source: trunk/essentials/dev-lang/perl/ext/Encode/t/perlio.t@ 3221

BEGIN {
    if ($ENV{'PERL_CORE'}){
        chdir 't';
        unshift @INC, '../lib';
    }
    require Config; import Config;
    if ($Config{'extensions'} !~ /\bEncode\b/) {
      print "1..0 # Skip: Encode was not built\n";
      exit 0;
    }
    if (ord("A") == 193) {
        print "1..0 # Skip: EBCDIC\n";
        exit 0;
    }
    unless (PerlIO::Layer->find('perlio')){
        print "1..0 # Skip: PerlIO required\n";
        exit 0;
    }
    $| = 1;
}

use strict;
use File::Basename;
use File::Spec;
use File::Compare qw(compare_text);
use File::Copy;
use FileHandle;

#use Test::More qw(no_plan);
use Test::More tests => 38;

our $DEBUG = 0;

use Encode (":all");
{
    no warnings;
    @ARGV and $DEBUG = shift;
    #require Encode::JP::JIS7;
    #require Encode::KR::2022_KR;
    #$Encode::JP::JIS7::DEBUG = $DEBUG;
}

my $seq = 0;
my $dir = dirname(__FILE__);

my %e = 
    (
     jisx0208 => [ qw/euc-jp shiftjis 7bit-jis iso-2022-jp iso-2022-jp-1/],
     ksc5601  => [ qw/euc-kr/],
     gb2312   => [ qw/euc-cn hz/],
    );

$/ = "\x0a"; # may fix VMS problem for test #28 and #29

for my $src (sort keys %e) {
    my $ufile = File::Spec->catfile($dir,"$src.utf");
    open my $fh, "<:utf8", $ufile or die "$ufile : $!";
    my @uline = <$fh>;
    my $utext = join('' => @uline);
    close $fh;

    for my $e (@{$e{$src}}){
        my $sfile = File::Spec->catfile($dir,"$$.sio");
        my $pfile = File::Spec->catfile($dir,"$$.pio");
    
        # first create a file without perlio
        dump2file($sfile, &encode($e, $utext, 0));
    
        # then create a file via perlio without autoflush

    SKIP:{
            skip "$e: !perlio_ok", 4 unless (perlio_ok($e) or $DEBUG);
            no warnings 'uninitialized';
            open $fh, ">:encoding($e)", $pfile or die "$sfile : $!";
            $fh->autoflush(0);
            print $fh $utext;
            close $fh;
            $seq++;
            is(compare_text($sfile, $pfile), 0 => ">:encoding($e)");
            if ($DEBUG){
                copy $sfile, "$sfile.$seq";
                copy $pfile, "$pfile.$seq";
            }
            
            # this time print line by line.
            # works even for ISO-2022 but not ISO-2022-KR
            open $fh, ">:encoding($e)", $pfile or die "$sfile : $!";
            $fh->autoflush(1);
            for my $l (@uline) {
                print $fh $l;
            }
            close $fh;
            $seq++;
            is(compare_text($sfile, $pfile), 0 => ">:encoding($e) by lines");
            if ($DEBUG){
                copy $sfile, "$sfile.$seq";
                copy $pfile, "$pfile.$seq";
            }
            my $dtext;
            open $fh, "<:encoding($e)", $pfile or die "$pfile : $!";
            $fh->autoflush(0);
            $dtext = join('' => <$fh>);
            close $fh;
            $seq++;
            ok($utext eq $dtext, "<:encoding($e)");
            if ($DEBUG){
                dump2file("$sfile.$seq", $utext);
                dump2file("$pfile.$seq", $dtext);
            }
            if (perlio_ok($e) or $DEBUG){
                $dtext = '';
                open $fh, "<:encoding($e)", $pfile or die "$pfile : $!";
                while(defined(my $l = <$fh>)) {
                    $dtext .= $l;
                }
                close $fh;
            }
            $seq++;
            ok($utext eq $dtext,  "<:encoding($e) by lines");
            if ($DEBUG){
                dump2file("$sfile.$seq", $utext);
                dump2file("$pfile.$seq", $dtext);
            }
        }
     if ( ! $DEBUG ) {
            1 while unlink ($sfile);
            1 while unlink ($pfile);
        }
    }
}

# BOM Test

SKIP:{
    my $pev = PerlIO::encoding->VERSION;
    skip "PerlIO::encoding->VERSION = $pev <= 0.07 ", 6
        unless ($pev >= 0.07 or $DEBUG);

    my $file = File::Spec->catfile($dir,"jisx0208.utf");
    open my $fh, "<:utf8", $file or die "$file : $!";
    my $str = join('' => <$fh>);
    close $fh;
    my %bom = (
               'UTF-16BE' => pack('n', 0xFeFF),
               'UTF-16LE' => pack('v', 0xFeFF),
               'UTF-32BE' => pack('N', 0xFeFF),
               'UTF-32LE' => pack('V', 0xFeFF),
              );
    # reading
    for my $utf (sort keys %bom){
        my $bomed = $bom{$utf} . encode($utf, $str);
        my $sfile = File::Spec->catfile($dir,".${utf}_${seq}_$$");
        dump2file($sfile, $bomed);
        my $utf_nobom = $utf; $utf_nobom =~ s/(LE|BE)$//o;
        # reading
        open $fh, "<:encoding($utf_nobom)", $sfile or die "$sfile : $!";
        my $cmp = join '' => <$fh>;
        close $fh;
        is($str, $cmp, "<:encoding($utf_nobom) eq $utf");
        unlink $sfile;  $seq++;
    }
    # writing
    for my $utf_nobom (qw/UTF-16 UTF-32/){
        my $utf = $utf_nobom . 'BE';
        my $sfile = File::Spec->catfile($dir,".${utf_nobom}_${seq}_$$");
        my $bomed = $bom{$utf} . encode($utf, $str);
        open  $fh, ">:encoding($utf_nobom)", $sfile or die "$sfile : $!";
        print $fh $str;
        close $fh;
        open my $fh, "<:bytes", $sfile or die "$sfile : $!";
        read $fh, my $cmp, -s $sfile;
        close $fh;
        use bytes ();
        ok($bomed eq $cmp, ">:encoding($utf_nobom) eq $utf");
        unlink $sfile; $seq++;
    }
}
sub dump2file{
    no warnings;
    open my $fh, ">", $_[0] or die "$_[0]: $!";
    binmode $fh;
    print $fh $_[1];
    close $fh;
}