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;;; Commentary:
;; Tests that all ordering predicates for dates,
;; times, and datetimes hold.
;;; Code:
(define-module (test datetime-compare)
:use-module (srfi srfi-64)
:use-module (srfi srfi-88)
:use-module ((datetime)
:select (date datetime
time
date<
date<=
date>
date>=
date/-time<
time<)))
(test-assert "date< empty" (date<))
(test-assert
"date< single"
(date< #2020-01-10))
(test-assert
"date< double"
(date< #2020-01-10
#2020-01-11))
(test-assert
"date< tripple"
(date< #2020-01-10
#2020-01-11
#2020-01-12))
(test-assert
"date< tripple negate"
(not (date< #2020-01-10
#2020-01-12
#2020-01-11)))
(test-assert "date<= empty" (date<=))
(test-assert
"date<= single"
(date<= #2020-01-10))
(test-assert
"date<= double"
(date<=
#2020-01-10
#2020-01-11))
(test-assert
"date<="
(not (date<=
#2020-01-01
#2018-05-15
#2020-01-31)))
(test-assert
"date<= equal"
(date<=
#2018-05-15
#2018-05-15))
(test-assert
"date<"
(not (date< #2020-01-01
#2018-05-15
#2020-01-31)))
(test-assert
"date>"
(not (date> #2020-01-31
#2018-05-15
#2020-01-01)))
(test-assert
"date>="
(not (date>=
#2020-01-31
#2018-05-15
#2020-01-01)))
(test-assert
"time< simple"
(time< #05:00:00
#10:00:00))
(test-assert
"time<"
(time< (time)
#10:00:00))
(test-assert
"date/-time<"
(date/-time<
#2020-01-01
#2020-01-02))
(test-assert
"not date/-time<"
(not (date/-time<
#2020-01-01
#2020-01-01)))
(test-assert
"date/-time< only other dt"
(date/-time<
#2020-01-01
#2020-01-02T10:00:00))
(test-assert
"date/-time< other dt, same date"
(date/-time<
#2020-01-01
#2020-01-01T10:00:00))
;; In UTC+2 (CEST) the below datetime overflows into midnight the following
;; day. Earlier versions of this program only looked at the time component
(test-assert
"date/-time< TZ overflow"
(date/-time<
#2020-04-05
(datetime
date:
#2020-04-05
time:
#22:00:00
tz:
"UTC")))
(test-assert
"date/-time< time-only"
(date/-time<
#00:00:00
#10:00:00))
(test-assert
(not (date/-time<
#2018-11-30T08:10:00
#2014-04-13T16:00:00)))
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