As the names depend on the tests' file names, it is safe to
run the tests with this option in parallel.
---root=<dir>::
- This runs the testsuites specified under a separate directory.
- However, caution is advised, as not all tests are maintained
- with this relocation in mind, so some tests may behave
- differently.
-
- Pointing this argument at a tmpfs filesystem can improve the
- speed of the test suite for some users.
-
Certain tests require precomputed databases to complete. You can fetch these
databases with