Upgrade to Cwd 2.16

[p5sagit/p5-mst-13.2.git] / ext / PerlIO / t / via.t

diff --git a/ext/PerlIO/t/via.t b/ext/PerlIO/t/via.t
index a2201e0..124efbd 100644 (file)
--- a/ext/PerlIO/t/via.t
+++ b/ext/PerlIO/t/via.t
@@ -1,5 +1,8 @@
 #!./perl
 
+use strict;
+use warnings;
+
 BEGIN {
     chdir 't' if -d 't';
     @INC = '../lib';
@@ -11,23 +14,74 @@ BEGIN {
 
 my $tmp = "via$$";
 
-print "1..3\n";
+use Test::More tests => 18;
+
+my $fh;
+my $a = join("", map { chr } 0..255) x 10;
+my $b;
 
-$a = join("", map { chr } 0..255) x 10;
+BEGIN { use_ok('PerlIO::via::QuotedPrint'); }
 
-use MIME::QuotedPrint;
-open(my $fh,">Via(MIME::QuotedPrint)", $tmp);
-print $fh $a;
-close($fh);
-print "ok 1\n";
+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');
 
-open(my $fh,"<Via(MIME::QuotedPrint)", $tmp);
+ok( open($fh,"<via(PerlIO::via::QuotedPrint)", $tmp), 'open QuotedPrint for input');
 { local $/; $b = <$fh> }
-close($fh);
-print "ok 2\n";
+ok( close($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");
 
-print "ok 3\n" if $a eq $b;
+    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' );
 
 END {
     1 while unlink $tmp;
 }
+