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|
#!/usr/bin/perl
#
# Make sure it works to open the file in read-only mode
#
my $file = "tf$$.txt";
$: = Tie::File::_default_recsep();
print "1..13\n";
my $N = 1;
use Tie::File;
use Fcntl 'O_RDONLY';
print "ok $N\n"; $N++;
my @items = qw(Gold Frankincense Myrrh Ivory Apes Peacocks);
init_file(join $:, @items, '');
my $o = tie @a, 'Tie::File', $file, mode => O_RDONLY, autochomp => 0;
print $o ? "ok $N\n" : "not ok $N\n";
$N++;
$#a == $#items ? print "ok $N\n" : print "not ok $N\n";
$N++;
for my $i (0..$#items) {
("$items[$i]$:" eq $a[$i]) ? print "ok $N\n" : print "not ok $N\n";
$N++;
}
sub init_file {
my $data = shift;
open F, "> $file" or die $!;
binmode F;
print F $data;
close F;
}
undef $o; untie @a;
my $badrec = "Malformed";
# (10-13) When a record lacks the record seprator, we sneakily try
# to fix it. How does that work when the file is read-only?
if (setup_badly_terminated_file(4)) {
my $good = 1;
my $warn;
local $SIG{__WARN__} = sub { $good = 0; ctrlfix($warn = shift); };
local $^W = 1;
my $o = tie @a, 'Tie::File', $file, mode => O_RDONLY, autochomp => 0
or die "Couldn't tie $file: $!";
print $a[0] eq "Malformed$:" ? "ok $N\n" : "not ok $N\n"; $N++;
print $good ? "ok $N\n" : "not ok $N # $warn\n"; $good = 1; $N++;
print $a[0] eq "Malformed$:" ? "ok $N\n" : "not ok $N\n"; $N++;
print $good ? "ok $N\n" : "not ok $N # $warn\n"; $good = 1; $N++;
}
sub setup_badly_terminated_file {
my $NTESTS = shift;
open F, "> $file" or die "Couldn't open $file: $!";
binmode F;
print F $badrec;
close F;
unless (-s $file == length $badrec) {
for (1 .. $NTESTS) {
print "ok $N \# skipped - can't create improperly terminated file\n";
$N++;
}
return;
}
return 1;
}
sub ctrlfix {
for (@_) {
s/\n/\\n/g;
s/\r/\\r/g;
}
}
END {
undef $o;
untie @a;
1 while unlink $file;
}
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