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|
;;; dired-tests.el --- Test suite. -*- lexical-binding: t -*-
;; Copyright (C) 2015-2025 Free Software Foundation, Inc.
;; 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/>.
;;; Code:
(require 'ert)
(require 'ert-x)
(require 'dired)
(ert-deftest dired-autoload ()
"Tests to see whether dired-x has been autoloaded"
(should
(fboundp 'dired-do-relsymlink))
(should
(autoloadp
(symbol-function
'dired-do-relsymlink))))
(ert-deftest dired-test-bug22694 ()
"Test for https://debbugs.gnu.org/22694 ."
(let* ((dir (expand-file-name "bug22694" default-directory))
(file "test")
(full-name (expand-file-name file dir))
(regexp "bar")
(dired-always-read-filesystem t) buffers)
(if (file-exists-p dir)
(delete-directory dir 'recursive))
(make-directory dir)
(with-temp-file full-name (insert "foo"))
(push (find-file-noselect full-name) buffers)
(push (dired dir) buffers)
(with-temp-file full-name (insert "bar"))
(dired-mark-files-containing-regexp regexp)
(unwind-protect
(should (equal (dired-get-marked-files nil nil nil 'distinguish-1-mark)
`(t ,full-name)))
;; Clean up
(dolist (buf buffers)
(when (buffer-live-p buf) (kill-buffer buf)))
(delete-directory dir 'recursive))))
(defvar dired-query)
(ert-deftest dired-test-bug25609 ()
"Test for https://debbugs.gnu.org/25609 ."
(let* ((from (make-temp-file "foo" 'dir))
;; Make sure we have long file-names in 'from' and 'to', not
;; their 8+3 short aliases, because the latter will confuse
;; Dired commands invoked below.
(from (if (memq system-type '(ms-dos windows-nt))
(file-truename from)
from))
(to (make-temp-file "bar" 'dir))
(to (if (memq system-type '(ms-dos windows-nt))
(file-truename to)
to))
(target (expand-file-name (file-name-nondirectory from) to))
(nested (expand-file-name (file-name-nondirectory from) target))
(dired-dwim-target t)
(dired-recursive-copies 'always) ; Don't prompt me.
buffers)
(advice-add 'dired-query ; Don't ask confirmation to overwrite a file.
:override
(lambda (_sym _prompt &rest _args) (setq dired-query t))
'((name . "advice-dired-query")))
(advice-add 'completing-read ; Don't prompt me: just return init.
:override
(lambda (_prompt _coll &optional _pred _match init _hist _def _inherit _keymap)
init)
'((name . "advice-completing-read")))
(delete-other-windows) ; We don't want to display any other dired buffers.
(push (dired to) buffers)
(push (dired-other-window temporary-file-directory) buffers)
(unwind-protect
(let ((ok-fn
(lambda ()
(let ((win-buffers (mapcar #'window-buffer (window-list))))
(and (memq (car buffers) win-buffers)
(memq (cadr buffers) win-buffers))))))
(dired-goto-file from)
;; Right before `dired-do-copy' call, to reproduce the bug conditions,
;; ensure we have windows displaying the two dired buffers.
(and (funcall ok-fn) (dired-do-copy))
;; Call `dired-do-copy' again: this must overwrite `target'; if the bug
;; still exists, then it creates `nested' instead.
(when (funcall ok-fn)
(dired-do-copy)
(should (file-exists-p target))
(should-not (file-exists-p nested))))
(dolist (buf buffers)
(when (buffer-live-p buf) (kill-buffer buf)))
(delete-directory from 'recursive)
(delete-directory to 'recursive)
(advice-remove 'dired-query "advice-dired-query")
(advice-remove 'completing-read "advice-completing-read"))))
;; (ert-deftest dired-test-bug27243 ()
;; "Test for https://debbugs.gnu.org/27243 ."
