As a bonus, we can replace assertGreater ➔ assertEqual as our DB will no
longer be polluted by remnants from previous test runs.

This does not apply to Odoo >= 13 where base.automation::_update_registry has
been reworked to no longer reload the whole registry.

We also change partner.color to country.phone_code to match other similar modules.

--HG--
branch : 11.0