is($html, $exp, 'only obfuscated relevant addresses');
+$exp = 'https://example.net/foo@example.net';
+PublicInbox::Hval::obfuscate_addrs($ibx, my $res = $exp);
+is($res, $exp, 'does not obfuscate URL with Message-ID');
+
is(PublicInbox::Hval::to_filename('foo bar '), 'foo-bar',
'to_filename has no trailing -');