diff --git a/xCAT-test/unit/utils_comma_list.t b/xCAT-test/unit/utils_comma_list.t
new file mode 100644
index 000000000..4a9e98373
--- /dev/null
+++ b/xCAT-test/unit/utils_comma_list.t
@@ -0,0 +1,39 @@
+#!/usr/bin/env perl
+use strict;
+use warnings;
+
+use FindBin;
+use lib "$FindBin::Bin/../../perl-xCAT";
+
+use Test::More;
+
+use xCAT::Utils;
+
+my @cases = (
+    [undef,                 'pdu',     0, 'undefined list does not match'],
+    ['',                    'pdu',     0, 'empty list does not match'],
+    ['pdu',                 undef,     0, 'undefined target does not match'],
+    ['pdu',                 'pdu',     1, 'single value matches'],
+    ['pdu,openbmc',         'openbmc', 1, 'comma-list value matches'],
+    [' pdu , openbmc ',     'pdu',     1, 'leading and trailing item whitespace is ignored'],
+    [' pdu , openbmc ',     'openbmc', 1, 'whitespace is ignored for later items'],
+    ['0',                   '0',       1, 'defined zero matches'],
+    ['not-pdu',             'pdu',     0, 'hyphenated prefix is not a match'],
+    ['pdu-extra',           'pdu',     0, 'hyphenated suffix is not a match'],
+    ['pdu.extra',           'pdu',     0, 'dotted suffix is not a match'],
+    ['.pdu,pdu.,-pdu,pdu-', '.pdu',    1, 'leading punctuation matches exactly'],
+    ['.pdu,pdu.,-pdu,pdu-', 'pdu.',    1, 'trailing punctuation matches exactly'],
+    ['.pdu,pdu.,-pdu,pdu-', '-pdu',    1, 'leading hyphen matches exactly'],
+    ['.pdu,pdu.,-pdu,pdu-', 'pdu-',    1, 'trailing hyphen matches exactly'],
+);
+
+foreach my $case (@cases) {
+    my ($list, $value, $expected, $description) = @$case;
+    is(
+        xCAT::Utils->comma_list_contains($list, $value),
+        $expected,
+        $description,
+    );
+}
+
+done_testing();