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;;; mouse-tests.el --- unit tests for mouse.el -*- lexical-binding: t; -*-
;; Copyright (C) 2016-2025 Free Software Foundation, Inc.
;; Author: Philipp Stephani <phst@google.com>
;; 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/>.
;;; Commentary:
;; Unit tests for lisp/mouse.el.
;;; Code:
(ert-deftest mouse-test-mouse-double-click-time ()
(let ((double-click-time 500))
(should (= (mouse-double-click-time) 500)))
(let ((double-click-time 0))
(should (= (mouse-double-click-time) 0)))
(let ((double-click-time -500))
(should (= (mouse-double-click-time) 0)))
(let ((double-click-time nil))
(should (= (mouse-double-click-time) 0)))
(let ((double-click-time t))
(should (numberp (mouse-double-click-time))))
(let ((double-click-time '(invalid)))
(should (= (mouse-double-click-time) 0))))
(ert-deftest bug23288-use-return-value ()
"If `mouse-on-link-p' returns a string, its first character is used."
(cl-letf ((unread-command-events '((down-mouse-1 nil 1) (mouse-1 nil 1)))
(mouse-1-click-follows-link t)
(mouse-1-click-in-non-selected-windows t)
((symbol-function 'mouse-on-link-p) (lambda (_pos) "abc")))
(should (eq 'down-mouse-1 (car-safe (aref (read-key-sequence "") 0))))
(should (eq ?a (aref (read-key-sequence "") 0)))))
(ert-deftest bug23288-translate-to-mouse-2 ()
"If `mouse-on-link-p' doesn't return a string or vector,
translate `mouse-1' events into `mouse-2' events."
(cl-letf ((unread-command-events '((down-mouse-1 nil 1) (mouse-1 nil 1)))
(mouse-1-click-follows-link t)
(mouse-1-click-in-non-selected-windows t)
((symbol-function 'mouse-on-link-p) (lambda (_pos) t)))
(should (eq 'down-mouse-1 (car-safe (aref (read-key-sequence "") 0))))
(should (eq 'mouse-2 (car-safe (aref (read-key-sequence "") 0))))))
(ert-deftest bug26816-mouse-frame-movement ()
"Mouse moves relative to frame."
(skip-unless (display-graphic-p))
(let ((frame (selected-frame)))
(set-mouse-position frame 0 0)
(should (equal (mouse-position)
(cons frame (cons 0 0))))))
(ert-deftest context-menu-map-remove-consecutive-separators ()
"Check that `context-menu-map' removes consecutive separators."
;; Both separators after the overall prompt string.
(let ((context-menu-functions
'((lambda (menu _click)
(define-key-after menu [foo-item] '(menu-item "Foo" identity))
(define-key-after menu [separator-1] menu-bar-separator)
(define-key-after menu [separator-2] menu-bar-separator)
(define-key-after menu [bar-item] '(menu-item "Bar" identity))
menu))))
(should (equal `(keymap
"Context Menu"
(foo-item menu-item "Foo" identity)
(separator-1 . ,menu-bar-separator)
(bar-item menu-item "Bar" identity))
(context-menu-map))))
;; Both separators before the overall prompt string.
(let ((context-menu-functions
'((lambda (menu _click)
(define-key menu [bar-item] '(menu-item "Bar" identity))
(define-key menu [separator-2] menu-bar-separator)
(define-key menu [separator-1] menu-bar-separator)
(define-key menu [foo-item] '(menu-item "Foo" identity))
menu))))
(should (equal `(keymap
(foo-item menu-item "Foo" identity)
(separator-1 . ,menu-bar-separator)
(bar-item menu-item "Bar" identity)
"Context Menu")
(context-menu-map))))
;; First separator before and second separator after the overall
;; prompt string.
(let ((context-menu-functions
'((lambda (menu _click)
(define-key-after menu [separator-2] menu-bar-separator)
(define-key-after menu [bar-item] '(menu-item "Bar" identity))
(define-key menu [separator-1] menu-bar-separator)
(define-key menu [foo-item] '(menu-item "Foo" identity))
menu))))
(should (equal `(keymap
(foo-item menu-item "Foo" identity)
(separator-1 . ,menu-bar-separator)
"Context Menu"
(bar-item menu-item "Bar" identity))
(context-menu-map))))
;; Three consecutive separators.
