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;;; test-modeline-config-buffer-status.el --- buffer-status segment -*- lexical-binding: t; -*-
;;; Commentary:
;; Tests for `cj/--modeline-buffer-status': the modified / read-only
;; indicator. Read-only wins over modified; the modified dot shows only
;; for file-visiting buffers (special buffers are perpetually modified
;; and would be noise); clean file buffers show nothing.
;;; Code:
(require 'ert)
(add-to-list 'load-path (expand-file-name "modules" user-emacs-directory))
(require 'modeline-config)
(ert-deftest test-modeline-config-buffer-status-modified-file-shows-dot ()
"Normal: a modified file-visiting buffer returns the warning-faced dot."
(let ((file (make-temp-file "modeline-status-" nil ".txt")))
(unwind-protect
(with-current-buffer (find-file-noselect file)
(insert "x")
(let ((status (cj/--modeline-buffer-status)))
(should (stringp status))
(should (string-match-p "●" status))
(should (eq (get-text-property
(string-match "●" status) 'face status)
'warning)))
(set-buffer-modified-p nil)
(kill-buffer))
(delete-file file))))
(ert-deftest test-modeline-config-buffer-status-clean-file-nil ()
"Normal: an unmodified file-visiting buffer returns nil."
(let ((file (make-temp-file "modeline-status-" nil ".txt")))
(unwind-protect
(with-current-buffer (find-file-noselect file)
(should-not (cj/--modeline-buffer-status))
(kill-buffer))
(delete-file file))))
(ert-deftest test-modeline-config-buffer-status-read-only-shows-lock ()
"Normal: a read-only buffer returns the read-only indicator."
(with-temp-buffer
(setq buffer-read-only t)
(let ((status (cj/--modeline-buffer-status)))
(should (stringp status))
(should (> (length status) 0)))))
(ert-deftest test-modeline-config-buffer-status-read-only-wins-over-modified ()
"Boundary: read-only + modified shows the read-only indicator, not the dot."
(let ((file (make-temp-file "modeline-status-" nil ".txt")))
(unwind-protect
(with-current-buffer (find-file-noselect file)
(insert "x")
(setq buffer-read-only t)
(let ((status (cj/--modeline-buffer-status)))
(should (stringp status))
(should-not (string-match-p "●" status)))
(setq buffer-read-only nil)
(set-buffer-modified-p nil)
(kill-buffer))
(delete-file file))))
(ert-deftest test-modeline-config-buffer-status-modified-non-file-nil ()
"Boundary: a modified non-file buffer (scratch-like) returns nil."
(with-temp-buffer
(insert "x")
(should (buffer-modified-p))
(should-not (cj/--modeline-buffer-status))))
(provide 'test-modeline-config-buffer-status)
;;; test-modeline-config-buffer-status.el ends here
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