# copied over from JSON::XS and modified to use JSON

use strict;
no warnings;
use Test::More;
BEGIN { plan tests => 745 };

BEGIN { $ENV{PERL_JSON_BACKEND} ||= "JSON::backportPP"; }

use JSON;

sub splitter {
   my ($coder, $text) = @_;

   # work around hash randomisation bug introduced in 5.18
   $coder->canonical;

   for (0 .. length $text) {
      my $a = substr $text, 0, $_;
      my $b = substr $text, $_;

      $coder->incr_parse ($a);
      $coder->incr_parse ($b);

      my $data = $coder->incr_parse;
      #ok (defined $data, "split<$a><$b>");
      ok (defined $data, "split");
      my $e1 = $coder->encode ($data);
      my $e2 = $coder->encode ($coder->decode ($text));
      #ok ($e1 eq $e2, "data<$a><$b><$e1><$e2>");
      #ok ($coder->incr_text =~ /^\s*$/, "tailws<$a><$b>");
      ok ($e1 eq $e2, "data");
      ok ($coder->incr_text =~ /^\s*$/, "tailws");
   }
}

splitter +JSON->new->allow_nonref (0), '  ["x\\"","\\u1000\\\\n\\nx",1,{"\\\\" :5 , "": "x"}]';
splitter +JSON->new->allow_nonref (0), '[ "x\\"","\\u1000\\\\n\\nx" , 1,{"\\\\ " :5 , "": " x"} ] ';
splitter +JSON->new->allow_nonref (1), '"test"';
splitter +JSON->new->allow_nonref (1), ' "5" ';
splitter +JSON->new->allow_nonref (1), '-1e5';
SKIP: { skip "requires $JSON::BackendModule 3 or newer", 33 if $JSON::BackendModulePP and eval $JSON::BackendModulePP->VERSION < 3;
splitter +JSON->new->allow_nonref (1), ' 0.00E+00 ';
}

{
   my $text = '[5],{"":1} , [ 1,2, 3], {"3":null}';
   my $coder = JSON->new;
   for (0 .. length $text) {
      my $a = substr $text, 0, $_;
      my $b = substr $text, $_;

      $coder->incr_parse ($a);
      $coder->incr_parse ($b);

      my $j1 = $coder->incr_parse; ok ($coder->incr_text =~ s/^\s*,//, "cskip1");
      my $j2 = $coder->incr_parse; ok ($coder->incr_text =~ s/^\s*,//, "cskip2");
      my $j3 = $coder->incr_parse; ok ($coder->incr_text =~ s/^\s*,//, "cskip3");
      my $j4 = $coder->incr_parse; ok ($coder->incr_text !~ s/^\s*,//, "cskip4");
      my $j5 = $coder->incr_parse; ok ($coder->incr_text !~ s/^\s*,//, "cskip5");

      ok ('[5]' eq encode_json($j1), "cjson1");
      ok ('{"":1}' eq encode_json($j2), "cjson2");
      ok ('[1,2,3]' eq encode_json($j3), "cjson3");
      ok ('{"3":null}' eq encode_json($j4), "cjson4");
      ok (!defined $j5, "cjson5");
   }
}

{
   my $text = '[x][5]';
   my $coder = JSON->new;
   $coder->incr_parse ($text);
   ok (!eval { $coder->incr_parse }, "sparse1");
   ok (!eval { $coder->incr_parse }, "sparse2");
   $coder->incr_skip;
   ok ('[5]' eq $coder->encode (scalar $coder->incr_parse), "sparse3");
}

{
   my $coder = JSON->new->max_size (5);
   ok (!$coder->incr_parse ("[    "), "incsize1");
   eval { !$coder->incr_parse ("]  ") }; ok ($@ =~ /6 bytes/, "incsize2 $@");
}

{
   my $coder = JSON->new->max_depth (3);
   ok (!$coder->incr_parse ("[[["), "incdepth1");
   eval { !$coder->incr_parse (" [] ") }; ok ($@ =~ /maximum nesting/, "incdepth2 $@");
}

# contributed by yuval kogman, reformatted to fit style
{
   my $coder = JSON->new;
   
   my $res = eval { $coder->incr_parse("]") };
   my $e = $@; # test more clobbers $@, we need it twice
   
   ok (!$res, "unbalanced bracket");
   ok ($e, "got error");
   like ($e, qr/malformed/, "malformed json string error");
   
   $coder->incr_skip;
   
   is_deeply (eval { $coder->incr_parse("[42]") }, [42], "valid data after incr_skip");
}