--- /dev/null
+# Copyright (C) 2017 all contributors <meta@public-inbox.org>
+# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
+use strict;
+use warnings;
+use Test::More;
+use_ok 'PublicInbox::Hval';
+
+my $ibx = {
+ -no_obfuscate_re => qr/(?:example\.com)\z/i,
+ -no_obfuscate => {
+ 'meta@public-inbox.org' => 1,
+ }
+};
+
+my $html = <<'EOF';
+hello@example.comm
+hello@example.com
+meta@public-inbox.org
+test@public-inbox.org
+EOF
+
+PublicInbox::Hval::obfuscate_addrs($ibx, $html);
+
+my $exp = <<'EOF';
+hello@example•comm
+hello@example.com
+meta@public-inbox.org
+test@public-inbox•org
+EOF
+
+is($html, $exp, 'only obfuscated relevant addresses');
+
+done_testing();