+# Commands operating on sets
+
+my $set = 'test-set';
+$o->del($set);
+
+ok( $o->sadd( $set, 'foo' ), 'sadd' );
+ok( ! $o->sadd( $set, 'foo' ), 'sadd' );
+
+cmp_ok( $o->type( $set ), 'eq', 'set', 'type is set' );
+
+ok( $o->srem( $set, 'foo' ), 'srem' );
+ok( ! $o->srem( $set, 'foo' ), 'srem again' );
+