1#!./perl 2 3BEGIN { 4 chdir 't' if -d 't'; 5 @INC = '../lib'; 6 require Config; import Config; 7 if ($Config{'extensions'} !~ /\bIO\b/ && $^O ne 'VMS') { 8 print "1..0\n"; 9 exit 0; 10 } 11} 12 13use strict; 14use FileHandle; 15autoflush STDOUT 1; 16use Test::More; 17my $TB = Test::More->builder; 18 19my $mystdout = new_from_fd FileHandle 1,"w"; 20$| = 1; 21autoflush $mystdout; 22 23print $mystdout "ok ".fileno($mystdout), 24 " - ", "create new handle from file descriptor", "\n"; 25$TB->current_test($TB->current_test + 1); 26 27my $fh = (new FileHandle "./TEST", O_RDONLY 28 or new FileHandle "TEST", O_RDONLY); 29ok(defined($fh), "create new handle O_RDONLY"); 30 31my $buffer = <$fh>; 32is($buffer, "#!./perl\n", "Got expected first line via handle"); 33 34ungetc $fh ord 'A'; 35my $buf; 36CORE::read($fh, $buf,1); 37is($buf, 'A', "Got expected ordinal value via ungetc in handle's input stream"); 38close $fh; 39 40$fh = new FileHandle; 41ok(($fh->open("< TEST") && <$fh> eq $buffer), 42 "FileHandle open() method created handle, which got expected first line"); 43 44$fh->seek(0,0); 45ok((<$fh> eq $buffer), "Averted possible mixed CRLF/LF in t/TEST"); 46 47$fh->seek(0,2); 48my $line = <$fh>; 49ok(! (defined($line) || !$fh->eof), "FileHandle seek() and eof() methods"); 50 51ok(($fh->open("TEST","r") && !$fh->tell && $fh->close), 52 "FileHandle open(), tell() and close() methods"); 53 54autoflush STDOUT 0; 55ok(! $|, "handle not auto-flushing current output channel"); 56 57autoflush STDOUT 1; 58ok($|, "handle auto-flushing current output channel"); 59 60{ 61 my ($rd,$wr) = FileHandle::pipe; 62 my $non_forking = ( 63 $^O eq 'VMS' || $^O eq 'os2' || $^O eq 'amigaos' || 64 $^O eq 'MSWin32' || $Config{d_fork} ne 'define' 65 ); 66 my $content = "Writing to one end of a pipe, reading from the other\n"; 67 if ($non_forking) { 68 $wr->autoflush; 69 $wr->print($content); 70 is($rd->getline, $content, 71 "Read content from pipe on non-forking platform"); 72 } 73 else { 74 my $child; 75 if ($child = fork) { 76 # parent 77 $wr->close; 78 is($rd->getline, $content, 79 "Read content from pipe on forking platform"); 80 } 81 elsif (defined $child) { 82 # child 83 $rd->close; 84 $wr->print($content); 85 exit(0); 86 } 87 else { 88 die "fork failed: $!"; 89 } 90 } 91} 92 93ok(!FileHandle->new('', 'r'), "Can't open empty filename"); 94 95done_testing(); 96