;; (let ((test-dir (make-temp-file "test-dir-" t))
;; (dired-auto-revert-buffer t) buffers)
;; (with-current-buffer (find-file-noselect test-dir)
;; (make-directory "test-subdir"))
;; (push (dired test-dir) buffers)
;; (unwind-protect
;; (let ((buf (current-buffer))
;; (pt1 (point))
;; (test-file (concat (file-name-as-directory "test-subdir")
;; "test-file")))
;; (write-region "Test" nil test-file nil 'silent nil 'excl)
;; ;; Sanity check: point should now be on the subdirectory.
;; (should (equal (dired-file-name-at-point)
;; (concat (file-name-as-directory test-dir)
;; (file-name-as-directory "test-subdir"))))
;; (push (dired-find-file) buffers)
;; (let ((pt2 (point))) ; Point is on test-file.
;; (switch-to-buffer buf)
;; ;; Sanity check: point should now be back on the subdirectory.
;; (should (eq (point) pt1))
;; ;; Case 1: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=27243#5
;; (push (dired-find-file) buffers)
;; (should (eq (point) pt2))
;; ;; Case 2: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=27243#28
;; (push (dired test-dir) buffers)
;; (should (eq (point) pt1))))
;; (dolist (buf buffers)
;; (when (buffer-live-p buf) (kill-buffer buf)))
;; (delete-directory test-dir t))))
(ert-deftest dired-test-bug27243-01 ()
"Test for https://debbugs.gnu.org/cgi/bugreport.cgi?bug=27243#5 ."
(ert-with-temp-directory test-dir
(let* ((save-pos (lambda ()
(with-current-buffer (car (dired-buffers-for-dir test-dir))
(dired-save-positions))))
(dired-auto-revert-buffer t) buffers)
;; On MS-Windows, get rid of 8+3 short names in test-dir, if the
;; corresponding long file names exist, otherwise such names trip
;; dired-buffers-for-dir.
(if (eq system-type 'windows-nt)
(setq test-dir (file-truename test-dir)))
(should-not (dired-buffers-for-dir test-dir))
(with-current-buffer (find-file-noselect test-dir)
(make-directory "test-subdir"))
(message "Saved pos: %S" (funcall save-pos))
;; Point must be at end-of-buffer.
(with-current-buffer (car (dired-buffers-for-dir test-dir))
(should (eobp)))
(push (dired test-dir) buffers)
(message "Saved pos: %S" (funcall save-pos))
;; Previous dired call shouldn't create a new buffer: must visit the one
;; created by `find-file-noselect' above.
(should (eq 1 (length (dired-buffers-for-dir test-dir))))
(unwind-protect
(let ((buf (current-buffer))
(pt1 (point))
(test-file (concat (file-name-as-directory "test-subdir")
"test-file")))
(message "Saved pos: %S" (funcall save-pos))
(write-region "Test" nil test-file nil 'silent nil 'excl)
(message "Saved pos: %S" (funcall save-pos))
;; Sanity check: point should now be on the subdirectory.
(should (equal (dired-file-name-at-point)
(concat test-dir (file-name-as-directory "test-subdir"))))
(message "Saved pos: %S" (funcall save-pos))
(push (dired-find-file) buffers)
(let ((pt2 (point))) ; Point is on test-file.
(pop-to-buffer-same-window buf)
;; Sanity check: point should now be back on the subdirectory.
(should (eq (point) pt1))
(push (dired-find-file) buffers)
(should (eq (point) pt2))))
(dolist (buf buffers)
(when (buffer-live-p buf) (kill-buffer buf)))))))
(ert-deftest dired-test-bug27243-02 ()
"Test for https://debbugs.gnu.org/cgi/bugreport.cgi?bug=27243#28 ."
:tags '(:unstable)
(ert-with-temp-directory test-dir
(let ((dired-auto-revert-buffer t)
(dired-free-space nil)
buffers)
;; On MS-Windows, get rid of 8+3 short names in test-dir, if the
;; corresponding long file names exist, otherwise such names trip
;; string comparisons below.
(if (eq system-type 'windows-nt)
(setq test-dir (file-truename test-dir)))
(with-current-buffer (find-file-noselect test-dir)
(make-directory "test-subdir"))
(push (dired test-dir) buffers)
(unwind-protect
(let ((buf (current-buffer))
(pt1 (point))
(test-file (concat (file-name-as-directory "test-subdir")
"test-file")))
(write-region "Test" nil test-file nil 'silent nil 'excl)
;; Sanity check: point should now be on the subdirectory.
