my $test_name= "no such bundle";
my $err= exception { HTML::EntityReference::ordinal('CapitalDifferentialD', ':fooXX') } ;
ok (defined $err, $test_name);
like ($err, qr/:fooXX/, "$test_name - mentions cause of error");
like ($err, qr/at t\/tests\.t/, "$test_name - carps correctly");