279 lines
11 KiB
EmacsLisp
279 lines
11 KiB
EmacsLisp
;;; dabbrev-tests.el --- Test suite for dabbrev. -*- lexical-binding:t -*-
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;; Copyright (C) 2016-2024 Free Software Foundation, Inc.
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;; Author: Alan Third <alan@idiocy.org>
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;; Keywords: dabbrev
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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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;;; Code:
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(require 'ert)
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(require 'ert-x)
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(require 'dabbrev)
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(ert-deftest dabbrev-expand-test ()
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"Test for bug#1948.
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When `dabbrev-eliminate-newlines' is non-nil (the default),
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repeated calls to `dabbrev-expand' can result in the source of
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first expansion being replaced rather than the destination."
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(with-temp-buffer
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(insert "ab x\na\nab y")
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(goto-char 8)
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(save-window-excursion
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(set-window-buffer nil (current-buffer))
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(execute-kbd-macro (kbd "M-/ SPC M-/ M-/")))
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(should (string= (buffer-string) "ab x\nab y\nab y"))))
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(ert-deftest dabbrev-completion-test ()
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"Test for bug#17899.
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dabbrev-completion should not look for expansions in other
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buffers unless a prefix argument is used."
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(with-temp-buffer
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(insert "axy")
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(with-temp-buffer
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(insert "abc\na")
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(goto-char 6)
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(save-window-excursion
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(set-window-buffer nil (current-buffer))
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(execute-kbd-macro (kbd "C-M-/")))
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(should (string= (buffer-string) "abc\nabc")))))
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(ert-deftest dabbrev-completion-test-with-argument ()
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"Test for bug#17899.
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dabbrev-completion should not complete because it has found
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multiple expansions."
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(with-temp-buffer
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(insert "axy")
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(with-temp-buffer
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(insert "abc\na")
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(goto-char 6)
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(save-window-excursion
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(set-window-buffer nil (current-buffer))
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(execute-kbd-macro (kbd "C-u C-u C-M-/")))
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(should (string= (buffer-string) "abc\na")))))
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(defmacro with-dabbrev-test (&rest body)
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"Set up an isolated `dabbrev' test environment."
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(declare (debug (body)))
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`(ert-with-temp-directory dabbrev-test-home
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(let* (;; Since we change HOME, clear this to avoid a conflict
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;; e.g. if Emacs runs within the user's home directory.
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(abbreviated-home-dir nil)
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(process-environment (cons (format "HOME=%s" dabbrev-test-home)
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process-environment))
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(dabbrev-directory (ert-resource-directory)))
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(unwind-protect
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(progn ,@body)
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;; Restore pre-test-run state of test files.
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(dolist (f (directory-files dabbrev-directory))
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(let ((buf (get-file-buffer f)))
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(when buf
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(with-current-buffer buf
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(restore-buffer-modified-p nil)
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(kill-buffer)))))
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(dabbrev--reset-global-variables)))))
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(ert-deftest dabbrev-expand-test-same-buffer-1 ()
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"Test expanding a string twice within a single buffer.
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The first expansion should expand the input (a prefix-string) to a
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string in the buffer containing no whitespace character, the second
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expansion, after adding a space to the first expansion, should extend
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the string with the following string in the buffer up to the next
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whitespace character."
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(with-dabbrev-test
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(find-file (ert-resource-file "INSTALL_BEGIN"))
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(goto-char (point-max))
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(terpri)
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(execute-kbd-macro (kbd "Ind M-/"))
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(should (string= (buffer-substring (pos-bol) (pos-eol)) "Indic"))
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(execute-kbd-macro (kbd "SPC M-/"))
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(should (string= (buffer-substring (pos-bol) (pos-eol)) "Indic and"))))
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(ert-deftest dabbrev-expand-test-same-buffer-2 ()
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"Test expanding a string plus space twice within a single buffer.
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Each expansion should extend the string with the following string in the
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buffer up to the next whitespace character."
