Drupal 8 testing framework always prepares a clean environment without any site configuration, users, entities or files. This makes it hard to prepare tests that depend on the site configuration (e.g. Check if some webservice is properly configured). This module fills the gap and allows to create tests of the entire setup.
The module provides a new plugin type LTest and a base class
LiveTestBase that can be implemented by other modules and
an UI to perform tests.