JSTests/test262/test/language/expressions/compound-assignment/S11.13.2_A4.5_T2.5.js

// 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_A4.5_T2.5
description: >
    Type(x) is different from Type(y) and both types vary between
    String (primitive or object) and Boolean (primitive and object)
---*/

var x;

//CHECK#1
x = true;
x -= "1";
if (x !== 0) {
  throw new Test262Error('#1: x = true; x -= "1"; x === 0. Actual: ' + (x));
}

//CHECK#2
x = "1";
x -= true;
if (x !== 0) {
  throw new Test262Error('#2: x = "1"; x -= true; x === 0. Actual: ' + (x));
}

//CHECK#3
x = new Boolean(true);
x -= "1";
if (x !== 0) {
  throw new Test262Error('#3: x = new Boolean(true); x -= "1"; x === 0. Actual: ' + (x));
}

//CHECK#4
x = "1";
x -= new Boolean(true);
if (x !== 0) {
  throw new Test262Error('#4: x = "1"; x -= new Boolean(true); x === 0. Actual: ' + (x));
}

//CHECK#5
x = true;
x -= new String("1");
if (x !== 0) {
  throw new Test262Error('#5: x = true; x -= new String("1"); x === 0. Actual: ' + (x));
}

//CHECK#6
x = new String("1");
x -= true;
if (x !== 0) {
  throw new Test262Error('#6: x = new String("1"); x -= true; x === 0. Actual: ' + (x));
}

//CHECK#7
x = new Boolean(true);
x -= new String("1");
if (x !== 0) {
  throw new Test262Error('#7: x = new Boolean(true); x -= new String("1"); x === 0. Actual: ' + (x));
}

//CHECK#8
x = new String("1");
x -= new Boolean(true);
if (x !== 0) {
  throw new Test262Error('#8: x = new String("1"); x -= new Boolean(true); x === 0. Actual: ' + (x));
}