Add some minimal tests of vmstat(1), to serve as regression tests

for PR bin/44518.

distrib/sets/lists/tests/mi

@@ -1,4 +1,4 @@
-# $NetBSD: mi,v 1.554 2014/01/06 14:50:32 gson Exp $
+# $NetBSD: mi,v 1.555 2014/01/07 16:47:13 gson Exp $
 #
 # Note: don't delete entries from here - mark them as "obsolete" instead.
 #
@@ -3065,6 +3065,9 @@
 ./usr/tests/usr.bin/unifdef/d_basic.in		tests-usr.bin-tests	atf
 ./usr/tests/usr.bin/unifdef/d_basic.out		tests-usr.bin-tests	atf
 ./usr/tests/usr.bin/unifdef/t_basic		tests-usr.bin-tests	atf
+./usr/tests/usr.bin/vmstat			tests-usr.bin-tests
+./usr/tests/usr.bin/vmstat/Atffile		tests-usr.bin-tests	atf
+./usr/tests/usr.bin/vmstat/t_vmstat		tests-usr.bin-tests	atf
 ./usr/tests/usr.bin/xlint			tests-usr.bin-tests
 ./usr/tests/usr.bin/xlint/Atffile		tests-usr.bin-tests	atf
 ./usr/tests/usr.bin/xlint/Kyuafile		tests-usr.bin-tests	atf,kyua

etc/mtree/NetBSD.dist.tests

@@ -1,4 +1,4 @@
-#	$NetBSD: NetBSD.dist.tests,v 1.98 2013/08/11 03:53:12 dholland Exp $
+#	$NetBSD: NetBSD.dist.tests,v 1.99 2014/01/07 16:47:13 gson Exp $
 
 ./usr/libdata/debug/usr/tests
 ./usr/libdata/debug/usr/tests/atf
@@ -363,6 +363,7 @@
 ./usr/tests/usr.bin/tmux
 ./usr/tests/usr.bin/tr
 ./usr/tests/usr.bin/unifdef
+./usr/tests/usr.bin/vmstat
 ./usr/tests/usr.bin/xlint
 ./usr/tests/usr.bin/xlint/lint1
 ./usr/tests/usr.sbin

tests/usr.bin/Makefile

@@ -1,4 +1,4 @@
-#	$NetBSD: Makefile,v 1.18 2013/08/10 22:36:16 dholland Exp $
+#	$NetBSD: Makefile,v 1.19 2014/01/07 16:47:13 gson Exp $
 #
 
 .include <bsd.own.mk>
@@ -8,6 +8,6 @@ TESTSDIR=       ${TESTSBASE}/usr.bin
 TESTS_SUBDIRS=	awk basename bzip2 cc cmp config cut \
 		diff dirname find grep gzip id infocmp jot m4 make mkdep \
 		nbperf netpgpverify pr rump_server shmif_dumpbus sdiff \
-		sed sort tmux tr unifdef xlint
+		sed sort tmux tr unifdef vmstat xlint
 
 .include <bsd.test.mk>

tests/usr.bin/vmstat/Makefile

@@ -0,0 +1,8 @@
+# $NetBSD: Makefile,v 1.1 2014/01/07 16:47:13 gson Exp $
+
+.include <bsd.own.mk>
+
+TESTSDIR=	${TESTSBASE}/usr.bin/vmstat
+TESTS_SH=	t_vmstat
+
+.include <bsd.test.mk>

tests/usr.bin/vmstat/t_vmstat.sh

@@ -0,0 +1,48 @@
+# $NetBSD: t_vmstat.sh,v 1.1 2014/01/07 16:47:13 gson Exp $
+#
+# Copyright (c) 2013 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.
+#
+
+atf_test_case default
+default_head() {
+	atf_set "descr" "Test that vmstat(1) returns success when run with no arguments"
+}
+default_body() {
+	atf_check -s exit:0 -o ignore -e empty vmstat
+}
+
+atf_test_case opt_s
+opt_s_head() {
+	atf_set "descr" "Test that vmstat(1) returns success when run with -s (PR 44518)"
+}
+opt_s_body() {
+	atf_check -s exit:0 -o ignore -e empty vmstat -s
+}
+
+atf_init_test_cases()
+{
+	atf_add_test_case default
+	atf_add_test_case opt_s
+}