tests/stress/exception-in-to-property-key-should-be-handled-early-in-object-methods.js

   1
   2 var propertyKey = {
   3     toString() {
   4         throw new Error("propertyKey.toString is called.");
   5     }
   6 };
   7
   8 function shouldThrow(func, message) {
   9     var error = null;
  10     try {
  11         func();
  12     } catch (e) {
  13         error = e;
  14     }
  15     if (!error)
  16         throw new Error("not thrown.");
  17     if (String(error) !== message)
  18         throw new Error("bad error: " + String(error));
  19 }
  20
  21 var object = {};
  22
  23 shouldThrow(function () {
  24     object.hasOwnProperty(propertyKey);
  25 }, "Error: propertyKey.toString is called.");
  26
  27 shouldThrow(function () {
  28     Object.prototype.hasOwnProperty.call(null, propertyKey);
  29 }, "Error: propertyKey.toString is called.");
  30
  31 shouldThrow(function () {
  32     Object.prototype.hasOwnProperty.call(null, 'ok');
  33 }, "TypeError: null is not an object (evaluating 'Object.prototype.hasOwnProperty.call(null, 'ok')')");
  34
  35 shouldThrow(function () {
  36     object.propertyIsEnumerable(propertyKey);
  37 }, "Error: propertyKey.toString is called.");
  38
  39 // ToPropertyKey is first, ToObject is following.
  40 shouldThrow(function () {
  41     Object.prototype.propertyIsEnumerable.call(null, propertyKey);
  42 }, "Error: propertyKey.toString is called.");
  43
  44 shouldThrow(function () {
  45     // ToPropertyKey is first, ToObject is following.
  46     Object.prototype.propertyIsEnumerable.call(null, 'ok');
  47 }, "TypeError: null is not an object (evaluating 'Object.prototype.propertyIsEnumerable.call(null, 'ok')')");
  48
  49 shouldThrow(function () {
  50     object.__defineGetter__(propertyKey, function () {
  51         return 'NG';
  52     });
  53 }, "Error: propertyKey.toString is called.");
  54
  55 if (Object.getOwnPropertyDescriptor(object, ''))
  56     throw new Error("bad descriptor");
  57
  58 shouldThrow(function () {
  59     object.__defineSetter__(propertyKey, function () {
  60         return 'NG';
  61     });
  62 }, "Error: propertyKey.toString is called.");
  63
  64 if (Object.getOwnPropertyDescriptor(object, ''))
  65     throw new Error("bad descriptor");
  66
  67 shouldThrow(function () {
  68     object.__lookupGetter__(propertyKey);
  69 }, "Error: propertyKey.toString is called.");
  70
  71 shouldThrow(function () {
  72     object.__lookupSetter__(propertyKey);
  73 }, "Error: propertyKey.toString is called.");