Paratest crash due to InternalCallMapHandlerTest

[AndrolGenhald]

Paratest is now crashing for me on 4.x due to InternalCallMapHandlerTest, added in #8104. The error message "Command not found" is incredibly unhelpful, but the issue is due to the command line being too long.

The command is incredibly large, but it includes:

'--filter' '/testIgnoresAreSortedAndUnique(?:\s|$)|testGetcallmapReturnsAValidCallmap(?:\s|$)|testIgnoredFunctionsStillFail with data set "_\: \{"0"\:"string","message"\:"string"\}"$|testIgnoredFunctionsStillFail with data set "acos\: \{"0"\:"float","num"\:"float"\}"$|testIgnoredFunctionsStillFail with data set "acosh\: \{"0"\:"float","num"\:"float"\}"$|...'

so it looks like the command includes the entirety of the callmap...

According to paratestphp/paratest#154 --max-batch-size is supposed to work with data providers, and I'm using --max-batch-size=16, so this might be a bug in paratest.

[psalm-github-bot]

Hey @AndrolGenhald, can you reproduce the issue on https://psalm.dev ?

[weirdan]

@AndrolGenhald does it still happen for you? I'm running paratest locally just fine (on current master).

[AndrolGenhald]

Still fails partway through:

$ time vendor/bin/paratest -f --max-batch-size=16
ParaTest v6.6.5 upon PHPUnit 9.5.26 by Sebastian Bergmann and contributors.

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In WorkerCrashedException.php line 41:
                                                                                                                                                                                                                                           
  The command "PARATEST='1' TEST_TOKEN='12' UNIQUE_TEST_TOKEN='12_636d144fd0c42' '/usr/bin/php8.1' ...

With an incredibly long error message after that. Since my original diagnosis was that the command line is too long it's possible it works for you because you have a higher limit set. I have:

$ getconf ARG_MAX
2097152

Which I believe is the relevant setting. On the other hand, when I copy the error message it's only around 835,000 characters, which is less than half of that limit.

[weirdan]

it's possible it works for you because you have a higher limit set.

No, I have the same ARG_MAX. I used to have crashes related to memory limit, which I fixed by changing the command line to:

php-noxdebug vendor/bin/paratest --passthru-php="-dmemory_limit=-1"

(php-noxdebug util comes from https://github.com/weirdan/run-without-xdebug/).