testing: Add support for running tests in parallel

testing: Add support for running tests in parallel

This add -parallel option to gotest. (-parallel can't be used in conjunction
with -cpu).

[tebeka, 2011-09-14 14:30:17]

Greetings,

This patch adds support to 'gotest' for running tests in parallel.

Since it's my first patch, pretty sure there will be a lot of learning involved
:)

Miki

[rsc, 2011-09-14 15:12:47]

Thanks for looking into this.

It would be good to have a separate discussion on
golang-dev about the overall design here, before
diving into code.  You mentioned that you wanted
to run tests in parallel, but exactly what that means
and how it should be implemented have not been discussed.

Could you start a separate conversation on golang-dev,
even if it's a short one, to propose what the new
behavior and semantics are, before we review this?

Thanks.
Russ


Quoting http://golang.org/doc/contribute.html#Design:

Discuss your design

The project welcomes submissions but please let everyone know what
you're working on if you want it to become part of the main
repository.

Before undertaking to write something new for the Go project, send
mail to the mailing list to discuss what you plan to do. This gives
everyone a chance to validate the design, helps prevent duplication of
effort, and ensures that the idea fits inside the goals for the
language and tools. It also guarantees that the design is sound before
code is written; the code review tool is not the place for high-level
discussions.

In short, send mail before you code. And don't start the discussion by
mailing a change list!

[tebeka, 2011-09-14 16:32:54]

Hello Rus,

> Could you start a separate conversation on golang-dev,
> even if it's a short one, to propose what the new
> behavior and semantics are, before we review this?
Sure, will do that later today.

> In short, send mail before you code. And don't start the discussion by
> mailing a change list!
OK, I stand corrected. Won't happen again.

As a side note. I like to "doodle in code" and see how things shape
up. But some design up front will do me good for sure.

Thanks,
--
Miki

[rsc, 2011-09-14 16:52:14]

On Wed, Sep 14, 2011 at 12:32, Miki Tebeka <miki.tebeka@gmail.com> wrote:
> As a side note. I like to "doodle in code" and see how things shape
> up. But some design up front will do me good for sure.

Me too, but then the next thing to do after that
is to write up the design you arrive at in prose
and talk to people about that.

Russ