.  uniq -c
  ^~~~
process_test.py:1: 'uniq' not found (OILS-ERR-100)
pipe_status: [-1, -1, -1, 127]
.  head
  ^~~~
process_test.py:1: 'head' not found (OILS-ERR-100)
  ls
  ^~
process_test.py:1: 'ls' not found (OILS-ERR-100)
  head
  ^~~~
process_test.py:1: 'head' not found (OILS-ERR-100)
  sort --reverse
  ^~~~
process_test.py:1: 'sort' not found (OILS-ERR-100)
  cat
  ^~~
process_test.py:1: 'cat' not found (OILS-ERR-100)
.  cat
  ^~~
process_test.py:1: 'cat' not found (OILS-ERR-100)
('BEFORE', ['0', '1', '2', '3', '4'])
('AFTER', ['0', '1', '2', '3', '4'])
------------------------------------------------------------
ls | cut -d . -f 1 | head
[-1, -1, 127]
[-1, -1, -1, 127]
.  cat
  ^~~
process_test.py:1: 'cat' not found (OILS-ERR-100)
('BEFORE', ['0', '1', '2', '3', '4'])
('AFTER', ['0', '1', '2', '3', '4'])
------------------------------------------------------------
ls | cut -d . -f 1 | head
[-1, -1, 127]
[-1, -1, -1, 127]
oils: PID 688 Stopped, but osh didn't start it
oils: PID 689 Stopped, but osh didn't start it
oils: PID 690 Stopped, but osh didn't start it
oils: PID 691 Stopped, but osh didn't start it
Wed Nov 20 21:20:43 UTC 2024
date returned 0
[??? no location ???] Can't execute 'does-not-exist': No such file or directory
..
----------------------------------------------------------------------
Ran 6 tests in 0.027s

OK
('BEFORE', ['0', '1', '2', '3', '4'])
('AFTER', ['0', '1', '2', '3', '4'])
------------------------------------------------------------
ls | cut -d . -f 1 | head
[-1, -1, 127]
[-1, -1, -1, 127]
('FDS BEFORE', ['0', '1', '2', '3', '4'])
------------------------------------------------------------
date
------------------------------------------------------------
does-not-exist
127
('FDS AFTER', ['0', '1', '2', '3', '4'])