#!./perl
# There are few filetest operators that are portable enough to test.
# See pod/perlport.pod for details.
BEGIN {
chdir 't' if -d 't';
@INC = '../lib';
require './test.pl';
}
use Config;
plan(tests => 34 + 27*14);
ok( -d 'op' );
ok( -f 'TEST' );
ok( !-f 'op' );
ok( !-d 'TEST' );
ok( -r 'TEST' );
# Make a read only file
my $ro_file = tempfile();
{
open my $fh, '>', $ro_file or die "open $fh: $!";
close $fh or die "close $fh: $!";
}
chmod 0555, $ro_file or die "chmod 0555, '$ro_file' failed: $!";
$oldeuid = $>; # root can read and write anything
eval '$> = 1'; # so switch uid (may not be implemented)
print "# oldeuid = $oldeuid, euid = $>\n";
SKIP: {
if (!$Config{d_seteuid}) {
skip('no seteuid');
}
else {
ok( !-w $ro_file );
}
}
# Scripts are not -x everywhere so cannot test that.
eval '$> = $oldeuid'; # switch uid back (may not be implemented)
# this would fail for the euid 1
# (unless we have unpacked the source code as uid 1...)
ok( -r 'op' );
# this would fail for the euid 1
# (unless we have unpacked the source code as uid 1...)
SKIP: {
if ($Config{d_seteuid}) {
ok( -w 'op' );
} else {
skip('no seteuid');
}
}
ok( -x 'op' ); # Hohum. Are directories -x everywhere?
is( "@{[grep -r, qw(foo io noo op zoo)]}", "io op" );
# Test stackability of filetest operators
ok( defined( -f -d 'TEST' ) && ! -f -d _ );
ok( !defined( -e 'zoo' ) );
ok( !defined( -e -d 'zoo' ) );
ok( !defined( -f -e 'zoo' ) );
ok( -f -e 'TEST' );
ok( -e -f 'TEST' );
ok( defined(-d -e 'TEST') );
ok( defined(-e -d 'TEST') );
ok( ! -f -d 'op' );
ok( -x -d -x 'op' );
ok( (-s -f 'TEST' > 1), "-s returns real size" );
ok( -f -s 'TEST' == 1 );
# now with an empty file
my $tempfile = tempfile();
open my $fh, ">", $tempfile;
close $fh;
ok( -f $tempfile );
is( -s $tempfile, 0 );
is( -f -s $tempfile, 0 );
is( -s -f $tempfile, 0 );
unlink_all $tempfile;
# stacked -l
eval { -l -e "TEST" };
like $@, qr/^The stat preceding -l _ wasn't an lstat at /,
'stacked -l non-lstat error with warnings off';
{
local $^W = 1;
eval { -l -e "TEST" };
like $@, qr/^The stat preceding -l _ wasn't an lstat at /,
'stacked -l non-lstat error with warnings on';
}
# Make sure -l is using the previous stat buffer, and not using the previ-
# ous op’s return value as a file name.
SKIP: {
use Perl::OSType 'os_type';
if (os_type ne 'Unix') { skip "Not Unix", 2 }
if (-l "TEST") { skip "TEST is a symlink", 2 }
chomp(my $ln = `which ln`);
if ( ! -e $ln ) { skip "No ln" , 2 }
lstat "TEST";
`ln -s TEST 1`;
ok ! -l -e _, 'stacked -l uses previous stat, not previous retval';
unlink 1;
# Since we already have our skip block set up, we might as well put this
# test here, too:
# -l always treats a non-bareword argument as a file name
system qw "ln -s TEST", \*foo;
local $^W = 1;
ok -l \*foo, '-l \*foo is a file name';
unlink \*foo;
}
# test that _ is a bareword after filetest operators
-f 'TEST';
ok( -f _ );
sub _ { "this is not a file name" }
ok( -f _ );
my $over;
{
package OverFtest;
use overload
fallback => 1,
-X => sub {
$over = [qq($_[0]), $_[1]];
"-$_[1]";
};
}
{
package OverString;
# No fallback. -X should fall back to string overload even without
# it.
use overload q/""/ => sub { $over = 1; "TEST" };
}
{
package OverBoth;
use overload
q/""/ => sub { "TEST" },
-X => sub { "-$_[1]" };
}
{
package OverNeither;
# Need fallback. Previous versions of perl required 'fallback' to do
# -X operations on an object with no "" overload.
use overload
'+' => sub { 1 },
fallback => 1;
}
my $ft = bless [], "OverFtest";
my $ftstr = qq($ft);
my $str = bless [], "OverString";
my $both = bless [], "OverBoth";
my $neither = bless [], "OverNeither";
my $nstr = qq($neither);
open my $gv, "<", "TEST";
bless $gv, "OverString";
open my $io, "<", "TEST";
$io = *{$io}{IO};
bless $io, "OverString";
my $fcntl_not_available;
eval { require Fcntl } or $fcntl_not_available = 1;
for my $op (split //, "rwxoRWXOezsfdlpSbctugkTMBAC") {
$over = [];
ok( my $rv = eval "-$op \$ft", "overloaded -$op succeeds" )
or diag( $@ );
is( $over->[0], $ftstr, "correct object for overloaded -$op" );
is( $over->[1], $op, "correct op for overloaded -$op" );
is( $rv, "-$op", "correct return value for overloaded -$op");
my ($exp, $is) = (1, "is");
if (
!$fcntl_not_available and (
$op eq "u" and not eval { Fcntl::S_ISUID() } or
$op eq "g" and not eval { Fcntl::S_ISGID() } or
$op eq "k" and not eval { Fcntl::S_ISVTX() }
)
) {
($exp, $is) = (0, "not");
}
$over = 0;
$rv = eval "-$op \$str";
ok( !$@, "-$op succeeds with string overloading" )
or diag( $@ );
is( $rv, eval "-$op 'TEST'", "correct -$op on string overload" );
is( $over, $exp, "string overload $is called for -$op" );
($exp, $is) = $op eq "l" ? (1, "is") : (0, "not");
$over = 0;
eval "-$op \$gv";
is( $over, $exp, "string overload $is called for -$op on GLOB" );
# IO refs always get string overload called. This might be a bug.
$op eq "t" || $op eq "T" || $op eq "B"
and ($exp, $is) = (1, "is");
$over = 0;
eval "-$op \$io";
is( $over, $exp, "string overload $is called for -$op on IO");
$rv = eval "-$op \$both";
is( $rv, "-$op", "correct -$op on string/-X overload" );
$rv = eval "-$op \$neither";
ok( !$@, "-$op succeeds with random overloading" )
or diag( $@ );
is( $rv, eval "-$op \$nstr", "correct -$op with random overloading" );
is( eval "-r -$op \$ft", "-r", "stacked overloaded -$op" );
is( eval "-$op -r \$ft", "-$op", "overloaded stacked -$op" );
}
# -l stack corruption: this bug occurred from 5.8 to 5.14
{
push my @foo, "bar", -l baz;
is $foo[0], "bar", '-l bareword does not corrupt the stack';
}
# File test ops should not call get-magic on the topmost SV on the stack if
# it belongs to another op.
{
my $w;
sub oon::TIESCALAR{bless[],'oon'}
sub oon::FETCH{$w++}
tie my $t, 'oon';
push my @a, $t, -t;
is $w, 1, 'file test does not call FETCH on stack item not its own';
}