my $number = 0;
sub ok {
	my ($condition, $name) = @_;

	my $message = $condition ? "ok " : "not ok ";
	$message .= ++$number;
	$message .= " # $name" if defined $name;
	print $message, "\n";
	return $condition;
}

sub is {
	my ($got, $expected, $name) = @_;

	for ($got, $expected) {
		$_ = 'undef' unless defined $_;
	}

	unless (ok($got eq $expected, $name)) {
		warn "Got: '$got'\nExpected: '$expected'\n" . join(' ', caller) . "\n";
	}
}

sub skip {
	my ($reason, $num) = @_;
	$reason ||= '';
	$number ||= 1;

	for (1 .. $num) {
		$number++;
		print "ok $number # skip $reason\n";
	}
}

1;