+ok( $out->add( 99, { foo => { display => 'foo' } } ), 'add another' );
+
+ok( $out->finish );
+
+ok( -e $out->path, "created $path" );
+
+cmp_ok( $out->path, 'eq', $path, 'path' );
+
+ok( my $items = read_file( $path ), 'read_file' );
+
+ok( $items = jsonToObj( $items ), 'parse JSON' );
+
+diag dump( $items ) if $debug;