Add JSON.pm to third_party

third_party/JSON/JSON-2.59/t/e04_sortby.t

+
+use Test::More;
+use strict;
+BEGIN { plan tests => 3 };
+BEGIN { $ENV{PERL_JSON_BACKEND} = "JSON::backportPP"; }
+use JSON;
+#########################
+
+my ($js,$obj);
+my $pc = JSON->new;
+
+$obj = {a=>1, b=>2, c=>3, d=>4, e=>5, f=>6, g=>7, h=>8, i=>9};
+
+$js = $pc->sort_by(1)->encode($obj);
+is($js, q|{"a":1,"b":2,"c":3,"d":4,"e":5,"f":6,"g":7,"h":8,"i":9}|);
+
+
+$js = $pc->sort_by(sub { $JSON::PP::a cmp $JSON::PP::b })->encode($obj);
+is($js, q|{"a":1,"b":2,"c":3,"d":4,"e":5,"f":6,"g":7,"h":8,"i":9}|);
+
+$js = $pc->sort_by('hoge')->encode($obj);
+is($js, q|{"a":1,"b":2,"c":3,"d":4,"e":5,"f":6,"g":7,"h":8,"i":9}|);
+
+sub JSON::PP::hoge { $JSON::PP::a cmp $JSON::PP::b }