Parallel execution of unittests

[Dicebot via Digitalmars-d]

On Thursday, 1 May 2014 at 14:55:50 UTC, Andrei Alexandrescu 
wrote:
> On 5/1/14, 1:34 AM, Dicebot wrote:
>> I have just recently went through some of out internal 
>> projects removing
>> all accidental I/O tests for the very reason that /tmp was full
>
> Well a bunch of stuff will not work on a full /tmp. Sorry, hard 
> to elicit empathy with a full /tmp :o). -- Andrei

So you are OK with your unit tests failing randomly with no clear 
diagnostics? Including automated test servers? Really?

Bunch of stuff can go wrong. Higher level tests verify their 
expectations from environment (if written carefully), which is 
impractical to do in unit tests. Also such reliance on 
environment makes running in parallel impossible without explicit 
resource dependency tracking for any kind of bigger test suite.