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(with-dabbrev-test
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(find-file (ert-resource-file "INSTALL_BEGIN"))
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(goto-char (point-max))
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(terpri)
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(execute-kbd-macro (kbd "Indic SPC M-/"))
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(should (string= (buffer-substring (pos-bol) (pos-eol)) "Indic and"))
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(execute-kbd-macro (kbd "SPC M-/"))
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(should (string= (buffer-substring (pos-bol) (pos-eol)) "Indic and Khmer"))))
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(ert-deftest dabbrev-expand-test-same-buffer-3 ()
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"Test replacing an expansion within a single buffer."
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(with-dabbrev-test
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(find-file (ert-resource-file "INSTALL_BEGIN"))
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(goto-char (point-max))
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(terpri)
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(insert-file-contents (ert-resource-file "dabbrev-expand.el"))
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(goto-char (point-max))
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(terpri)
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(execute-kbd-macro (kbd "Ind M-/"))
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(should (string= (buffer-substring (pos-bol) (pos-eol)) "Indicate"))
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(kill-whole-line)
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(execute-kbd-macro (kbd "Ind M-/ M-/"))
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(should (string= (buffer-substring (pos-bol) (pos-eol)) "Indic"))
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(execute-kbd-macro (kbd "SPC M-/"))
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(should (string= (buffer-substring (pos-bol) (pos-eol)) "Indic and"))))
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(ert-deftest dabbrev-expand-test-same-buffer-4 ()
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"Test expanding a string in a narrowed-region."
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(with-dabbrev-test
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(let (disabled-command-function) ; Enable narrow-to-region.
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(find-file (ert-resource-file "INSTALL_BEGIN"))
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(goto-char (point-min))
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(execute-kbd-macro (kbd "C-s Ind M-a C-SPC M-} C-x n n"))
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(goto-char (point-max))
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(terpri)
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(execute-kbd-macro (kbd "Ind M-/"))
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(should (string= (buffer-substring (pos-bol) (pos-eol)) "Indic"))
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(execute-kbd-macro (kbd "SPC M-/"))
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(should (string= (buffer-substring (pos-bol) (pos-eol)) "Indic and")))))
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(ert-deftest dabbrev-expand-test-other-buffer-1 ()
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"Test expanding a prefix string to a string from another buffer."
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(with-dabbrev-test
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(find-file (ert-resource-file "INSTALL_BEGIN"))
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(switch-to-buffer (get-buffer-create "a" t))
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(execute-kbd-macro (kbd "Ind M-/"))
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(should (string= (buffer-string) "Indic"))
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(execute-kbd-macro (kbd "SPC M-/"))
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(should (string= (buffer-string) "Indic and"))
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(kill-buffer "a")))
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(ert-deftest dabbrev-expand-test-other-buffer-2 ()
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"Test expanding a string + space to a string from another buffer."
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(with-dabbrev-test
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(find-file (ert-resource-file "INSTALL_BEGIN"))
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(switch-to-buffer (get-buffer-create "a" t))
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(execute-kbd-macro (kbd "Indic SPC M-/"))
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(should (string= (buffer-string) "Indic and"))
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(execute-kbd-macro (kbd "SPC M-/"))
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(should (string= (buffer-string) "Indic and Khmer"))
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(kill-buffer "a")))
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(ert-deftest dabbrev-expand-test-other-buffer-3 ()
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"Test replacing an expansion with three different buffers.
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A prefix string in a buffer should find the first expansion in a
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different buffer and then find a replacement expansion is yet another
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buffer."
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(with-dabbrev-test
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(find-file (ert-resource-file "INSTALL_BEGIN"))
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(find-file (ert-resource-file "dabbrev-expand.el"))
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(switch-to-buffer (get-buffer-create "a" t))
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(emacs-lisp-mode)
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(execute-kbd-macro (kbd "Ind M-/"))
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(should (string= (buffer-string) "Indicate"))
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(erase-buffer)
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(execute-kbd-macro (kbd "Ind M-/ M-/"))
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(should (string= (buffer-string) "Indic"))
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(execute-kbd-macro (kbd "SPC M-/"))
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(should (string= (buffer-string) "Indic and"))
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(kill-buffer "a")))
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(ert-deftest dabbrev-expand-test-other-buffer-4 ()
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"Test expanding a string using another narrowed buffer."
