Add JSON.pm to third_party

third_party/JSON/JSON-2.59/t/22_comment_at_eof.t

+# the oritinal test case was provided by IKEGAMI@cpan.org
+
+use strict;
+
+use Test::More tests => 13;
+
+BEGIN { $ENV{PERL_JSON_BACKEND} = "JSON::backportPP"; }
+
+use JSON;
+
+use Data::Dumper qw( Dumper );
+
+sub decoder {
+   my ($str) = @_;
+
+   my $json = JSON->new->relaxed;
+
+   $json->incr_parse($_[0]);
+
+   my $rv;
+   if (!eval { $rv = $json->incr_parse(); 1 }) {
+       $rv = "died with $@";
+   }
+
+   local $Data::Dumper::Useqq = 1;
+   local $Data::Dumper::Terse = 1;
+   local $Data::Dumper::Indent = 0;
+
+   return Dumper($rv);
+}
+
+
+is( decoder( "[]"        ), '[]', 'array baseline' );
+is( decoder( " []"       ), '[]', 'space ignored before array' );
+is( decoder( "\n[]"      ), '[]', 'newline ignored before array' );
+is( decoder( "# foo\n[]" ), '[]', 'comment ignored before array' );
+is( decoder( "# fo[o\n[]"), '[]', 'comment ignored before array' );
+is( decoder( "# fo]o\n[]"), '[]', 'comment ignored before array' );
+is( decoder( "[# fo]o\n]"), '[]', 'comment ignored inside array' );
+
+is( decoder( ""        ), 'undef', 'eof baseline' );
+is( decoder( " "       ), 'undef', 'space ignored before eof' );
+is( decoder( "\n"      ), 'undef', 'newline ignored before eof' );
+is( decoder( "#,foo\n" ), 'undef', 'comment ignored before eof' );
+is( decoder( "# []o\n" ), 'undef', 'comment ignored before eof' );
+
+is( decoder( qq/#\n[#foo\n"#\\n"#\n]/), '["#\n"]', 'array and string in multiple lines' );