We've been sorely lacking a way to test the configure script, leading to
just pre-checkin adhoc testing.
Here is a simple framework for running unit tests of functions in our
configure script. The initial tests included are more to be considered
placeholders.
I put the assert function in util.m4 and not test.m4, since I think it
can be useful to add asserts not only in test code. I presume this
simple assert function will grow into a family as the need to assert
other things than string equality arises.
test-configure.sh is essentially a stripped-down version of the main
make/autoconf/configure script. I've used the custom extension mechanism
to hook in the unit testing framework in configure.ac.
Bug: https://bugs.openjdk.java.net/browse/JDK-8239860
WebRev:
http://cr.openjdk.java.net/~ihse/JDK-8239860-add-testing-of-configure/webrev.01
/Magnus
