mirror of https://github.com/tc39/test262.git
51 lines
1.0 KiB
JavaScript
51 lines
1.0 KiB
JavaScript
// 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_T1.4
|
|
description: Type(x) and Type(y) vary between primitive string and String object
|
|
---*/
|
|
|
|
var x;
|
|
|
|
//CHECK#1
|
|
x = "1";
|
|
x += "1";
|
|
if (x !== "11") {
|
|
$ERROR('#1: x = "1"; x += "1"; x === "11". Actual: ' + (x));
|
|
}
|
|
|
|
//CHECK#2
|
|
x = new String("1");
|
|
x += "1";
|
|
if (x !== "11") {
|
|
$ERROR('#2: x = new String("1"); x += "1"; x === "11". Actual: ' + (x));
|
|
}
|
|
|
|
//CHECK#3
|
|
x = "1";
|
|
x += new String("1");
|
|
if (x !== "11") {
|
|
$ERROR('#3: x = "1"; x += new String("1"); x === "11". Actual: ' + (x));
|
|
}
|
|
|
|
//CHECK#4
|
|
x = new String("1");
|
|
x += new String("1");
|
|
if (x !== "11") {
|
|
$ERROR('#4: x = new String("1"); x += new String("1"); x === "11". Actual: ' + (x));
|
|
}
|
|
|
|
//CHECK#5
|
|
if ("x" + "1" !=="x1") {
|
|
$ERROR('#5: x = "x"; x += "1"; x === "x1". Actual: ' + (x));
|
|
}
|
|
|
|
//CHECK#6
|
|
x = "1";
|
|
x += "x";
|
|
if (x !== "1x") {
|
|
$ERROR('#6: x = "1"; x += "x"; x === "1x". Actual: ' + (x));
|
|
}
|