158 lines
4.3 KiB
EmacsLisp
158 lines
4.3 KiB
EmacsLisp
;;; viper-tests.el --- tests for viper. -*- lexical-binding:t -*-
|
|
|
|
;; Copyright (C) 2016-2024 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/>.
|
|
|
|
;;; Commentary:
|
|
|
|
;;; Code:
|
|
|
|
(require 'ert)
|
|
(require 'ert-x)
|
|
(require 'viper)
|
|
|
|
(defun viper-test-undo-kmacro (kmacro)
|
|
"In a clean viper buffer, run KMACRO and return `buffer-string'.
|
|
|
|
This function makes as many attempts as possible to clean up
|
|
after itself, although it will leave a buffer called
|
|
*viper-test-buffer* if it fails (this is deliberate!)."
|
|
(ert-with-temp-file viper-custom-file-name
|
|
;; viper loads this even with -q so make sure it's empty!
|
|
:prefix "emacs-viper-tests" :suffix ".elc"
|
|
(let (;; Viper just turns itself off during batch use.
|
|
(noninteractive nil)
|
|
;; Switch off start up message or it will chew the key presses.
|
|
(viper-inhibit-startup-message 't)
|
|
;; Select an expert-level for the same reason.
|
|
(viper-expert-level 5)
|
|
(before-buffer (current-buffer)))
|
|
(unwind-protect
|
|
(progn
|
|
;; viper-mode is essentially global, so set it here.
|
|
(viper-mode)
|
|
;; We must switch to buffer because we are using a keyboard macro
|
|
;; which appears to not go to the current-buffer but what ever is
|
|
;; currently taking keyboard events. We use a named buffer because
|
|
;; then we can see what it in it if it all goes wrong.
|
|
(switch-to-buffer
|
|
(get-buffer-create
|
|
"*viper-test-buffer*"))
|
|
(erase-buffer)
|
|
;; The new buffer fails to enter vi state so set it.
|
|
(viper-change-state-to-vi)
|
|
;; Run the macro.
|
|
(execute-kbd-macro kmacro)
|
|
(let ((rtn
|
|
(buffer-substring-no-properties
|
|
(point-min)
|
|
(point-max))))
|
|
;; Kill the buffer iff the macro succeeds.
|
|
(kill-buffer)
|
|
rtn))
|
|
;; Switch everything off and restore the buffer.
|
|
(toggle-viper-mode)
|
|
(switch-to-buffer before-buffer)))))
|
|
|
|
(ert-deftest viper-test-fix ()
|
|
"Test that the viper kmacro fixture is working."
|
|
(should
|
|
(viper-test-undo-kmacro [])))
|
|
|
|
(ert-deftest viper-test-undo-1 ()
|
|
"Test for VI like undo behavior.
|
|
|
|
Insert 1, then 2 on consecutive lines, followed by undo. This
|
|
should leave just 1 in the buffer.
|
|
|
|
Test for Bug #22295"
|
|
(should
|
|
(equal
|
|
"1\n"
|
|
(viper-test-undo-kmacro
|
|
[
|
|
?a
|
|
?1
|
|
escape
|
|
?o
|
|
?2
|
|
escape
|
|
?u
|
|
]
|
|
))))
|
|
|
|
(ert-deftest viper-test-undo-2 ()
|
|
"Test for VI like undo behavior.
|
|
|
|
Insert \"1 2 3 4 5\" then delete the 2, then the 4, and undo.
|
|
Should restore the 4, but leave the 2 deleted.
|
|
|
|
Test for Bug #22295"
|
|
(should
|
|
(equal
|
|
"1 3 4 5\n"
|
|
(viper-test-undo-kmacro
|
|
[
|
|
?i
|
|
?1 ? ?2 ? ?3 ? ?4 ? ?5
|
|
escape
|
|
?F ?2 ?d ?w
|
|
?w ?d ?w
|
|
?u
|
|
]))))
|
|
|
|
(ert-deftest viper-test-undo-3 ()
|
|
"Test for VI like undo behavior.
|
|
|
|
Insert \"1 2 3 4 5 6\", delete the 2, then the 3 4 and 5.
|
|
Should restore the 3 4 and 5 but not the 2.
|
|
|
|
Test for Bug #22295"
|
|
(should
|
|
(equal
|
|
"1 3 4 5 6\n"
|
|
(viper-test-undo-kmacro
|
|
[
|
|
;; Insert this lot.
|
|
?i ?1 ? ?2 ? ?3 ? ?4 ? ?5 ? ?6
|
|
escape
|
|
;; Start of line.
|
|
?0
|
|
;; Move to 2, delete
|
|
?w ?d ?w
|
|
;; Delete 3 4 5
|
|
?. ?. ?.
|
|
;; Undo del 5, then
|
|
?u ?. ?.
|
|
]))))
|
|
|
|
|
|
(ert-deftest viper-test-undo-4()
|
|
(should
|
|
(equal
|
|
""
|
|
(viper-test-undo-kmacro
|
|
[
|
|
?i ?1 escape
|
|
?o ?2 escape
|
|
?o ?3 escape
|
|
?u ?. ?.
|
|
])
|
|
)))
|
|
|
|
;;; viper-tests.el ends here
|