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| | ;;; simple-test.el --- Tests for simple.el -*- lexical-binding: t; -*-
;; Copyright (C) 2015 Free Software Foundation, Inc.
;; Author: Artur Malabarba <bruce.connor.am@gmail.com>
;; This program 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.
;; This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
;;; Code:
(require 'ert)
(defvar simple-tests-data-directory
(expand-file-name "data/simple" (getenv "EMACS_TEST_DIRECTORY"))
"Directory containing simple.el test data.")
(defmacro simple-test--dummy-buffer (&rest body)
(declare (indent 0)
(debug t))
`(with-temp-buffer
(emacs-lisp-mode)
(setq indent-tabs-mode nil)
(insert "(a b")
(save-excursion (insert " c d)"))
,@body
(cons (buffer-substring (point-min) (point))
(buffer-substring (point) (point-max)))))
\f
;;; `newline'
(ert-deftest newline ()
(should-error (newline -1))
(should (equal (simple-test--dummy-buffer (newline 1))
'("(a b\n" . " c d)")))
(should (equal (simple-test--dummy-buffer
(electric-indent-mode -1)
(call-interactively #'newline))
'("(a b\n" . " c d)")))
(should (equal (simple-test--dummy-buffer
(let ((current-prefix-arg 5))
(call-interactively #'newline)))
'("(a b\n\n\n\n\n" . " c d)")))
(should (equal (simple-test--dummy-buffer (newline 5))
'("(a b\n\n\n\n\n" . " c d)")))
(should (equal (simple-test--dummy-buffer
(forward-char 1)
(newline 1))
'("(a b \n" . "c d)"))))
(ert-deftest newline-indent ()
(should (equal (simple-test--dummy-buffer
(electric-indent-local-mode 1)
(newline 1))
'("(a b\n" . " c d)")))
(should (equal (simple-test--dummy-buffer
(electric-indent-local-mode 1)
(newline 1 'interactive))
'("(a b\n " . "c d)")))
(should (equal (simple-test--dummy-buffer
(electric-indent-local-mode 1)
(let ((current-prefix-arg nil))
(call-interactively #'newline)
(call-interactively #'newline)))
'("(a b\n\n " . "c d)")))
(should (equal (simple-test--dummy-buffer
(electric-indent-local-mode 1)
(newline 5 'interactive))
'("(a b\n\n\n\n\n " . "c d)")))
(should (equal (simple-test--dummy-buffer
(electric-indent-local-mode 1)
(let ((current-prefix-arg 5))
(call-interactively #'newline)))
'("(a b\n\n\n\n\n " . "c d)")))
(should (equal (simple-test--dummy-buffer
(forward-char 1)
(electric-indent-local-mode 1)
(newline 1 'interactive))
'("(a b\n " . "c d)"))))
\f
;;; `open-line'
(ert-deftest open-line ()
(should-error (open-line -1))
(should-error (open-line))
(should (equal (simple-test--dummy-buffer (open-line 1))
'("(a b" . "\n c d)")))
(should (equal (simple-test--dummy-buffer
(electric-indent-mode -1)
(call-interactively #'open-line))
'("(a b" . "\n c d)")))
(should (equal (simple-test--dummy-buffer
(let ((current-prefix-arg 5))
(call-interactively #'open-line)))
'("(a b" . "\n\n\n\n\n c d)")))
(should (equal (simple-test--dummy-buffer (open-line 5))
'("(a b" . "\n\n\n\n\n c d)")))
(should (equal (simple-test--dummy-buffer
(forward-char 1)
(open-line 1))
'("(a b " . "\nc d)"))))
(ert-deftest open-line-margin-and-prefix ()
(should (equal (simple-test--dummy-buffer
(let ((left-margin 10))
(open-line 3)))
'("(a b" . "\n\n\n c d)")))
(should (equal (simple-test--dummy-buffer
(forward-line 0)
(let ((left-margin 2))
(open-line 1)))
'(" " . "\n (a b c d)")))
(should (equal (simple-test--dummy-buffer
(let ((fill-prefix "- - "))
(open-line 1)))
'("(a b" . "\n c d)")))
(should (equal (simple-test--dummy-buffer
(forward-line 0)
(let ((fill-prefix "- - "))
(open-line 1)))
'("- - " . "\n(a b c d)"))))
(ert-deftest open-line-indent ()
(should (equal (simple-test--dummy-buffer
(electric-indent-local-mode 1)
(open-line 1))
'("(a b" . "\n c d)")))
(should (equal (simple-test--dummy-buffer
(electric-indent-local-mode 1)
(open-line 1 'interactive))
'("(a b" . "\n c d)")))
(should (equal (simple-test--dummy-buffer
(electric-indent-local-mode 1)
(let ((current-prefix-arg nil))
(call-interactively #'open-line)
(call-interactively #'open-line)))
'("(a b" . "\n\n c d)")))
(should (equal (simple-test--dummy-buffer
(electric-indent-local-mode 1)
(open-line 5 'interactive))
'("(a b" . "\n\n\n\n\n c d)")))
(should (equal (simple-test--dummy-buffer
(electric-indent-local-mode 1)
(let ((current-prefix-arg 5))
(call-interactively #'open-line)))
'("(a b" . "\n\n\n\n\n c d)")))
(should (equal (simple-test--dummy-buffer
(forward-char 1)
(electric-indent-local-mode 1)
(open-line 1 'interactive))
'("(a b" . "\n c d)"))))
(ert-deftest open-line-hook ()
(let* ((x 0)
(inc (lambda () (setq x (1+ x)))))
(simple-test--dummy-buffer
(add-hook 'post-self-insert-hook inc nil 'local)
(open-line 1))
(should (= x 0))
(simple-test--dummy-buffer
(add-hook 'post-self-insert-hook inc nil 'local)
(open-line 1 'interactive))
(should (= x 1))
(unwind-protect
(progn
(add-hook 'post-self-insert-hook inc)
(simple-test--dummy-buffer
(open-line 1))
(should (= x 1))
(simple-test--dummy-buffer
(open-line 10 'interactive))
(should (= x 2)))
(remove-hook 'post-self-insert-hook inc))))
\f
;;; `delete-trailing-whitespace'
(ert-deftest simple-delete-trailing-whitespace ()
(defvar python-indent-guess-indent-offset) ; to avoid a warning
(let ((python (featurep 'python))
(python-indent-guess-indent-offset nil)
(delete-trailing-lines t))
(unwind-protect
(with-temp-buffer
(python-mode)
(insert-file-contents (expand-file-name "bug-21766.py"
simple-tests-data-directory))
(delete-trailing-whitespace)
(should (equal (count-lines (point-min) (point-max)) 3)))
;; Let's clean up if running interactive
(unless (or noninteractive python)
(unload-feature 'python)))))
(provide 'simple-test)
;;; simple-test.el ends here
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