Also now permit interactivly running tests without explicitly setting
$srcdir. This now works if we are inside ./tests and fails, as before,
when we are in a different directory.
Detected by shellcheck via CodeFactor.io
This is required to support parallel test runs.
Among others, make thise files dynamic:
* test-spool
* rsyslog.input
* rsyslog.out*.log
* tmp.in
Also:
* convert presort test statement to function
* cleanup imfile truncation test
* cleanup imfile-growing-file-id test
some cruft was left due to copy and paste error
* serialize mysql tests
- DEAD_PORT now uses unassigned IANA port unlike to be used on the system
(dynamic port querying is racy and we had at least once an issue, so we
can remove ambiguity here easily)
- replace some diag.sh commands by bash functions
This is work torward the ability to run the testbench in parallel.
Some small issues in tests have also been detected, which were not
previously seen. They have been fixed. We did not do separate
commits for this as it would clutter the commit log with not
really relevant info.
Also move some cleanup to "make clean" target
To support parallel testbench runs, we need to have dynamic work files.
So deleting work files on each test does not work, especially as we can
no longer assume they are "left-overs" from a failed test - they may
actually (and quite likely) belong to tests that run in parallel.
So the proper solution is to do via "make clean".
closes https://github.com/rsyslog/rsyslog/pull/2916
changes some of the test commands to use bash functions
includes some small bug fixes to tests where bugs were
previously not seen due to different plumbing.
