538 lines
22 KiB
EmacsLisp
538 lines
22 KiB
EmacsLisp
;;; editfns-tests.el --- tests for editfns.c -*- lexical-binding:t -*-
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;; Copyright (C) 2016-2024 Free Software Foundation, Inc.
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;; This file is part of GNU Emacs.
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;; GNU Emacs 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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;; GNU Emacs 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 GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
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;;; Code:
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(require 'ert)
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(ert-deftest format-properties ()
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;; Bug #23730
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(should (equal-including-properties
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(format (propertize "%d" 'face '(:background "red")) 1)
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#("1" 0 1 (face (:background "red")))))
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(should (equal-including-properties
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(format (propertize "%2d" 'face '(:background "red")) 1)
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#(" 1" 0 2 (face (:background "red")))))
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(should (equal-including-properties
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(format (propertize "%02d" 'face '(:background "red")) 1)
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#("01" 0 2 (face (:background "red")))))
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(should (equal-including-properties
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(format (concat (propertize "%2d" 'x 'X)
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(propertize "a" 'a 'A)
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(propertize "b" 'b 'B))
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1)
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#(" 1ab" 0 2 (x X) 2 3 (a A) 3 4 (b B))))
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;; Bug #5306
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(should (equal-including-properties
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(format "%.10s"
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(concat "1234567890aaaa"
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(propertize "12345678901234567890" 'xxx 25)))
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"1234567890"))
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(should (equal-including-properties
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(format "%.10s"
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(concat "123456789"
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(propertize "12345678901234567890" 'xxx 25)))
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#("1234567891" 9 10 (xxx 25))))
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;; Bug #23859
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(should (equal-including-properties
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(format "%4s" (propertize "hi" 'face 'bold))
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#(" hi" 2 4 (face bold))))
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;; Bug #23897
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(should (equal-including-properties
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(format "%s" (concat (propertize "01234" 'face 'bold) "56789"))
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#("0123456789" 0 5 (face bold))))
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(should (equal-including-properties
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(format "%s" (concat (propertize "01" 'face 'bold)
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(propertize "23" 'face 'underline)
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"45"))
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#("012345" 0 2 (face bold) 2 4 (face underline))))
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;; The last property range is extended to include padding on the
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;; right, but the first range is not extended to the left to include
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;; padding on the left!
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(should (equal-including-properties
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(format "%12s" (concat (propertize "01234" 'face 'bold) "56789"))
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#(" 0123456789" 2 7 (face bold))))
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(should (equal-including-properties
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(format "%-12s" (concat (propertize "01234" 'face 'bold) "56789"))
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#("0123456789 " 0 5 (face bold))))
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(should (equal-including-properties
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(format "%10s" (concat (propertize "01" 'face 'bold)
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(propertize "23" 'face 'underline)
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"45"))
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#(" 012345" 4 6 (face bold) 6 8 (face underline))))
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(should (equal-including-properties
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(format "%-10s" (concat (propertize "01" 'face 'bold)
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(propertize "23" 'face 'underline)
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"45"))
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#("012345 " 0 2 (face bold) 2 4 (face underline))))
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(should (equal-including-properties
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(format "%-10s" (concat (propertize "01" 'face 'bold)
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(propertize "23" 'face 'underline)
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(propertize "45" 'face 'italic)))
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#("012345 "
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0 2 (face bold) 2 4 (face underline) 4 10 (face italic))))
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;; Bug #38191
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(should (equal-including-properties
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(format (propertize "‘foo’ %s bar" 'face 'bold) "xxx")
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#("‘foo’ xxx bar" 0 13 (face bold))))
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;; Bug #32404
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(should (equal-including-properties
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(format (concat (propertize "%s" 'face 'bold)
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""
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(propertize "%s" 'face 'error))
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"foo" "bar")
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#("foobar" 0 3 (face bold) 3 6 (face error))))
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(should (equal-including-properties
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(format (concat "%s" (propertize "%s" 'face 'error)) "foo" "bar")
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#("foobar" 3 6 (face error))))
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(should (equal-including-properties
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(format (concat "%s " (propertize "%s" 'face 'error)) "foo" "bar")
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#("foo bar" 4 7 (face error))))
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;; Bug #46317
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(let ((s (propertize "X" 'prop "val")))
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(should (equal-including-properties
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(format (concat "%3s/" s) 12)
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#(" 12/X" 4 5 (prop "val"))))
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(should (equal-including-properties
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(format (concat "%3S/" s) 12)
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#(" 12/X" 4 5 (prop "val"))))
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(should (equal-including-properties
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(format (concat "%3d/" s) 12)
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#(" 12/X" 4 5 (prop "val"))))
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(should (equal-including-properties
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(format (concat "%-3s/" s) 12)
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#("12 /X" 4 5 (prop "val"))))
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(should (equal-including-properties
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(format (concat "%-3S/" s) 12)
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#("12 /X" 4 5 (prop "val"))))
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(should (equal-including-properties
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(format (concat "%-3d/" s) 12)
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#("12 /X" 4 5 (prop "val"))))))
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(ert-deftest propertize/error-even-number-of-args ()
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"Number of args for `propertize' must be odd."
