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24a699243e
* lisp/textmodes/fill.el (fill-region-as-paragraph-semlf): Add function to fill a region using semantic linefeeds as if it were a single paragraph. (fill-paragraph-semlf): Add function to fill paragraph using semantic linefeeds. * test/lisp/textmodes/fill-tests.el (fill-test-fill-region-as-paragraph-semlf) (fill-test-fill-paragraph-semlf) (fill-test-fill-paragraph-semlf-fill-paragraph-function) (fill-test-fill-paragraph-semlf-justify) (fill-test-fill-paragraph-semlf-sentence-end-double-space) (fill-test-fill-paragraph-semlf-fill-column) (fill-test-fill-paragraph-semlf-punctuation-marks) (fill-test-fill-paragraph-semlf-twice) (fill-test-fill-paragraph-semlf-fill-prefix) (fill-test-fill-paragraph-semlf-indented-block) (fill-test-fill-paragraph-semlf-revert) (fill-test-fill-paragraph-semlf-emacs-lisp-mode) (fill-test-fill-paragraph-semlf-c-mode) (fill-test-fill-paragraph-semlf-org-mode) (fill-test-fill-paragraph-semlf-markdown-mode): Add tests. * test/lisp/textmodes/fill-resources/semlf-c-mode.erts: * test/lisp/textmodes/fill-resources/semlf-emacs-lisp-mode.erts: * test/lisp/textmodes/fill-resources/semlf-fill-column.erts: * test/lisp/textmodes/fill-resources/semlf-fill-paragraph-function.erts: * test/lisp/textmodes/fill-resources/semlf-fill-prefix.erts: * test/lisp/textmodes/fill-resources/semlf-fill-region-as-paragraph.erts: * test/lisp/textmodes/fill-resources/semlf-indented-block.erts: * test/lisp/textmodes/fill-resources/semlf-justify.erts: * test/lisp/textmodes/fill-resources/semlf-markdown-mode.erts: * test/lisp/textmodes/fill-resources/semlf-org-mode.erts: * test/lisp/textmodes/fill-resources/semlf-punctuation-marks.erts: * test/lisp/textmodes/fill-resources/semlf-revert.erts: * test/lisp/textmodes/fill-resources/semlf-sentence-end-double-space.erts: * test/lisp/textmodes/fill-resources/semlf-twice.erts: * test/lisp/textmodes/fill-resources/semlf.erts: Add test data. (Bug#78561)
238 lines
8.4 KiB
EmacsLisp
238 lines
8.4 KiB
EmacsLisp
;;; fill-tests.el --- ERT tests for fill.el -*- lexical-binding: t -*-
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;; Copyright (C) 2017-2025 Free Software Foundation, Inc.
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;; Author: Marcin Borkowski <mbork@mbork.pl>
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;; Keywords: text
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
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;;; Commentary:
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;; This package defines tests for the filling feature, specifically
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;; the `fill-polish-nobreak-p' function.
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;;; Code:
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(require 'ert)
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(require 'ert-x)
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(ert-deftest fill-test-no-fill-polish-nobreak-p nil
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"Tests of the `fill-polish-nobreak-p' function."
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(with-temp-buffer
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(insert "Abc d efg (h ijk).")
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(setq fill-column 8)
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(setq-local fill-nobreak-predicate '())
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(fill-paragraph)
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(should (string= (buffer-string) "Abc d\nefg (h\nijk).")))
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(with-temp-buffer
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(insert "Abc d efg (h ijk).")
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(setq fill-column 8)
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(setq-local fill-nobreak-predicate '(fill-polish-nobreak-p))
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(fill-paragraph)
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(should (string= (buffer-string) "Abc\nd efg\n(h ijk)."))))
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(ert-deftest fill-test-unbreakable-paragraph ()
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;; See bug#45720 and bug#53537.
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:expected-result :failed
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(with-temp-buffer
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(let ((string "aaa = baaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"))
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(insert string)
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(goto-char (point-min))
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(search-forward "b")
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(let* ((pos (point))
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(beg (pos-bol))
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(end (pos-eol))
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(fill-prefix (make-string (- pos beg) ?\s))
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;; `fill-column' is too small to accommodate the current line
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(fill-column (- end beg 10)))
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(fill-region-as-paragraph beg end nil nil pos))
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(should (equal (buffer-string) string)))))
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(ert-deftest fill-test-breakable-paragraph ()
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(with-temp-buffer
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(let ((string "aaa = baaaaaaaa aaaaaaaaaa aaaaaaaaaa\n"))
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(insert string)
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(goto-char (point-min))
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(search-forward "b")
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(let* ((pos (point))
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(beg (pos-bol))
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(end (pos-eol))
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(fill-prefix (make-string (- pos beg) ?\s))
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;; `fill-column' is too small to accommodate the current line
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(fill-column (- end beg 10)))
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(fill-region-as-paragraph beg end nil nil pos))
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(should (equal
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(buffer-string)
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"aaa = baaaaaaaa aaaaaaaaaa\n aaaaaaaaaa\n")))))
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(ert-deftest test-fill-end-period ()
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(should
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(equal
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(with-temp-buffer
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(text-mode)
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(auto-fill-mode)
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(insert "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eius.")
