Revert 205057 "Add JSON.pm to third_party"

trunk/src/third_party/JSON/JSON-2.59/t/20_unknown.t

-#!/usr/bin/perl -w
-
-use strict;
-
-use Test::More;
-BEGIN { plan tests => 10 };
-BEGIN { $ENV{PERL_JSON_BACKEND} = "JSON::backportPP"; }
-
-
-use strict;
-use JSON;
-
-my $json = JSON->new;
-
-eval q| $json->encode( [ sub {} ] ) |;
-ok( $@ =~ /encountered CODE/, $@ );
-
-eval q|  $json->encode( [ \-1 ] ) |;
-ok( $@ =~ /cannot encode reference to scalar/, $@ );
-
-eval q|  $json->encode( [ \undef ] ) |;
-ok( $@ =~ /cannot encode reference to scalar/, $@ );
-
-eval q|  $json->encode( [ \{} ] ) |;
-ok( $@ =~ /cannot encode reference to scalar/, $@ );
-
-$json->allow_unknown;
-
-is( $json->encode( [ sub {} ] ), '[null]' );
-is( $json->encode( [ \-1 ] ),    '[null]' );
-is( $json->encode( [ \undef ] ), '[null]' );
-is( $json->encode( [ \{} ] ),    '[null]' );
-
-
-SKIP: {
-
-    skip "this test is for Perl 5.8 or later", 2 if( $] < 5.008 );
-
-$json->allow_unknown(0);
-
-my $fh;
-open( $fh, '>hoge.txt' ) or die $!;
-
-eval q| $json->encode( [ $fh ] ) |;
-ok( $@ =~ /encountered GLOB/, $@ );
-
-$json->allow_unknown(1);
-
-is( $json->encode( [ $fh ] ),    '[null]' );
-
-close $fh;
-
-unlink('hoge.txt');
-
-}