(should (equal (dired-file-name-at-point)
(concat (file-name-as-directory test-dir)
(file-name-as-directory "test-subdir"))))
(push (dired-find-file) buffers)
;; Point is on test-file.
(switch-to-buffer buf)
;; Sanity check: point should now be back on the subdirectory.
(should (eq (point) pt1))
(push (dired test-dir) buffers)
(should (eq (point) pt1)))
(dolist (buf buffers)
(when (buffer-live-p buf) (kill-buffer buf)))))))
(ert-deftest dired-test-bug27243-03 ()
"Test for https://debbugs.gnu.org/cgi/bugreport.cgi?bug=27243#61 ."
(ert-with-temp-directory test-dir
(let ((dired-auto-revert-buffer t)
allbufs)
(unwind-protect
(progn
(with-current-buffer (find-file-noselect test-dir)
(push (current-buffer) allbufs)
(make-directory "test-subdir1")
(make-directory "test-subdir2")
(let ((test-file1 "test-file1")
(test-file2 "test-file2"))
(with-current-buffer (find-file-noselect "test-subdir1")
(push (current-buffer) allbufs)
(write-region "Test1" nil test-file1 nil 'silent nil 'excl))
(with-current-buffer (find-file-noselect "test-subdir2")
(push (current-buffer) allbufs)
(write-region "Test2" nil test-file2 nil 'silent nil 'excl))))
;; Call find-file with a wild card and test point in each file.
(let ((buffers (find-file (concat (file-name-as-directory test-dir)
"*")
t)))
(setq allbufs (append buffers allbufs))
(dolist (buf buffers)
(let ((pt (with-current-buffer buf (point))))
(switch-to-buffer (find-file-noselect test-dir))
(find-file (buffer-name buf))
(should (equal (point) pt))))))
(dolist (buf allbufs)
(when (buffer-live-p buf) (kill-buffer buf)))))))
(ert-deftest dired-test-bug7131 ()
"Test for https://debbugs.gnu.org/7131 ."
(let* ((dir (expand-file-name "lisp" source-directory))
(buf (dired dir)))
(unwind-protect
(progn
(setq buf (dired (list dir "simple.el")))
(dired-toggle-marks)
(should-not (cdr (dired-get-marked-files)))
(kill-buffer buf)
(setq buf (dired (list dir "simple.el"))
buf (dired dir))
(dired-toggle-marks)
(should (cdr (dired-get-marked-files))))
(when (buffer-live-p buf) (kill-buffer buf)))))
(ert-deftest dired-test-bug27631 ()
"Test for https://debbugs.gnu.org/27631 ."
;; For dired using 'ls' emulation we test for this bug in
;; ls-lisp-tests.el and em-ls-tests.el.
(skip-unless (not (or (featurep 'ls-lisp)
(featurep 'eshell))))
(ert-with-temp-directory dir
(let* ((dir1 (expand-file-name "dir1" dir))
(dir2 (expand-file-name "dir2" dir))
(default-directory dir)
buf)
(unwind-protect
(progn
(make-directory dir1)
(make-directory dir2)
(with-temp-file (expand-file-name "a.txt" dir1))
(with-temp-file (expand-file-name "b.txt" dir2))
(setq buf (dired (expand-file-name "dir*/*.txt" dir)))
(dired-toggle-marks)
(should (cdr (dired-get-marked-files))))
(when (buffer-live-p buf) (kill-buffer buf))))))
(ert-deftest dired-test-bug27899 ()
"Test for https://debbugs.gnu.org/27899 ."
:tags '(:unstable)
(dired (list (expand-file-name "src" source-directory)
"cygw32.c" "alloc.c" "w32xfns.c" "xdisp.c"))
(let ((orig dired-hide-details-mode))
(dired-goto-file (expand-file-name "cygw32.c"))
(forward-line 0)
(unwind-protect
(progn
(let ((inhibit-read-only t))
(dired-align-file (point) (point-max)))
(dired-hide-details-mode t)
(dired-move-to-filename)
(should (eq 2 (current-column))))
(dired-hide-details-mode orig))))
(ert-deftest dired-test-bug27968 ()
"Test for https://debbugs.gnu.org/27968 ."
