Add JSON.pm to third_party

third_party/JSON/JSON-2.59/t/12_blessed.t

+# copied over from JSON::XS and modified to use JSON
+
+use strict;
+use Test::More;
+BEGIN { plan tests => 16 };
+
+BEGIN { $ENV{PERL_JSON_BACKEND} = "JSON::backportPP"; }
+
+use JSON;
+
+
+my $o1 = bless { a => 3 }, "XX";
+my $o2 = bless \(my $dummy = 1), "YY";
+
+sub XX::TO_JSON {
+   {'__',""}
+}
+
+my $js = JSON->new;
+
+eval { $js->encode ($o1) }; ok ($@ =~ /allow_blessed/);
+eval { $js->encode ($o2) }; ok ($@ =~ /allow_blessed/);
+$js->allow_blessed;
+ok ($js->encode ($o1) eq "null");
+ok ($js->encode ($o2) eq "null");
+$js->convert_blessed;
+ok ($js->encode ($o1) eq '{"__":""}');
+
+ok ($js->encode ($o2) eq "null");
+
+$js->filter_json_object (sub { 5 });
+$js->filter_json_single_key_object (a => sub { shift });
+$js->filter_json_single_key_object (b => sub { 7 });
+
+ok ("ARRAY" eq ref $js->decode ("[]"));
+ok (5 eq join ":", @{ $js->decode ('[{}]') });
+ok (6 eq join ":", @{ $js->decode ('[{"a":6}]') });
+ok (5 eq join ":", @{ $js->decode ('[{"a":4,"b":7}]') });
+
+$js->filter_json_object;
+ok (7 == $js->decode ('[{"a":4,"b":7}]')->[0]{b});
+ok (3 eq join ":", @{ $js->decode ('[{"a":3}]') });
+
+$js->filter_json_object (sub { });
+ok (7 == $js->decode ('[{"a":4,"b":7}]')->[0]{b});
+ok (9 eq join ":", @{ $js->decode ('[{"a":9}]') });
+
+$js->filter_json_single_key_object ("a");
+ok (4 == $js->decode ('[{"a":4}]')->[0]{a});
+
+#$js->filter_json_single_key_object (a => sub {});
+$js->filter_json_single_key_object (a => sub { return; }); # sub {} is not suitable for Perl 5.6 
+ok (4 == $js->decode ('[{"a":4}]')->[0]{a});