)))
(test-equal
#2020-09-24T14:00:00
(datetime- #2020-10-10T00:00:00
#0000-00-15T10:00:00))
(test-equal #2020-03-10
(date+ #2020-03-01
(date day: 4)
(date day: 5)))
(let* ((diff overflow (time- #10:20:30 #10:20:30)))
(test-equal "time- self" #00:00:00 diff)
(test-equal "time- self overflow" 0 overflow))
(let* ((diff overflow (time- #10:00:00 #10:00:01)))
(test-equal "time- overflow 1s" #23:59:59 diff)
(test-equal "time- overflow 1s overflow" 1 overflow))
(let* ((diff overflow (time- #10:00:00 (time hour: (+ 48 4)))))
(test-equal "time- overflow multiple" #06:00:00 diff)
(test-equal "time- overflow multiple overflow" 2 overflow))
(test-equal "datetime-difference self"
#0000-00-00T00:00:00
(datetime-difference (datetime date: #2020-01-01) (datetime date: #2020-01-01)))
;; (test-assert
;; (datetime- #2018-01-17T10:00:00
;; #2018-01-17T08:00:00))
;; (test-assert
;; (datetime<=? (datetime time: (time hour: 24))
;; (datetime- #2018-01-17T10:00:00
;; #2018-01-17T08:00:00)))
;; NOTE
;; at the time of writing this returns #2020-02-00
;; The general question is, how is the last in a month handled?
(test-equal
#2020-01-31
(date+ #2019-12-31 (date month: 1)))
(test-assert (leap-year? 2020))
(test-equal "Add to Leap day"
#2020-02-29 (date+ #2020-02-28 (date day: 1)))
(test-equal "Parse ISO"
#2021-12-30T13:53:33
(string->datetime "2021-12-30T13:53:33" "~Y-~m-~dT~H:~M:~S"))
(test-equal "Parse ical date-time"
#2021-12-30T13:53:33
(string->datetime "20211230T135333" "~Y~m~dT~H~M~S"))
(test-equal "Parse single hour (padded)"
(time hour: 5)
(string->time "05" "~H"))
(test-equal "Parse single hour (non-padded)"
(time hour: 5)
(string->time "5" "~H"))
(test-equal "Parse month (swedish)"
(date month: 5)
(string->date "Maj" "~b" (make-locale LC_TIME "sv_SE.UTF-8")))
(test-equal "Parse month (english)"
(date month: 5)
(string->date "May" "~b" (make-locale LC_TIME "en_US.UTF-8")))
(test-equal "AM/PM AM"
(time hour: 10)
(string->time "10 AM" "~H ~p"))
(test-equal "AM/PM PM"
(time hour: 22)
(string->time "10 PM" "~H ~p"))
(test-equal "AM/PM AM 12"
(time hour: 0)
(string->time "12 AM" "~H ~p"))
(test-equal "AM/PM PM 12"
(time hour: 12)
(string->time "12 PM" "~H ~p"))
(test-equal "AM/PM PM (prefix)"
(time hour: 22)
(string->time "PM 10" "~p ~H"))
(test-equal "Parse complicated 1"
#2021-12-30T10:56:00
(string->datetime "Dec. 30, 2021, 10:56"
"~b. ~d, ~Y, ~H:~M"
(make-locale LC_TIME "en_US.UTF-8")))
(test-equal "Parse complicated 2"
#2021-12-30T10:56:00
(string->datetime "Dec. 30, 2021, 10:56 a.m."
"~b. ~d, ~Y, ~H:~M"
(make-locale LC_TIME "en_US.UTF-8")))
(test-equal "Parse complicated 3"
#2021-12-30T22:56:00
(string->datetime "Dec. 30, 2021, 10:56 p.m."
"~b. ~d, ~Y, ~H:~M ~p"
(make-locale LC_TIME "en_US.UTF-8")))
(test-equal "Parse date single digit day"
(date day: 6)
(string->date "6" "~d"))
(test-equal "Parse date single digit day, trailing comma"
(date day: 6)
(string->date "6," "~d,"))
(test-equal "Parse date single digit day, trailing comma + space"
(date day: 6)
(string->date "6, " "~d, "))
(define en_US (make-locale LC_TIME "en_US.UTF-8"))
(define sv_SE (make-locale LC_TIME "sv_SE.UTF-8"))
(test-equal 1 (parse-month "jan" en_US))
(test-equal 1 (parse-month "jan" sv_SE))
(test-equal 12 (parse-month "dec" en_US))
(test-equal -1 (parse-month "inv" en_US))
(test-equal 5 (parse-month "mAJ" sv_SE))
(test-equal "Days in regular year" 365 (days-in-interval #2021-01-01 #2021-12-31))
(test-equal "Days in leap year" 366 (days-in-interval #2020-01-01 #2020-12-31))
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