c16a9fa493
It works and can format all "plain" Perl data, but has a few known bugs and limitations that still need to be worked out. It's about 8x smaller than JSON::XS's encoder and *much* smaller than Cpanel::JSON::XS, but this is just a first attempt, it'll grow.
88 lines
2.2 KiB
Perl
88 lines
2.2 KiB
Perl
use v5.36;
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use builtin 'true', 'false';
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use Test::More;
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use Tie::Array;
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use Tie::Hash;
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use FU::Util 'json_format';
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# TODO: gab some more tests from other JSON libs
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# TODO: Test invalid utf8
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my @tests = (
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undef, 'null',
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true, 'true',
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false, 'false',
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0, '0',
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1, '1',
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-1, '-1',
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-9223372036854775808, '-9223372036854775808',
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9223372036854775807, '9223372036854775807',
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18446744073709551615, '18446744073709551615',
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0.1, '0.1',
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0.000123, '0.000123',
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-1e100, '-1e+100',
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do { use utf8; (
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"\x01é\r\n\x1f💩", '"\u0001é\r\n\u001f💩"',
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)},
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do { use bytes; (
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"\x011\r\n\x8c", "\"\\u00011\\r\\n\x8c\"",
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"\xff\xff", "\"\xff\xff\"",
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"\x{1f4a9}", do { use utf8; '"💩"' },
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)},
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[], '[]',
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[0,1], '[0,1]',
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[true,'hi',-0.123, [undef]], '[true,"hi",-0.123,[null]]',
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do { tie my @a, 'Tie::StdArray'; @a = (1,2); \@a }, '[1,2]',
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{}, '{}',
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{'a',1}, '{"a":1}',
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do { tie my %h, 'Tie::StdHash'; %h = ('a',1); \%h }, '{"a":1}',
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do { tie my %h, 'MyOrderedHash', one => 1, two => undef, three => []; \%h }, '{"one":1,"two":null,"three":[]}',
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# from http://e-choroba.eu/18-yapc
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$$, $$,
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''.$$, '"'.$$.'"',
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do { my $x = 12; utf8::decode($x); $x }, '"12"',
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do { no warnings 'numeric'; my $x = '19a'; $x += 0; $x }, '19',
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1844674407370955161 / 10, '1.84467440737096e+17',
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);
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plan tests => @tests + 6;
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for my($in, $exp) (@tests) {
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my $out = json_format $in;
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is $out, $exp;
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ok utf8::is_utf8($out);
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}
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# http://e-choroba.eu/18-yapc slide 6
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tie my $incs, 'MyIncrementer', 'Xa';
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is json_format($incs), '"Xa"';
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is json_format($incs), '"Xb"';
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is json_format($incs), '"Xc"';
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tie my $incu, 'MyIncrementer', 4;
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is json_format($incu), 4;
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is json_format($incu), 5;
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is json_format($incu), 6;
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package MyIncrementer;
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use Tie::Scalar;
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use parent -norequire => 'Tie::StdScalar';
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sub TIESCALAR { my ($class, $val) = @_; bless \$val, $class }
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sub FETCH { my $s = shift; $$s++ }
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package MyOrderedHash;
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sub TIEHASH { shift; bless [ [ map $_[$_*2], 0..$#_/2 ], +{@_}, 0 ], __PACKAGE__ };
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sub FETCH { $_[0][1]{$_[1]} }
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sub EXISTS { exists $_[0][1]{$_[1]} }
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sub FIRSTKEY { $_[0][2] = 0; &NEXTKEY }
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sub NEXTKEY { $_[0][0][ $_[0][2]++ ] }
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sub SCALAR { scalar $_[0][0]->@* }
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