Small optimisations, by Brandon Black

[p5sagit/p5-mst-13.2.git] / t / op / defins.t

#!./perl -w

#
# test auto defined() test insertion
#

BEGIN {
    chdir 't' if -d 't';
    @INC = qw(. ../lib);
    $SIG{__WARN__} = sub { $warns++; warn $_[0] };
}
require 'test.pl';
plan( tests => 19 );

$wanted_filename = $^O eq 'VMS' ? '0.' : '0';
$saved_filename = $^O eq 'MacOS' ? ':0' : './0';

cmp_ok($warns,'==',0,'no warns at start');

open(FILE,">$saved_filename");
ok(defined(FILE),'created work file');
print FILE "1\n";
print FILE "0";
close(FILE);

open(FILE,"<$saved_filename");
ok(defined(FILE),'opened work file');
my $seen = 0;
my $dummy;
while (my $name = <FILE>)
 {
  $seen++ if $name eq '0';
 }
cmp_ok($seen,'==',1,'seen in while()');

seek(FILE,0,0);
$seen = 0;
my $line = '';
do
 {
  $seen++ if $line eq '0';
 } while ($line = <FILE>);
cmp_ok($seen,'==',1,'seen in do/while');

seek(FILE,0,0);
$seen = 0;
while (($seen ? $dummy : $name) = <FILE> )
 {
  $seen++ if $name eq '0';
 }
cmp_ok($seen,'==',1,'seen in while() ternary');

seek(FILE,0,0);
$seen = 0;
my %where;
while ($where{$seen} = <FILE>)
 {
  $seen++ if $where{$seen} eq '0';
 }
cmp_ok($seen,'==',1,'seen in hash while()');
close FILE;

opendir(DIR,($^O eq 'MacOS' ? ':' : '.'));
ok(defined(DIR),'opened current directory');
$seen = 0;
while (my $name = readdir(DIR))
 {
  $seen++ if $name eq $wanted_filename;
 }
cmp_ok($seen,'==',1,'saw work file once');

rewinddir(DIR);
$seen = 0;
$dummy = '';
while (($seen ? $dummy : $name) = readdir(DIR))
 {
  $seen++ if $name eq $wanted_filename;
 }
cmp_ok($seen,'>',0,'saw file in while() ternary');

rewinddir(DIR);
$seen = 0;
while ($where{$seen} = readdir(DIR))
 {
  $seen++ if $where{$seen} eq $wanted_filename;
 }
cmp_ok($seen,'==',1,'saw file in hash while()');

$seen = 0;
while (my $name = glob('*'))
 {
  $seen++ if $name eq $wanted_filename;
 }
cmp_ok($seen,'==',1,'saw file in glob while()');

$seen = 0;
$dummy = '';
while (($seen ? $dummy : $name) = glob('*'))
 {
  $seen++ if $name eq $wanted_filename;
 }
cmp_ok($seen,'>',0,'saw file in glob hash while() ternary');

$seen = 0;
while ($where{$seen} = glob('*'))
 {
  $seen++ if $where{$seen} eq $wanted_filename;
 }
cmp_ok($seen,'==',1,'seen in glob hash while()');

unlink($saved_filename);
ok(!(-f $saved_filename),'work file unlinked');

my %hash = (0 => 1, 1 => 2);

$seen = 0;
while (my $name = each %hash)
 {
  $seen++ if $name eq '0';
 }
cmp_ok($seen,'==',1,'seen in each');

$seen = 0;
$dummy = '';
while (($seen ? $dummy : $name) = each %hash)
 {
  $seen++ if $name eq '0';
 }
cmp_ok($seen,'==',1,'seen in each ternary');

$seen = 0;
while ($where{$seen} = each %hash)
 {
  $seen++ if $where{$seen} eq '0';
 }
cmp_ok($seen,'==',1,'seen in each hash');

cmp_ok($warns,'==',0,'no warns at finish');