pjs/js/tests/ecma_2/Statements/while-002.js

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JavaScript

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/**
* File Name: while-002
* ECMA Section:
* Description: while statement
*
* Verify that the while statement is not executed if the while expression is
* false
*
* Author: christine@netscape.com
* Date: 11 August 1998
*/
var SECTION = "while-002";
var VERSION = "ECMA_2";
var TITLE = "while statement";
startTest();
writeHeaderToLog( SECTION + " "+ TITLE);
DoWhile( new DoWhileObject(
"while expression is null",
null,
"result = \"fail: should not have evaluated statements in while block;break"
) );
DoWhile( new DoWhileObject(
"while expression is undefined",
void 0,
"result = \"fail: should not have evaluated statements in while block; break"
));
DoWhile( new DoWhileObject(
"while expression is 0",
0,
"result = \"fail: should not have evaluated statements in while block; break;"
));
DoWhile( new DoWhileObject(
"while expression is eval(\"\")",
eval(""),
"result = \"fail: should not have evaluated statements in while block; break"
));
DoWhile( new DoWhileObject(
"while expression is NaN",
NaN,
"result = \"fail: should not have evaluated statements in while block; break"
));
test();
function DoWhileObject( d, e, s ) {
this.description = d;
this.whileExpression = e;
this.statements = s;
}
function DoWhile( object ) {
result = "pass";
while ( expression = object.whileExpression ) {
eval( object.statements );
}
// verify that the while expression was evaluated
new TestCase(
SECTION,
"verify that while expression was evaluated (should be "+
object.whileExpression +")",
"pass",
(object.whileExpression == expression ||
( isNaN(object.whileExpression) && isNaN(expression) )
) ? "pass" : "fail" );
new TestCase(
SECTION,
object.description,
"pass",
result );
}