This is so they can find their associated resources and it's
the same behavior as in Lagom.
This also required changing some tests so that they could
write their resources in a writable location.
There's no guarantee that the last executed command will have a zero
exit code, and so the shell exit code may or may not be zero, even if
all the tests pass.
Also changes the `test || echo fail && exit` to
`if not test { echo fail && exit }`, since that's nicer-looking.
