rake test:units fails in my current application, because the needed data of the fixtures is missing.
If I\'m loading the fixtures manually via rak
I finally found the problem, although the solutions is kind of hacky.
One plugin is relying that there is some data in the database, at least one row. So what happened was:
The hacky solution is: put the needed data directly into schema and not into a fixtures, because it's loaded to late.
I'll search for a more convenient solution and will update this answer if I found one.