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-rw-r--r--test/lisp/emacs-lisp/timer-tests.el5
1 files changed, 5 insertions, 0 deletions
diff --git a/test/lisp/emacs-lisp/timer-tests.el b/test/lisp/emacs-lisp/timer-tests.el
index 65e5dc9bde9..fa92c1b64aa 100644
--- a/test/lisp/emacs-lisp/timer-tests.el
+++ b/test/lisp/emacs-lisp/timer-tests.el
@@ -39,4 +39,9 @@
(if (fboundp 'debug-timer-check)
(should (debug-timer-check)) t))
+(ert-deftest timer-test-multiple-of-time ()
+ (should (equal
+ (timer-next-integral-multiple-of-time '(0 0 0 1) (1+ (ash 1 53)))
+ (list (ash 1 (- 53 16)) 1 0 0))))
+
;;; timer-tests.el ends here