michael@0: // |reftest| fails
michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: /*
michael@0:  * Date: 2001-07-15
michael@0:  *
michael@0:  * SUMMARY: Testing Number.prototype.toExponential(fractionDigits)
michael@0:  * See EMCA 262 Edition 3 Section 15.7.4.6
michael@0:  *
michael@0:  * Also see http://bugzilla.mozilla.org/show_bug.cgi?id=90551
michael@0:  *
michael@0:  */
michael@0: //-----------------------------------------------------------------------------
michael@0: var UBound = 0;
michael@0: var BUGNUMBER = '(none)';
michael@0: var summary = 'Testing Number.prototype.toExponential(fractionDigits)';
michael@0: var cnIsRangeError = 'instanceof RangeError';
michael@0: var cnNotRangeError = 'NOT instanceof RangeError';
michael@0: var cnNoErrorCaught = 'NO ERROR CAUGHT...';
michael@0: var status = '';
michael@0: var statusitems = [];
michael@0: var actual = '';
michael@0: var actualvalues = [];
michael@0: var expect= '';
michael@0: var expectedvalues = [];
michael@0: var testNum = 77.1234;
michael@0: 
michael@0: 
michael@0: status = 'Section A of test: no error intended!';
michael@0: actual = testNum.toExponential(4);
michael@0: expect = '7.7123e+1';
michael@0: captureThis();
michael@0: 
michael@0: status = 'Section B of test: Infinity.toExponential() with out-of-range fractionDigits';
michael@0: actual = Number.POSITIVE_INFINITY.toExponential(-3);
michael@0: expect = 'Infinity';
michael@0: captureThis();
michael@0: 
michael@0: status = 'Section C of test: -Infinity.toExponential() with out-of-range fractionDigits';
michael@0: actual = Number.NEGATIVE_INFINITY.toExponential(-3);
michael@0: expect = '-Infinity';
michael@0: captureThis();
michael@0: 
michael@0: status = 'Section D of test: NaN.toExponential() with out-of-range fractionDigits';
michael@0: actual = Number.NaN.toExponential(-3);
michael@0: expect = 'NaN';
michael@0: captureThis();
michael@0: 
michael@0: 
michael@0: ///////////////////////////    OOPS....    ///////////////////////////////
michael@0: /*************************************************************************
michael@0:  * 15.7.4.6 Number.prototype.toExponential(fractionDigits)
michael@0:  *
michael@0:  * An implementation is permitted to extend the behaviour of toExponential
michael@0:  * for values of fractionDigits less than 0 or greater than 20. In this
michael@0:  * case toExponential would not necessarily throw RangeError for such values.
michael@0: 
michael@0: status = 'Section B of test: expect RangeError because fractionDigits < 0';
michael@0: actual = catchError('testNum.toExponential(-4)');
michael@0: expect = cnIsRangeError;
michael@0: captureThis();
michael@0: 
michael@0: status = 'Section C of test: expect RangeError because fractionDigits > 20 ';
michael@0: actual = catchError('testNum.toExponential(21)');
michael@0: expect = cnIsRangeError;
michael@0: captureThis();
michael@0: *************************************************************************/
michael@0: 
michael@0: 
michael@0: 
michael@0: //-----------------------------------------------------------------------------
michael@0: test();
michael@0: //-----------------------------------------------------------------------------
michael@0: 
michael@0: 
michael@0: function captureThis()
michael@0: {
michael@0:   statusitems[UBound] = status;
michael@0:   actualvalues[UBound] = actual;
michael@0:   expectedvalues[UBound] = expect;
michael@0:   UBound++;
michael@0: }
michael@0: 
michael@0: 
michael@0: function test()
michael@0: {
michael@0:   enterFunc ('test');
michael@0:   printBugNumber(BUGNUMBER);
michael@0:   printStatus (summary);
michael@0: 
michael@0:   for (var i = 0; i < UBound; i++)
michael@0:   {
michael@0:     reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);
michael@0:   }
michael@0: 
michael@0:   exitFunc ('test');
michael@0: }
michael@0: 
michael@0: 
michael@0: function catchError(sEval)
michael@0: {
michael@0:   try {eval(sEval);}
michael@0:   catch(e) {return isRangeError(e);}
michael@0:   return cnNoErrorCaught;
michael@0: }
michael@0: 
michael@0: 
michael@0: function isRangeError(obj)
michael@0: {
michael@0:   if (obj instanceof RangeError)
michael@0:     return cnIsRangeError;
michael@0:   return cnNotRangeError;
michael@0: }