rand_basic.phpt 1.6 KB

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  1. --TEST--
  2. Test rand() - basic function test rand()
  3. --FILE--
  4. <?php
  5. $default_max = getrandmax();
  6. echo "\nrand() tests with default min and max value (i.e 0 thru ", $default_max, ")\n";
  7. for ($i = 0; $i < 100; $i++) {
  8. $res = rand();
  9. // By default RAND_MAX is 32768 although no constant is defined for it for user space apps
  10. if ($res < 0 || $res > $default_max) {
  11. break;
  12. }
  13. }
  14. if ($i != 100) {
  15. echo "FAILED: res = ", $res, " min = 0 max = ", $default_max, "\n";
  16. } else {
  17. echo "PASSED: range min = 0 max = ", $default_max, "\n";
  18. }
  19. echo "\nrand() tests with defined min and max value\n";
  20. $min = array(10,
  21. 100,
  22. 10.5e3,
  23. 0x10,
  24. 0400);
  25. $max = array(100,
  26. 1000,
  27. 10.5e5,
  28. 0x10000,
  29. 0700);
  30. for ($x = 0; $x < count($min); $x++) {
  31. for ($i = 0; $i < 100; $i++) {
  32. $res = rand($min[$x], $max[$x]);
  33. if (!is_int($res) || $res < intval($min[$x]) || $res > intval($max[$x])) {
  34. echo "FAILED: res = ", $res, " min = ", intval($min[$x]), " max = ", intval($max[$x]), "\n";
  35. break;
  36. }
  37. }
  38. if ($i == 100) {
  39. echo "PASSED: range min = ", intval($min[$x]), " max = ", intval($max[$x]), "\n";
  40. }
  41. }
  42. ?>
  43. --EXPECTF--
  44. rand() tests with default min and max value (i.e 0 thru %i)
  45. PASSED: range min = 0 max = %i
  46. rand() tests with defined min and max value
  47. PASSED: range min = 10 max = 100
  48. PASSED: range min = 100 max = 1000
  49. PASSED: range min = 10500 max = 1050000
  50. PASSED: range min = 16 max = 65536
  51. PASSED: range min = 256 max = 448