third_party/WebKit/LayoutTests/fast/harness/should-be-now.html

   1 <!DOCTYPE html>
   2
   3 <script src="../../resources/js-test.js"></script>
   4 <script>
   5 description('Test shouldBeNow() in js-test.js');
   6
   7 shouldBeNow("Date.now()");
   8 shouldBeNow("new Date()");
   9
  10 debug("Testing type checking with a string. This should fail.");
  11 shouldBeNow("'Hello world!'");
  12
  13 function stubDateNow(stubValue, callback)
  14 {
  15     var realDateNow = Date.now;
  16     Date.now = function() { return stubValue; }
  17     try {
  18         callback();
  19     } finally {
  20         Date.now = realDateNow;
  21     }
  22 }
  23
  24 debug("Testing past dates. This should fail.");
  25 stubDateNow(60000, function() {
  26     shouldBeNow("50000");
  27 });
  28
  29 debug("Testing future dates. This should fail.");
  30 stubDateNow(60000, function() {
  31     shouldBeNow("70000");
  32 });
  33
  34 debug("Testing a slightly past date with the implicit delta. This should pass.");
  35 stubDateNow(60000, function() {
  36     shouldBeNow("59990");
  37 });
  38
  39 debug("Testing a slightly future date with the implicit delta. This should pass.");
  40 stubDateNow(60000, function() {
  41     shouldBeNow("60010");
  42 });
  43
  44 debug("Testing a past date with a large delta. This should pass.");
  45 stubDateNow(60000, function() {
  46     shouldBeNow("50000", 10000);
  47 });
  48
  49 debug("Testing a future date with a large delta. This should pass.");
  50 stubDateNow(60000, function() {
  51     shouldBeNow("70000", 10000);
  52 });
  53
  54 debug("Simulating a defective clock that always goes backwards. The test below should fail.");
  55 var badClock = Date.now();
  56 var realDateNow = Date.now;
  57 Date.now = function() { return --badClock; }
  58 shouldBeNow("new Date()");
  59 Date.now = realDateNow;
  60 </script>