summaryrefslogtreecommitdiff
path: root/test/language/expressions/compound-assignment/S11.13.2_A4.4_T1.3.js
blob: 099cc3d0de01011951bbb8b8e5bd91da9f034d7c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
// Copyright 2009 the Sputnik authors.  All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
info: The production x += y is the same as x = x + y
es5id: 11.13.2_A4.4_T1.3
description: Type(x) and Type(y) vary between Null and Undefined
---*/

var x;

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

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

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

//CHECK#4
x = null;
x += null;
if (x !== 0) {
  $ERROR('#4: x = null; x += null; x === 0. Actual: ' + (x));
}