1#!./perl 2 3use strict; 4use warnings; 5 6BEGIN { 7 chdir 't' if -d 't'; 8 @INC = '../lib'; 9 unless (find PerlIO::Layer 'perlio') { 10 print "1..0 # Skip: not perlio\n"; 11 exit 0; 12 } 13} 14 15my $tmp = "via$$"; 16 17use Test::More tests => 18; 18 19my $fh; 20my $a = join("", map { chr } 0..255) x 10; 21my $b; 22 23BEGIN { use_ok('PerlIO::via::QuotedPrint'); } 24 25ok( !open($fh,"<via(PerlIO::via::QuotedPrint)", $tmp), 'open QuotedPrint for input fails'); 26ok( open($fh,">via(PerlIO::via::QuotedPrint)", $tmp), 'open QuotedPrint for output'); 27ok( (print $fh $a), "print to output file"); 28ok( close($fh), 'close output file'); 29 30ok( open($fh,"<via(PerlIO::via::QuotedPrint)", $tmp), 'open QuotedPrint for input'); 31{ local $/; $b = <$fh> } 32ok( close($fh), "close input file"); 33 34is($a, $b, 'compare original data with filtered version'); 35 36 37{ 38 my $warnings = ''; 39 local $SIG{__WARN__} = sub { $warnings = join '', @_ }; 40 41 use warnings 'layer'; 42 43 # Find fd number we should be using 44 my $fd = open($fh,">$tmp") && fileno($fh); 45 print $fh "Hello\n"; 46 close($fh); 47 48 ok( ! open($fh,">via(Unknown::Module)", $tmp), 'open via Unknown::Module will fail'); 49 like( $warnings, qr/^Cannot find package 'Unknown::Module'/, 'warn about unknown package' ); 50 51 # Now open normally again to see if we get right fileno 52 my $fd2 = open($fh,"<$tmp") && fileno($fh); 53 is($fd2,$fd,"Wrong fd number after failed open"); 54 55 my $data = <$fh>; 56 57 is($data,"Hello\n","File clobbered by failed open"); 58 59 close($fh); 60 61{ 62package Incomplete::Module; 63} 64 65 $warnings = ''; 66 no warnings 'layer'; 67 ok( ! open($fh,">via(Incomplete::Module)", $tmp), 'open via Incomplete::Module will fail'); 68 is( $warnings, "", "don't warn about unknown package" ); 69 70 $warnings = ''; 71 no warnings 'layer'; 72 ok( ! open($fh,">via(Unknown::Module)", $tmp), 'open via Unknown::Module will fail'); 73 is( $warnings, "", "don't warn about unknown package" ); 74} 75 76my $obj = ''; 77sub Foo::PUSHED { $obj = shift; -1; } 78sub PerlIO::via::Bar::PUSHED { $obj = shift; -1; } 79open $fh, '<:via(Foo)', "foo"; 80is( $obj, 'Foo', 'search for package Foo' ); 81open $fh, '<:via(Bar)', "bar"; 82is( $obj, 'PerlIO::via::Bar', 'search for package PerlIO::via::Bar' ); 83 84END { 85 1 while unlink $tmp; 86} 87 88