LayoutTests/ietestcenter/Javascript/TestCases/15.2.3.6-3-4.js

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/*
The abtract operation ToPropertyDescriptor  is used to package the
into a property desc. Step 10 of ToPropertyDescriptor throws a TypeError
if the property desc ends up having a mix of accessor and data property elements.
*/

ES5Harness.registerTest( {
id: "15.2.3.6-3-4",

path: "TestCases/chapter15/15.2/15.2.3/15.2.3.6/15.2.3.6-3-4.js",

description: "Object.defineProperty throws TypeError if desc has 'set' and 'writable' present",

test: function testcase() {
    var o = {};
    
    // dummy getter
    var setter = function () { }
    var desc = { set: setter, writable: false };
    
    try {
      Object.defineProperty(o, "foo", desc);
    }
    catch (e) {
      if (e instanceof TypeError &&
          (o.hasOwnProperty("foo") === false)) {
        return true;
      }
    }
 },

precondition: function prereq() {
  return fnExists(Object.defineProperty);
 }
});