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--TEST-- Test mt_rand() - basic function test mt_rand() --FILE-- <?php $default_max = mt_getrandmax(); echo "\nmt_rand() tests with default min and max value (i.e 0 thru ", $default_max, ")\n"; for ($i = 0; $i < 100; $i++) { $res = mt_rand(); // By default RAND_MAX is 32768 although no constant is defined for it for user space apps if (!is_int($res) || $res < 0 || $res > $default_max) { break; } } if ($i != 100) { echo "FAILED: res = ", $res, " min = 0 max = ", $default_max, "\n"; } else { echo "PASSED: range min = 0 max = ", $default_max, "\n"; } echo "\nmt_rand() tests with defined min and max value\n"; $min = array(10, 100, 10.5, 10.5e3, 0x10, 0400); $max = array(100, 1000, 19.5, 10.5e5, 0x10000, 0700); for ($x = 0; $x < count($min); $x++) { for ($i = 0; $i < 100; $i++) { $res = mt_rand($min[$x], $max[$x]); if (!is_int($res) || $res < intval($min[$x]) || $res > intval($max[$x])) { echo "FAILED: res = ", $res, " min = ", intval($min[$x]), " max = ", intval($max[$x]), "\n"; break; } } if ($i == 100) { echo "PASSED: range min = ", intval($min[$x]), " max = ", intval($max[$x]), "\n"; } } echo "\nNon-numeric cases\n"; $min = array(true, false, null, "10", "0x10", "10.5"); // Eexepcted numerical equivalent of above non-numerics $minval = array(1, 0, 0, 10, 0, 10); for ($x = 0; $x < count($min); $x++) { for ($i = 0; $i < 100; $i++) { $res = mt_rand($min[$x], 100); if (!is_int($res) || $res < intval($minval[$x]) || $res > 100) { echo "FAILED: res = ", $res, " min = ", intval($min[$x]), " max = ", intval($max[$x]), "\n"; break; } } if ($i == 100) { echo "PASSED range min = ", intval($min[$x]), " max = 100\n"; } } ?> --EXPECTF-- mt_rand() tests with default min and max value (i.e 0 thru 2147483647) PASSED: range min = 0 max = 2147483647 mt_rand() tests with defined min and max value PASSED: range min = 10 max = 100 PASSED: range min = 100 max = 1000 PASSED: range min = 10 max = 19 PASSED: range min = 10500 max = 1050000 PASSED: range min = 16 max = 65536 PASSED: range min = 256 max = 448 Non-numeric cases PASSED range min = 1 max = 100 PASSED range min = 0 max = 100 PASSED range min = 0 max = 100 PASSED range min = 10 max = 100 PASSED range min = 0 max = 100 PASSED range min = 10 max = 100