test262/test/language/statements/while/S12.6.2_A1.js

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

/*---
info: |
    Expression from "while" IterationStatement is evaluated first; "false",
    "0", "null", "undefined" and "empty" strings used as the Expression are
    evaluated to "false"
es5id: 12.6.2_A1
description: Evaluating various Expressions
---*/

var __in__do;

while ( false ) __in__do=1;

//////////////////////////////////////////////////////////////////////////////
//CHECK#1
if (__in__do !== undefined) {
	throw new Test262Error('#1: false evaluates to false');
}
//
//////////////////////////////////////////////////////////////////////////////

while ( 0 ) __in__do=2;

//////////////////////////////////////////////////////////////////////////////
//CHECK#2
if (__in__do !== undefined) {
	throw new Test262Error('#2: 0 evaluates to false');
}
//
//////////////////////////////////////////////////////////////////////////////

while ( "" ) __in__do=3;

//////////////////////////////////////////////////////////////////////////////
//CHECK#3
if (__in__do !== undefined) {
	throw new Test262Error('#3: empty string evaluates to false');
}
//
//////////////////////////////////////////////////////////////////////////////

while ( null ) __in__do=4;

//////////////////////////////////////////////////////////////////////////////
//CHECK#4
if (__in__do !== undefined) {
	throw new Test262Error('#4: null evaluates to false');
}
//
//////////////////////////////////////////////////////////////////////////////

while ( undefined ) __in__do=35;

//////////////////////////////////////////////////////////////////////////////
//CHECK#5
if (__in__do !== undefined) {
	throw new Test262Error('#5: undefined evaluates to false');
}
//
//////////////////////////////////////////////////////////////////////////////