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|
#!/usr/bin/perl
#
# Check FETCHSIZE and SETSIZE functions
# PUSH POP SHIFT UNSHIFT
#
use POSIX 'SEEK_SET';
my $file = "tf$$.txt";
my ($o, $n);
print "1..16\n";
my $N = 1;
use Tie::File;
print "ok $N\n"; $N++;
# 2-3 FETCHSIZE 0-length file
open F, "> $file" or die $!;
binmode F;
close F;
$o = tie @a, 'Tie::File', $file;
print $o ? "ok $N\n" : "not ok $N\n";
$N++;
$: = $o->{recsep};
$n = @a;
print $n == 0 ? "ok $N\n" : "not ok $N # $n, s/b 0\n";
$N++;
# Reset everything
undef $o;
untie @a;
my $data = "rec0$:rec1$:rec2$:";
open F, "> $file" or die $!;
binmode F;
print F $data;
close F;
$o = tie @a, 'Tie::File', $file;
print $o ? "ok $N\n" : "not ok $N\n";
$N++;
# 4-5 FETCHSIZE positive-length file
$n = @a;
print $n == 3 ? "ok $N\n" : "not ok $N # $n, s/b 0\n";
$N++;
# STORESIZE
# (6-7) Make it longer:
populate();
$#a = 4;
check_contents("$data$:$:");
# (8-9) Make it longer again:
populate();
$#a = 6;
check_contents("$data$:$:$:$:");
# (10-11) Make it shorter:
populate();
$#a = 4;
check_contents("$data$:$:");
# (12-13) Make it shorter again:
populate();
$#a = 2;
check_contents($data);
# (14-15) Get rid of it completely:
populate();
$#a = -1;
check_contents('');
# (16) 20020324 I have an idea that shortening the array will not
# expunge a cached record at the end if one is present.
$o->defer;
$a[3] = "record";
my $r = $a[3];
$#a = -1;
$r = $a[3];
print (! defined $r ? "ok $N\n" : "not ok $N \# was <$r>; should be UNDEF\n");
# Turns out not to be the case---STORESIZE explicitly removes them later
# 20020326 Well, but happily, this test did fail today.
# In the past, there was a bug in STORESIZE that it didn't correctly
# remove deleted records from the cache. This wasn't detected
# because these tests were all done with an empty cache. populate()
# will ensure that the cache is fully populated.
sub populate {
my $z;
$z = $a[$_] for 0 .. $#a;
}
sub check_contents {
my $x = shift;
local *FH = $o->{fh};
seek FH, 0, SEEK_SET;
my $a;
{ local $/; $a = <FH> }
$a = "" unless defined $a;
if ($a eq $x) {
print "ok $N\n";
} else {
ctrlfix($a, $x);
print "not ok $N\n# expected <$x>, got <$a>\n";
}
$N++;
my $integrity = $o->_check_integrity($file, $ENV{INTEGRITY});
print $integrity ? "ok $N\n" : "not ok $N \# integrity\n";
$N++;
}
sub ctrlfix {
for (@_) {
s/\n/\\n/g;
s/\r/\\r/g;
}
}
END {
undef $o;
untie @a;
1 while unlink $file;
}
|