(ert-with-temp-directory top-dir
(let* ((subdir (expand-file-name "subdir" top-dir))
(header-len-fn (lambda ()
(save-excursion
(goto-char 1)
(forward-line 1)
(- (pos-eol) (point)))))
orig-len len diff pos line-nb)
(make-directory subdir 'parents)
(with-current-buffer (dired-noselect subdir)
(setq orig-len (funcall header-len-fn)
pos (point)
line-nb (line-number-at-pos))
;; Bug arises when the header line changes its length; this may
;; happen if the used space has changed: for instance, with the
;; creation of additional files.
(make-directory "subdir" t)
(dired-revert)
;; Change the header line.
(save-excursion
(goto-char 1)
(forward-line 1)
(let ((inhibit-read-only t)
(new-header " test-bug27968"))
(delete-region (point) (pos-eol))
(when (= orig-len (length new-header))
;; Wow lucky guy! I must buy lottery today.
(setq new-header (concat new-header " :-)")))
(insert new-header)))
(setq len (funcall header-len-fn)
diff (- len orig-len))
(should-not (zerop diff)) ; Header length has changed.
;; If diff > 0, then the point moves back.
;; If diff < 0, then the point moves forward.
;; If diff = 0, then the point doesn't move.
;; Sometimes this point movement causes
;; line-nb != (line-number-at-pos pos), so that we get
;; an unexpected file at point if we store buffer points.
;; Note that the line number before/after revert
;; doesn't change.
(should (= line-nb
(line-number-at-pos)
(line-number-at-pos (+ pos diff))))
;; After revert, the point must be in 'subdir' line.
(should (equal "subdir" (dired-get-filename 'local t)))))))
(ert-deftest dired-test-bug59047 ()
"Test for https://debbugs.gnu.org/59047 ."
(dired (list (expand-file-name "src" source-directory)
"cygw32.c" "alloc.c" "w32xfns.c" "xdisp.c"))
(dired-hide-all)
(dired-hide-all)
(dired-next-line 1)
(should (equal 'dired-hide-details-detail
(get-text-property
(1+ (line-beginning-position)) 'invisible))))
(defmacro dired-test-with-temp-dirs (just-empty-dirs &rest body)
"Helper macro for Bug#27940 test."
(declare (indent 1) (debug body))
(let ((dir (make-symbol "dir")))
`(ert-with-temp-directory ,dir
(let* ((dired-deletion-confirmer (lambda (_) "yes")) ; Suppress prompts.
(inhibit-message t)
(default-directory ,dir))
(dotimes (i 5) (make-directory (format "empty-dir-%d" i)))
(unless ,just-empty-dirs
(dotimes (i 5) (make-directory (format "non-empty-%d/foo" i) 'parents)))
(make-directory "zeta-empty-dir")
(unwind-protect
(progn
,@body)
(kill-buffer (current-buffer)))))))
(ert-deftest dired-test-bug27940 ()
"Test for https://debbugs.gnu.org/27940 ."
;; If just empty dirs we shouldn't be prompted.
(dired-test-with-temp-dirs
'just-empty-dirs
(let (asked)
(advice-add 'read-answer
:override
(lambda (_q _a) (setq asked t) "")
'((name . dired-test-bug27940-advice)))
(dired default-directory)
(dired-toggle-marks)
(dired-do-delete nil)
(unwind-protect
(progn
(should-not asked)
(should-not (dired-get-marked-files))) ; All dirs deleted.
(advice-remove 'read-answer 'dired-test-bug27940-advice))))
;; Answer yes
(dired-test-with-temp-dirs
nil
(advice-add 'read-answer :override (lambda (_q _a) "yes")
'((name . dired-test-bug27940-advice)))
(dired default-directory)
(dired-toggle-marks)
(dired-do-delete nil)
(unwind-protect
(should-not (dired-get-marked-files)) ; All dirs deleted.
