#!./perl
BEGIN {
chdir 't' if -d 't';
require './test.pl';
}
use strict;
my $prefix = 'tmp'.$$;
sub skip_files{
my($skip,$to,$next) = @_;
my($last,$check);
my $cmp = $prefix . $to;
for( 1..$skip ){
$check = tempfile();
$last = $_;
if( $check eq $cmp && $_ != $skip ){
# let the next test pass
last;
}
}
my $common_mess = "skip $skip filenames to $to so that the next one will end with $next";
if( $last == $skip ){
if( $check eq $cmp ){
pass( $common_mess );
}else{
my($alpha) = $check =~ /\Atmp\d+([A-Z][A-Z]?)\Z/;
fail( $common_mess, "only skipped to $alpha" )
}
}else{
fail( $common_mess, "only skipped $last files" );
}
}
note("skipping the first filename because it is taken for use by _fresh_perl()");
is( tempfile(), "${prefix}B");
is( tempfile(), "${prefix}C");
skip_files(22,'Y','Z');
is( tempfile(), "${prefix}Z", 'Last single letter filename');
is( tempfile(), "${prefix}AA", 'First double letter filename');
skip_files(24,'AY','AZ');
is( tempfile(), "${prefix}AZ");
is( tempfile(), "${prefix}BA");
skip_files(26 * 24 + 24,'ZY','ZZ');
is( tempfile(), "${prefix}ZZ", 'Last available filename');
ok( !eval{tempfile()}, 'Should bail after Last available filename' );
my $err = "$@";
like( $err, qr{^Can't find temporary file name starting}, 'check error string' );
done_testing();