Where can I find Symfony2 unit tests?

Their google group is slow, the phpBB-forum is weak开发者_JS百科 and spammed, the documentation is sparse ... so please tell me somebody where to finde unit test of symfony2 components!

Neither in the distribution nor on GitHub I made a find.

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They are in Github, in the tests folder.

https://github.com/symfony/symfony/tree/master/tests