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| | ;;; lisp-mode-tests.el --- Test Lisp editing commands -*- lexical-binding: t; -*-
;; Copyright (C) 2017 Free Software Foundation, Inc.
;; 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/>.
;;; Code:
(require 'ert)
(require 'cl-lib)
(require 'lisp-mode)
(defconst lisp-mode-tests--correctly-indented-sexp "\
\(a
(prog1
(prog1
1
2)
2)
(fun arg1
arg2)
(1
\"string
noindent\" (\"string2
noindent\" 3
4)
2) ; comment
;; comment
b)")
(ert-deftest indent-sexp ()
"Test basics of \\[indent-sexp]."
(with-temp-buffer
(insert lisp-mode-tests--correctly-indented-sexp)
(goto-char (point-min))
(let ((indent-tabs-mode nil)
(correct lisp-mode-tests--correctly-indented-sexp))
(dolist (mode '(fundamental-mode emacs-lisp-mode))
(funcall mode)
(indent-sexp)
;; Don't mess up correctly indented code.
(should (string= (buffer-string) correct))
;; Correctly add indentation.
(save-excursion
(while (not (eobp))
(delete-horizontal-space)
(forward-line)))
(indent-sexp)
(should (equal (buffer-string) correct))
;; Correctly remove indentation.
(save-excursion
(let ((n 0))
(while (not (eobp))
(unless (looking-at "noindent\\|^[[:blank:]]*$")
(insert (make-string n ?\s)))
(cl-incf n)
(forward-line))))
(indent-sexp)
(should (equal (buffer-string) correct))))))
(ert-deftest indent-subsexp ()
"Make sure calling `indent-sexp' inside a sexp works."
(with-temp-buffer
(insert "\
\(d1 xx
(d2 yy
zz)
11)")
(let ((correct (buffer-string)))
(search-backward "d2")
(up-list -1)
(indent-sexp)
(should (equal (buffer-string) correct))
(backward-sexp)
(end-of-line)
(indent-sexp)
(should (equal (buffer-string) correct)))))
(ert-deftest indent-sexp-in-string ()
"Make sure calling `indent-sexp' inside a string works."
;; See https://debbugs.gnu.org/cgi/bugreport.cgi?bug=21343.
(with-temp-buffer
(emacs-lisp-mode)
(insert "\";\"")
(let ((correct (buffer-string)))
(search-backward ";")
(indent-sexp)
(should (equal (buffer-string) correct)))))
(ert-deftest indent-sexp-stop ()
"Make sure `indent-sexp' stops at the end of the sexp."
;; See https://debbugs.gnu.org/cgi/bugreport.cgi?bug=26878.
(with-temp-buffer
(emacs-lisp-mode)
(insert "(a ()\n)")
(let ((original (buffer-string)))
(search-backward "a ")
(goto-char (match-end 0))
(indent-sexp)
;; The final paren should not be indented, because the sexp
;; we're indenting ends on the previous line.
(should (equal (buffer-string) original)))))
(ert-deftest lisp-indent-region ()
"Test basics of `lisp-indent-region'."
(with-temp-buffer
(insert lisp-mode-tests--correctly-indented-sexp)
(goto-char (point-min))
(let ((indent-tabs-mode nil)
(correct lisp-mode-tests--correctly-indented-sexp))
(emacs-lisp-mode)
(indent-region (point-min) (point-max))
;; Don't mess up correctly indented code.
(should (string= (buffer-string) correct))
;; Correctly add indentation.
(save-excursion
(while (not (eobp))
(delete-horizontal-space)
(forward-line)))
(indent-region (point-min) (point-max))
(should (equal (buffer-string) correct))
;; Correctly remove indentation.
(save-excursion
(let ((n 0))
(while (not (eobp))
(unless (looking-at "noindent\\|^[[:blank:]]*$")
(insert (make-string n ?\s)))
(cl-incf n)
(forward-line))))
(indent-region (point-min) (point-max))
(should (equal (buffer-string) correct)))))
(ert-deftest lisp-indent-region-defun-with-docstring ()
"Test Bug#26619."
(with-temp-buffer
(insert "\
\(defun test ()
\"This is a test.
Test indentation in emacs-lisp-mode\"
(message \"Hi!\"))")
(let ((indent-tabs-mode nil)
(correct (buffer-string)))
(emacs-lisp-mode)
(indent-region (point-min) (point-max))
(should (equal (buffer-string) correct)))))
(ert-deftest lisp-indent-region-open-paren ()
(with-temp-buffer
(insert "\
\(with-eval-after-load 'foo
(setq bar `(
baz)))")
(let ((indent-tabs-mode nil)
(correct (buffer-string)))
(emacs-lisp-mode)
(indent-region (point-min) (point-max))
(should (equal (buffer-string) correct)))))
(ert-deftest lisp-indent-region-in-sexp ()
(with-temp-buffer
(insert "\
\(when t
(when t
(list 1 2 3)
'etc)
(quote etc)
(quote etc))")
(let ((indent-tabs-mode nil)
(correct (buffer-string)))
(emacs-lisp-mode)
(search-backward "1")
(indent-region (point) (point-max))
(should (equal (buffer-string) correct)))))
(provide 'lisp-mode-tests)
;;; lisp-mode-tests.el ends here
|