[PATCH] tests: use Git's test framework

[Jason A. Donenfeld]

On Mon, Apr 1, 2013 at 4:09 PM, John Keeping <john at keeping.me.uk> wrote:
> Obviously there are a number of further changes that can be done on top
> of this to avoid the now-unnecessary wrapper functions and use a test
> prerequisite for HTML tidy but I don't want to work on those unless
> there is agreement that this is a sensible direction.

I'm okay with merging this patch. But before I merge from wip to
master, it'd be nice to see the further changes -- eliminating a few
wrapper functions, using test prerequisites, etc. I applied this on
top of yours --
http://git.zx2c4.com/cgit/commit/?h=wip&id=2b9829453790425c98d3ad7427f82ba9f6446d01
-- but this is just a start.