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;;; time-date-tests.el --- tests for calendar/time-date.el -*- lexical-binding:t -*-
;; Copyright (C) 2019-2025 Free Software Foundation, Inc.
;; This file is part of GNU Emacs.
;; GNU Emacs is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; GNU Emacs 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 General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
;;; Code:
(require 'ert)
(require 'time-date)
(ert-deftest test-obsolete-with-decoded-time-value ()
(with-suppressed-warnings ((obsolete with-decoded-time-value))
(with-decoded-time-value ((high low micro pico type '(1 2 3 4 5 6 8 8)))
(should (equal (list high low micro pico type) '(1 2 3 4 3))))))
(ert-deftest test-obsolete-encode-time-value ()
(should (equal (with-suppressed-warnings ((obsolete encode-time-value))
(encode-time-value 1 2 3 4 0))
'(1 . 2)))
(should (equal (with-suppressed-warnings ((obsolete encode-time-value))
(encode-time-value 1 2 3 4 1))
'(1 2)))
(should (equal (with-suppressed-warnings ((obsolete encode-time-value))
(encode-time-value 1 2 3 4 2))
'(1 2 3)))
(should (equal (with-suppressed-warnings ((obsolete encode-time-value))
(encode-time-value 1 2 3 4 3))
'(1 2 3 4))))
(ert-deftest test-date-to-time ()
(should (equal (format-time-string "%F %T" (date-to-time "2021-12-04"))
"2021-12-04 00:00:00")))
(ert-deftest test-days-between ()
(should (equal (days-between "2021-10-22" "2020-09-29") 388)))
(ert-deftest test-leap-year ()
(should-not (date-leap-year-p 1999))
(should-not (date-leap-year-p 1900))
(should (date-leap-year-p 2000))
(should (date-leap-year-p 2004)))
(ert-deftest test-days-to-time ()
(should (time-equal-p (days-to-time 0) '(0 0)))
(should (time-equal-p (days-to-time 1) '(1 20864)))
(should (time-equal-p (days-to-time 999) '(1317 2688)))
(should (time-equal-p (days-to-time 0.0) '(0 0 0 0)))
(should (time-equal-p (days-to-time 0.5) '(0 43200 0 0)))
(should (time-equal-p (days-to-time 1.0) '(1 20864 0 0)))
(should (time-equal-p (days-to-time 999.0) '(1317 2688 0 0))))
(ert-deftest test-seconds-to-string ()
(should (equal (seconds-to-string 0) "0s"))
(should (equal (seconds-to-string 9) "9.00s"))
(should (equal (seconds-to-string 99) "99.00s"))
(should (equal (seconds-to-string 999) "16.65m"))
(should (equal (seconds-to-string 9999) "2.78h"))
(should (equal (seconds-to-string 99999) "27.78h"))
(should (equal (seconds-to-string 999999) "11.57d"))
(should (equal (seconds-to-string 9999999) "115.74d"))
(should (equal (seconds-to-string 99999999) "3.17y"))
(should (equal (seconds-to-string 999999999) "31.69y")))
(ert-deftest test-days-in-month ()
(should (= (date-days-in-month 2004 2) 29))
(should (= (date-days-in-month 2004 3) 31))
(should (= (date-days-in-month 2019 2) 28))
(should (= (date-days-in-month 2020 12) 31))
(should-not (= (date-days-in-month 1900 3) 28))
(should-error (date-days-in-month 2020 0))
(should-error (date-days-in-month 2020 15))
(should-error (date-days-in-month 2020 'foo)))
(ert-deftest test-format-seconds ()
(should (equal (format-seconds "%y %d %h %m %s %%" 0) "0 0 0 0 0 %"))
(should (equal (format-seconds "%y %d %h %m %s %%" 9999999) "0 115 17 46 39 %"))
(should (equal (format-seconds "%y %d %h %m %z %s %%" 1) "1 %"))
(should (equal (format-seconds "%mm %ss" 66) "1m 6s"))
(should (equal (format-seconds "%mm %5ss" 66) "1m 6s"))
(should (equal (format-seconds "%mm %.5ss" 66.4) "1m 00006s"))
(should (equal (format-seconds "%mm %,1ss" 66.4) "1m 6.4s"))
(should (equal (format-seconds "%mm %5,1ss" 66.4) "1m 6.4s"))
(should (equal (format-seconds "%mm %.5,1ss" 66.4) "1m 006.4s"))
(should (equal (format-seconds "%hh %z%x%mm %ss" (* 60 2)) "2m"))
(should (equal (format-seconds "%hh %z%mm %ss" (* 60 2)) "2m 0s"))
(should (equal (format-seconds "%hh %x%mm %ss" (* 60 2)) "0h 2m"))
(should (equal (format-seconds "%hh %x%mm %ss" 0) "0h 0m 0s"))
;; Bug#70322
(should (equal (format-seconds "%y %z%d %h %m %s %%" 9999999) "115 17 46 39 %"))
