JSTests/test262/test/built-ins/Number/S15.7.3_A4.js - WebKit - Git at Google

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

 /*---
 info: The Number constructor has the property "NaN"
 es5id: 15.7.3_A4
 description: Checking existence of the property "NaN"
 ---*/
 assert(Number.hasOwnProperty("NaN"), 'Number.hasOwnProperty("NaN") must return true');
	// Copyright 2009 the Sputnik authors. All rights reserved.
	// This code is governed by the BSD license found in the LICENSE file.

	/*---
	info: The Number constructor has the property "NaN"
	es5id: 15.7.3_A4
	description: Checking existence of the property "NaN"
	---*/
	assert(Number.hasOwnProperty("NaN"), 'Number.hasOwnProperty("NaN") must return true');