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|
#!./perl
BEGIN {
chdir 't' if -d 't';
@INC = '../lib';
}
BEGIN { require "./test.pl"; }
plan(tests => 24);
my ($devnull, $no_devnull);
if (is_miniperl()) {
$no_devnull = "no dynamic loading on miniperl, File::Spec not built, so can't determine /dev/null";
} else {
require File::Spec;
$devnull = File::Spec->devnull;
}
open(TRY, '>Io_argv1.tmp') || (die "Can't open temp file: $!");
print TRY "a line\n";
close TRY or die "Could not close: $!";
$x = runperl(
prog => 'while (<>) { print $., $_; }',
args => [ 'Io_argv1.tmp', 'Io_argv1.tmp' ],
);
is($x, "1a line\n2a line\n", '<> from two files');
{
$x = runperl(
prog => 'while (<>) { print $_; }',
stdin => "foo\n",
args => [ 'Io_argv1.tmp', '-' ],
);
is($x, "a line\nfoo\n", ' from a file and STDIN');
$x = runperl(
prog => 'while (<>) { print $_; }',
stdin => "foo\n",
);
is($x, "foo\n", ' from just STDIN');
}
{
# 5.10 stopped autovivifying scalars in globs leading to a
# segfault when $ARGV is written to.
runperl( prog => 'eof()', stdin => "nothing\n" );
is( 0+$?, 0, q(eof() doesn't segfault) );
}
@ARGV = is_miniperl() ? ('Io_argv1.tmp', 'Io_argv1.tmp', 'Io_argv1.tmp')
: ('Io_argv1.tmp', 'Io_argv1.tmp', $devnull, 'Io_argv1.tmp');
while (<>) {
$y .= $. . $_;
if (eof()) {
is($., 3, '$. counts <>');
}
}
is($y, "1a line\n2a line\n3a line\n", '<> from @ARGV');
open(TRY, '>Io_argv1.tmp') or die "Can't open temp file: $!";
close TRY or die "Could not close: $!";
open(TRY, '>Io_argv2.tmp') or die "Can't open temp file: $!";
close TRY or die "Could not close: $!";
@ARGV = ('Io_argv1.tmp', 'Io_argv2.tmp');
$^I = '_bak'; # not .bak which confuses VMS
$/ = undef;
my $i = 7;
while (<>) {
s/^/ok $i\n/;
++$i;
print;
next_test();
}
open(TRY, '<Io_argv1.tmp') or die "Can't open temp file: $!";
print while <TRY>;
open(TRY, '<Io_argv2.tmp') or die "Can't open temp file: $!";
print while <TRY>;
close TRY or die "Could not close: $!";
undef $^I;
ok( eof TRY );
{
no warnings 'once';
ok( eof NEVEROPENED, 'eof() true on unopened filehandle' );
}
open STDIN, 'Io_argv1.tmp' or die $!;
@ARGV = ();
ok( !eof(), 'STDIN has something' );
is( <>, "ok 7\n" );
SKIP: {
skip_if_miniperl($no_devnull, 4);
open STDIN, $devnull or die $!;
@ARGV = ();
ok( eof(), 'eof() true with empty @ARGV' );
@ARGV = ('Io_argv1.tmp');
ok( !eof() );
@ARGV = ($devnull, $devnull);
ok( !eof() );
close ARGV or die $!;
ok( eof(), 'eof() true after closing ARGV' );
}
SKIP: {
local $/;
open my $fh, 'Io_argv1.tmp' or die "Could not open Io_argv1.tmp: $!";
<$fh>; # set $. = 1
is( <$fh>, undef );
skip_if_miniperl($no_devnull, 5);
open $fh, $devnull or die;
ok( defined(<$fh>) );
is( <$fh>, undef );
is( <$fh>, undef );
open $fh, $devnull or die; # restart cycle again
ok( defined(<$fh>) );
is( <$fh>, undef );
close $fh or die "Could not close: $!";
}
# This used to dump core
fresh_perl_is( <<'**PROG**', "foobar", {}, "ARGV aliasing and eof()" );
open OUT, ">Io_argv3.tmp" or die "Can't open temp file: $!";
print OUT "foo";
close OUT;
open IN, "Io_argv3.tmp" or die "Can't open temp file: $!";
*ARGV = *IN;
while (<>) {
print;
print "bar" if eof();
}
close IN;
unlink "Io_argv3.tmp";
**PROG**
# This used to fail an assertion.
# The tricks with *x and $x are to make PL_argvgv point to a freed SV when
# the readline op does SvREFCNT_inc on it. undef *x clears the scalar slot
# ++$x vivifies it, reusing the just-deleted GV that PL_argvgv still points
# to. The BEGIN block ensures it is freed late enough that nothing else
# has reused it yet.
is runperl(prog => 'undef *x; delete $::{ARGV}; $x++;'
.'eval q-BEGIN{undef *x} readline-; print qq-ok\n-'),
"ok\n", 'deleting $::{ARGV}';
END {
unlink_all 'Io_argv1.tmp', 'Io_argv1.tmp_bak',
'Io_argv2.tmp', 'Io_argv2.tmp_bak', 'Io_argv3.tmp';
}
|