(should (equal (format-seconds "%Y, %D, %H, %M, %z%S" 0) "0 seconds")))
(ert-deftest test-ordinal ()
(should (equal (date-ordinal-to-time 2008 271)
'(nil nil nil 27 9 2008 nil nil nil)))
(should (equal (date-ordinal-to-time 2008 1)
'(nil nil nil 1 1 2008 nil nil nil)))
(should (equal (date-ordinal-to-time 2008 32)
'(nil nil nil 1 2 2008 nil nil nil)))
(should (equal (date-ordinal-to-time 1981 095)
'(nil nil nil 5 4 1981 nil nil nil))))
(cl-defmethod mdec (&key second minute hour
day month year
dst zone)
(list second minute hour day month year nil dst zone))
(ert-deftest test-decoded-add ()
(let ((time '(12 15 16 8 7 2019 1 t 7200)))
(should (equal (decoded-time-add time (mdec :year 1))
'(12 15 16 8 7 2020 1 t 7200)))
(should (equal (decoded-time-add time (mdec :year -2))
'(12 15 16 8 7 2017 1 t 7200)))
(should (equal (decoded-time-add time (mdec :month 1))
'(12 15 16 8 8 2019 1 t 7200)))
(should (equal (decoded-time-add time (mdec :month 10))
'(12 15 16 8 5 2020 1 t 7200)))
(should (equal (decoded-time-add time (mdec :day 1))
'(12 15 16 9 7 2019 1 t 7200)))
(should (equal (decoded-time-add time (mdec :day -1))
'(12 15 16 7 7 2019 1 t 7200)))
(should (equal (decoded-time-add time (mdec :day 30))
'(12 15 16 7 8 2019 1 t 7200)))
(should (equal (decoded-time-add time (mdec :day -365))
'(12 15 16 8 7 2018 1 t 7200)))
(should (equal (decoded-time-add time (mdec :day 365))
'(12 15 16 7 7 2020 1 t 7200)))
;; 2020 is a leap year.
(should (equal (decoded-time-add time (mdec :day 366))
'(12 15 16 8 7 2020 1 t 7200)))
(should (equal (decoded-time-add time (mdec :second 1))
'(13 15 16 8 7 2019 1 t 7200)))
(should (equal (decoded-time-add time (mdec :second -1))
'(11 15 16 8 7 2019 1 t 7200)))
(should (equal (decoded-time-add time (mdec :second 61))
'(13 16 16 8 7 2019 1 t 7200)))
(should (equal (decoded-time-add time (mdec :hour 1 :minute 2 :second 3))
'(15 17 17 8 7 2019 1 t 7200)))
(should (equal (decoded-time-add time (mdec :hour 24))
'(12 15 16 9 7 2019 1 t 7200)))
))
(ert-deftest test-decoded-add-zone ()
(let ((time '(12 15 16 8 7 2019 1 t 7200)))
(should (equal (decoded-time-add time (mdec :zone -3600))
'(12 15 15 8 7 2019 1 t 7200)))
(should (equal (decoded-time-add time (mdec :zone -7200))
'(12 15 14 8 7 2019 1 t 7200)))))
(ert-deftest test-time-since ()
(should (time-equal-p 0 (time-since nil)))
(should (time-equal-p 1 (time-convert (time-since (time-subtract nil 1))
'integer))))
(ert-deftest test-time-decoded-period ()
(should (equal (decoded-time-period '(nil nil 1 nil nil nil nil nil nil))
3600))
(should (equal (decoded-time-period '(1 0 0 0 0 0 nil nil nil)) 1))
(should (equal (decoded-time-period '(0 1 0 0 0 0 nil nil nil)) 60))
(should (equal (decoded-time-period '(0 0 1 0 0 0 nil nil nil)) 3600))
(should (equal (decoded-time-period '(0 0 0 1 0 0 nil nil nil)) 86400))
(should (equal (decoded-time-period '(0 0 0 0 1 0 nil nil nil)) 2592000))
(should (equal (decoded-time-period '(0 0 0 0 0 1 nil nil nil)) 31536000))
(should (equal (decoded-time-period '(1 2 3 4 5 6 nil nil nil)) 202532521))
(should (equal (decoded-time-period '((135 . 10) 0 0 0 0 0 nil nil nil))
13.5)))
(ert-deftest test-time-wrap-addition ()
(should (equal (decoded-time-add '(0 0 0 1 11 2008 nil nil nil)
(make-decoded-time :month 1))
'(0 0 0 1 12 2008 nil nil nil)))
(should (equal (decoded-time-add '(0 0 0 1 12 2008 nil nil nil)
(make-decoded-time :month 1))
'(0 0 0 1 1 2009 nil nil nil)))
(should (equal (decoded-time-add '(0 0 0 1 11 2008 nil nil nil)
(make-decoded-time :month 12))
'(0 0 0 1 11 2009 nil nil nil)))
(should (equal (decoded-time-add '(0 0 0 1 11 2008 nil nil nil)
(make-decoded-time :month 13))
'(0 0 0 1 12 2009 nil nil nil)))
(should (equal (decoded-time-add '(0 0 0 30 12 2008 nil nil nil)
(make-decoded-time :day 1))
'(0 0 0 31 12 2008 nil nil nil)))
(should (equal (decoded-time-add '(0 0 0 30 12 2008 nil nil nil)
(make-decoded-time :day 2))
'(0 0 0 1 1 2009 nil nil nil))))
;;; time-date-tests.el ends here
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