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(should-error (propertize "foo" 'bar) :type 'wrong-number-of-arguments))
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;; Tests for bug#5131.
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(defun transpose-test-reverse-word (start end)
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"Reverse characters in a word by transposing pairs of characters."
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(let ((begm (make-marker))
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(endm (make-marker)))
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(set-marker begm start)
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(set-marker endm end)
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(while (> endm begm)
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(progn (transpose-regions begm (1+ begm) endm (1+ endm) t)
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(set-marker begm (1+ begm))
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(set-marker endm (1- endm))))))
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(defun transpose-test-get-byte-positions (len)
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"Validate character position to byte position translation."
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(let ((bytes '()))
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(dotimes (pos len)
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(push (position-bytes (1+ pos)) bytes))
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(nreverse bytes)))
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(ert-deftest transpose-ascii-regions-test ()
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(with-temp-buffer
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(erase-buffer)
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(insert "abcd")
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(transpose-test-reverse-word 1 4)
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(should (string= (buffer-string) "dcba"))
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(should (equal (transpose-test-get-byte-positions 5) '(1 2 3 4 5)))))
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(ert-deftest transpose-nonascii-regions-test-1 ()
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(with-temp-buffer
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(erase-buffer)
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(insert "÷bcd")
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(transpose-test-reverse-word 1 4)
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(should (string= (buffer-string) "dcb÷"))
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(should (equal (transpose-test-get-byte-positions 5) '(1 2 3 4 6)))))
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(ert-deftest transpose-nonascii-regions-test-2 ()
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(with-temp-buffer
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(erase-buffer)
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(insert "÷ab\"äé")
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(transpose-test-reverse-word 1 6)
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(should (string= (buffer-string) "éä\"ba÷"))
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(should (equal (transpose-test-get-byte-positions 7) '(1 3 5 6 7 8 10)))))
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(ert-deftest format-c-float ()
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(should-error (format "%c" 0.5)))
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;;; Test for Bug#29609.
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(ert-deftest format-sharp-0-x ()
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(should (string-equal (format "%#08x" #x10) "0x000010"))
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(should (string-equal (format "%#05X" #x10) "0X010"))
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(should (string-equal (format "%#04x" 0) "0000")))
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;;; Tests for Bug#30408.
