97 lines
2.5 KiB
Perl
97 lines
2.5 KiB
Perl
#!./perl
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BEGIN {
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chdir 't' if -d 't';
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@INC = '../lib';
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require Config; import Config;
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if ($Config{'extensions'} !~ /\bIO\b/ && $^O ne 'VMS') {
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print "1..0\n";
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exit 0;
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}
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}
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use strict;
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use FileHandle;
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autoflush STDOUT 1;
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use Test::More (tests => 12);
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my $TB = Test::More->builder;
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my $mystdout = new_from_fd FileHandle 1,"w";
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$| = 1;
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autoflush $mystdout;
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print $mystdout "ok ".fileno($mystdout),
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" - ", "create new handle from file descriptor", "\n";
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$TB->current_test($TB->current_test + 1);
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my $fh = (new FileHandle "./TEST", O_RDONLY
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or new FileHandle "TEST", O_RDONLY);
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ok(defined($fh), "create new handle O_RDONLY");
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my $buffer = <$fh>;
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is($buffer, "#!./perl\n", "Got expected first line via handle");
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ungetc $fh ord 'A';
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my $buf;
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CORE::read($fh, $buf,1);
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is($buf, 'A', "Got expected ordinal value via ungetc in handle's input stream");
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close $fh;
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$fh = new FileHandle;
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ok(($fh->open("< TEST") && <$fh> eq $buffer),
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"FileHandle open() method created handle, which got expected first line");
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$fh->seek(0,0);
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ok((<$fh> eq $buffer), "Averted possible mixed CRLF/LF in t/TEST");
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$fh->seek(0,2);
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my $line = <$fh>;
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ok(! (defined($line) || !$fh->eof), "FileHandle seek() and eof() methods");
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ok(($fh->open("TEST","r") && !$fh->tell && $fh->close),
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"FileHandle open(), tell() and close() methods");
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autoflush STDOUT 0;
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ok(! $|, "handle not auto-flushing current output channel");
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autoflush STDOUT 1;
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ok($|, "handle auto-flushing current output channel");
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SKIP: {
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skip "No fork or pipe on DOS", 1 if ($^O eq 'dos');
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my ($rd,$wr) = FileHandle::pipe;
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my $non_forking = (
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$^O eq 'VMS' || $^O eq 'os2' || $^O eq 'amigaos' ||
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$^O eq 'MSWin32' || $^O eq 'NetWare' || $Config{d_fork} ne 'define'
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);
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my $content = "Writing to one end of a pipe, reading from the other\n";
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if ($non_forking) {
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$wr->autoflush;
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$wr->print($content);
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is($rd->getline, $content,
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"Read content from pipe on non-forking platform");
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}
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else {
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my $child;
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if ($child = fork) {
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# parent
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$wr->close;
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is($rd->getline, $content,
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"Read content from pipe on forking platform");
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}
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elsif (defined $child) {
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# child
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$rd->close;
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$wr->print($content);
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exit(0);
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}
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else {
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die "fork failed: $!";
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}
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}
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} # END: SKIP for dos
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ok(!FileHandle->new('', 'r'), "Can't open empty filename");
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