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#!/usr/bin/perl -w
use strict;
use Test::More tests => 59;
use Test::Exception;
BEGIN { use_ok( 'CGI::Expand' ); }
my $query = 'a.0=3&a.2=4&b.c.0=x&c.0=2&c.1=3&d=';
my $flat = {
'a.0' => 3, 'a.2' => 4, 'b.c.0' => "x", 'c.0' => 2, 'c.1' => 3, d => '',
};
my $deep = {
a => [3,undef,4],
b => { c => ['x'] },
c => ['2','3'],
d => '',
};
my $pipe_flat = {
'a|0' => 3, 'a|2' => 4, 'b|c|0' => "x", 'c|0' => 2, 'c|1' => 3, d => '',
};
my $deep_hash_only = {
a => { 0 => 3, 2 => 4 },
b => { c => { 0 => 'x' } },
c => { 0 => '2', 1 => '3'},
d => '',
};
#use Data::Dumper;
#diag Dumper(CGI::Expand->collapse_hash($deep));
#diag Dumper($flat);
sub Fake::param {
shift;
return keys %$flat unless @_;
return $flat->{$_[0]};
}
# only uses param interface
is_deeply( expand_cgi(bless []=>'Fake'), $deep, 'param interface');
CGI::Expand->import('expand_hash','collapse_hash');
is_deeply( expand_hash($flat), $deep, 'expand_hash');
is_deeply( collapse_hash($deep), $flat, 'collapse_hash');
isa_ok(expand_hash({1,2}), 'HASH');
is_deeply(expand_hash({'1.0',2}), {1=>[2]}, 'top level always hash (digits)');
is_deeply(expand_hash(), {}, 'top level always hash (empty)');
my @array_99;
$array_99[99] = 1;
is_deeply(expand_hash({'a.99',1}), {a=>\@array_99}, ' < 100 array' );
throws_ok { expand_hash({'a.100',1}) } qr/^CGI param array limit exceeded/;
is_deeply(expand_hash({'a.\\100',1}), {a=>{100=>1}}, ' \100 hash' );
{
# Limit adjustable
local $CGI::Expand::Max_Array = 200;
local $CGI::Expand::BackCompat = 1;
my @array_199;
$array_199[199] = 1;
is_deeply(expand_hash({'a.199',1}), {a=>\@array_199}, ' < 200 array' );
throws_ok { expand_hash({'a.200',1}) } qr/^CGI param array limit exceeded/;
is_deeply(expand_hash({'a.\200',1}), {a=>{200=>1}}, ' \200 hash' );
}
throws_ok { expand_hash($_) } qr/^CGI param clash/
for ( {'a.1',1,'a.b',1},
{'a.1',1,'a',1},
{'a.b',1,'a',1},
);
# escaping and weird cases
my $ds = "\\\\";
is_deeply(expand_hash({'a.\0'=>1}), {a=>{0=>1}}, '\digit' );
is_deeply(expand_hash({'a.\0\\'=>1}), {a=>{'0\\'=>1}}, '\ at end' );
is_deeply(expand_hash({'a\.0'=>1}), {'a.0'=>1}, '\dot' );
is_deeply(expand_hash({'\a.0'=>1}), {'a'=>[1]}, '\ first alpha' );
is_deeply(expand_hash({'a\a.0'=>1}), {'aa'=>[1]}, '\ other alpha' );
is_deeply(expand_hash({"$ds.0"=>1}), {'\\'=>[1]}, '\ only first' );
is_deeply(expand_hash({"a.$ds.0"=>1}), {a=>{'\\'=>[1]}}, '\ only other' );
is_deeply(expand_hash({"${ds}a"=>1}), {'\\a'=>1}, 'double \ to one' );
is_deeply(expand_hash({"a$ds.0"=>1}), {'a\\'=>[1]}, 'double \ dot to one' );
is_deeply(expand_hash({'.a.'=>1}), {''=>{a=>{''=>1}}}, 'dot start end' );
is_deeply(expand_hash({'a..0'=>1}), {a=>{''=>[1]}}, 'dot dot middle' );
is_deeply(expand_hash({'a..'=>1}), {a=>{''=>{''=>1}}}, 'dot dot end' );
is_deeply(expand_hash({'.'=>1}), {''=>{''=>1}}, 'dot only' );
is_deeply(expand_hash({''=>1}), {''=>1}, 'empty key' );
SKIP: {
skip "No CGI module", 10 unless eval 'use CGI; 1';
is_deeply( expand_cgi(CGI->new($query)), $deep, 'expand_cgi');
is_deeply( expand_cgi(CGI->new("$query&c.x=20&c.y=30")), $deep,
'expand_cgi ignores .x .y');
ok(eq_set( ( expand_cgi(CGI->new('a=1&a=2')) )->{a}, [2, 1]),
'cgi multivals');
throws_ok { expand_cgi(CGI->new($_)) } qr/^CGI param clash/
for (
'a.0=3&a.c=4',
'a.c=3&a.0=4',
'a.0=3&a=b',
'a.a=3&a=b',
'a=3&a.0=b',
'a=3&a.a=b',
'a=3&a=4&a.b=1',
);
}
{