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(ert-deftest format-%d-large-float ()
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(should (string-equal (format "%d" 18446744073709551616.0)
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"18446744073709551616"))
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(should (string-equal (format "%d" -18446744073709551616.0)
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"-18446744073709551616")))
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(ert-deftest format-%x-large-float ()
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(should (string-equal (format "%x" 18446744073709551616.0)
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"10000000000000000")))
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(ert-deftest read-large-integer ()
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(should (eq (type-of (read (format "%d0" most-negative-fixnum))) 'integer))
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(should (eq (type-of (read (format "%+d" (* -8.0 most-negative-fixnum))))
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'integer))
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(should (eq (type-of (read (substring (format "%d" most-negative-fixnum) 1)))
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'integer))
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(should (eq (type-of (read (format "#x%x" most-negative-fixnum)))
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'integer))
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(should (eq (type-of (read (format "#o%o" most-negative-fixnum)))
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'integer))
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(should (eq (type-of (read (format "#32rG%x" most-positive-fixnum)))
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'integer))
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(dolist (fmt '("%d" "%s" "#o%o" "#x%x"))
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(dolist (val (list most-negative-fixnum (1+ most-negative-fixnum)
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-1 0 1
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(1- most-positive-fixnum) most-positive-fixnum))
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(should (eq val (read (format fmt val)))))
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(dolist (val (list (1+ most-positive-fixnum)
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(* 2 (1+ most-positive-fixnum))
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(* 4 (1+ most-positive-fixnum))
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(* 8 (1+ most-positive-fixnum))
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18446744073709551616.0))
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(should (= val (read (format fmt val)))))))
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(ert-deftest format-%o-negative-float ()
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(should (string-equal (format "%o" -1e-37) "0")))
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;; Bug#31938
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(ert-deftest format-%d-float ()
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(should (string-equal (format "%d" -1.1) "-1"))
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(should (string-equal (format "%d" -0.9) "0"))
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(should (string-equal (format "%d" -0.0) "0"))
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(should (string-equal (format "%d" 0.0) "0"))
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(should (string-equal (format "%d" 0.9) "0"))
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(should (string-equal (format "%d" 1.1) "1")))
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(ert-deftest format-with-field ()
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(should (equal (format "First argument %2$s, then %3$s, then %1$s" 1 2 3)
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"First argument 2, then 3, then 1"))
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(should (equal (format "a %2$s %3$d %1$d %2$S %3$d %4$d b" 11 "22" 33 44)
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"a 22 33 11 \"22\" 33 44 b"))
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(should (equal (format "a %08$s %0000000000000000009$s b" 1 2 3 4 5 6 7 8 9)
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"a 8 9 b"))
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(should (equal (should-error (format "a %999999$s b" 11))
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'(error "Not enough arguments for format string")))
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(should (equal (should-error (format "a %2147483647$s b"))
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'(error "Not enough arguments for format string")))
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(should (equal (should-error (format "a %9223372036854775807$s b"))
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'(error "Not enough arguments for format string")))
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(should (equal (should-error (format "a %9223372036854775808$s b"))
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'(error "Not enough arguments for format string")))
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(should (equal (should-error (format "a %18446744073709551615$s b"))
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'(error "Not enough arguments for format string")))
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(should (equal (should-error (format "a %18446744073709551616$s b"))
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'(error "Not enough arguments for format string")))
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(should (equal (should-error
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(format (format "a %%%d$d b" most-positive-fixnum)))
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'(error "Not enough arguments for format string")))
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(should (equal (should-error
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(format (format "a %%%d$d b" (+ 1.0 most-positive-fixnum))))
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'(error "Not enough arguments for format string")))
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(should (equal (should-error (format "a %$s b" 11))
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'(error "Invalid format operation %$")))
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(should (equal (should-error (format "a %-1$s b" 11))
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'(error "Invalid format operation %$")))
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(should (equal (format "%1$c %1$s" ?±) "± 177")))
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(ert-deftest replace-buffer-contents-1 ()
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(with-temp-buffer
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(insert #("source" 2 4 (prop 7)))
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(let ((source (current-buffer)))
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(with-temp-buffer
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(insert "before dest after")
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(let ((marker (set-marker (make-marker) 14)))
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(save-restriction
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(narrow-to-region 8 12)
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(replace-buffer-contents source))
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(should (equal (marker-buffer marker) (current-buffer)))
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(should (equal (marker-position marker) 16)))
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(should (equal-including-properties
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(buffer-string)
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#("before source after" 9 11 (prop 7))))
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(should (equal (point) 9))))
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(should (equal-including-properties
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(buffer-string)
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#("source" 2 4 (prop 7))))))
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(ert-deftest replace-buffer-contents-2 ()
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(with-temp-buffer
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(insert "foo bar baz qux")
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(let ((source (current-buffer)))
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(with-temp-buffer
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(insert "foo BAR baz qux")
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(replace-buffer-contents source)
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(should (equal-including-properties
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(buffer-string)
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"foo bar baz qux"))))))
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(ert-deftest replace-buffer-contents-bug31837 ()
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(switch-to-buffer "a")
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(insert-char (char-from-name "SMILE"))
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(insert "1234")
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(switch-to-buffer "b")
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(insert-char (char-from-name "SMILE"))
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(insert "5678")
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(replace-buffer-contents "a")
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(should (equal (buffer-substring-no-properties (point-min) (point-max))
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(concat (string (char-from-name "SMILE")) "1234"))))
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(ert-deftest delete-region-undo-markers-1 ()
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"Make sure we don't end up with freed markers reachable from Lisp."
