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3b24b396c4
Before the change, the common Emacs test scheme was to print buffer content to stdout and redirect it to a file or capture it in a shell variable. This does not work if we switch to using emacsclient(1) for running the tests, because you can not print to the stdout in this case. (Actually, you can print to stdout from Emacs server, but you can not capture the output on emacsclient(1)). The patch introduces new Emacs test auxiliary functions: `test-output' and `test-visible-output'. These functions are used to save buffer content to a file directly from Emacs. For most tests the changes are trivial, because Emacs stdout output was redirected to a file anyway. But some tests captured the output in a shell variable and compare it with the expected output using test_expect_equal. These tests are changed to use files and test_expect_equal_file instead. Note: even if we do not switch Emacs tests to emacsclient(1), the patch makes tests cleaner and is an improvement.
53 lines
1.9 KiB
EmacsLisp
53 lines
1.9 KiB
EmacsLisp
;; test-lib.el --- auxiliary stuff for Notmuch Emacs tests.
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;;
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;; Copyright © Carl Worth
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;; Copyright © David Edmondson
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;;
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;; This file is part of Notmuch test suit.
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;;
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;; Notmuch is free software: you can redistribute it and/or modify it
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;; 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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;;
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;; Notmuch is distributed in the hope that it will be useful, but
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;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;; General Public License for more details.
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;;
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;; You should have received a copy of the GNU General Public License
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;; along with Notmuch. If not, see <http://www.gnu.org/licenses/>.
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;;
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;; Authors: Dmitry Kurochkin <dmitry.kurochkin@gmail.com>
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;; avoid crazy 10-column default of --batch
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(set-frame-width (window-frame (get-buffer-window)) 80)
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(defun notmuch-test-wait ()
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"Wait for process completion."
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(while (get-buffer-process (current-buffer))
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(sleep-for 0.1)))
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(defun test-output (&optional filename)
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"Save current buffer to file FILENAME. Default FILENAME is OUTPUT."
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(write-region (point-min) (point-max) (or filename "OUTPUT")))
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(defun test-visible-output (&optional filename)
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"Save visible text in current buffer to file FILENAME. Default
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FILENAME is OUTPUT."
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(let ((text (visible-buffer-string)))
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(with-temp-file (or filename "OUTPUT") (insert text))))
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(defun visible-buffer-string ()
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"Same as `buffer-string', but excludes invisible text."
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(visible-buffer-substring (point-min) (point-max)))
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(defun visible-buffer-substring (start end)
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"Same as `buffer-substring', but excludes invisible text."
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(let (str)
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(while (< start end)
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(let ((next-pos (next-char-property-change start end)))
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(when (not (invisible-p start))
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(setq str (concat str (buffer-substring start next-pos))))
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(setq start next-pos)))
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str))
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