On 4/30/14, 10:01 PM, Jonathan M Davis via Digitalmars-d wrote:
I'm all for parallelizing all unittest blocks that are pure, as doing so would be safe, but I think that we're making a big mistake if we try and insist that all unittest blocks be able to be run in parallel. Any that aren't pure are not guaranteed to be parallelizable, and any which access system resources or other global, mutable state stand a good chance of breaking.
There are a number of assumptions here: (a) most unittests that can be effectively parallelized can be actually inferred (or declared) as pure; (b) most unittests that cannot be inferred as pure are likely to break; (c) it's a big deal if unittests break. I question all of these assumptions. In particular I consider unittests that depend on one another an effective antipattern that needs to be eradicated.
Andrei
