MFC r289172,r290254:

r289172:

Refactor the test/ Makefiles after recent changes to bsd.test.mk (r289158) and
netbsd-tests.test.mk (r289151)

- Eliminate explicit OBJTOP/SRCTOP setting
- Convert all ad hoc NetBSD test integration over to netbsd-tests.test.mk
- Remove unnecessary TESTSDIR setting
- Use SRCTOP where possible for clarity

r290254:

Remove unused variable (SRCDIR)

MFC r277627,r277650,r282059,r283056,r283840,r283845:

r277627 (by will):

Add routing_test:static_ipv6_loopback_route_for_each_fib.
It tests that all FIBs get a static IPv6 loopback route.

Submitted by: asomers
Sponsored by: Spectra Logic
MFSpectraBSD: 1048456 on 2014/03/13
1114523 on 2015/01/23

r277650 (by will):

Add tests/etc/rc.d to mtree.

Submitted by: stefanf
MFC with: 277627

r282059:

Move etc/tests/rc.d to etc/rc.d/tests to match the directory layout jmmv@
documented and implemented in other areas of the FreeBSD tree

r283056:

Move all test integration pieces for etc/ from etc/ to tests/

This is being done to fix breakage with make distribution with read-only
source trees as make distribution doesn't use make obj like building
tests/ does in all cases

Reported by: Wolfgang Zenker <wolfgang@lyxys.ka.sub.org>
Suggested by: jhb

r283840:

Remove empty tests directory

r283845:

Append to SUBDIR, not set it

Pointyhat to: ngie

Move all test integration pieces for etc/ from etc/ to tests/

This is being done to fix breakage with make distribution with read-only
source trees as make distribution doesn't use make obj like building
tests/ does in all cases

Reported by: Wolfgang Zenker <wolfgang@lyxys.ka.sub.org>
Suggested by: jhb
X-MFC with: r282059
MFC after: 1 week

Move etc/tests/rc.d to etc/rc.d/tests to match the directory layout jmmv@
documented and implemented in other areas of the FreeBSD tree

MFC after: 1 week

Add routing_test:static_ipv6_loopback_route_for_each_fib.
It tests that all FIBs get a static IPv6 loopback route.

Submitted by: asomers
MFC after: 1 week
Sponsored by: Spectra Logic
MFSpectraBSD: 1048456 on 2014/03/13
1114523 on 2015/01/23

Add placeholder Kyuafiles for various top-level hierarchies.

This change adds tests/ directories in the source tree to create various
subdirectories in /usr/tests/ and to install placeholder Kyuafiles for
them.

the relevant hierarchies are: cddl, etc, games, gnu and secure.

The reason for this is to simplify the addition of new test programs for
utilities or libraries under any of these directories. Doing so on a
case by case basis is unnecessary and is quite an obscure process.