# Disable Array, treat everything as a hash
local $CGI::Expand::Max_Array = 0;
local $CGI::Expand::BackCompat = 1;
# $flat from above
is_deeply( expand_hash($flat), $deep_hash_only, 'expand hash only');
is_deeply( collapse_hash($deep_hash_only), $flat, 'collapse hash only');
is_deeply( expand_hash(collapse_hash($deep_hash_only)), $deep_hash_only,
'round trip hash only');
}
{
local $CGI::Expand::Separator = '|'; # Another regex metacharacter
local $CGI::Expand::BackCompat = 1;
is_deeply( CGI::Expand->expand_hash($pipe_flat), $deep,
'expand sep | with class method');
is_deeply( CGI::Expand->collapse_hash($deep), $pipe_flat,
'collapse sep | with class method');
}
{
package Subclass::Empty;
our @ISA = qw(CGI::Expand);
package Subclass::Empty::main;
use Test::More;
Subclass::Empty->import();
is_deeply( expand_cgi(bless []=>'Fake'), $deep, 'subclass param interface');
Subclass::Empty->import('expand_hash', 'collapse_hash');
is_deeply( expand_hash($flat), $deep, 'subclass expand_hash');
is_deeply( collapse_hash($deep), $flat, 'subclass collapse_hash');
}
{
package Subclass::Pipe;
our @ISA = qw(CGI::Expand);
sub separator { '.|' }
package Subclass::Pipe::main;
use Test::More;
Subclass::Pipe->import();
is_deeply( expand_cgi(bless []=>'Fake'), $deep, 'subclass param interface');
Subclass::Pipe->import('expand_hash', 'collapse_hash');
is_deeply( expand_hash($flat), $deep, 'pipe subclass expand_hash');
is_deeply( expand_hash($pipe_flat), $deep,'pipe subclass hash pipe :)');
is_deeply( collapse_hash($deep), $flat, 'pipe subclass collapse_hash');
}
{
package Subclass::NoArray;
our @ISA = qw(CGI::Expand);
sub max_array { 0 }
package Subclass::NoArray::main;
use Test::More;
Subclass::NoArray->import();
is_deeply( expand_cgi(bless []=>'Fake'), $deep_hash_only,
'subclass param hash only');
Subclass::NoArray->import('expand_hash', 'collapse_hash');
is_deeply( expand_hash($flat), $deep_hash_only,'subclass expand hash only');
is_deeply( collapse_hash($deep_hash_only), $flat,
'subclass collapse hash only');
is_deeply( expand_hash(collapse_hash($deep_hash_only)), $deep_hash_only,
'subclass round trip hash only');
}
{
package Subclass::Rails;
our @ISA = qw(CGI::Expand);
sub max_array { 0 }
sub separator { '.[]' }
sub split_name {
my $class = shift;
my $name = shift;
$name =~ /^ ([^\[\]\.]+) /xg;
my @segs = $1;
push @segs, ($name =~ / \G (?: \[ ([^\[\]\.]+) \] ) /xg);
return @segs;
}
sub join_name {
my $class = shift;
my ($first, @segs) = @_;
return $first unless @segs;
return "$first\[".join('][',@segs)."]";
}
package Subclass::Rails::main;
use Test::More;
Subclass::Rails->import('expand_hash', 'collapse_hash');
my $rails_flat = { 'a' => 1, 'b[c]' => 2, 'b[d][e]' => undef, 'b[2]' => 3 };
my $rails_deep = {
a => '1', b => { c => 2, d => { e => undef }, '2' => 3 }
};
is_deeply( expand_hash($rails_flat), $rails_deep,
'[] convention expands');
is_deeply( collapse_hash($rails_deep), $rails_flat,
'[] convention collapses');
is_deeply( expand_hash(collapse_hash($rails_deep)), $rails_deep,
'[] convention round trips');
}
#my $mix_flat = { 'a' => 1, 'b[c]' => 2, 'b.d.e' => undef };
#my $mix_deep = {
# a => '1', b => { c => 2, d => { e => undef } }
# };
#is_deeply( expand_hash($mix_flat), $mix_deep, '[] convention expands');
#is_deeply( collapse_hash($mix_deep), $mix_flat, '[] convention collapses');
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