JSTests/test262/test/language/expressions/subtraction/S11.6.2_A2.4_T1.js

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

/*---
info: First expression is evaluated first, and then second expression
es5id: 11.6.2_A2.4_T1
description: Checking with "="
---*/

//CHECK#1
var x = 0; 
if ((x = 1) - x !== 0) {
  $ERROR('#1: var x = 0; (x = 1) - x === 0. Actual: ' + ((x = 1) - x));
}

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