js/src/tests/test262/ch11/11.6/11.6.1/S11.6.1_A3.1_T2.2.js


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

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

/**
 * If Type(Primitive(x)) is not String and Type(Primitive(y)) is not String, then operator x + y returns ToNumber(x) + ToNumber(y)
 *
 * @path ch11/11.6/11.6.1/S11.6.1_A3.1_T2.2.js
 * @description Type(Primitive(x)) is different from Type(Primitive(y)) and both types vary between Number (primitive or object) and Null
 */

//CHECK#1
if (1 + null !== 1) {
  $ERROR('#1: 1 + null === 1. Actual: ' + (1 + null));
}

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

//CHECK#3
if (new Number(1) + null !== 1) {
  $ERROR('#3: new Number(1) + null === 1. Actual: ' + (new Number(1) + null));
}

//CHECK#4
if (null + new Number(1) !== 1) {
  $ERROR('#4: null + new Number(1) === 1. Actual: ' + (null + new Number(1)));
}