- Multiple parallel runs of the same test will not conflict
as a unique identifier is added to the test directory.
- The base test directory can be configured for various
environments, and can be changed via the environment
variable `TEMP`, see the implementation of `os.tmpdir()`
for specific details.
There is potential for around a 10% to 23% increase to the performance
of block reads by using `allocUnsafe`, however there is already around
a 3 to 6 times increase to the performance. While it's safe to use
`allocUnsafe` as the number of bytes read is checked to be the same
size as the buffer allocation, there is a potential for test cases
to introduce _other_ behavior for `fs.read` that may not have the
same behavior, though this isn't currently the case.