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emacs/test/occur-testsuite.el
Juri Linkov dc2d2590b2 Make occur handle multi-line matches cleanly with context.
http://lists.gnu.org/archive/html/emacs-devel/2010-03/msg01280.html

* replace.el (occur-accumulate-lines): Add optional arg `pt'.
(occur-engine): Add local variables `ret', `prev-after-lines',
`prev-lines'.  Use more arguments for `occur-context-lines'.
Set first elem of its returned list to `data', and the second elem
to `prev-after-lines'.  Don't print the separator line.
In the end, print remaining context after-lines.
(occur-context-lines): Add new arguments `begpt', `endpt',
`lines', `prev-lines', `prev-after-lines'.  Rewrite to combine
after-lines of the previous match with before-lines of the
current match and not overlap them.  Return a list with two
values: the output line and the list of context after-lines.

* search.texi (Other Repeating Search): Remove line that `occur'
can not handle multiline matches.

* occur-testsuite.el (occur-tests): Add tests for context lines.
2010-03-30 19:03:08 +03:00

348 lines
5.1 KiB
EmacsLisp

;;; occur-testsuite.el --- Test suite for occur.
;; Copyright (C) 2010 Free Software Foundation, Inc.
;; Author: Juri Linkov <juri@jurta.org>
;; Keywords: matching, internal
;; 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:
;; Type M-x test-occur RET to test the functionality of `occur'.
;;; Code:
(defconst occur-tests
'(
;; * Test one-line matches (at bob, eob, bol, eol).
("x" 0 "\
xa
b
cx
xd
xex
fx
" "\
5 matches for \"x\" in buffer: *temp*
1:xa
3:cx
4:xd
5:xex
6:fx
")
;; * Test multi-line matches, this is the first test from
;; http://lists.gnu.org/archive/html/emacs-devel/2005-06/msg01008.html
;; where numbers are replaced with letters.
("a\na" 0 "\
a
a
a
a
a
" "\
2 matches for \"a^Ja\" in buffer: *temp*
1:a
:a
3:a
:a
")
;; * Test multi-line matches, this is the second test from
;; http://lists.gnu.org/archive/html/emacs-devel/2005-06/msg01008.html
;; where numbers are replaced with letters.
("a\nb" 0 "\
a
b
c
a
b
" "\
2 matches for \"a^Jb\" in buffer: *temp*
1:a
:b
4:a
:b
")
;; * Test line numbers for multi-line matches with empty last match line.
("a\n" 0 "\
a
c
a
" "\
2 matches for \"a^J\" in buffer: *temp*
1:a
:
4:a
:
")
;; * Test multi-line matches with 3 match lines.
("x\n.x\n" 0 "\
ax
bx
c
d
ex
fx
" "\
2 matches for \"x^J.x^J\" in buffer: *temp*
1:ax
:bx
:c
5:ex
:fx
:
")
;; * Test non-overlapping context lines with matches at bob/eob.
("x" 1 "\
ax
b
c
d
ex
f
g
hx
" "\
3 matches for \"x\" in buffer: *temp*
1:ax
:b
-------
:d
5:ex
:f
-------
:g
8:hx
")
;; * Test non-overlapping context lines with matches not at bob/eob.
("x" 1 "\
a
bx
c
d
ex
f
" "\
2 matches for \"x\" in buffer: *temp*
:a
2:bx
:c
-------
:d
5:ex
:f
")
;; * Test overlapping context lines with matches at bob/eob.
("x" 2 "\
ax
bx
c
dx
e
f
gx
h
i
j
kx
" "\
5 matches for \"x\" in buffer: *temp*
1:ax
2:bx
:c
4:dx
:e
:f
7:gx
:h
:i
:j
11:kx
")
;; * Test overlapping context lines with matches not at bob/eob.
("x" 2 "\
a
b
cx
d
e
f
gx
h
i
" "\
2 matches for \"x\" in buffer: *temp*
:a
:b
3:cx
:d
:e
:f
7:gx
:h
:i
")
;; * Test overlapping context lines with empty first and last line..
("x" 2 "\
b
cx
d
e
f
gx
h
" "\
2 matches for \"x\" in buffer: *temp*
:
:b
3:cx
:d
:e
:f
7:gx
:h
:
")
;; * Test multi-line overlapping context lines.
("x\n.x" 2 "\
ax
bx
c
d
ex
fx
g
h
i
jx
kx
" "\
3 matches for \"x^J.x\" in buffer: *temp*
1:ax
:bx
:c
:d
5:ex
:fx
:g
:h
:i
10:jx
:kx
")
;; * Test multi-line non-overlapping context lines.
("x\n.x" 2 "\
ax
bx
c
d
e
f
gx
hx
" "\
2 matches for \"x^J.x\" in buffer: *temp*
1:ax
:bx
:c
:d
-------
:e
:f
7:gx
:hx
")
;; * Test non-overlapping negative (before-context) lines.
("x" -2 "\
a
bx
c
d
e
fx
g
h
ix
" "\
3 matches for \"x\" in buffer: *temp*
:a
2:bx
-------
:d
:e
6:fx
-------
:g
:h
9:ix
")
;; * Test overlapping negative (before-context) lines.
("x" -3 "\
a
bx
c
dx
e
f
gx
h
" "\
3 matches for \"x\" in buffer: *temp*
:a
2:bx
:c
4:dx
:e
:f
7:gx
")
)
"List of tests for `occur'.
Each element has the format:
\(REGEXP NLINES INPUT-BUFFER-STRING OUTPUT-BUFFER-STRING).")
(defun test-occur ()
(interactive)
(let ((count 1)
failed
(occur-hook nil))
(dolist (test occur-tests)
(let ((regexp (nth 0 test))
(nlines (nth 1 test))
(input-buffer-string (nth 2 test))
(output-buffer-string (nth 3 test)))
(save-excursion
(with-temp-buffer
(insert input-buffer-string)
(occur regexp nlines)
(unless (equal output-buffer-string
(with-current-buffer "*Occur*"
(buffer-string)))
(setq failed (cons count failed))))))
(setq count (1+ count)))
(if failed
(message "FAILED TESTS: %S" (reverse failed))
(message "SUCCESS"))))
(provide 'occur-testsuite)
;;; occur-testsuite.el ends here