JSTests/test262/test/language/expressions/comma/S11.14_A3.js

// Copyright 2009 the Sputnik authors.  All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
info: Comma Operator evaluates all Expressions and returns the last of them
es5id: 11.14_A3
description: Checking with "="
---*/

//CHECK#1
var x = 0;
var y = 0;
var z = 0;
if ((x = 1, y = 2, z = 3) !== 3) {
  $ERROR('#1: var x = 0; var y = 0; var z = 0; (x = 1, y = 2, z = 3) === 3. Actual: ' + ((x = 1, y = 2, z = 3)));
}

var x = 0;
var y = 0;
var z = 0;
x = 1, y = 2, z = 3;

//CHECK#2
if (x !== 1) {
  $ERROR('#2: var x = 0; var y = 0; var z = 0; x = 1, y = 2, z = 3; x === 1. Actual: ' + (x));
}

//CHECK#3
if (y !== 2) {
  $ERROR('#3: var x = 0; var y = 0; var z = 0; x = 1, y = 2, z = 3; y === 2. Actual: ' + (y));
}

//CHECK#4
if (z !== 3) {
  $ERROR('#4: var x = 0; var y = 0; var z = 0; x = 1, y = 2, z = 3; z === 3. Actual: ' + (z));
}