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|
#!./perl
BEGIN {
require Config;
if (($Config::Config{'extensions'} !~ m!\bPerlIO/via\b!) ){
print "1..0 # Skip -- Perl configured without PerlIO::via module\n";
exit 0;
}
}
use strict;
use warnings;
my $tmp = "via$$";
use Test::More tests => 32;
my $fh;
my $a = join("", map { chr } 0..255) x 10;
my $b;
BEGIN { use_ok('PerlIO::via::QuotedPrint'); }
ok( !open($fh,"<via(PerlIO::via::QuotedPrint)", $tmp), 'open QuotedPrint for input fails');
ok( open($fh,">via(PerlIO::via::QuotedPrint)", $tmp), 'open QuotedPrint for output');
ok( (print $fh $a), "print to output file");
ok( close($fh), 'close output file');
ok( open($fh,"<via(PerlIO::via::QuotedPrint)", $tmp), 'open QuotedPrint for input');
{ local $/; $b = <$fh> }
ok( close($fh), "close input file");
is($a, $b, 'compare original data with filtered version');
{
my $warnings = '';
local $SIG{__WARN__} = sub { $warnings = join '', @_ };
use warnings 'layer';
# Find fd number we should be using
my $fd = open($fh,'>',$tmp) && fileno($fh);
print $fh "Hello\n";
close($fh);
ok( ! open($fh,">via(Unknown::Module)", $tmp), 'open via Unknown::Module will fail');
like( $warnings, qr/^Cannot find package 'Unknown::Module'/, 'warn about unknown package' );
# Now open normally again to see if we get right fileno
my $fd2 = open($fh,'<',$tmp) && fileno($fh);
is($fd2,$fd,"Wrong fd number after failed open");
my $data = <$fh>;
is($data,"Hello\n","File clobbered by failed open");
close($fh);
{
package Incomplete::Module;
}
$warnings = '';
no warnings 'layer';
ok( ! open($fh,">via(Incomplete::Module)", $tmp), 'open via Incomplete::Module will fail');
is( $warnings, "", "don't warn about unknown package" );
$warnings = '';
no warnings 'layer';
ok( ! open($fh,">via(Unknown::Module)", $tmp), 'open via Unknown::Module will fail');
is( $warnings, "", "don't warn about unknown package" );
}
my $obj = '';
sub Foo::PUSHED { $obj = shift; -1; }
sub PerlIO::via::Bar::PUSHED { $obj = shift; -1; }
open $fh, '<:via(Foo)', "foo";
is( $obj, 'Foo', 'search for package Foo' );
open $fh, '<:via(Bar)', "bar";
is( $obj, 'PerlIO::via::Bar', 'search for package PerlIO::via::Bar' );
{
# [perl #131221]
ok(open(my $fh1, ">", $tmp), "open $tmp");
ok(binmode($fh1, ":via(XXX)"), "binmode :via(XXX) onto it");
ok(open(my $fh2, ">&", $fh1), "dup it");
close $fh1;
close $fh2;
# make sure the old workaround still works
ok(open($fh1, ">", $tmp), "open $tmp");
ok(binmode($fh1, ":via(YYY)"), "binmode :via(YYY) onto it");
ok(open($fh2, ">&", $fh1), "dup it");
print $fh2 "XZXZ";
close $fh1;
close $fh2;
ok(open($fh1, "<", $tmp), "open $tmp for check");
{ local $/; $b = <$fh1> }
close $fh1;
is($b, "XZXZ", "check result is from non-filtering class");
package PerlIO::via::XXX;
sub PUSHED {
my $class = shift;
bless {}, $class;
}
sub WRITE {
my ($self, $buffer, $handle) = @_;
print $handle $buffer;
return length($buffer);
}
package PerlIO::via::YYY;
sub PUSHED {
my $class = shift;
bless {}, $class;
}
sub WRITE {
my ($self, $buffer, $handle) = @_;
$buffer =~ tr/X/Y/;
print $handle $buffer;
return length($buffer);
}
sub GETARG {
"XXX";
}
}
{
my $read_buf = "x" x 10;
my $read_res;
open my $fh, "<:via(BadRead)", $tmp
or die "Cannot open via BadRead";
my $buf;
my $warn = '';
local $SIG{__WARN__} = sub { $warn .= "@_\n" };
# this would segfault
$warn = '';
$read_res = -1;
ok(!eval { read($fh, $buf, 10) }, "READ returns -1");
like($warn, qr/Invalid return from PerlIO::via::BadRead::READ = -1, expected undef or 0 to 10/,
"check warning");
$warn = '';
$read_res = 11;
ok(!eval { read($fh, $buf, 10) }, "READ returns 11 when 10 requested");
like($warn, qr/Invalid return from PerlIO::via::BadRead::READ = 11, expected undef or 0 to 10/,
"check warning");
$warn = '';
$read_res = 10;
$read_buf = "x" x 9;
ok(!eval { read($fh, $buf, 10) }, "READ returns 10 when 9 in buffer");
like($warn, qr/Invalid return from PerlIO::via::BadRead::READ = 10, beyond end of the returned buffer at 9/,
"check warning");
package PerlIO::via::BadRead;
sub PUSHED {
bless {}, shift;
}
sub READ {
$_[1] = $read_buf;
return $read_res;
}
}
END {
1 while unlink $tmp;
}
|
