PHP DocTest::testObj Examples

Example #1

File: m.php Project: xdissent/php-doctest

 * It must also not be ridiculously large:
 *
 * <code>
 * php > var_dump(factorial(1e100));
 * PHP Fatal error:  Uncaught exception 'OverflowException' with message 
 *     '$n too large'
 * </code>
 */
function factorial($n)
{
    if (!($n >= 0)) {
        throw new InvalidArgumentException('$n must be >= 0');
    }
    if (floor($n) != $n) {
        throw new InvalidArgumentException('$n must be exact integer');
    }
    if ($n + 1 == $n) {
        throw new OverflowException('$n too large');
    }
    $result = 1;
    $factor = 2;
    while ($factor <= $n) {
        $result *= $factor;
        $factor += 1;
    }
    return $result;
}
if (!count(debug_backtrace())) {
    require dirname(__FILE__) . '/../src/DocTest/import.php';
    DocTest::testObj('factorial', null, true);
}