(let ((context-menu-functions
'((lambda (menu _click)
(define-key-after menu [foo-item] '(menu-item "Foo" identity))
(define-key-after menu [separator-1] menu-bar-separator)
(define-key-after menu [separator-2] menu-bar-separator)
(define-key-after menu [separator-3] menu-bar-separator)
(define-key-after menu [bar-item] '(menu-item "Bar" identity))
menu))))
(should (equal `(keymap
"Context Menu"
(foo-item menu-item "Foo" identity)
(separator-1 . ,menu-bar-separator)
(bar-item menu-item "Bar" identity))
(context-menu-map)))))
(ert-deftest context-menu-map-remove-separators-at-beginning-or-end ()
"Check that `context-menu-map' removes separators at the
beginning or end of the menu."
;; Menus with only separators.
(let ((test-functions
'(;; Separator before the overall prompt string.
(lambda (menu _click)
(define-key menu [separator] menu-bar-separator)
menu)
;; Separator after the overall prompt string.
(lambda (menu _click)
(define-key-after menu [separator] menu-bar-separator)
menu)
;; Begin and end separators before the overall prompt string.
(lambda (menu _click)
(define-key menu [end-separator] menu-bar-separator)
(define-key menu [begin-separator] menu-bar-separator)
menu)
;; Begin and end separators after the overall prompt string.
(lambda (menu _click)
(define-key-after menu [begin-separator] menu-bar-separator)
(define-key-after menu [end-separator] menu-bar-separator)
menu)
;; Begin separator before and end separator after the
;; overall prompt string.
(lambda (menu _click)
(define-key menu [begin-separator] menu-bar-separator)
(define-key-after menu [end-separator] menu-bar-separator)
menu))))
(dolist (fun test-functions)
(let ((context-menu-functions (list fun)))
(should (equal '(keymap "Context Menu")
(context-menu-map))))))
;; Menus with separators at beginning and/or end with a menu-item
;; before the prompt string.
(let ((test-functions
'(;; Separator before the overall prompt string and the menu-item.
(lambda (menu _click)
(define-key menu [foo-item] '(menu-item "Foo" identity))
(define-key menu [separator] menu-bar-separator)
menu)
;; Separator before the overall prompt string, but after
;; the menu-item.
(lambda (menu _click)
(define-key menu [separator] menu-bar-separator)
(define-key menu [foo-item] '(menu-item "Foo" identity))
menu)
;; Separator at the end.
(lambda (menu _click)
(define-key menu [foo-item] '(menu-item "Foo" identity))
(define-key-after menu [separator] menu-bar-separator)
menu)
;; Begin separator before and end separator after the
;; overall prompt string.
(lambda (menu _click)
(define-key menu [foo-item] '(menu-item "Foo" identity))
(define-key menu [begin-separator] menu-bar-separator)
(define-key-after menu [end-separator] menu-bar-separator)
menu))))
(dolist (fun test-functions)
(let ((context-menu-functions (list fun)))
(should (equal '(keymap (foo-item menu-item "Foo" identity)
"Context Menu")
(context-menu-map))))))
;; Menus with separators at beginning and/or end with a menu-item
;; after the prompt string.
(let ((test-functions
'(;; Separator before the overall prompt string.
(lambda (menu _click)
(define-key menu [separator] menu-bar-separator)
(define-key-after menu [foo-item] '(menu-item "Foo" identity))
menu)
;; Separator after the overall prompt string, but before
;; the menu-item.
(lambda (menu _click)
(define-key-after menu [separator] menu-bar-separator)
(define-key-after menu [foo-item] '(menu-item "Foo" identity))
menu)
;; Separator at the end.
(lambda (menu _click)
(define-key-after menu [foo-item] '(menu-item "Foo" identity))
(define-key-after menu [separator] menu-bar-separator)
menu)
;; Begin and end separators after the overall prompt string.
(lambda (menu _click)
(define-key-after menu [begin-separator] menu-bar-separator)
(define-key-after menu [foo-item] '(menu-item "Foo" identity))
(define-key-after menu [end-separator] menu-bar-separator)
menu)
;; Begin separator before and end separator after the
;; overall prompt string.
(lambda (menu _click)
(define-key menu [begin-separator] menu-bar-separator)
(define-key-after menu [foo-item] '(menu-item "Foo" identity))
(define-key-after menu [end-separator] menu-bar-separator)
menu))))
(dolist (fun test-functions)
(let ((context-menu-functions (list fun)))
(should (equal '(keymap "Context Menu"
(foo-item menu-item "Foo" identity))
(context-menu-map)))))))
;;; mouse-tests.el ends here
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