The Tor Browser: js/src/tests/test262/ch11/11.13/11.13.2/S11.13.2_A4.4

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 // Copyright 2009 the Sputnik authors.  All rights reserved.

     2 // This code is governed by the BSD license found in the LICENSE file.

     4 /**

     5  * The production x += y is the same as x = x + y

     6  *

     7  * @path ch11/11.13/11.13.2/S11.13.2_A4.4_T2.2.js

     8  * @description Type(x) is different from Type(y) and both types vary between Number (primitive or object) and Null

     9  */

    11 //CHECK#1

    12 x = 1;

    13 x += null;

    14 if (x !== 1) {

    15   $ERROR('#1: x = 1; x += null; x === 1. Actual: ' + (x));

    16 }

    18 //CHECK#2

    19 x = null;

    20 x += 1;

    21 if (x !== 1) {

    22   $ERROR('#2: x = null; x += 1; x === 1. Actual: ' + (x));

    23 }

    25 //CHECK#3

    26 x = new Number(1);

    27 x += null;

    28 if (x !== 1) {

    29   $ERROR('#3: x = new Number(1); x += null; x === 1. Actual: ' + (x));

    30 }

    32 //CHECK#4

    33 x = null;

    34 x += new Number(1);

    35 if (x !== 1) {

    36   $ERROR('#4: x = null; x += new Number(1); x === 1. Actual: ' + (x));

    37 }

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