(advice-remove 'read-answer 'dired-test-bug27940-advice)))
;; Answer no
(dired-test-with-temp-dirs
nil
(advice-add 'read-answer :override (lambda (_q _a) "no")
'((name . dired-test-bug27940-advice)))
(dired default-directory)
(dired-toggle-marks)
(dired-do-delete nil)
(unwind-protect
(should (= 5 (length (dired-get-marked-files)))) ; Just the empty dirs deleted.
(advice-remove 'read-answer 'dired-test-bug27940-advice)))
;; Answer all
(dired-test-with-temp-dirs
nil
(advice-add 'read-answer :override (lambda (_q _a) "all")
'((name . dired-test-bug27940-advice)))
(dired default-directory)
(dired-toggle-marks)
(dired-do-delete nil)
(unwind-protect
(should-not (dired-get-marked-files)) ; All dirs deleted.
(advice-remove 'read-answer 'dired-test-bug27940-advice)))
;; Answer quit
(dired-test-with-temp-dirs
nil
(advice-add 'read-answer :override (lambda (_q _a) "quit")
'((name . dired-test-bug27940-advice)))
(dired default-directory)
(dired-toggle-marks)
(let ((inhibit-message t))
(dired-do-delete nil))
(unwind-protect
(should (= 6 (length (dired-get-marked-files)))) ; All empty dirs but zeta-empty-dir deleted.
(advice-remove 'read-answer 'dired-test-bug27940-advice))))
(ert-deftest dired-test-directory-files ()
"Test for `directory-files'."
(let ((testdir (expand-file-name
"directory-files-test" (temporary-file-directory)))
(nod directory-files-no-dot-files-regexp))
(unwind-protect
(progn
(when (file-directory-p testdir)
(delete-directory testdir t))
(make-directory testdir)
(when (file-directory-p testdir)
;; directory-empty-p: test non-existent dir
(should-not (directory-empty-p "some-imaginary-dir"))
(should (= 2 (length (directory-files testdir))))
;; directory-empty-p: test empty dir
(should (directory-empty-p testdir))
(should-not (directory-files testdir nil nod t 1))
(dolist (file '(a b c d))
(make-empty-file (expand-file-name (symbol-name file) testdir)))
(should (= 6 (length (directory-files testdir))))
(should (equal "abcd" (mapconcat #'identity (directory-files
testdir nil nod))))
(should (= 2 (length (directory-files testdir nil "[bc]"))))
(should (= 3 (length (directory-files testdir nil nod nil 3))))
(dolist (file '(5 4 3 2 1))
(make-empty-file
(expand-file-name (number-to-string file) testdir)))
;;(should (= 0 (length (directory-files testdir nil "[0-9]" t -1))))
(should (= 5 (length (directory-files testdir nil "[0-9]" t))))
(should (= 5 (length (directory-files testdir nil "[0-9]" t 50))))
(should-not (directory-empty-p testdir))))
(delete-directory testdir t))))
(ert-deftest dired-test-directory-files-and-attributes ()
"Test for `directory-files-and-attributes'."
(let ((testdir (expand-file-name
"directory-files-test" (temporary-file-directory)))
(nod directory-files-no-dot-files-regexp))
(unwind-protect
(progn
(when (file-directory-p testdir)
(delete-directory testdir t))
(make-directory testdir)
(when (file-directory-p testdir)
(should (= 2 (length (directory-files testdir))))
(should-not (directory-files-and-attributes testdir t nod t 1))
(dolist (file '(a b c d))
(make-directory (expand-file-name (symbol-name file) testdir)))
(should (= 6 (length (directory-files-and-attributes testdir))))
(dolist (dir (directory-files-and-attributes testdir t nod))
(should (file-directory-p (car dir)))
(should-not (file-regular-p (car dir))))
(should (= 2 (length
(directory-files-and-attributes testdir nil "[bc]"))))
(should (= 3 (length
(directory-files-and-attributes
testdir nil nod nil nil 3))))
(dolist (file '(5 4 3 2 1))
(make-empty-file
(expand-file-name (number-to-string file) testdir)))
;; (should (= 0 (length (directory-files-and-attributes testdir nil
;; "[0-9]" t
;; nil -1))))
(should (= 5 (length
(directory-files-and-attributes
testdir nil "[0-9]" t))))
(should (= 5 (length
(directory-files-and-attributes
testdir nil "[0-9]" t nil 50))))))
(when (file-directory-p testdir)
(delete-directory testdir t)))))
;; `dired-insert-directory' output tests.
