Add some basic tests for chmod(1)

MFC after:	1 month
Sponsored by:	Dell EMC Isilon

bin/chmod/Makefile

@@ -1,7 +1,11 @@
 #	@(#)Makefile	8.1 (Berkeley) 5/31/93
 # $FreeBSD$
 
+.include <src.opts.mk>
+
 PACKAGE=runtime
 PROG=	chmod
 
+SUBDIR.${MK_TESTS}+=	tests
+
 .include <bsd.prog.mk>

bin/chmod/tests/Makefile

@@ -0,0 +1,5 @@
+# $FreeBSD$
+
+ATF_TESTS_SH+=	chmod_test
+
+.include <bsd.test.mk>

bin/chmod/tests/chmod_test.sh

@@ -0,0 +1,160 @@
+#
+# Copyright (c) 2017 Dell EMC
+# 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 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.
+#
+# $FreeBSD$
+
+atf_test_case RH_flag
+RH_flag_head()
+{
+	atf_set	"descr" "Verify that setting modes recursively via -R doesn't " \
+			"affect symlinks specified via the arguments when -H " \
+			"is specified"
+}
+RH_flag_body()
+{
+	atf_check mkdir -m 0777 -p A/B
+	atf_check ln -s B A/C
+	atf_check chmod -h 0777 A/C
+	atf_check -o inline:'40755\n40777\n120777\n' stat -f '%p' A A/B A/C
+	atf_check chmod -RH 0700 A
+	atf_check -o inline:'40700\n40700\n120700\n' stat -f '%p' A A/B A/C
+	atf_check chmod -RH 0600 A/C
+	atf_check -o inline:'40700\n40600\n120700\n' stat -f '%p' A A/B A/C
+}
+
+atf_test_case RL_flag
+RL_flag_head()
+{
+	atf_set	"descr" "Verify that setting modes recursively via -R doesn't " \
+			"affect symlinks specified via the arguments when -L " \
+			"is specified"
+}
+RL_flag_body()
+{
+	atf_check mkdir -m 0777 -p A/B
+	atf_check ln -s B A/C
+	atf_check chmod -h 0777 A/C
+	atf_check -o inline:'40755\n40777\n120777\n' stat -f '%p' A A/B A/C
+	atf_check chmod -RL 0700 A
+	atf_check -o inline:'40700\n40700\n120777\n' stat -f '%p' A A/B A/C
+	atf_check chmod -RL 0600 A/C
+	atf_check -o inline:'40700\n40600\n120777\n' stat -f '%p' A A/B A/C
+}
+
+atf_test_case RP_flag
+RP_flag_head()
+{
+	atf_set	"descr" "Verify that setting modes recursively via -R doesn't " \
+			"affect symlinks specified via the arguments when -P " \
+			"is specified"
+}
+RP_flag_body()
+{
+	atf_check mkdir -m 0777 -p A/B
+	atf_check ln -s B A/C
+	atf_check chmod -h 0777 A/C
+	atf_check -o inline:'40755\n40777\n120777\n' stat -f '%p' A A/B A/C
+	atf_check chmod -RP 0700 A
+	atf_check -o inline:'40700\n40700\n120700\n' stat -f '%p' A A/B A/C
+	atf_check chmod -RP 0600 A/C
+	atf_check -o inline:'40700\n40700\n120600\n' stat -f '%p' A A/B A/C
+}
+
+atf_test_case f_flag cleanup
+f_flag_head()
+{
+	atf_set	"descr" "Verify that setting a mode for a file with -f " \
+			"doesn't emit an error message/exit with a non-zero " \
+			"code"
+}
+
+f_flag_body()
+{
+	atf_check truncate -s 0 foo bar
+	atf_check chmod 0750 foo bar
+	atf_check chflags uchg foo
+	atf_check -e not-empty -s not-exit:0 chmod 0700 foo bar
+	atf_check -o inline:'100750\n100700\n' stat -f '%p' foo bar
+	atf_check -s exit:0 chmod -f 0600 foo bar
+	atf_check -o inline:'100750\n100600\n' stat -f '%p' foo bar
+}
+
+f_flag_cleanup()
+{
+	atf_check chflags 0 foo
+}
+
+atf_test_case h_flag
+h_flag_head()
+{
+	atf_set	"descr" "Verify that setting a mode for a file with -f " \
+			"doesn't emit an error message/exit with a non-zero " \
+			"code"
+}
+
+h_flag_body()
+{
+	atf_check truncate -s 0 foo
+	atf_check chmod 0600 foo
+	atf_check -o inline:'100600\n' stat -f '%p' foo
+	umask 0077
+	atf_check ln -s foo bar
+	atf_check -o inline:'100600\n120700\n' stat -f '%p' foo bar
+	atf_check chmod -h 0500 bar
+	atf_check -o inline:'100600\n120500\n' stat -f '%p' foo bar
+	atf_check chmod 0660 bar
+	atf_check -o inline:'100660\n120500\n' stat -f '%p' foo bar
+}
+
+atf_test_case v_flag
+v_flag_head()
+{
+	atf_set	"descr" "Verify that setting a mode with -v emits the file when " \
+			"doesn't emit an error message/exit with a non-zero " \
+			"code"
+}
+v_flag_body()
+{
+	atf_check truncate -s 0 foo bar
+	atf_check chmod 0600 foo
+	atf_check chmod 0750 bar
+	atf_check -o 'inline:bar\n' chmod -v 0600 foo bar
+	atf_check chmod -v 0600 foo bar
+	for f in foo bar; do
+		echo "$f: 0100600 [-rw------- ] -> 0100700 [-rwx------ ]";
+	done > output.txt
+	atf_check -o file:output.txt chmod -vv 0700 foo bar
+	atf_check chmod -vv 0700 foo bar
+}
+
+atf_init_test_cases()
+{
+	atf_add_test_case RH_flag
+	atf_add_test_case RL_flag
+	atf_add_test_case RP_flag
+	atf_add_test_case f_flag
+	atf_add_test_case h_flag
+	atf_add_test_case v_flag
+}

etc/mtree/BSD.tests.dist

@@ -8,6 +8,8 @@
     bin
         cat
         ..
+        chmod
+        ..
         date
         ..
         dd