Update to Scalar-List-Utils 1.08

[p5sagit/p5-mst-13.2.git] / ext / List / Util / t / reduce.t

#!./perl

BEGIN {
    unless (-d 'blib') {
	chdir 't' if -d 't';
	@INC = '../lib';
	require Config; import Config;
	keys %Config; # Silence warning
	if ($Config{extensions} !~ /\bList\/Util\b/) {
	    print "1..0 # Skip: List::Util was not built\n";
	    exit 0;
	}
    }
}


use List::Util qw(reduce min);

print "1..9\n";

print "not " if defined reduce {};
print "ok 1\n";

print "not " unless 9 == reduce { $a / $b } 756,3,7,4;
print "ok 2\n";

print "not " unless 9 == reduce { $a / $b } 9;
print "ok 3\n";

@a = map { rand } 0 .. 20;
print "not " unless min(@a) == reduce { $a < $b ? $a : $b } @a;
print "ok 4\n";

@a = map { pack("C", int(rand(256))) } 0 .. 20;
print "not " unless join("",@a) eq reduce { $a . $b } @a;
print "ok 5\n";

sub add {
  my($aa, $bb) = @_;
  return $aa + $bb;
}

my $sum = reduce { my $t="$a $b\n"; 0+add($a, $b) } 3, 2, 1;
print "not " unless $sum == 6;
print "ok 6\n";

# Check that eval{} inside the block works correctly
print "not " unless 10 == reduce { eval { die }; $a + $b } 0,1,2,3,4;
print "ok 7\n";

print "not " if defined eval { reduce { die if $b > 2; $a + $b } 0,1,2,3,4 };
print "ok 8\n";

($x) = foobar();
print "${x}ok 9\n";

sub foobar { reduce { (defined(wantarray) && !wantarray) ? '' : 'not ' } 0,1,2,3 }