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;;; gnus-util-tests.el --- Selectived tests only. -*- lexical-binding:t -*-
;; Copyright (C) 2015-2021 Free Software Foundation, Inc.
;; Author: Jens Lechtenbörger <jens.lechtenboerger@fsfe.org>
;; 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 'gnus-util)
(ert-deftest gnus-string> ()
;; Failure paths
(should-error (gnus-string> "" 1)
:type 'wrong-type-argument)
(should-error (gnus-string> "")
:type 'wrong-number-of-arguments)
;; String tests
(should (gnus-string> "def" "abc"))
(should (gnus-string> 'def 'abc))
(should (gnus-string> "abc" "DEF"))
(should (gnus-string> "abc" 'DEF))
(should (gnus-string> "αβγ" "abc"))
(should (gnus-string> "אבג" "αβγ"))
(should (gnus-string> nil ""))
(should (gnus-string> "abc" ""))
(should (gnus-string> "abc" "ab"))
(should-not (gnus-string> "abc" "abc"))
(should-not (gnus-string> "abc" "def"))
(should-not (gnus-string> "DEF" "abc"))
(should-not (gnus-string> 'DEF "abc"))
(should-not (gnus-string> "123" "abc"))
(should-not (gnus-string> "" "")))
(ert-deftest gnus-string< ()
;; Failure paths
(should-error (gnus-string< "" 1)
:type 'wrong-type-argument)
(should-error (gnus-string< "")
:type 'wrong-number-of-arguments)
;; String tests
(setq case-fold-search nil)
(should (gnus-string< "abc" "def"))
(should (gnus-string< 'abc 'def))
(should (gnus-string< "DEF" "abc"))
(should (gnus-string< "DEF" 'abc))
(should (gnus-string< "abc" "αβγ"))
(should (gnus-string< "αβγ" "אבג"))
(should (gnus-string< "" nil))
(should (gnus-string< "" "abc"))
(should (gnus-string< "ab" "abc"))
(should-not (gnus-string< "abc" "abc"))
(should-not (gnus-string< "def" "abc"))
(should-not (gnus-string< "abc" "DEF"))
(should-not (gnus-string< "abc" 'DEF))
(should-not (gnus-string< "abc" "123"))
(should-not (gnus-string< "" ""))
;; gnus-string< checks case-fold-search
(setq case-fold-search t)
(should (gnus-string< "abc" "DEF"))
(should (gnus-string< "abc" 'GHI))
(should (gnus-string< 'abc "DEF"))
(should (gnus-string< 'GHI 'JKL))
(should (gnus-string< "abc" "ΑΒΓ"))
(should-not (gnus-string< "ABC" "abc"))
(should-not (gnus-string< "def" "ABC")))
(ert-deftest gnus-subsetp ()
;; False for non-lists.
(should-not (gnus-subsetp "1" "1"))
(should-not (gnus-subsetp "1" '("1")))
(should-not (gnus-subsetp '("1") "1"))
;; Real tests.
(should (gnus-subsetp '() '()))
(should (gnus-subsetp '() '("1")))
(should (gnus-subsetp '("1") '("1")))
(should (gnus-subsetp '(42) '("1" 42)))
(should (gnus-subsetp '(42) '(42 "1")))
(should (gnus-subsetp '(42) '("1" 42 2)))
(should-not (gnus-subsetp '("1") '()))
(should-not (gnus-subsetp '("1") '(2)))
(should-not (gnus-subsetp '("1" 2) '(2)))
(should-not (gnus-subsetp '(2 "1") '(2)))
(should-not (gnus-subsetp '("1" 2) '(2 3)))
;; Duplicates don't matter for sets.
(should (gnus-subsetp '("1" "1") '("1")))
(should (gnus-subsetp '("1" 2 "1") '(2 "1")))
(should (gnus-subsetp '("1" 2 "1") '(2 "1" "1" 2)))
(should-not (gnus-subsetp '("1" 2 "1" 3) '(2 "1" "1" 2))))
(ert-deftest gnus-setdiff ()
;; False for non-lists.
(should-not (gnus-setdiff "1" "1"))
(should-not (gnus-setdiff "1" '()))
(should-not (gnus-setdiff '() "1"))
;; Real tests.
(should-not (gnus-setdiff '() '()))
(should-not (gnus-setdiff '() '("1")))
(should-not (gnus-setdiff '("1") '("1")))
(should (equal '("1") (gnus-setdiff '("1") '())))
(should (equal '("1") (gnus-setdiff '("1") '(2))))
(should (equal '("1") (gnus-setdiff '("1" 2) '(2))))
(should (equal '("1") (gnus-setdiff '("1" 2 3) '(3 2))))
(should (equal '("1") (gnus-setdiff '(2 "1" 3) '(3 2))))
(should (equal '("1") (gnus-setdiff '(2 3 "1") '(3 2))))
(should (equal '(2 "1") (gnus-setdiff '(2 3 "1") '(3))))
;; Duplicates aren't touched for sets if they are not removed.
(should-not (gnus-setdiff '("1" "1") '("1")))
(should (equal '("1") (gnus-setdiff '(2 "1" 2) '(2))))
(should (equal '("1" "1") (gnus-setdiff '(2 "1" 2 "1") '(2)))))
;;; gnustest-gnus-util.el ends here
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