How to run bash test suite

[Phi Debian]

Hi All,
I tried to subscribe to bug-bash but never got the confirmation mail.

I grabed the latest source code available with my ubunto distro and
made a bash build. All is fine. I'd like to run the test suite, and I
found no docco about it. Did a brute "make test" from the build src
dir, but I don't understand how to decipher all the output there,
should I trust it and place it in a reference output before doing
shell hacks experiments and rerun and compare outputs ? Or does the
test self sufficient, i.e produce errors in its outputs ? I can see
warning: may be errors will shows up as error: and then a simple make
test >out 2>&1 is enough then grep error: out

Any help appreciated.
Cheers,
Phi