These are caused by the way IntelliJ IDEA mounts the folders into the docker container being used for the tests. composerRequire529a7fbcfe0fdb131521dbb30af51cca() /opt/project/vendor/composer/autoload_real.php:56 ComposerAutoloaderInit529a7fbcfe0fdb131521dbb30af51cca::getLoader() /opt/project/vendor/autoload.php:7 PHP 4. require() /opt/project/vendor/phpunit/phpunit/phpunit:59 PHP 3. () /opt/project/vendor/phpunit/phpunit/phpunit:0 PHP 2. PHP Warning: require(/opt/project/vendor/composer/./intergral/coms-core-php-library/src/helpers.php): failed to open stream: No such file or directory in /opt/project/vendor/composer/autoload_real.php on line 66 PHP Stack trace: PHP 1. If you have a more complex PHP project that has dependencies that you are also working on, and want to run the tests that use those dependencies then you will start to get these strange errors, saying PHP cannot find files that you can clearly see exist. If you are thinking that this is too simple for a blog, then you are correct, then above is the easy case. Then IntelliJ IDEA will execute the test using the docker environment configured, and if debug is configured correctly then you can also immediately debug the tests as well. Once you have the test you can simply click the small green arrow, or right click anywhere in the file and click run. This will help you create a test for the item you want to test, and can help configure the test framework you are using. Once everything is configured and you have a project you want to create a test for, then in IntelliJ IDEA it is as simple as using the 'Create Test' shortcut, which on my configuration is 'Ctrl + Shift + T', when in the method, class or file you want to test.

If all the above is configured correctly then you are ready. Validate Debug - Using the 'Languages & Frameworks -> PHP -> Debug' settings validate that debug is working in the docker.

Configure the remote interpreter - using the PHP Remote Interpreter and PHP Docker plugin create a docker PHP remote interpreter.

Install the plugins - we need several plugins for IntelliJ IDEA, available on the marketplace.

To configure IntelliJ IDEA to use Laradock for the tests we need to configure the following items: If you did not read my previous post, or do not have Laradock setup yet, I recommend you go back and read it and setup Laradock for your environment as I will be referring to it in this post. In this post I will quickly go over how to configure IntelliJ IDEA to use the Laradock containers for running unit tests, and why I recommend this approach. In my previous post ( Using Laradock with JetBrains IDEA) I spoke about setting up Laradock and IntelliJ IDEA to use PHP in a containerised environment and how this would help with ensuring a clean environment and how it allows you to easily change PHP version and other extensions.

Phpstorm docker phpunit