hostname(1): Add test cases

Sponsored by:	The FreeBSD Foundation
Pull Request:	https://github.com/freebsd/freebsd-src/pull/1069

bin/hostname/Makefile

@@ -1,5 +1,9 @@
+.include <src.opts.mk>
 
 PACKAGE=runtime
 PROG=	hostname
 
+HAS_TESTS=
+SUBDIR.${MK_TESTS}=	tests
+
 .include <bsd.prog.mk>

bin/hostname/tests/Makefile

@@ -0,0 +1,6 @@
+PACKAGE=	tests
+
+ATF_TESTS_SH=	hostname_test
+BINDIR=		${TESTSDIR}
+
+.include <bsd.test.mk>

bin/hostname/tests/hostname_test.sh

@@ -0,0 +1,87 @@
+#-
+# SPDX-License-Identifier: BSD-2-Clause
+#
+# Copyright (c) 2024 Lin Lee <leelin2602@gmail.com>
+#
+# 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 AUTHOR 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 AUTHOR 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.
+#
+
+#
+# These tests need to run in a multibyte locale with non-localized
+# error messages.
+#
+export LC_CTYPE=C.UTF-8
+export LC_MESSAGES=C
+
+test_jail_name="test-hostname-jail"
+
+test_jail_conf='%%test_jail_name%% {
+    host.hostname = "test-hostname.example.org";
+    path = "/";
+    persist;
+}'
+
+init()
+{
+    echo "${test_jail_conf}" | \
+	    sed -e "s/%%test_jail_name%%/${test_jail_name}/" > "./jail.conf"
+    jail -f "./jail.conf" -c ${test_jail_name}
+}
+
+recycle()
+{
+    jail -f "./jail.conf" -r ${test_jail_name}
+    rm "./jail.conf"
+}
+
+atf_test_case basic cleanup
+basic_head()
+{
+    atf_set require.user root
+    atf_set "descr" "basic test for getting hostname"
+}
+basic_body()
+{
+    init
+
+    result=$(jexec ${test_jail_name} "hostname")
+    atf_check_equal "test-hostname.example.org" "${result}"
+
+    result=$(jexec ${test_jail_name} "hostname" -s)
+    atf_check_equal "test-hostname" "${result}"
+
+    result=$(jexec ${test_jail_name} "hostname" -d)
+    atf_check_equal "example.org" "${result}"
+
+    jexec ${test_jail_name} "hostname" "test-bsd2"
+    result=$(jexec ${test_jail_name} "hostname")
+    atf_check_equal "test-bsd2" "${result}"
+}
+basic_cleanup()
+{
+    recycle
+}
+
+atf_init_test_cases()
+{
+    atf_add_test_case basic
+}

etc/mtree/BSD.tests.dist

@@ -33,6 +33,8 @@
         ..
         expr
         ..
+        hostname
+        ..
         ln
         ..
         ls