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;;; ietf-drums-date-tests.el --- Test suite for ietf-drums-date.el -*- lexical-binding:t -*-
;; Copyright (C) 2022-2025 Free Software Foundation, Inc.
;; Author: Bob Rogers <rogers@rgrjr.com>
;; 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/>.
;;; Commentary:
;;; Code:
(require 'ert)
(require 'ietf-drums)
(require 'ietf-drums-date)
(ert-deftest ietf-drums-date-tests ()
"Test basic ietf-drums-parse-date-string functionality."
;; Test tokenization.
(should (equal (ietf-drums-date--tokenize-string " ") '()))
(should (equal (ietf-drums-date--tokenize-string " a b") '("a" "b")))
(should (equal (ietf-drums-date--tokenize-string "a bbc dde")
'("a" "bbc" "dde")))
(should (equal (ietf-drums-date--tokenize-string " , a 27 b,, c 14:32 ")
'("a" 27 "b" "c" "14:32")))
;; Some folding whitespace tests.
(should (equal (ietf-drums-date--tokenize-string " a b (end) c" t)
'("a" "b")))
(should (equal (ietf-drums-date--tokenize-string "(quux)a (foo (bar)) b(baz)")
'("a" "b")))
(should (equal (ietf-drums-date--tokenize-string "a b\\cde")
;; Strictly incorrect, but strictly unnecessary syntax.
'("a" "b\\cde")))
(should (equal (ietf-drums-date--tokenize-string "a b\\ de")
'("a" "b\\ de")))
(should (equal (ietf-drums-date--tokenize-string "a \\de \\(f")
'("a" "\\de" "\\(f")))
;; Start with some compatible RFC822 dates.
(dolist (case '(("Mon, 22 Feb 2016 19:35:42 +0100"
(42 35 19 22 2 2016 1 -1 3600))
("22 Feb 2016 19:35:42 +0100"
(42 35 19 22 2 2016 nil -1 3600))
("Mon, 22 February 2016 19:35:42 +0100"
(42 35 19 22 2 2016 1 -1 3600))
("Mon, 22 feb 2016 19:35:42 +0100"
(42 35 19 22 2 2016 1 -1 3600))
("Monday, 22 february 2016 19:35:42 +0100"
(42 35 19 22 2 2016 1 -1 3600))
("Monday, 22 february 2016 19:35:42 PST"
(42 35 19 22 2 2016 1 nil -28800))
("Friday, 21 Sep 2018 13:47:58 PDT"
(58 47 13 21 9 2018 5 t -25200))
("Friday, 21 Sep 2018 13:47:58 EDT"
(58 47 13 21 9 2018 5 t -14400))
("Mon, 22 Feb 2016 19:35:42"
(42 35 19 22 2 2016 1 -1 nil))
("Friday, 21 Sep 2018 13:47:58"
(58 47 13 21 9 2018 5 -1 nil))))
(let* ((input (car case))
(parsed (cadr case)))
;; The input should parse the same without RFC822.
(should (equal (ietf-drums-parse-date-string input) parsed))
(should (equal (ietf-drums-parse-date-string input nil t) parsed))
;; Check the encoded date (the official output, though the
;; decoded-time is easier to debug).
(should (time-equal-p (ietf-drums-parse-date input)
(encode-time parsed)))))
;; Two-digit years are not allowed by the "modern" format.
(should (equal (ietf-drums-parse-date-string "22 Feb 16 19:35:42 +0100")
'(42 35 19 22 2 2016 nil -1 3600)))
(should (equal (ietf-drums-parse-date-string "22 Feb 16 19:35:42 +0100" nil t)
'(nil nil nil 22 2 nil nil -1 nil)))
(should (equal (should-error (ietf-drums-parse-date-string
"22 Feb 16 19:35:42 +0100" t t))
'(date-parse-error "Four-digit years are required" 16)))
(should (equal (ietf-drums-parse-date-string "22 Feb 96 19:35:42 +0100")
'(42 35 19 22 2 1996 nil -1 3600)))
(should (equal (ietf-drums-parse-date-string "22 Feb 96 19:35:42 +0100" nil t)
'(nil nil nil 22 2 nil nil -1 nil)))
(should (equal (should-error (ietf-drums-parse-date-string
"22 Feb 96 19:35:42 +0100" t t))
'(date-parse-error "Four-digit years are required" 96)))
;; Try some dates with comments.
