Add sbt test to regressions

[seldridge]

This adds the few Scalatest tests to the regression suite of both Travis and GitHub Actions.

This is largely cargo cult-ed from existing tests, but I expect @richardxia can straighten me out.

Related issue: None

Type of change: other enhancement

Impact: no functional change

Development Phase: implementation

Release Notes

None.

[richardxia]

The GitHub Actions changes look about right to me, but it looks like they failed because we haven't done the recursive submodule init. I think the Makefiles currently handle this, which is why the other tests didn't need to explicitly do the submodule init step.

One thing you could try is adding a Makefile target that runs the sbt test command but that depends on the git submodule checkout step. We have the git submodule checkouts split into a few different targets so that we don't have to clone all of GCC all the time, so I think the one that you want to target to grab the other dependencies like Chisel is this one:

rocket-chip/regression/Makefile

Line 148 in 711851d

stamps/other-submodules.stamp:

[seldridge]

Ping @richardxia. Would you be able to take a look? Your suggestion seems to work great.

[richardxia]

Ping @richardxia. Would you be able to take a look? Your suggestion seems to work great.

Yep, LGTM! Glad that it worked out!