We use [tox](http://readthedocs.org/docs/tox/) to manage virtualenvs and run tests.

        $ pip install tox

Run all of the tests with:

        $ tox

Run all of the tests in parallel with the `-p` option:

        $ tox -p=all

If you running into this error check you buku setting.

```
>       self.assertEqual(dbdir_local_expected, BukuDb.get_default_dbdir())
E       AssertionError: '/home/user/.local/share/buku' != '/home/user/projects/buku'
E       - /home/user/.local/share/buku
E       + /home/user/projects/buku
```