PhpUnit not executing via PhpStorm remote interpreter in Docker - symfony

Question

The issue I've got is that PhpUnit does not function (properly, something does happen) when just plain clicking "Run" (Shift + F10 on Windows) in PhpStorm.
First up, followed tutorials/setup guides:
https://blog.jetbrains.com/phpstorm/2016/11/docker-remote-interpreters/
https://blog.alejandrocelaya.com/2017/02/01/run-phpunit-tests-inside-docker-container-from-phpstorm/
https://stackoverflow.com/a/47578104
So now, pretty much got a working setup, apart from it doesn't.
Testing started at 15:21 ...
[docker://IMAGE_NAME:latest/]:php bin/.phpunit/phpunit-6.5/phpunit --configuration /var/www/html/phpunit.xml.dist --teamcity
PHPUnit 6.5.14 by Sebastian Bergmann and contributors.
Testing Project Test Suite
Fatal error: Uncaught PDOException: SQLSTATE[HYT00]: [unixODBC][Microsoft][ODBC Driver 17 for SQL Server]Login timeout expired in /var/www/html/src/Legacy/Connection/MssqlConnection.php on line 178
PDOException: SQLSTATE[HYT00]: [unixODBC][Microsoft][ODBC Driver 17 for SQL Server]Login timeout expired in /var/www/html/src/Legacy/Connection/MssqlConnection.php on line 178
Call Stack:
0.0003 393408 1. {main}() /var/www/html/bin/.phpunit/phpunit-6.5/phpunit:0
0.0571 923544 2. PHPUnit\TextUI\Command::main() /var/www/html/bin/.phpunit/phpunit-6.5/phpunit:17
0.0571 923656 3. Symfony\Bridge\PhpUnit\Legacy\CommandForV6->run() /var/www/html/bin/.phpunit/phpunit-6.5/src/TextUI/Command.php:148
0.2019 4269152 4. Symfony\Bridge\PhpUnit\Legacy\TestRunnerForV6->doRun() /var/www/html/bin/.phpunit/phpunit-6.5/src/TextUI/Command.php:195
0.2158 4697272 5. PHPUnit\Framework\TestSuite->run() /var/www/html/bin/.phpunit/phpunit-6.5/src/TextUI/TestRunner.php:545
0.2181 4702968 6. PHPUnit\Framework\TestResult->startTestSuite() /var/www/html/bin/.phpunit/phpunit-6.5/src/Framework/TestSuite.php:689
0.2233 4717824 7. App\Tests\Helper\DeleteDBOnceListener->startTestSuite() /var/www/html/bin/.phpunit/phpunit-6.5/src/Framework/TestResult.php:368
0.2270 4739216 8. App\Legacy\Connection\MssqlConnection->databaseExists() /var/www/html/tests/Helper/DeleteDBOnceListener.php:55
0.2270 4739216 9. App\Legacy\Connection\MssqlConnection->findDbFromDSN() /var/www/html/src/Legacy/Connection/MssqlConnection.php:38
0.2271 4740104 10. PDO->__construct() /var/www/html/src/Legacy/Connection/MssqlConnection.php:178
Process finished with exit code 255
Obviously this reads as: cannot connect to DB. But!
If I log into the Docker instance, and then run the command, it works! Command:
php bin/.phpunit/phpunit-6.5/phpunit --configuration /var/www/html/phpunit.xml.dist
Generates output:
user#hash:/var/www/html# php bin/.phpunit/phpunit-6.5/phpunit --configuration /var/www/html/phpunit.xml.dist
PHPUnit 6.5.14 by Sebastian Bergmann and contributors.
Testing Project Test Suite
Dropping current database...
.Creating database..
................................................................ 65 / 80 ( 81%)
............... 80 / 80 (100%)
Time: 3.25 minutes, Memory: 56.12MB
OK (80 tests, 336 assertions)
So why, when executing using "Run", does this fail when doing it from PhpStorm? Did I miss a setting?

Answer 1

Since you asked your question 3 years ago you probably also answered it yourself. However I will leave my answer for people who enter here in future.
The error HYT00 is a timeout error from MSSQL client. This basically means that your client does not have access to the server (or that it responding very slow).
If you configure PHPStorm to use the docker container as an interpreter it's doing exactly this - only using the PHP you have inside the docker container as an interpreter but not running it inside of the container. You are still running it in your host environment, in your host network etc.
Make sure you have access to the database from your host machine and that you are using a correct connection string while running the tests. In your test configuration you may have the internal hostnames of docker (between docker containers you may for example use container names as their hostnames). When running from the host machine you will need an accessible hsotname, like localhost:1433 if you have the ports mapped to host machine.
With this checked the tests should execute correctly.
Just an offtopic - unless you are doing integration tests it's not a good idea to connect to SQL in Unit tests. Better to use mocks:)