After [1] merged into stestr 2.3.1, concurrency is expected to be an int but ostestr defaults to None resulting the below error:
Traceback (most recent call last):
File ".../bin/ostestr", line 10, in <module>
sys.exit(main())
File ".../os_testr/ostestr.py", line 263, in main
exit(ostestr(sys.argv[1:]))
File ".../os_testr/ostestr.py", line 259, in ostestr
return _select_and_call_runner(opts, regex, others)
File ".../os_testr/ostestr.py", line 212, in _select_and_call_runner
black_regex=opts.black_regex)
File ".../os_testr/ostestr.py", line 167, in call_testr
black_regex=black_regex)
File ".../stestr/commands/run.py", line 334, in run_command
concurrency = _to_int(concurrency)
File ".../stestr/commands/run.py", line 39, in _to_int
i = int(possible)
TypeError: int() argument must be a string or a number, not 'NoneType'
This issue seems to be fixed in [2], but the gate would be broken for networking-ovn till that is not released
[1]https://github.com/mtreinish/stestr/commit/c93bc81
[2]https://github.com/mtreinish/stestr/commit/ac8dac0
patch proposed : https:/