}
my( $rs_from_list ) = $artist->search_related_rs('cds');
-is( ref($rs_from_list), 'DBIx::Class::ResultSet', 'search_related_rs in list context returns rs' );
+isa_ok( $rs_from_list, 'DBIx::Class::ResultSet', 'search_related_rs in list context returns rs' );
( $rs_from_list ) = $artist->cds_rs();
-is( ref($rs_from_list), 'DBIx::Class::ResultSet', 'relation_rs in list context returns rs' );
+isa_ok( $rs_from_list, 'DBIx::Class::ResultSet', 'relation_rs in list context returns rs' );
# count_related
is( $artist->count_related('cds'), 4, 'count_related ok' );