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-;;; viper-tests.el --- tests for viper.
-
-;; Copyright (C) 2016 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 <http://www.gnu.org/licenses/>.
-
-;;; Commentary:
-
-;;; Code:
-
-
-(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!)."
- (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)
- ;; viper loads this even with -q so make sure it's empty!
- (viper-custom-file-name (make-temp-file "viper-tests" nil ".elc"))
- (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)
- (delete-file viper-custom-file-name)
- (switch-to-buffer before-buffer))))
-
-(ert-deftest viper-test-go ()
- "Test that this file is running."
- (should t))
-
-(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 behaviour.
-
-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 behaviour.
-
-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 behaviour.
-
-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