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;;; misc-tests.el --- Tests for misc.el -*- lexical-binding:t -*-
;; Copyright (C) 2020-2024 Free Software Foundation, Inc.
;; Author: Stefan Kangas <stefankangas@gmail.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 'misc)
(defmacro with-misc-test (original result &rest body)
(declare (indent 2))
`(with-temp-buffer
(insert ,original)
,@body
(should (equal (buffer-string) ,result))))
(ert-deftest misc-test-copy-from-above-command ()
(with-misc-test "abc\n" "abc\nabc"
(copy-from-above-command))
(with-misc-test "abc\n" "abc\nab"
(copy-from-above-command 2)))
(ert-deftest misc-test-zap-up-to-char ()
(with-misc-test "abcde" "cde"
(goto-char (point-min))
(zap-up-to-char 1 ?c))
(with-misc-test "abcde abc123" "c123"
(goto-char (point-min))
(zap-up-to-char 2 ?c))
(let ((case-fold-search t))
(with-misc-test "abcdeCXYZ" "cdeCXYZ"
(goto-char (point-min))
(zap-up-to-char 1 ?C))
(with-misc-test "abcdeCXYZ" "CXYZ"
(goto-char (point-min))
(zap-up-to-char 1 ?C 'interactive))))
(ert-deftest misc-test-upcase-char ()
(with-misc-test "abcde" "aBCDe"
(goto-char (1+ (point-min)))
(upcase-char 3)))
(ert-deftest misc-test-forward-to-word ()
(with-temp-buffer
(insert " - abc")
(goto-char (point-min))
(forward-to-word 1)
(should (equal (point) 9)))
(with-temp-buffer
(insert "a b c")
(goto-char (point-min))
(forward-to-word 3)
(should (equal (point) 6))))
(ert-deftest misc-test-backward-to-word ()
(with-temp-buffer
(insert "abc - ")
(backward-to-word 1)
(should (equal (point) 4)))
(with-temp-buffer
(insert "a b c")
(backward-to-word 3)
(should (equal (point) 1))))
(ert-deftest misc--duplicate-line ()
;; Duplicate a line (twice).
(with-temp-buffer
(insert "abc\ndefg\nh\n")
(goto-char 7)
(duplicate-line 2)
(should (equal (buffer-string) "abc\ndefg\ndefg\ndefg\nh\n"))
(should (equal (point) 7)))
;; Duplicate a line (twice) and move point to the first duplicated line.
(with-temp-buffer
(insert "abc\ndefg\nh\n")
(goto-char 7)
(let ((duplicate-line-final-position 1)) (duplicate-line 2))
(should (equal (buffer-string) "abc\ndefg\ndefg\ndefg\nh\n"))
(should (equal (point) 12)))
;; Duplicate a line (twice) and move point to the last duplicated line.
(with-temp-buffer
(insert "abc\ndefg\nh\n")
(goto-char 7)
(let ((duplicate-line-final-position -1)) (duplicate-line 2))
(should (equal (buffer-string) "abc\ndefg\ndefg\ndefg\nh\n"))
(should (equal (point) 17)))
;; Duplicate a non-terminated line.
(with-temp-buffer
(insert "abc")
(goto-char 2)
(duplicate-line)
(should (equal (buffer-string) "abc\nabc\n"))
(should (equal (point) 2))))
(require 'rect)
(ert-deftest misc--duplicate-dwim ()
;; Duplicate a line.
(with-temp-buffer
(insert "abc\ndefg\nh\n")
(goto-char 7)
(duplicate-dwim 2)
(should (equal (buffer-string) "abc\ndefg\ndefg\ndefg\nh\n"))
(should (equal (point) 7)))
;; Duplicate a region.
(with-temp-buffer
(insert "abc\ndef\n")
(set-mark 2)
(goto-char 7)
(transient-mark-mode)
(should (use-region-p))
(duplicate-dwim)
(should (equal (buffer-string) "abc\ndebc\ndef\n"))
(should (equal (point) 7))
(should (region-active-p))
(should (equal (mark) 2)))
;; Duplicate a rectangular region.
(with-temp-buffer
(insert "x\n>a\n>bcde\n>fg\nyz\n")
(goto-char 4)
(rectangle-mark-mode)
(goto-char 15)
(rectangle-forward-char 1)
(duplicate-dwim)
(should (equal (buffer-string) "x\n>a a \n>bcdbcde\n>fg fg \nyz\n"))
(should (equal (point) 24))
(should (region-active-p))
(should rectangle-mark-mode)
(should (equal (mark) 4))))
(provide 'misc-tests)
;;; misc-tests.el ends here
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