;;; dired-tests.el --- Test suite. -*- lexical-binding: t -*-

;; Copyright (C) 2015-2017 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 <http://www.gnu.org/licenses/>.

;;; Code:
(require 'ert)
(require 'dired)
(require 'nadvice)

(ert-deftest dired-autoload ()
  "Tests to see whether dired-x has been autoloaded"
  (should
   (fboundp 'dired-jump))
  (should
   (autoloadp
    (symbol-function
     'dired-jump))))

(ert-deftest dired-test-bug22694 ()
  "Test for http://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))))

(ert-deftest dired-test-bug25609 ()
  "Test for http://debbugs.gnu.org/25609 ."
  (let* ((from (make-temp-file "foo" 'dir))
         (to (make-temp-file "bar" 'dir))
         (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 ; Just return init.
                :override
                (lambda (_prompt _coll &optional _pred _match init _hist _def _inherit _keymap)
                  init)
                '((name . "advice-completing-read")))
    (push (dired to) buffers)
    (push (dired-other-window temporary-file-directory) buffers)
    (dired-goto-file from)
    (dired-do-copy)
    (dired-do-copy); Again.
    (unwind-protect
        (progn
          (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 http://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 ."
  (let ((test-dir (file-name-as-directory (make-temp-file "test-dir-" t)))
        (dired-auto-revert-buffer t) buffers)
    (should-not (dired-buffers-for-dir test-dir))
    (with-current-buffer (find-file-noselect test-dir)
      (make-directory "test-subdir"))
    ;; Point must be at end-of-buffer.
    (with-current-buffer (car (dired-buffers-for-dir test-dir))
      (should (eobp)))
    (push (dired test-dir) buffers)
    ;; 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")))
          (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 test-dir (file-name-as-directory "test-subdir"))))
          (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)))
      (delete-directory test-dir t))))

(ert-deftest dired-test-bug27243-02 ()
  "Test for https://debbugs.gnu.org/cgi/bugreport.cgi?bug=27243#28 ."
  (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))
            (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-bug27243-03 ()
  "Test for https://debbugs.gnu.org/cgi/bugreport.cgi?bug=27243#61 ."
  (let ((test-dir (make-temp-file "test-dir-" t))
        (dired-auto-revert-buffer t)
        test-subdir1 test-subdir2 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)))
            (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))))
            (append buffers allbufs)))
      (dolist (buf allbufs)
        (when (buffer-live-p buf) (kill-buffer buf)))
      (delete-directory test-dir t))))

(ert-deftest dired-test-bug27693 ()
  "Test for http://debbugs.gnu.org/27693 ."
  (require 'ls-lisp)
  (let ((dir (expand-file-name "lisp" source-directory))
        (size "")
        ls-lisp-use-insert-directory-program buf)
    (unwind-protect
        (progn
          (setq buf (dired (list dir "simple.el" "subr.el"))
                size (number-to-string
                      (file-attribute-size
                       (file-attributes (dired-get-filename)))))
          (search-backward-regexp size nil t)
          (should (looking-back "[[:space:]]" (1- (point)))))
      (unload-feature 'ls-lisp 'force)
      (when (buffer-live-p buf) (kill-buffer buf)))))

(ert-deftest dired-test-bug7131 ()
  "Test for http://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-bug27762 ()
  "Test for http://debbugs.gnu.org/27762 ."
  :expected-result :failed
  (require 'ls-lisp)
  (let* ((dir source-directory)
         (default-directory dir)
         (files (mapcar (lambda (f) (concat "src/" f))
                        (directory-files
                         (expand-file-name "src") nil "\\.*\\.c\\'")))
         ls-lisp-use-insert-directory-program buf)
    (unwind-protect
        (let ((file1 "src/cygw32.c")
              (file2 "src/atimer.c"))
          (setq buf (dired (nconc (list dir) files)))
          (dired-goto-file (expand-file-name file2 default-directory))
          (should-not (looking-at "^   -")) ; Must be 2 spaces not 3.
          (setq files (cons file1 (delete file1 files)))
          (kill-buffer buf)
          (setq buf (dired (nconc (list dir) files)))
          (should (looking-at "src"))
          (next-line) ; File names must be aligned.
          (should (looking-at "src")))
      (unload-feature 'ls-lisp 'force)
      (when (buffer-live-p buf) (kill-buffer buf)))))

(ert-deftest dired-test-bug27817 ()
  "Test for http://debbugs.gnu.org/27817 ."
  (require 'em-ls)
  (let ((orig eshell-ls-use-in-dired)
        (dired-use-ls-dired 'unspecified)
        buf insert-directory-program)
    (unwind-protect
        (progn
          (customize-set-variable 'eshell-ls-use-in-dired t)
          (should (setq buf (dired source-directory))))
      (customize-set-variable 'eshell-ls-use-in-dired orig)
      (unload-feature 'em-ls 'force)
      (and (buffer-live-p buf) (kill-buffer)))))

(ert-deftest dired-test-bug27631 ()
  "Test for http://debbugs.gnu.org/27631 ."
  (let* ((dir (make-temp-file "bug27631" 'dir))
         (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)))
          ;; Must work with ls-lisp ...
	  (require 'ls-lisp)
          (kill-buffer buf)
	  (setq default-directory dir)
	  (let (ls-lisp-use-insert-directory-program)
            (setq buf (dired (expand-file-name "dir*/*.txt" dir)))
            (dired-toggle-marks)
            (should (cdr (dired-get-marked-files))))
	  ;; ... And with em-ls as well.
	  (kill-buffer buf)
	  (setq default-directory dir)
	  (unload-feature 'ls-lisp 'force)
	  (require 'em-ls)
	  (let ((orig eshell-ls-use-in-dired))
	    (customize-set-value 'eshell-ls-use-in-dired t)
	    (setq buf (dired (expand-file-name "dir*/*.txt" dir)))
	    (dired-toggle-marks)
	    (should (cdr (dired-get-marked-files)))))
      (unload-feature 'em-ls 'force)
      (delete-directory dir 'recursive)
      (when (buffer-live-p buf) (kill-buffer buf)))))


(provide 'dired-tests)
;; dired-tests.el ends here