third_party/WebKit/LayoutTests/fast/js/Promise-bindings-check-exception.html

   1 <!DOCTYPE html>
   2 <script src="../../resources/js-test.js"></script>
   3 <div id="description"></div>
   4 <div id="console"></div>
   5 <script>
   6 // http://heycam.github.io/webidl/#es-operations
   7 description('Operations that return a Promise type should handle exceptions ' +
   8             'by returning a rejected Promise with the exception.')
   9
  10 window.jsTestIsAsync = true;
  11
  12 var reason;
  13
  14 function shouldBeRejected(promise, message) {
  15     return promise.then(function() {
  16         testFailed('Resolved unexpectedly: ' + message);
  17     }, function(e) {
  18         reason = e;
  19         testPassed('Rejected as expected: ' + message);
  20         shouldBeTrue('reason instanceof Error');
  21         debug(e);
  22     });
  23 }
  24
  25 function shouldBeResolved(promise, message) {
  26     return promise.then(function() {
  27         testPassed('Resolved as expected: ' + message);
  28     }, function(e) {
  29         testFailed('Rejected unexpectedly: ' + message);
  30         reason = e;
  31         shouldBeTrue('reason instanceof Error');
  32         debug(e);
  33     });
  34 }
  35
  36 var check = internals.promiseCheck.bind(internals);
  37 var check2 = internals.promiseCheckWithoutExceptionState.bind(internals);
  38 var check3 = internals.promiseCheckRange.bind(internals);
  39 var check4 = internals.promiseCheckOverload.bind(internals);
  40
  41 Promise.resolve().then(function() {
  42     return shouldBeRejected(check(), 'no arguments');
  43 }).then(function() {
  44     return shouldBeResolved(check(3, true, {}, '', ['']), 'valid arguments');
  45 }).then(function() {
  46     return shouldBeResolved(check(null, true, {}, '', []), 'convert(long)');
  47 }).then(function() {
  48     return shouldBeResolved(check(3, {}, {}, '', []), 'convert(boolean)');
  49 }).then(function() {
  50     return shouldBeRejected(check(3, true, 3, '', []), 'type error(Dictionary)');
  51 }).then(function() {
  52     return shouldBeResolved(check(3, true, {}, {}, []), 'convert(String)');
  53 }).then(function() {
  54     var x = {
  55         toString: function() {
  56             throw Error('Thrown from toString');
  57         }
  58     };
  59     return shouldBeRejected(check(3, true, {}, x, []), 'conversion error(toString)');
  60 }).then(function() {
  61     var x = {
  62         toString: function() {
  63             throw Error('Thrown from toString');
  64         }
  65     };
  66     return shouldBeRejected(check(3, true, {}, '', [x]), 'conversion error([String])');
  67 }).then(function() {
  68     return shouldBeRejected(check(3, false, {}, '', []), 'rejected by the impl');
  69 }).then(function() {
  70     return shouldBeRejected(check2(), 'no arguments');
  71 }).then(function() {
  72     return shouldBeResolved(check2({}, '', '', ''), 'valid arguments');
  73 }).then(function() {
  74     return shouldBeResolved(check2({}, ''), 'valid arguments');
  75 }).then(function() {
  76     return shouldBeRejected(check2(3, ''), 'type error(Dictionary)');
  77 }).then(function() {
  78     return shouldBeResolved(check2({}, '', {}, 3), 'convert(String...)');
  79 }).then(function() {
  80     var x = {
  81         toString: function() {
  82             throw Error('Thrown from toString');
  83         }
  84     };
  85     return shouldBeRejected(check2({}, '', '', x), 'conversion error(String...)');
  86 }).then(function() {
  87     return shouldBeRejected(check3(-1), 'range error(octet)');
  88 }).then(function() {
  89     return shouldBeResolved(check4(location), 'valid argument (Location)');
  90 }).then(function() {
  91     return shouldBeResolved(check4(document), 'valid argument (Document)');
  92 }).then(function() {
  93     return shouldBeResolved(check4(location, 0, 0), 'valid argument (Location, long, long)');
  94 }).then(function() {
  95     return shouldBeRejected(check4({}), 'type error (Object)');
  96 }).then(function() {
  97     return shouldBeRejected(check4(location, 0), 'type error (Location, long)');
  98 }).then(undefined, function(e) {
  99     testFailed('An exception is thrown from a method');
 100     debug(e);
 101 }).then(finishJSTest, finishJSTest);
 102 </script>