(let* ((data-dir "insert-directory")
(test-dir (file-name-as-directory
(ert-resource-file
(concat data-dir "/test_dir"))))
(test-dir-other (file-name-as-directory
(ert-resource-file
(concat data-dir "/test_dir_other"))))
(test-files `(,test-dir "foo" "bar")) ;expected files to be found
;; Free space test data for `insert-directory'.
;; Meaning: (path free-space-bytes-to-stub expected-free-space-string)
(free-data `((,test-dir 10 "available 10 B")
(,test-dir-other 100 "available 100 B")
(:default 999 "available 999 B"))))
(defun files-tests--look-up-free-data (path)
"Look up free space test data, with a default for unspecified paths."
(let ((path (file-name-as-directory path)))
(cdr (or (assoc path free-data)
(assoc :default free-data)))))
(defun files-tests--make-file-system-info-stub (&optional static-path)
"Return a stub for `file-system-info' using dynamic or static test data.
If that data should be static, pass STATIC-PATH to choose which
path's data to use."
(lambda (path)
(let* ((path (cond (static-path)
;; file-system-info knows how to handle ".", so we
;; do the same thing
((equal "." path) default-directory)
(path)))
(return-size
;; It is always defined but this silences the byte-compiler:
(when (fboundp 'files-tests--look-up-free-data)
(car (files-tests--look-up-free-data path)))))
(list return-size return-size return-size))))
(defun files-tests--insert-directory-output (dir &optional _verbose)
"Run `insert-directory' and return its output."
(with-current-buffer-window "files-tests--insert-directory" nil nil
(let ((dired-free-space 'separate))
(dired-insert-directory dir "-l" nil nil t))
(buffer-substring-no-properties (point-min) (point-max))))
(ert-deftest files-tests-insert-directory-shows-files ()
"Verify `insert-directory' reports the files in the directory."
;; It is always defined but this silences the byte-compiler:
(when (fboundp 'files-tests--insert-directory-output)
(let* ((test-dir (car test-files))
(files (cdr test-files))
(output (files-tests--insert-directory-output test-dir)))
(dolist (file files)
(should (string-match-p file output))))))
(defun files-tests--insert-directory-shows-given-free (dir &optional
info-func)
"Run `insert-directory' and verify it reports the correct available space.
Stub `file-system-info' to ensure the available space is consistent,
either with the given stub function or a default one using test data."
;; It is always defined but this silences the byte-compiler:
(when (and (fboundp 'files-tests--make-file-system-info-stub)
(fboundp 'files-tests--look-up-free-data)
(fboundp 'files-tests--insert-directory-output))
(cl-letf (((symbol-function 'file-system-info)
(or info-func
(files-tests--make-file-system-info-stub))))
(should (string-match-p (cadr
(files-tests--look-up-free-data dir))
(files-tests--insert-directory-output dir t))))))
(ert-deftest files-tests-insert-directory-shows-free ()
"Test that verbose `insert-directory' shows the correct available space."
;; It is always defined but this silences the byte-compiler:
(when (and (fboundp 'files-tests--insert-directory-shows-given-free)
(fboundp 'files-tests--make-file-system-info-stub))
(files-tests--insert-directory-shows-given-free
test-dir
(files-tests--make-file-system-info-stub test-dir))))
(ert-deftest files-tests-bug-50630 ()
"Verify verbose `insert-directory' shows free space of the target directory.
The current directory at call time should not affect the result (Bug#50630)."
;; It is always defined but this silences the byte-compiler:
(when (fboundp 'files-tests--insert-directory-shows-given-free)
(let ((default-directory test-dir-other))
(files-tests--insert-directory-shows-given-free test-dir)))))
(provide 'dired-tests)
;;; dired-tests.el ends here
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