text: // Copyright (C) 2013 the V8 project authors. All rights reserved.
  // This code is governed by the BSD license found in the LICENSE file.
  /*---
  es6id: 19.1.2.4
  description: >
      Symbol used as property for default data property definition
  flags: [onlyStrict]
  features: [Symbol]
  ---*/
  var sym = Symbol();
  var obj = {};
  
  
  Object.defineProperty(obj, sym, {
    value: 1,
  });
  
  assert.sameValue(sym in obj, true, "The result of `sym in obj` is `true`");
  assert.sameValue(
    Object.hasOwnProperty.call(obj, sym),
    true,
    "`Object.hasOwnProperty.call(obj, sym)` returns `true`"
  );
  
  var desc = Object.getOwnPropertyDescriptor(obj, sym);
  
  assert.sameValue(desc.value, 1, "The value of `desc.value` is `1`");
  assert.sameValue(desc.configurable, false, "The value of `desc.configurable` is `false`");
  assert.sameValue(desc.writable, false, "The value of `desc.writable` is `false`");
  assert.sameValue(desc.enumerable, false, "The value of `desc.enumerable` is `false`");
  assert.sameValue(
    Object.prototype.propertyIsEnumerable.call(obj, sym),
    false,
    "`Object.prototype.propertyIsEnumerable.call(obj, sym)` returns `false`"
  );
  
  assert.throws(TypeError, function() {
    delete obj[sym];
  });
  
  assert.notSameValue(
    Object.getOwnPropertyDescriptor(obj, sym),
    undefined,
    "`Object.getOwnPropertyDescriptor(obj, sym)` does not return `undefined`"
  );
  
  assert.throws(TypeError, function() {
    obj[sym] = 2;
  });
  
  assert.sameValue(obj[sym], 1, "The value of `obj[sym]` is `1`");
  