Test it_can_select_a_specific_fragment#single row failing with 9.22.0 (php 8.4.4)

[tenzap]

Bug Report

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Information	Description
Version	9.22.0
PHP version	8.4.4
OS Platform	Linux Debian trixie

Summary

While running the test suite, phpunit fails/crashes

PHPUnit 11.5.11 by Sebastian Bergmann and contributors.

Runtime:       PHP 8.4.4
Configuration: /mnt/packages/git_repos/dpkg/php-league-csv/phpunit.xml

...............................................................  63 / 678 (  9%)
............................................................... 126 / 678 ( 18%)
..........DDDDD................................................ 189 / 678 ( 27%)
....................................DDDDDDDDDDD.............zend_mm_heap corrupted
Aborted (core dumped)

- League\Csv\ReaderTest::setUp
Test Prepared (League\Csv\ReaderTest::it_can_select_a_specific_fragment#single row)
zend_mm_heap corrupted
Aborted (core dumped)

Standalone code, or other way to reproduce the problem

vendor/bin/phpunit --exclude-group network --no-coverage --debug

However, the same command on PHP 8.2.26 succeeds
I also checked your github actions job, which succeeds, so I reported a bug to Debian php8.4 package maintainer as well.

Moreover, I found that if I invoke phpunit with XDEBUG_MODE=coverage there is no failure.

(Please complete the text below to help us fix the issue)

Expected result

Test succeeds

Actual result

See above

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[nyamsprod]

Hi @tenzap,

The test does not seem to fail:

• on github actions (PHPversion 8.1 -> 8.4 included)
• on my local machine (MacOS with Laravel Herd. Code tested from PHP8.1 -> PHP8.4)

all tested with the latest PHPUnit11 version 🤔 .

Could it be related to some extension not being correctly setup like Xdebug or OpCache 🤔 ?
Did you try running the test suite with those extensions disabled ?

[tenzap]

If I uninstall xdebug (v3.4.1), tests pass (no crash). (NB: I invoke phpunit without coverage).

When xdebug is installed, I found that if I invoke phpunit with XDEBUG_MODE=coverage there is no failure either.

[nyamsprod]

So it is a problem between xdebug and phpunit and not much the package and its test suite.

[tenzap]

Can you try to reproduce with composer run-script phpunit:min ?
For me this would crash, while composer run-script phpunit succeeds.

I created a bugreport at https://bugs.xdebug.org/view.php?id=2328

[nyamsprod]

tried composer run-script phpunit:min on PHP8.2 -> PHP8.4 on MacOS I never get the error.

[tenzap]

tried composer run-script phpunit:min on PHP8.2 -> PHP8.4 on MacOS I never get the error.

In the meantime I found that on PHP 8.4 + Xdebug 3.4.1:

test suite succeeds with
xdebug.mode = debug,coverage

test suite crashes when xdebug.mode is not set, which corresponds to
xdebug.mode = develop