Command-line setup to reproduce regression tests?

Darren Tucker dtucker at
Fri Feb 5 17:35:57 AEDT 2021


On Fri, 5 Feb 2021 at 02:54, Dmitry Belyavskiy <dbelyavs at> wrote:
> I'm working on adding the support of Edwards PKCS#11 keys to openssh (WIP,
> To find out the missing codepaths, I need to reproduce the test scenarios
> from regress/ from the command line. Could anybody please
> give some hints which environment variables should be set for it?

What I normally do when I'm trying to debug a failing regression test
is 1) add "set -x" to the top of either or the test in
question then 2) run the test with TEST_SSH_FAIL_FATAL=yes, which
causes the test driver to exit immediately exit.  (If the test
involves a running server, you might also have to comment out the

With a bit of luck you can usually re-run the failing command at the
command line.  Since you're reliant on the environment, you might want
to add a "set" to fail() to dump the environment on the way out so you
can grab the appropriate bits.

I was going to include instructions for running a single test but I
see Damien just beat me to it.

Darren Tucker (dtucker at
GPG key 11EAA6FA / A86E 3E07 5B19 5880 E860  37F4 9357 ECEF 11EA A6FA (new)
    Good judgement comes with experience. Unfortunately, the experience
usually comes from bad judgement.

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