--TEST-- gmp_random_bits() basic tests --SKIPIF-- --FILE-- getMessage() . \PHP_EOL; } try { var_dump(gmp_random_bits(-1)); } catch (\ValueError $e) { echo $e->getMessage() . \PHP_EOL; } // If these error the test fails. gmp_random_bits(1); gmp_random_bits(1024); // 0.5 seconds to make sure the numbers stay in range $start = microtime(true); $limit = (2 ** 30) - 1; while (1) { for ($i = 0; $i < 5000; $i++) { $result = gmp_random_bits(30); if ($result < 0 || $result > $limit) { print "RANGE VIOLATION\n"; var_dump($result); break 2; } } if (microtime(true) - $start > 0.5) { break; } } echo "Done\n"; ?> --EXPECT-- gmp_random_bits(): Argument #1 ($bits) must be greater than or equal to 1 gmp_random_bits(): Argument #1 ($bits) must be greater than or equal to 1 Done