1 Composer & Paths

1. Require the TestApplication

   composer require --dev sylius/test-application:^1.14.0@alpha

2. Set the public dir

   composer config extra.public-dir vendor/sylius/test-application/public

3. Update autoload-dev

   {
       "autoload-dev": {
           "psr-4": {
               "Tests\\YourPlugin\\": "tests/TestApplication/src/"
           }
       }
   }

Then run:

composer dump-autoload

Optional

• Check that symfony/flex and symfony/runtime are allowed (needed by TestApplication):

  composer config allow-plugins.symfony/flex true
  composer config allow-plugins.symfony/runtime true