nonexistant file opened for reading: <nil> (should be nil)
nonexistant file opened for reading and writing: <nil> (should be nil)
unlink: -1 (should fail)
(hopefully) nonexistant file opened for reading: <nil> (should be nil)
(hopefully) nonexistant file opened for writing: <fd> (should succeed)
(hopefully) wrote 65 bytes
length of empty file: 65
unlink: 0 (should succeed)
(hopefully) nonexistent file re-opened for reading: <nil> (should be nil)
syslib specific tests...
retained keys: vector( ) (should be empty)