michael@0: // Copyright 2009 the Sputnik authors.  All rights reserved.
michael@0: // This code is governed by the BSD license found in the LICENSE file.
michael@0: 
michael@0: /**
michael@0:  * Result of number conversion from number value equals to the input argument (no conversion)
michael@0:  *
michael@0:  * @path ch09/9.3/S9.3_A4.2_T2.js
michael@0:  * @description Number.NaN, +0, -0, Number.POSITIVE_INFINITY, Number.NEGATIVE_INFINITY,
michael@0:  * Number.MAX_VALUE and Number.MIN_VALUE convert to Number by implicit transformation
michael@0:  */
michael@0: 
michael@0: // CHECK#1
michael@0: if (isNaN(+(Number.NaN)) !== true) {
michael@0:   $ERROR('#1: +(NaN) === Not-a-Number. Actual: ' + (+(NaN))); 
michael@0: }
michael@0: 
michael@0: // CHECK#2
michael@0: if (+(+0) !== +0) {
michael@0:   $ERROR('#2.1: +(+0) === 0. Actual: ' + (+(+0))); 
michael@0: } else {
michael@0:   if (1/+(+0) !== Number.POSITIVE_INFINITY) {
michael@0:     $ERROR('#2.2: +(+0) === +0. Actual: -0');
michael@0:   }	
michael@0: }
michael@0: 
michael@0: // CHECK#3
michael@0: if (+(-0) !== -0) {
michael@0:   $ERROR('#3.1: +(-0) === 0. Actual: ' + (+(-0))); 
michael@0: } else {
michael@0:   if (1/+(-0) !== Number.NEGATIVE_INFINITY) {
michael@0:     $ERROR('#3.2: +(-0) === -0. Actual: +0');
michael@0:   }	
michael@0: }
michael@0: 
michael@0: // CHECK#4
michael@0: if (+(Number.POSITIVE_INFINITY) !== Number.POSITIVE_INFINITY) {
michael@0:   $ERROR('#4: +(+Infinity) === +Infinity. Actual: ' + (+(+Infinity))); 
michael@0: }
michael@0: 
michael@0: // CHECK#5
michael@0: if (+(Number.NEGATIVE_INFINITY) !== Number.NEGATIVE_INFINITY) {
michael@0:   $ERROR('#5: +(-Infinity) === -Infinity. Actual: ' + (+(-Infinity))); 
michael@0: }
michael@0: 
michael@0: // CHECK#6
michael@0: if (+(Number.MAX_VALUE) !== Number.MAX_VALUE) {
michael@0:   $ERROR('#6: +(Number.MAX_VALUE) === Number.MAX_VALUE. Actual: ' + (+(Number.MAX_VALUE))); 
michael@0: }
michael@0: 
michael@0: // CHECK#7
michael@0: if (+(Number.MIN_VALUE) !== Number.MIN_VALUE) {
michael@0:   $ERROR('#7: +(Number.MIN_VALUE) === Number.MIN_VALUE. Actual: ' + (+(Number.MIN_VALUE))); 
michael@0: }
michael@0: