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;;; wallpaper-tests.el --- tests for wallpaper.el -*- lexical-binding: t -*-
;; Copyright (C) 2022-2025 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 'wallpaper)
(ert-deftest wallpaper--find-setter ()
(skip-unless (and (executable-find "touch")
(wallpaper--use-default-set-function-p)))
(let (wallpaper--current-setter
(wallpaper--default-setters
(wallpaper--default-methods-create
("touch" "touch" "/tmp/touched"))))
(should (wallpaper--find-setter))))
(ert-deftest wallpaper--find-setter/call-predicate ()
(skip-unless (and (executable-find "touch")
(wallpaper--use-default-set-function-p)))
(let* ( wallpaper--current-setter called
(wallpaper--default-setters
(wallpaper--default-methods-create
("touch" "touch" "/tmp/touched"
:predicate (lambda () (setq called t))))))
(should-not called)
(wallpaper--find-setter)
(should called)))
(ert-deftest wallpaper--find-setter/set-current-setter ()
(skip-unless (and (executable-find "touch")
(wallpaper--use-default-set-function-p)))
(let (wallpaper--current-setter
(wallpaper--default-setters
(wallpaper--default-methods-create
("touch" "touch" "/tmp/touched"))))
(wallpaper--find-setter)
(should wallpaper--current-setter)))
(ert-deftest wallpaper-set/runs-command ()
(skip-unless (and (executable-find "touch")
(wallpaper--use-default-set-function-p)))
(ert-with-temp-file fil-jpg
:suffix ".jpg"
(ert-with-temp-file fil
(let* ( wallpaper--current-setter
(wallpaper--default-setters
(wallpaper--default-methods-create
("touch" "touch" fil)))
(wallpaper-command (wallpaper--find-command))
(wallpaper-command-args (wallpaper--find-command-args)))
(delete-file fil)
(let ((process (wallpaper-set fil-jpg)))
(while (process-live-p process)
(sit-for 0.001))
;; Touch has recreated the file:
(should (file-exists-p fil)))))))
(ert-deftest wallpaper-set/runs-command/detach ()
(skip-unless (and (executable-find "touch")
(wallpaper--use-default-set-function-p)))
(ert-with-temp-file fil-jpg
:suffix ".jpg"
(ert-with-temp-file fil
(let* ( wallpaper--current-setter
(wallpaper--default-setters
(wallpaper--default-methods-create
("touch" "touch" fil
:detach t)))
(wallpaper-command (wallpaper--find-command))
(wallpaper-command-args (wallpaper--find-command-args)))
(delete-file fil)
(wallpaper-set fil-jpg)
(while (not (file-exists-p fil))
(sit-for 0.001))
;; Touch has recreated the file:
(should (file-exists-p fil))))))
(ert-deftest wallpaper-set/calls-init-action ()
(skip-unless (and (executable-find "touch")
(wallpaper--use-default-set-function-p)))
(ert-with-temp-file fil-jpg
:suffix ".jpg"
(ert-with-temp-file fil
(let* ( wallpaper--current-setter called
(wallpaper--default-setters
(wallpaper--default-methods-create
("touch" "touch" fil
:init-action (lambda () (setq called t)))))
(wallpaper-command (wallpaper--find-command))
(wallpaper-command-args (wallpaper--find-command-args))
process)
(should (functionp (wallpaper-setter-init-action wallpaper--current-setter)))
(setq process (wallpaper-set fil-jpg))
;; Wait for "touch" process to exit so temp file is removed.
(accept-process-output process 3)
(should called)))))
(ert-deftest wallpaper-set/calls-wallpaper-set-function ()
(skip-unless (and (executable-find "touch")
(wallpaper--use-default-set-function-p)))
(ert-with-temp-file fil-jpg
:suffix ".jpg"
(let* ( wallpaper--current-setter called
(wallpaper--default-setters
(wallpaper--default-methods-create
("touch" "touch" "foo")))
(wallpaper-set-function
(lambda (file) (setq called file))))
(wallpaper--find-setter)
(wallpaper-set fil-jpg)
(should (equal called fil-jpg)))))
(ert-deftest wallpaper--find-command/return-string ()
(let ((cmd (wallpaper--find-command)))
(should (or (not cmd)
(stringp cmd)))))
(ert-deftest wallpaper--find-command-args/return-list ()
(let ((cmdargs (wallpaper--find-command-args)))
(if (functionp cmdargs)
(setq cmdargs (funcall cmdargs)))
(should (or (not cmdargs)
(listp cmdargs)))))
(ert-deftest wallpaper--image-file-regexp/return-string ()
(should (stringp (wallpaper--image-file-regexp))))
(ert-deftest wallpaper--get-default-file/empty-gives-nil ()
(with-temp-buffer
(should-not (wallpaper--get-default-file))))
(ert-deftest wallpaper--get-default-file/visiting-file ()
(ert-with-temp-file _
:buffer buf
:suffix (format ".%s" (car image-file-name-extensions))
(with-current-buffer buf
(should (wallpaper--get-default-file)))))
(ert-deftest wallpaper--get-default-file/file-at-point ()
;; ffap needs the file to exist
(ert-with-temp-file fil
:buffer buf
:suffix (format ".%s" (car image-file-name-extensions))
(with-current-buffer buf
(insert fil)
(should (stringp (wallpaper--get-default-file))))))
(ert-deftest wallpaper--format-arg/filename ()
(should (file-name-absolute-p (wallpaper--format-arg "%f" "foo.jpg"))))
(ert-deftest wallpaper--format-arg/filename-hex ()
(should (equal (wallpaper--format-arg "%F" "foo bar åäö.jpg")
"foo%20bar%20%C3%A5%C3%A4%C3%B6.jpg")))
(ert-deftest wallpaper--format-arg/width ()
(skip-unless noninteractive)
(should (equal (wallpaper--format-arg "%w" "foo.jpg")
(number-to-string wallpaper-default-width))))
(ert-deftest wallpaper--format-arg/height ()
(skip-unless noninteractive)
(should (equal (wallpaper--format-arg "%h" "foo.jpg")
(number-to-string wallpaper-default-height))))
(ert-deftest wallpaper--format-arg/screen ()
(skip-unless noninteractive)
(should (equal (wallpaper--format-arg "%S" "foo.jpg") "0")))
(ert-deftest wallpaper--format-arg/monitor ()
(skip-unless noninteractive)
(should (equal (wallpaper--format-arg "%M" "foo.jpg") "0")))
(ert-deftest wallpaper--format-arg/workspace ()
(skip-unless noninteractive)
(should (equal (wallpaper--format-arg "%W" "foo.jpg") "0")))
;;; wallpaper-tests.el ends here
|
