Re: call for more ert tests

[Lennart Borgman]

On Mon, Jun 24, 2013 at 8:21 PM, Eli Zaretskii <address@hidden> wrote:

> From: Glenn Morris <address@hidden>
> Date: Mon, 24 Jun 2013 13:31:50 -0400
>
> One thing that could help reduce this is more unit tests.
> If you haven't used it, ERT makes it pretty easy to write tests.
> Of course, many aspects of Emacs's behaviour are not easy to test (GUI
> stuff, etc.), but many are. See test/automated/ for examples. [2]
>
> For example, package.el seems like something that should have a test
> suite.
>
> So if you fix a bug, please consider adding a unit test to make sure it
> does not come back. Or if you rewrite a lisp package, consider adding
> tests at the same time to check that obvious functionality still works.
>
> I know writing tests is maybe not as interesting as writing shiny new
> features, but I think it will save work in the long run.

IMO, unless we require every new feature to come with a test and a
report that no regressions were found by running the existing tests,
we will never get any better testability than what we have now.

Maybe writing tests for all bugs that shows up?