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;; https://debbugs.gnu.org/cgi/bugreport.cgi?bug=30931#40
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(with-temp-buffer
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(insert "1234567890")
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(setq buffer-undo-list nil)
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(narrow-to-region 2 5)
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;; `save-restriction' in a narrowed buffer creates two markers
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;; representing the current restriction.
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(save-restriction
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(widen)
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;; Any markers *within* the deleted region are put onto the undo
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;; list.
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(delete-region 1 6))
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;; (princ (format "%S" buffer-undo-list) #'external-debugging-output)
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;; `buffer-undo-list' is now
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;; (("12345" . 1) (#<temp-marker1> . -1) (#<temp-marker2> . 1))
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;;
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;; If temp-marker1 or temp-marker2 are freed prematurely, calling
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;; `type-of' on them will cause Emacs to abort. Calling
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;; `garbage-collect' will also abort if it finds any reachable
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;; freed objects.
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(should (eq (type-of (car (nth 1 buffer-undo-list))) 'marker))
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(should (eq (type-of (car (nth 2 buffer-undo-list))) 'marker))
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(garbage-collect)))
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(ert-deftest delete-region-undo-markers-2 ()
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"Make sure we don't end up with freed markers reachable from Lisp."
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;; https://debbugs.gnu.org/cgi/bugreport.cgi?bug=30931#55
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(with-temp-buffer
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(insert "1234567890")
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(setq buffer-undo-list nil)
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;; signal_before_change creates markers delimiting a change
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;; region.
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(let ((before-change-functions
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(list (lambda (beg end)
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(delete-region (1- beg) (1+ end))))))
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(delete-region 2 5))
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;; (princ (format "%S" buffer-undo-list) #'external-debugging-output)
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;; `buffer-undo-list' is now
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;; (("678" . 1) ("12345" . 1) (#<marker in no buffer> . -1)
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;; (#<temp-marker1> . -1) (#<temp-marker2> . -4))
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;;
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;; If temp-marker1 or temp-marker2 are freed prematurely, calling
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;; `type-of' on them will cause Emacs to abort. Calling
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;; `garbage-collect' will also abort if it finds any reachable
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;; freed objects.
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(should (eq (type-of (car (nth 3 buffer-undo-list))) 'marker))
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(should (eq (type-of (car (nth 4 buffer-undo-list))) 'marker))
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(garbage-collect)))
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(ert-deftest format-bignum ()
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(let* ((s1 "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF")
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(v1 (read (concat "#x" s1)))
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(s2 "99999999999999999999999999999999")
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(v2 (read s2))
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(v3 #x-3ffffffffffffffe000000000000000))
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(should (> v1 most-positive-fixnum))
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(should (equal (format "%X" v1) s1))
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(should (> v2 most-positive-fixnum))
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(should (equal (format "%d" v2) s2))
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(should (equal (format "%d" v3) "-5316911983139663489309385231907684352"))
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(should (equal (format "%+d" v3) "-5316911983139663489309385231907684352"))
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(should (equal (format "%+d" (- v3))
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"+5316911983139663489309385231907684352"))
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(should (equal (format "% d" (- v3))
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" 5316911983139663489309385231907684352"))
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(should (equal (format "%o" v3)
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"-37777777777777777777600000000000000000000"))
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(should (equal (format "%#50.40x" v3)
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" -0x000000003ffffffffffffffe000000000000000"))
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(should (equal (format "%-#50.40x" v3)
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"-0x000000003ffffffffffffffe000000000000000 "))))
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(ert-deftest test-group-name ()
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(let ((group-name (group-name (group-gid))))
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;; If the GID has no associated entry in /etc/group there's no
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;; name for it and `group-name' should return nil!
