--- CBOR-XS/t/51_types.t	2013/10/28 15:37:11	1.2
+++ CBOR-XS/t/51_types.t	2013/11/30 17:19:34	1.3
@@ -1,4 +1,4 @@
-BEGIN { $| = 1; print "1..11\n"; }
+BEGIN { $| = 1; print "1..21\n"; }
 
 use Types::Serialiser;
 use CBOR::XS;
@@ -31,3 +31,31 @@
 $dec = decode_cbor $enc;
 print !defined $dec ? "" : "not ", "ok 11\n";
 
+my $c = CBOR::XS->new->allow_sharing;
+
+$enc = $c->encode (Types::Serialiser::false);
+print $enc ne "\xf4" ? "not " : "", "ok 12\n";
+
+$dec = $c->decode ($enc);
+print Types::Serialiser::is_false $dec ? "" : "not ", "ok 13\n";
+print Types::Serialiser::is_bool  $dec ? "" : "not ", "ok 14\n";
+
+$enc = $c->encode (Types::Serialiser::true);
+print $enc ne "\xf5" ? "not " : "", "ok 15\n";
+
+$dec = $c->decode ($enc);
+print Types::Serialiser::is_true  $dec ? "" : "not ", "ok 16\n";
+print Types::Serialiser::is_bool  $dec ? "" : "not ", "ok 17\n";
+
+$enc = $c->encode (Types::Serialiser::error);
+print $enc ne "\xf7" ? "not " : "", "ok 18\n";
+
+$dec = $c->decode ($enc);
+print Types::Serialiser::is_error $dec ? "" : "not ", "ok 19\n";
+
+$enc = $c->encode (undef);
+print $enc ne "\xf6" ? "not " : "", "ok 20\n";
+
+$dec = $c->decode ($enc);
+print !defined $dec ? "" : "not ", "ok 21\n";
+