Empty projects for different languages with a failing test
On the top level you can find different languages that are supported.
On the second level (in a particular language's directory) you'll find different testing frameworks that are supported.
In each directory for a particular framework, there is always
that contains various useful information. At minimum it contains the
information on how to install the dependencies and run the tests.
Cookiecutter has a similar goal and also supports multiple languages for setting up a bare project.