text: /* eslint-env mocha, browser */
  /* global proclaim */
  
  var arePropertyDescriptorsSupported = function () {
  	var obj = {};
  	try {
  		Object.defineProperty(obj, 'x', { enumerable: false, value: obj });
          /* eslint-disable no-unused-vars, no-restricted-syntax */
          for (var _ in obj) { return false; }
          /* eslint-enable no-unused-vars, no-restricted-syntax */
  		return obj.x === obj;
  	} catch (e) { // this is IE 8.
  		return false;
  	}
  };
  var supportsDescriptors = Object.defineProperty && arePropertyDescriptorsSupported();
  
  it('has the well known symbol replace as static properties on Symbol', function() {
  	proclaim.notEqual(Symbol.replace, undefined);
  
  	if (supportsDescriptors) {
  		var replace = Symbol.replace;
  		Symbol.replace = "nope";
  		proclaim.equal(Symbol.replace, replace);
  	}
  });
  