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|
#!./perl
BEGIN {
chdir 't' if -d 't';
@INC = '../lib';
require Config; import Config;
}
use Test::More tests => 23;
# open::import expects 'open' as its first argument, but it clashes with open()
sub import {
open::import( 'open', @_ );
}
# can't use require_ok() here, with a name like 'open'
ok( require 'open.pm', 'requiring open' );
# this should fail
eval { import() };
like( $@, qr/needs explicit list of PerlIO layers/,
'import should fail without args' );
# prevent it from loading I18N::Langinfo, so we can test encoding failures
my $warn;
local $SIG{__WARN__} = sub {
$warn .= shift;
};
# and it shouldn't be able to find this layer
$warn = '';
eval q{ no warnings 'layer'; use open IN => ':macguffin' ; };
is( $warn, '',
'should not warn about unknown layer with bad layer provided' );
$warn = '';
eval q{ use warnings 'layer'; use open IN => ':macguffin' ; };
like( $warn, qr/Unknown PerlIO layer/,
'should warn about unknown layer with bad layer provided' );
# open :locale logic changed since open 1.04, new logic
# difficult to test portably.
# see if it sets the magic variables appropriately
import( 'IN', ':crlf' );
is( $^H{'open_IN'}, 'crlf', 'should have set crlf layer' );
# it should reset them appropriately, too
import( 'IN', ':raw' );
is( $^H{'open_IN'}, 'raw', 'should have reset to raw layer' );
# it dies if you don't set IN, OUT, or IO
eval { import( 'sideways', ':raw' ) };
like( $@, qr/Unknown PerlIO layer class/, 'should croak with unknown class' );
# but it handles them all so well together
import( 'IO', ':raw :crlf' );
is( ${^OPEN}, ":raw :crlf\0:raw :crlf",
'should set multi types, multi layer' );
is( $^H{'open_IO'}, 'crlf', 'should record last layer set in %^H' );
SKIP: {
skip("no perlio, no :utf8", 12) unless (find PerlIO::Layer 'perlio');
eval <<EOE;
use open ':utf8';
open(O, ">utf8");
print O chr(0x100);
close O;
open(I, "<utf8");
is(ord(<I>), 0x100, ":utf8 single wide character round-trip");
close I;
EOE
open F, ">a";
@a = map { chr(1 << ($_ << 2)) } 0..5; # 0x1, 0x10, .., 0x100000
unshift @a, chr(0); # ... and a null byte in front just for fun
print F @a;
close F;
sub systell {
use Fcntl 'SEEK_CUR';
sysseek($_[0], 0, SEEK_CUR);
}
require bytes; # not use
my $ok;
open F, "<:utf8", "a";
$ok = $a = 0;
for (@a) {
unless (
($c = sysread(F, $b, 1)) == 1 &&
length($b) == 1 &&
ord($b) == ord($_) &&
systell(F) == ($a += bytes::length($b))
) {
print '# ord($_) == ', ord($_), "\n";
print '# ord($b) == ', ord($b), "\n";
print '# length($b) == ', length($b), "\n";
print '# bytes::length($b) == ', bytes::length($b), "\n";
print '# systell(F) == ', systell(F), "\n";
print '# $a == ', $a, "\n";
print '# $c == ', $c, "\n";
last;
}
$ok++;
}
close F;
ok($ok == @a,
"on :utf8 streams sysread() should work on characters, not bytes");
sub diagnostics {
print '# ord($_) == ', ord($_), "\n";
print '# bytes::length($_) == ', bytes::length($_), "\n";
print '# systell(G) == ', systell(G), "\n";
print '# $a == ', $a, "\n";
print '# $c == ', $c, "\n";
}
my %actions = (
syswrite => sub { syswrite G, shift; },
'syswrite len' => sub { syswrite G, shift, 1; },
'syswrite len pad' => sub {
my $temp = shift() . "\243";
syswrite G, $temp, 1; },
'syswrite off' => sub {
my $temp = "\351" . shift();
syswrite G, $temp, 1, 1; },
'syswrite off pad' => sub {
my $temp = "\351" . shift() . "\243";
syswrite G, $temp, 1, 1; },
);
foreach my $key (sort keys %actions) {
# syswrite() on should work on characters, not bytes
open G, ">:utf8", "b";
print "# $key\n";
$ok = $a = 0;
for (@a) {
unless (
($c = $actions{$key}($_)) == 1 &&
systell(G) == ($a += bytes::length($_))
) {
diagnostics();
last;
}
$ok++;
}
close G;
ok($ok == @a,
"on :utf8 streams syswrite() should work on characters, not bytes");
open G, "<:utf8", "b";
$ok = $a = 0;
for (@a) {
unless (
($c = sysread(G, $b, 1)) == 1 &&
length($b) == 1 &&
ord($b) == ord($_) &&
systell(G) == ($a += bytes::length($_))
) {
print '# ord($_) == ', ord($_), "\n";
print '# ord($b) == ', ord($b), "\n";
print '# length($b) == ', length($b), "\n";
print '# bytes::length($b) == ', bytes::length($b), "\n";
print '# systell(G) == ', systell(G), "\n";
print '# $a == ', $a, "\n";
print '# $c == ', $c, "\n";
last;
}
$ok++;
}
close G;
ok($ok == @a,
"checking syswrite() output on :utf8 streams by reading it back in");
}
}
SKIP: {
skip("no perlio", 2) unless (find PerlIO::Layer 'perlio');
eval q[use Encode::Alias;use open ":std", ":locale"];
is($@, '', 'can use :std and :locale');
use open IN => ':non-existent';
eval {
require Symbol; # Anything that exists but we havn't loaded
};
like($@, qr/Can't locate Symbol|Recursive call/i,
"test for an endless loop in PerlIO_find_layer");
}
END {
1 while unlink "utf8";
1 while unlink "a";
1 while unlink "b";
}
# the test cases beyond __DATA__ need to be executed separately
__DATA__
$ENV{LC_ALL} = 'nonexistent.euc';
eval { open::_get_locale_encoding() };
like( $@, qr/too ambiguous/, 'should die with ambiguous locale encoding' );
%%%
# the special :locale layer
$ENV{LC_ALL} = $ENV{LANG} = 'ru_RU.KOI8-R';
# the :locale will probe the locale environment variables like LANG
use open OUT => ':locale';
open(O, ">koi8");
print O chr(0x430); # Unicode CYRILLIC SMALL LETTER A = KOI8-R 0xc1
close O;
open(I, "<koi8");
printf "%#x\n", ord(<I>), "\n"; # this should print 0xc1
close I;
%%%
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