;;; timer-tests.el --- tests for timers -*- lexical-binding:t -*-

;; Copyright (C) 2013-2017 Free Software Foundation, Inc.

;; 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:

;;; Code:

(ert-deftest timer-tests-sit-for ()
  (let ((timer-ran nil)
        ;; Want sit-for behavior when interactive
        (noninteractive nil))
    (run-at-time '(0 0 0 0)
                 nil
                 (lambda () (setq timer-ran t)))
    ;; The test assumes run-at-time didn't take the liberty of firing
    ;; the timer, so assert the test's assumption
    (should (not timer-ran))
    (sit-for 0 t)
    (should timer-ran)))

(ert-deftest timer-tests-debug-timer-check ()
  ;; This function exists only if --enable-checking.
  (if (fboundp 'debug-timer-check)
      (should (debug-timer-check)) t))

;;; timer-tests.el ends here
