Where should tests for flutter be kept

Question

Do they have to be in the root tests foder? When using react I prefer to keep my tests near the components, can I do this with flutter? If not, is it recommended to store all tests in the one test folder or duplicate the structure of lib?

Answer 1

It depends on the different type of test (unit, widget, or integration) but the need to be located in specific folders.

From Flutters CookBook Guides:

In general, test files should reside inside a test folder located at the root of your Flutter application or package.

Unit and Widget tests must be located in a test folder. Integration test must go in a separate directory called test_driver. Both folders must be located same level as your lib folder.