Let's test the whole code base

Ever tried to run Drupal core or contrib module tests and gotten a laundry list of errors? You're not alone. Some tests break because they're written to test the installation process itself, others because test-runner configs are missing. We will present a situation where being able to complete these tests may enhance reliability. On large enough projects one may have a number of patches that do not includes tests. It can thus be helpful to test the whole code base. Finally, we’ll cover a proposal to help make this possible.