src/third_party/mozjs-45/js/src/tests/test262/ch11/11.6/11.6.1/S11.6.1_A3.2_T2.1.js

// 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 String or Type(Primitive(y)) is String, then operator x + y returns the result of concatenating ToString(x) followed by ToString(y)
 *
 * @path ch11/11.6/11.6.1/S11.6.1_A3.2_T2.1.js
 * @description Type(Primitive(x)) is different from Type(Primitive(y)) and both types vary between Number (primitive or object) and String (primitive and object)
 */

//CHECK#1
if ("1" + 1 !== "11") {
  $ERROR('#1: "1" + 1 === "11". Actual: ' + ("1" + 1));
}

//CHECK#2
if (1 + "1" !== "11") {
  $ERROR('#2: 1 + "1" === "11". Actual: ' + (1 + "1"));
}

//CHECK#3
if (new String("1") + 1 !== "11") {
  $ERROR('#3: new String("1") + 1 === "11". Actual: ' + (new String("1") + 1));
}

//CHECK#4
if (1 + new String("1") !== "11") {
  $ERROR('#4: 1 + new String("1") === "11". Actual: ' + (1 + new String("1")));
}

//CHECK#5
if ("1" + new Number(1) !== "11") {
  $ERROR('#5: "1" + new Number(1) === "11". Actual: ' + ("1" + new Number(1)));
}

//CHECK#6
if (new Number(1) + "1" !== "11") {
  $ERROR('#6: new Number(1) + "1" === "11". Actual: ' + (new Number(1) + "1"));
}

//CHECK#7
if (new String("1") + new Number(1) !== "11") {
  $ERROR('#7: new String("1") + new Number(1) === "11". Actual: ' + (new String("1") + new Number(1)));
}

//CHECK#8
if (new Number(1) + new String("1") !== "11") {
  $ERROR('#8: new Number(1) + new String("1") === "11". Actual: ' + (new Number(1) + new String("1")));
}

//CHECK#9
if ("x" + 1 !=="x1") {
  $ERROR('#9: "x" + 1 === "x1". Actual: ' + ("x" + 1));
}

//CHECK#10
if (1 + "x" !== "1x") {
  $ERROR('#10: 1 + "x" === "1x". Actual: ' + (1 + "x"));
}