Importing NetBSD "Kyua" test framework

To do so, a few dependencies have been imported:

 * external/bsd/lutok
 * external/mit/lua
 * external/public-domain/sqlite
 * external/public-domain/xz

The Kyua framework is the new generation of ATF (Automated Test
Framework), it is composed of:

 * external/bsd/atf
 * external/bsd/kyua-atf-compat
 * external/bsd/kyua-cli
 * external/bsd/kyua-tester
 * tests

Kyua/ATF being written in C++, it depends on libstdc++ which is
provided by GCC. As this is not part of the sources, Kyua is only
compiled when the native GCC utils are installed.

To install Kyua do the following:

 * In a cross-build enviromnent, add the following to the build.sh
   commandline: -V MKBINUTILS=yes -V MKGCCCMDS=yes

WARNING:
  At this point the import is still experimental, and not supported
  on native builds (a.k.a make build).

Change-Id: I26aee23c5bbd2d64adcb7c1beb98fe0d479d7ada

tests/share/examples/Makefile

@@ -0,0 +1,15 @@
+# $NetBSD: Makefile,v 1.2 2013/02/16 21:40:07 jmmv Exp $
+
+.include <bsd.own.mk>
+
+TESTSDIR=	${TESTSBASE}/share/examples
+
+TESTS_SH=	t_asm
+
+.if ${MKKYUA} != "no"
+# These examples come from external/bsd/lutok/tests/share/examples/lutok.
+# Ensure they get registered in the Atffile only when installed.
+ATFFILE_EXTRA_TPS=	lutok
+.endif
+
+.include <bsd.test.mk>

tests/share/examples/t_asm.sh

@@ -0,0 +1,74 @@
+# $NetBSD: t_asm.sh,v 1.1 2013/02/16 12:44:26 jmmv Exp $
+#
+# Copyright (c) 2011 The NetBSD Foundation, Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+
+# check_implemented <example_name>
+#
+# Verifies if a particular asm example is implemented for the current
+# platform.  The example_name argument is the name of the subdirectory
+# of the examples/asm/ subtree that includes the code for the example
+# under test.
+#
+# If the example is not implemented, the calling test is skipped.  If the
+# check for implementation fails, the calling test is failed.
+check_implemented() {
+	local name="${1}"; shift
+
+	local implemented=$(cd /usr/share/examples/asm/${name}/ && \
+	                    make check-implemented)
+	[ $? -eq 0 ] || atf_fail "Failed to determine if the sample" \
+	    "program is supported"
+	[ "${implemented}" = yes ] || atf_skip "Example program not" \
+	    "implemented on this platform"
+}
+
+# copy_example <example_name>
+#
+# Copies the example code and supporting Makefiles into the current
+# directory.
+copy_example() {
+	local name="${1}"; shift
+
+	cp /usr/share/examples/asm/${name}/* .
+}
+
+atf_test_case hello
+hello_head() {
+	atf_set "descr" "Builds, runs and validates the 'hello' asm example"
+	atf_set "require.files" "/usr/share/examples/asm/hello/"
+	atf_set "require.progs" "make"
+}
+hello_body() {
+	check_implemented hello
+	copy_example hello
+	atf_check -s exit:0 -o ignore -e ignore make
+	atf_check -s exit:0 -o inline:'Hello, world!\n' -e empty ./hello
+}
+
+atf_init_test_cases() {
+	atf_add_test_case hello
+}