#! perl
# https://rt.cpan.org/Public/Bug/Display.html?id=61708
use strict;
use Test::More;
BEGIN { plan tests => 1 };
BEGIN { $ENV{PERL_JSON_BACKEND} = 1; }
use JSON; # currently it can't pass with -support_by_pp;
SKIP: {
skip "can't use JSON::XS.", 1, unless( JSON->backend->is_xs );
my $json = JSON->new;
eval q{ $json->encode( undef ) };
like( $@, qr/line 1\./ );
}