src/third_party/mozjs-45/js/src/tests/test262/ch11/11.5/11.5.3/S11.5.3_A3_T1.4.js

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

/**
 * Operator x % y returns ToNumber(x) % ToNumber(y)
 *
 * @path ch11/11.5/11.5.3/S11.5.3_A3_T1.4.js
 * @description Type(x) and Type(y) vary between Null and Undefined
 */

//CHECK#1
if (isNaN(null % undefined) !== true) {
  $ERROR('#1: null % undefined === Not-a-Number. Actual: ' + (null % undefined));
}

//CHECK#2
if (isNaN(undefined % null) !== true) {
  $ERROR('#2: undefined % null === Not-a-Number. Actual: ' + (undefined % null));
}

//CHECK#3
if (isNaN(undefined % undefined) !== true) {
  $ERROR('#3: undefined % undefined === Not-a-Number. Actual: ' + (undefined % undefined));
}

//CHECK#4
if (isNaN(null % null) !== true) {
  $ERROR('#4: null % null === Not-a-Number. Actual: ' + (null % null));
}