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(self-insert-command 1 ?\s)
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(buffer-string))
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"Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eius. "))
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(should
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(equal
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(with-temp-buffer
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(text-mode)
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(auto-fill-mode)
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(insert "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eius.Foo")
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(forward-char -3)
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(self-insert-command 1 ?\s)
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(buffer-string))
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"Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do
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eius. Foo")))
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(ert-deftest test-fill-haskell ()
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(should
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(equal
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(with-temp-buffer
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(asm-mode)
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(dolist (line '(" ;; a b c"
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" ;; d e f"
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" ;; x y z"
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" ;; w"))
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(insert line "\n"))
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(goto-char (point-min))
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(end-of-line)
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(setf fill-column 10)
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(fill-paragraph nil)
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(buffer-string))
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" ;; a b c
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;; d e f
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;; x y z
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;; w
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")))
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(ert-deftest fill-test-fill-region-as-paragraph-semlf ()
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"Test the `fill-region-as-paragraph-semlf' function."
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(ert-test-erts-file (ert-resource-file "semlf-fill-region-as-paragraph.erts")
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(lambda ()
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(setq-local fill-column 35)
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(fill-region-as-paragraph-semlf
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(point)
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(progn
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(goto-char (point-max))
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(forward-line -1)
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(beginning-of-line)
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(point))))))
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(ert-deftest fill-test-fill-paragraph-semlf ()
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"Test the `fill-paragraph-semlf' function."
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(ert-test-erts-file (ert-resource-file "semlf.erts")
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(lambda ()
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(fill-paragraph-semlf))))
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(ert-deftest fill-test-fill-paragraph-semlf-fill-paragraph-function ()
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"Test `fill-paragraph-semlf' as `fill-paragraph-function'."
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(ert-test-erts-file (ert-resource-file "semlf-fill-paragraph-function.erts")
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(lambda ()
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(setq-local fill-paragraph-function #'fill-paragraph-semlf)
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(fill-paragraph))))
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(ert-deftest fill-test-fill-paragraph-semlf-justify ()
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"Test the JUSTIFY parameter of the `fill-paragraph-semlf' function."
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(ert-test-erts-file (ert-resource-file "semlf-justify.erts")
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(lambda ()
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(fill-paragraph-semlf 'justify))))
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(ert-deftest fill-test-fill-paragraph-semlf-sentence-end-double-space ()
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"Test the `fill-paragraph-semlf' function with `sentence-end-double-space'."
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(ert-test-erts-file (ert-resource-file "semlf-sentence-end-double-space.erts")
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(lambda ()
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(setq-local sentence-end-double-space nil)
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(fill-paragraph-semlf))))
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(ert-deftest fill-test-fill-paragraph-semlf-fill-column ()
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"Test the `fill-paragraph-semlf' function with `fill-column'."
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(ert-test-erts-file (ert-resource-file "semlf-fill-column.erts")
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(lambda ()
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(setq-local fill-column 35)
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(fill-paragraph-semlf))))
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(ert-deftest fill-test-fill-paragraph-semlf-punctuation-marks ()
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"Test the `fill-paragraph-semlf' function with different punctuation marks."
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(ert-test-erts-file (ert-resource-file "semlf-punctuation-marks.erts")
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(lambda ()
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(fill-paragraph-semlf))))
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(ert-deftest fill-test-fill-paragraph-semlf-twice ()
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"Test to run the `fill-paragraph-semlf' function twice."
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(ert-test-erts-file (ert-resource-file "semlf-twice.erts")
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(lambda ()
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(goto-char (point-min))
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(fill-paragraph-semlf)
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(goto-char (point-min))
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(fill-paragraph-semlf))))
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(ert-deftest fill-test-fill-paragraph-semlf-fill-prefix ()
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"Test the `fill-paragraph-semlf' function with different fill prefixes."
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(ert-test-erts-file (ert-resource-file "semlf-fill-prefix.erts")
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(lambda ()
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(fill-paragraph-semlf))))
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(ert-deftest fill-test-fill-paragraph-semlf-indented-block ()
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"Test the `fill-paragraph-semlf' function with an indented block."
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(ert-test-erts-file (ert-resource-file "semlf-indented-block.erts")
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(lambda ()
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(fill-paragraph-semlf))))
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(ert-deftest fill-test-fill-paragraph-semlf-revert ()
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"Test that the `fill-paragraph-semlf' function can be reverted."
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(ert-test-erts-file (ert-resource-file "semlf-revert.erts")
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(lambda ()
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(fill-paragraph)
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(fill-paragraph-semlf)
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(fill-paragraph))))
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(ert-deftest fill-test-fill-paragraph-semlf-emacs-lisp-mode ()
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"Test the `fill-paragraph-semlf' function with `emacs-lisp-mode'."
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(ert-test-erts-file (ert-resource-file "semlf-emacs-lisp-mode.erts")
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(lambda ()
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(emacs-lisp-mode)
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(fill-paragraph-semlf))))
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(ert-deftest fill-test-fill-paragraph-semlf-c-mode ()
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"Test the `fill-paragraph-semlf' function with `c-mode'."
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(ert-test-erts-file (ert-resource-file "semlf-c-mode.erts")
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(lambda ()
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(c-mode)
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(fill-paragraph-semlf))))
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(ert-deftest fill-test-fill-paragraph-semlf-org-mode ()
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"Test the `fill-paragraph-semlf' function with `org-mode'."
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(ert-test-erts-file (ert-resource-file "semlf-org-mode.erts")
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(lambda ()
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(org-mode)
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(fill-paragraph-semlf))))
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(ert-deftest fill-test-fill-paragraph-semlf-markdown-mode ()
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"Test the `fill-paragraph-semlf' function with `markdown-mode'."
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(skip-unless (functionp 'markdown-mode))
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(ert-test-erts-file (ert-resource-file "semlf-markdown-mode.erts")
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(lambda ()
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(markdown-mode)
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(fill-paragraph-semlf))))
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(provide 'fill-tests)
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;;; fill-tests.el ends here
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