build/tests: new tests.ssl option to force SSL when supported

[dsmiley]

No description provided.

[dsmiley]

@epugh I recall about ~2 months ago, you wrote a test but it didn't work with SSL. Did I share a tip/trick to run tests with SSL that merely involved a setting at the CLI? I forget. If there is no such way to do it, then this PR would be useful.

One thing this PR doesn't do but maybe should is explicitly run with SSL randomization disabled. It only does the inverse right now.

[epugh]

@epugh I recall about ~2 months ago, you wrote a test but it didn't work with SSL. Did I share a tip/trick to run tests with SSL that merely involved a setting at the CLI? I forget. If there is no such way to do it, then this PR would be useful.

One thing this PR doesn't do but maybe should is explicitly run with SSL randomization disabled. It only does the inverse right now.

I am trying to remember which one it was, but yeah.. I know we have a lot of SuppressSSL littered about...

[hossman]

FWIW: This kind of feels like a half finished option?

if -Ptests.ssl=true is now a way to force tests (that support SSL) to use SSL, regardless of the randomization, then shouldn't -Ptests.ssl=false be a way to force tests to NOT use SSL, regardless of the randomization?

[dsmiley]

fair point that I stated 2 weeks ago; I was conflicted to bother with doing it (as I didn't have a need/desire) but I'll proceed with that.

[dsmiley]

@hossman see #4500