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How to execute the PrestaShop automatic test suite

Executing Unit/integration test suites

At least four test suites are available, testing different parts of PrestaShop:

Legacy tests: heritage from PrestaShop 1.6: mix of unit, integration and functional tests;
Legacy controllers: added to help with the Symfony migration, ensures that old Back Office controllers are still runnable;
Admin tests: specific to PrestaShop 1.7, tests src/Core and src/Adapter classes;
Symfony specific tests: specific to PrestaShop 1.7, test classes from src/PrestaShopBundle

Each suite needs a specific PHPUnit configuration. This is why each test suite has a specific composer command:

You can execute the entire PHPUnit test suites using the composer test-all command.

This is thoroughly explained in the Puppeteer tests Readme file.