(should (equal (ietf-drums-parse-date-string
"22 Feb (today) 16 19:35:42 +0100")
'(42 35 19 22 2 2016 nil -1 3600)))
(should (equal (ietf-drums-parse-date-string
"22 Feb (today) 16 19:35:42 +0100" nil t)
'(nil nil nil 22 2 nil nil -1 nil)))
(should (equal (should-error (ietf-drums-parse-date-string
"22 Feb (today) 16 19:35:42 +0100" t t))
'(date-parse-error "Expected a year" nil)))
(should (equal (ietf-drums-parse-date-string
"22 Feb 96 (long ago) 19:35:42 +0100")
'(42 35 19 22 2 1996 nil -1 3600)))
(should (equal (ietf-drums-parse-date-string
"Friday, 21 Sep(comment \\) with \\( parens)18 19:35:42")
'(42 35 19 21 9 2018 5 -1 nil)))
(should (equal (ietf-drums-parse-date-string
"Friday, 21 Sep 18 19:35:42 (unterminated comment")
'(42 35 19 21 9 2018 5 -1 nil)))
;; Test some RFC822 error cases
(dolist (test '(("33 1 2022" ("Slot out of range" day 33 1 31))
("0 1 2022" ("Slot out of range" day 0 1 31))
("1 1 2020 2021" ("Expected an alphabetic month" 1))
("1 Jan 2020 2021" ("Expected a time" 2021))
("1 Jan 2020 20:21 2000" ("Expected a timezone" 2000))
("1 Jan 2020 20:21 +0200 33" ("Extra token(s)" 33))))
(should (equal (should-error (ietf-drums-parse-date-string (car test) t))
(cons 'date-parse-error (cadr test)))))
(dolist (test '(("22 Feb 196" nil ;; bad year
("Four-digit years are required" 196))
("22 Feb 16 19:35:24" t ;; two-digit year
("Four-digit years are required" 16))
("22 Feb 96 19:35:42" t ;; two-digit year
("Four-digit years are required" 96))
("2 Feb 2021 1996" nil
("Expected a time" 1996))
("22 Fub 1996" nil
("Expected an alphabetic month" "fub"))
("1 Jan 2020 30" nil
("Expected a time" 30))
("1 Jan 2020 16:47 15:15" nil
("Expected a timezone" "15:15"))
("1 Jan 2020 16:47 +0800 -0800" t
("Extra token(s)" "-0800"))
;; Range tests
("32 Dec 2021" nil
("Slot out of range" day 32 1 31))
("0 Dec 2021" nil
("Slot out of range" day 0 1 31))
("3 13 2021" nil
("Expected an alphabetic month" 13))
("3 Dec 0000" t
("Four-digit years are required" 0))
("3 Dec 20021" nil
("Slot out of range" year 20021 1 9999))
("1 Jan 2020 24:21:14" nil
("Slot out of range" hour "24:21:14" 0 23))
("1 Jan 2020 14:60:21" nil
("Slot out of range" minute "14:60:21" 0 59))
("1 Jan 2020 14:21:61" nil
("Slot out of range" second "14:21:61" 0 60))))
(should (equal (should-error
(ietf-drums-parse-date-string (car test) t (cadr test)))
(cons 'date-parse-error (caddr test)))))
(should (equal (ietf-drums-parse-date-string
"1 Jan 2020 14:21:60") ;; a leap second!
'(60 21 14 1 1 2020 nil -1 nil))))
(provide 'ietf-drums-date-tests)
;;; ietf-drums-date-tests.el ends here
|
