From: "Pascal J. Bourguignon" <pjb@informatimago.com>
To: help-gnu-emacs@gnu.org
Subject: Re: How to debug functions depending on (current-time)?
Date: Wed, 15 Jul 2015 22:47:18 +0200 [thread overview]
Message-ID: <87wpy1kv1l.fsf@kuiper.lan.informatimago.com> (raw)
In-Reply-To: mailman.6969.1436991395.904.help-gnu-emacs@gnu.org
Marcin Borkowski <mbork@mbork.pl> writes:
> Hi all,
>
> I have a bunch of functions depending on (current-time), and I'm
> wondering how to test/debug them. Is it safe to (temporarily) redefine
> `current-time'? Maybe it's better to do that in a separate Emacs
> instance? I could of course change their source code for the time of
> debugging, but this still lefts the problem of testing (esp. automatic
> testing) open.
Any problem in programming can be solved by one more level of
indirection.
(defvar *my-current-time-function* 'current-time)
(defun my-current-time-function () (funcall *my-current-time-function*))
(defvar *test-time* 0)
(when testing
(let ((*my-current-time-function* (lambda () (incf *test-time*))))
(test)))
--
__Pascal Bourguignon__ http://www.informatimago.com/
“The factory of the future will have only two employees, a man and a
dog. The man will be there to feed the dog. The dog will be there to
keep the man from touching the equipment.” -- Carl Bass CEO Autodesk
next parent reply other threads:[~2015-07-15 20:47 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <mailman.6969.1436991395.904.help-gnu-emacs@gnu.org>
2015-07-15 20:47 ` Pascal J. Bourguignon [this message]
2015-07-15 22:23 ` How to debug functions depending on (current-time)? Emanuel Berg
2015-07-15 20:16 Marcin Borkowski
2015-07-15 21:44 ` Filipp Gunbin
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