touch: Tests for -h flag

Reviewed by:	kevans
Approved by:	kevans
Sponsored by:	Klara, Inc.
Differential Revision:	https://reviews.freebsd.org/D54836

usr.bin/touch/tests/touch_test.sh

@@ -144,6 +144,35 @@ touch_nocreate_body()
 	atf_check -s exit:1 test -f bar
 }
 
+atf_test_case touch_symlink_h_flag
+touch_symlink_h_flag_head()
+{
+	atf_set descr "Update time of symlink but not file pointed to"
+}
+touch_symlink_h_flag_body()
+{
+	atf_check touch -t 200406151337 pointed
+	atf_check ln -s pointed symlink
+	atf_check touch -t 197209071337 -h symlink
+	atf_check_mtime 1087306620 pointed
+	atf_check_mtime 84721020 symlink
+}
+
+atf_test_case touch_symlink_no_h_flag
+touch_symlink_no_h_flag_head()
+{
+	atf_set descr "Update time of file pointed to but not symlink"
+}
+touch_symlink_no_h_flag_body()
+{
+	atf_check touch -t 200406151337 pointed
+	atf_check ln -s pointed symlink
+	local orig_mtime=$(stat -f %m symlink)
+	atf_check touch -t 197209071337 symlink
+	atf_check_mtime 84721020 pointed
+	atf_check_mtime $orig_mtime symlink
+}
+
 atf_init_test_cases()
 {
 	atf_add_test_case touch_none
@@ -153,5 +182,7 @@ atf_init_test_cases()
 	atf_add_test_case touch_relative
 	atf_add_test_case touch_copy
 	atf_add_test_case touch_nocreate
-	# TODO: add test cases for -a, -h, -m
+	atf_add_test_case touch_symlink_h_flag
+	atf_add_test_case touch_symlink_no_h_flag
+	# TODO: add test cases for -a, -m
 }