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a854d06e92
Before the change, every Emacs test ran in a separate Emacs instance. Starting Emacs many times wastes considerable time and it gets worse as the test suite grows. The patch solves this by using a single Emacs server and emacsclient(1) to run multiple tests. Emacs server is started on the first test_emacs call and stopped when test_done is called. We take care not to leave orphan Emacs processes behind when test is terminated by whatever reason: Emacs server runs a watchdog that periodically checks that the test is still running. Some tests need to provide user input. Before the change, this was done using echo(1) to Emacs stdin. This no longer works and instead `standard-input' variable is set accordingly to make `read' return the appropriate string.
66 lines
2.4 KiB
EmacsLisp
66 lines
2.4 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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;; `read-file-name' by default uses `completing-read' function to read
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;; user input. It does not respect `standard-input' variable which we
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;; use in tests to provide user input. So replace it with a plain
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;; `read' call.
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(setq read-file-name-function (lambda (&rest _) (read)))
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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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(defun orphan-watchdog (pid)
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"Periodically check that the process with id PID is still
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running, quit if it terminated."
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(if (not (process-attributes pid))
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(kill-emacs)
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(run-at-time "1 min" nil 'orphan-watchdog pid)))
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