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(should (or (null group-name) (stringp group-name))))
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(should-error (group-name 'foo))
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(cond
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((memq system-type '(windows-nt ms-dos))
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(should-not (group-name 123456789)))
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((executable-find "getent")
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(with-temp-buffer
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(let (stat name)
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(dolist (gid (list 0 1212345 (group-gid)))
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(erase-buffer)
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(setq stat (ignore-errors
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(call-process "getent" nil '(t nil) nil "group"
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(number-to-string gid))))
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(setq name (group-name gid))
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(goto-char (point-min))
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(cond ((eq stat 0)
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(if (looking-at "\\([[:alnum:]_-]+\\):")
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(should (string= (match-string 1) name))))
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((eq stat 2)
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(should-not name)))))))))
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(ert-deftest test-translate-region-internal ()
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(with-temp-buffer
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(let ((max-char #16r3FFFFF)
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(tt (make-char-table 'translation-table)))
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(aset tt max-char ?*)
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(insert max-char)
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(translate-region-internal (point-min) (point-max) tt)
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(should (string-equal (buffer-string) "*")))))
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(ert-deftest find-fields ()
|
||
(with-temp-buffer
|
||
(insert "foo" (propertize "bar" 'field 'bar) "zot")
|
||
(goto-char (point-min))
|
||
(should (= (field-beginning) (point-min)))
|
||
(should (= (field-end) 4))
|
||
(goto-char 5)
|
||
(should (= (field-beginning) 4))
|
||
(should (= (field-end) 7))
|
||
(goto-char 8)
|
||
(should (= (field-beginning) 7))
|
||
(should (= (field-end) (point-max)))))
|
||
|
||
;;; Try and catch `*-changes-functions' bugs!
|
||
|
||
(defvar sanity-check-change-functions-verbose nil)
|
||
(defvar sanity-check-change-functions-op nil)
|
||
(defmacro sanity-check-change-functions-with-op (op &rest body)
|
||
(declare (debug t) (indent 1))
|
||
`(let ((sanity-check-change-functions-op ,op))
|
||
(sanity-check--message "%S..." sanity-check-change-functions-op)
|
||
,@body
|
||
(sanity-check--message "%S...done" sanity-check-change-functions-op)))
|
||
|
||
(defun sanity-check--message (&rest args)
|
||
(if sanity-check-change-functions-verbose (apply #'message args)))
|
||
|
||
(defvar-local sanity-check-change-functions-beg 0)
|
||
(defvar-local sanity-check-change-functions-end 0)
|
||
(defvar-local sanity-check-change-functions-buffer-size nil)
|
||
(defvar sanity-check-change-functions-errors nil)
|
||
|
||
(defun sanity-check-change-functions-error (description &rest args)
