These tests are truly horrible. You change one thing and then spend
three days just updating stubs in tests. The only possible solution is
to move more and more into stub classes.
Instead of the root entity always being the default one (for new
entities being created etc.) we now can specify another entity which is
the default one.
Started initial work on providing stubs, so that we finally can start to
reduce the amount of code needed for the tests. Some tests are using the
new stubs, but the plan is to continously move more and more code from
the tests over to the stub as they are updated.
