PhpStorm: Cannot parse PHPUnit version output: Could not open file: /var/www/docroot/vendor/phpunit/phpunit/phpunit

I'm trying to setup PHPUnit in PhpStorm, so I can run tests from inside my IDE.

I have Docker setup in PhpStorm, and I can see my containers in the 'Services'-tab and exec stuff in them, from inside PhpStorm.

And if I click Update button (the circular arrows) next to 'Path to script', then it throws the error:

Cannot parse PHPUnit version output: Could not open file: /var/www/docroot/vendor/phpunit/phpunit/phpunit

It can be seen here:

The overarching question

What is failing here? I'm guessing that PhpStorm is trying to access PHPUnit inside the Docker-container, but can't find that phpunit-file (from the error).

... Oh, yeah - and how do I fix it? :-)

Quick solution attempts and thoughts

1. If I run this in my terminal: docker-compose exec php bin/phpunit --log-junit testresults.xml, then all the tests run. Great!

2. If I, inside PhpStorm, right click the php-container and choose exec and paste in: php bin/phpunit --log-junit testresults.xml, then the tests all run in PhpStorm. Great!

3. I could also try and find the phpunit.phar-file directly and point to that. But if I access the container (with docker-compose exec -i php /bin/bash) and then search for the file (with find . -name 'phpunit.phar') then nothing is found.

4. Default configuration file is blank. I also tried setting that to: /Users/myusername/Code/myproject/phpunit.xml.dist. Same result.

5. What if PHPUnit is installed in the php-image - and therefore not via Composer or something? Hmm... The only phpunit-line in the composer-file seem to be this: "symfony/phpunit-bridge": "^5.2", ...

Solution attempt 1: Check for the file

If I check for the file it's looking for in the vendor directory, then I can't seem to find the file it's looking for:

| vendor
  | ...
  | phpunit
    | php-timer
      | .github
      | src
      | tests
      | ... 
  | ...
  | ...

It looks like something is missing. But the tests can run inside the docker-container?! Hmm.!

And it's the same inside the container:

Links and resources

• Docker container with PHPUnit: Could not open input file: /var/www/vendor/phpunit/phpunit/phpunit
• PHPUnit "use Composer autoloader" could not parse PHPUnit version output.
• I tried following this (old) guide here, for the setup. He blasts through it, without my error: Running PHPUnit Tests in PhpStorm with Docker.
• How to run PHPUnit test inside a running container