"Could not find a matching version of package *@dev" using phpunit-bridge on Symfony itself

[GromNaN]

In the contribution guide, running tests should be as simple as php ./phpunit symfony.
But I has an error when simple-phpunit install symfony/phpunit-bridge "*@dev" (here).

I'm testing on the latest symfony/symfony on branch 5.4.

$ php ./phpunit
#!/usr/bin/env php
No composer.json found in the current directory, showing available packages from packagist.org
Creating a "phpunit/phpunit" project at "./phpunit-9.5-0"
Installing phpunit/phpunit (9.5.10)
Plugins have been disabled.
  - Installing phpunit/phpunit (9.5.10): Extracting archive
Created project in /Users/jtamarel/Code/Perso/symfony/.phpunit/phpunit-9.5-0
composer.json has been updated
Using version ^5.3 for symfony/phpunit-bridge

                                                                                                                                                                                                           
  [InvalidArgumentException]                                                                                                                                                                               
  Could not find a matching version of package *@dev. Check the package spelling, your version constraint and that the package is available in a stability which matches your minimum-stability (stable).  
                                                                                                                                                                                                           

require [--dev] [--dry-run] [--prefer-source] [--prefer-dist] [--prefer-install PREFER-INSTALL] [--fixed] [--no-suggest] [--no-progress] [--no-update] [--no-install] [--no-scripts] [--update-no-dev] [-w|--update-with-dependencies] [-W|--update-with-all-dependencies] [--with-dependencies] [--with-all-dependencies] [--ignore-platform-req IGNORE-PLATFORM-REQ] [--ignore-platform-reqs] [--prefer-stable] [--prefer-lowest] [--sort-packages] [-o|--optimize-autoloader] [-a|--classmap-authoritative] [--apcu-autoloader] [--apcu-autoloader-prefix APCU-AUTOLOADER-PREFIX] [--] [<packages>]...

[wouterj]

Hmm, I guess that means it's failing on this line locally:

symfony/src/Symfony/Bridge/PhpUnit/bin/simple-phpunit.php

Line 242 in 428434c

$passthruOrFail("$COMPOSER require --no-update symfony/phpunit-bridge \"*@dev\"");

The command you show is exactly what is used by the GitHub actions (and what all contributors use to run the tests locally - although I recommend you to replace "symfony" by the component/bundle you want to run the tests for, e.g. php ./phpunit src/Symfony/Bundle/FrameworkBundle).

Can you maybe share some more details about your machine or debug that line of code locally?

[GromNaN]

The problem has been solved by an update of composer from 01d734125cc0d82eb754c536b5c06310bcb6bdc4 to 2.1.9.