text: // Copyright (c) 2012 Ecma International.  All rights reserved.
  // This code is governed by the BSD license found in the LICENSE file.
  
  /*---
  esid: sec-array.prototype.indexof
  description: >
      Array.prototype.indexOf - side effects produced by step 2 are
      visible when an exception occurs
  ---*/
  
  var stepTwoOccurs = false;
  var stepFiveOccurs = false;
  
  var obj = {};
  
  Object.defineProperty(obj, "length", {
    get: function() {
      stepTwoOccurs = true;
      if (stepFiveOccurs) {
        throw new Error("Step 5 occurred out of order");
      }
      return 20;
    },
    configurable: true
  });
  
  var fromIndex = {
    valueOf: function() {
      stepFiveOccurs = true;
      return 0;
    }
  };
  
  Array.prototype.indexOf.call(obj, undefined, fromIndex);
  
  assert(stepTwoOccurs, 'stepTwoOccurs !== true');
  assert(stepFiveOccurs, 'stepFiveOccurs !== true');
  