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(with-dabbrev-test
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(let (disabled-command-function) ; Enable narrow-to-region.
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(find-file (ert-resource-file "INSTALL_BEGIN"))
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(goto-char (point-min))
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(execute-kbd-macro (kbd "C-s Ind M-a C-SPC M-} C-x n n"))
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(switch-to-buffer (get-buffer-create "a" t))
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(execute-kbd-macro (kbd "Ind M-/"))
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(should (string= (buffer-string) "Indic"))
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(execute-kbd-macro (kbd "SPC M-/"))
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(should (string= (buffer-string) "Indic and"))
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(kill-buffer "a"))))
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(ert-deftest dabbrev-expand-test-minibuffer-1 ()
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"Test expanding a prefix string twice in the minibuffer.
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Both expansions should come from the buffer from which the minibuffer
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was entered."
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(with-dabbrev-test
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(find-file (ert-resource-file "INSTALL_BEGIN"))
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(with-selected-window (minibuffer-window)
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(insert "Ind")
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(dabbrev-expand nil)
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(should (string= (minibuffer-contents) "Indic"))
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(insert " ")
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(dabbrev-expand nil)
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(should (string= (minibuffer-contents) "Indic and"))
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(delete-minibuffer-contents))))
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(ert-deftest dabbrev-expand-test-minibuffer-2 ()
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"Test expanding a string + space in the minibuffer.
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The expansions should come from the buffer from which the minibuffer was
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entered."
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(with-dabbrev-test
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(find-file (ert-resource-file "INSTALL_BEGIN"))
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(with-selected-window (minibuffer-window)
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(insert "Indic ")
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(dabbrev-expand nil)
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(should (string= (minibuffer-contents) "Indic and"))
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(insert " ")
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(dabbrev-expand nil)
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(should (string= (buffer-string) "Indic and Khmer"))
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(delete-minibuffer-contents))))
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;; FIXME: Why is dabbrev--reset-global-variables needed here?
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(ert-deftest dabbrev-expand-test-minibuffer-3 ()
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"Test replacing an expansion in the minibuffer using two buffers.
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The first expansion should befound in the buffer from which the
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minibuffer was entered, the replacement should found in another buffer."
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(with-dabbrev-test
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(find-file (ert-resource-file "INSTALL_BEGIN"))
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(find-file (ert-resource-file "dabbrev-expand.el"))
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(with-selected-window (minibuffer-window)
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(insert "Ind")
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(dabbrev-expand nil)
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(should (string= (minibuffer-contents) "Indicate"))
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(kill-whole-line)
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(dabbrev--reset-global-variables)
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(insert "Ind")
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(dabbrev-expand nil)
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(dabbrev-expand nil)
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(should (string= (minibuffer-contents) "Indic"))
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(dabbrev--reset-global-variables)
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(insert " ")
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(dabbrev-expand nil)
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(should (string= (minibuffer-contents) "Indic and"))
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(delete-minibuffer-contents))))
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(ert-deftest dabbrev-expand-test-minibuffer-4 ()
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"Test expansion in the minibuffer using another narrowed buffer."
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(with-dabbrev-test
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(let (disabled-command-function) ; Enable narrow-to-region.
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(find-file (ert-resource-file "INSTALL_BEGIN"))
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(goto-char (point-min))
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(execute-kbd-macro (kbd "C-s Ind M-a C-SPC M-} C-x n n")))
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(with-selected-window (minibuffer-window)
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(insert "Ind")
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(dabbrev-expand nil)
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(should (string= (minibuffer-contents) "Indic"))
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(insert " ")
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(dabbrev-expand nil)
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(should (string= (minibuffer-contents) "Indic and"))
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(delete-minibuffer-contents))))
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;;; dabbrev-tests.el ends here
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