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;;; process-tests.el --- Testing the process facilities
;; Copyright (C) 2013-2014 Free Software Foundation, Inc.
;; This program 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.
;; This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;;
;;; Code:
(require 'ert)
;; Timeout in seconds; the test fails if the timeout is reached.
(defvar process-test-sentinel-wait-timeout 2.0)
;; Start a process that exits immediately. Call WAIT-FUNCTION,
;; possibly multiple times, to wait for the process to complete.
(defun process-test-sentinel-wait-function-working-p (wait-function)
(let ((proc (start-process "test" nil "bash" "-c" "exit 20"))
(sentinel-called nil)
(start-time (float-time)))
(set-process-sentinel proc (lambda (proc msg)
(setq sentinel-called t)))
(while (not (or sentinel-called
(> (- (float-time) start-time)
process-test-sentinel-wait-timeout)))
(funcall wait-function))
(cl-assert (eq (process-status proc) 'exit))
(cl-assert (= (process-exit-status proc) 20))
sentinel-called))
(ert-deftest process-test-sentinel-accept-process-output ()
(should (process-test-sentinel-wait-function-working-p
#'accept-process-output)))
(ert-deftest process-test-sentinel-sit-for ()
(should
(process-test-sentinel-wait-function-working-p (lambda () (sit-for 0.01 t)))))
(provide 'process-tests)
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