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;;; test-dirvish-config-mark-all-visible.el --- Tests for marking all visible files -*- lexical-binding: t; -*-
;;; Commentary:
;; `cj/dired-mark-all-visible-files' marks every regular file in a Dired
;; buffer and leaves directories unmarked. The loop is exercised here against
;; a real Dired buffer over a temp directory (the line predicate has its own
;; unit tests). The regression this pins: `dired-mark' advances point itself,
;; so an extra `forward-line' skipped every other file and only alternate files
;; got marked.
;;; Code:
(require 'ert)
(require 'package)
(setq package-user-dir (expand-file-name "elpa" user-emacs-directory))
(package-initialize)
(add-to-list 'load-path (expand-file-name "modules" user-emacs-directory))
(add-to-list 'load-path (expand-file-name "elpa/dirvish-2.3.0/extensions"
user-emacs-directory))
(require 'user-constants)
(require 'keybindings)
(require 'dirvish-config)
(require 'dired)
(defun test-dirvish--marked-count ()
"Return the number of `*'-marked lines in the current Dired buffer."
(let ((n 0))
(save-excursion
(goto-char (point-min))
(while (not (eobp))
(when (looking-at-p "^\\*") (setq n (1+ n)))
(forward-line 1)))
n))
(ert-deftest test-dirvish-mark-all-visible-marks-every-file ()
"Normal: all regular files get marked, no skips.
Three files plus a subdirectory; the count of marks must equal the file count."
(let ((dir (make-temp-file "dirvish-mark-test-" t)))
(unwind-protect
(progn
(dolist (f '("a.txt" "b.txt" "c.txt"))
(write-region "" nil (expand-file-name f dir)))
(make-directory (expand-file-name "subdir" dir))
(let ((buf (dired-noselect dir)))
(unwind-protect
(with-current-buffer buf
(cj/dired-mark-all-visible-files)
(should (= 3 (test-dirvish--marked-count))))
(kill-buffer buf))))
(delete-directory dir t))))
(ert-deftest test-dirvish-mark-all-visible-leaves-directories-unmarked ()
"Boundary: a directory line is never marked."
(let ((dir (make-temp-file "dirvish-mark-test-" t)))
(unwind-protect
(progn
(write-region "" nil (expand-file-name "only.txt" dir))
(make-directory (expand-file-name "adir" dir))
(let ((buf (dired-noselect dir)))
(unwind-protect
(with-current-buffer buf
(cj/dired-mark-all-visible-files)
(should (= 1 (test-dirvish--marked-count))))
(kill-buffer buf))))
(delete-directory dir t))))
(provide 'test-dirvish-config-mark-all-visible)
;;; test-dirvish-config-mark-all-visible.el ends here
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