|
||
(push (apply #'format description args)
|
||
sanity-check-change-functions-errors))
|
||
|
||
(defun sanity-check-change-functions-check-size ()
|
||
(sanity-check--message "Size : %S == %S"
|
||
sanity-check-change-functions-buffer-size
|
||
(buffer-size))
|
||
(cond
|
||
((null sanity-check-change-functions-buffer-size)
|
||
(setq sanity-check-change-functions-buffer-size (buffer-size)))
|
||
((equal sanity-check-change-functions-buffer-size (buffer-size)) nil)
|
||
(t
|
||
(sanity-check-change-functions-error
|
||
"buffer-size %S == %S"
|
||
(buffer-size) sanity-check-change-functions-buffer-size)
|
||
(setq sanity-check-change-functions-buffer-size (buffer-size)))))
|
||
|
||
(defun sanity-check-change-functions-before (beg end)
|
||
(sanity-check--message "Before: %S %S" beg end)
|
||
(unless (<= (point-min) beg end (point-max))
|
||
(sanity-check-change-functions-error
|
||
"Position bounds: %S <= %S <= %S <= %S"
|
||
(point-min) beg end (point-max)))
|
||
(sanity-check-change-functions-check-size)
|
||
(setq sanity-check-change-functions-beg beg)
|
||
(setq sanity-check-change-functions-end end))
|
||
|
||
(defun sanity-check-change-functions-after (beg end len)
|
||
(sanity-check--message "After : %S %S (%S)" beg end len)
|
||
(unless (<= (point-min) beg end (point-max))
|
||
(sanity-check-change-functions-error
|
||
"Position bounds: %S <= %S <= %S <= %S"
|
||
(point-min) beg end (point-max)))
|
||
(unless (>= len 0)
|
||
(sanity-check-change-functions-error "len: %S >= 0" len))
|
||
(let ((bend (+ beg len)))
|
||
(unless (<= sanity-check-change-functions-beg
|
||
beg bend
|
||
sanity-check-change-functions-end)
|
||
(sanity-check-change-functions-error
|
||
"After covered by before: %S <= %S <= %S <= %S"
|
||
sanity-check-change-functions-beg beg bend
|
||
sanity-check-change-functions-end)))
|
||
(let ((offset (- end beg len)))
|
||
(setq sanity-check-change-functions-end
|
||
(+ sanity-check-change-functions-end offset))
|
||
(setq sanity-check-change-functions-buffer-size
|
||
(+ sanity-check-change-functions-buffer-size offset)))
|
||
(sanity-check-change-functions-check-size))
|
||
|
||
(defun sanity-check-change-functions-errors ()
|
||
(sanity-check-change-functions-check-size)
|
||
(if sanity-check-change-functions-errors
|
||
(cons sanity-check-change-functions-op
|
||
sanity-check-change-functions-errors)))
|
||
|
||
(ert-deftest editfns-tests--before/after-change-functions ()
|
||
(with-temp-buffer
|
||
(add-hook 'before-change-functions
|
||
#'sanity-check-change-functions-before nil t)
|
||
(add-hook 'after-change-functions
|
||
#'sanity-check-change-functions-after nil t)
|
||
|
||
;; Bug#65451
|
||
(sanity-check-change-functions-with-op 'DABBREV-EXPAND
|
||
(insert "utf-8-unix\n\nUTF")
|
||
(call-interactively 'dabbrev-expand)
|
||
(should (null (sanity-check-change-functions-errors))))
|
||
|
||
(let ((beg (point)))
|
||
(sanity-check-change-functions-with-op 'ENCODE-CODING-REGION
|
||
(insert "ééé")
|
||
(encode-coding-region beg (point) 'utf-8)
|
||
(should (null (sanity-check-change-functions-errors))))
|
||
|
||
(sanity-check-change-functions-with-op 'DECODE-CODING-REGION
|
||
(decode-coding-region beg (point) 'utf-8)
|
||
(should (null (sanity-check-change-functions-errors)))))
|
||
|
||
(sanity-check-change-functions-with-op 'ENCODE-CODING-STRING
|
||
(encode-coding-string "ééé" 'utf-8 nil (current-buffer))
|
||
(should (null (sanity-check-change-functions-errors))))
|
||
|
||
(sanity-check-change-functions-with-op 'DECODE-CODING-STRING
|
||
(decode-coding-string "\303\251\303\251\303\251"
|
||
'utf-8 nil (current-buffer))
|
||
(should (null (sanity-check-change-functions-errors))))))
|
||
|
||
;;; editfns-tests.el ends here
|