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cc1c46e412
* src/cmds.c (Fforward_line): Support bignum arg. (scan_newline): Return void since no caller was using the return value. * src/search.c (find_newline, scan_newline_from_point) (find_newline1): Return the number of newlines counted, not the count shortage, so that the return value always fits in ptrdiff_t even if the original count was a bignum. All callers changed. * test/src/cmds-tests.el (forward-line-with-bignum): New test.
42 lines
1.4 KiB
EmacsLisp
42 lines
1.4 KiB
EmacsLisp
;;; cmds-tests.el --- Testing some Emacs commands
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;; Copyright (C) 2013-2019 Free Software Foundation, Inc.
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;; Author: Nicolas Richard <youngfrog@members.fsf.org>
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;; Keywords:
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;; This program is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; This program is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with this program. If not, see <https://www.gnu.org/licenses/>.
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;;; Commentary:
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;;
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;;; Code:
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(ert-deftest self-insert-command-with-negative-argument ()
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"Test `self-insert-command' with a negative argument."
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(let ((last-command-event ?a))
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(should-error (self-insert-command -1))))
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(ert-deftest forward-line-with-bignum ()
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(with-temp-buffer
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(insert "x\n")
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(let ((shortage (forward-line (1- most-negative-fixnum))))
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(should (= shortage most-negative-fixnum)))
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(let ((shortage (forward-line (+ 2 most-positive-fixnum))))
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(should (= shortage (1+ most-positive-fixnum))))))
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(provide 'cmds-tests)
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;;; cmds-tests.el ends here
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