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:  * If one expression is undefined or null and another is not, return false
michael@0:  *
michael@0:  * @path ch11/11.9/11.9.2/S11.9.2_A6.2_T1.js
michael@0:  * @description x is null or undefined, y is not
michael@0:  */
michael@0: 
michael@0: //CHECK#1
michael@0: if ((undefined != true) !== true) {
michael@0:   $ERROR('#1: (undefined != true) === true');
michael@0: }
michael@0: 
michael@0: //CHECK#2
michael@0: if ((undefined != 0) !== true) {
michael@0:   $ERROR('#2: (undefined != 0) === true');
michael@0: }
michael@0: 
michael@0: //CHECK#3
michael@0: if ((undefined != "undefined") !== true) {
michael@0:   $ERROR('#3: (undefined != "undefined") === true');
michael@0: }
michael@0: 
michael@0: //CHECK#4
michael@0: if ((undefined != {}) !== true) {
michael@0:   $ERROR('#4: (undefined != {}) === true');
michael@0: }
michael@0: 
michael@0: //CHECK#5
michael@0: if ((null != false) !== true) {
michael@0:   $ERROR('#5: (null != false) === true');
michael@0: }
michael@0: 
michael@0: //CHECK#6
michael@0: if ((null != 0) !== true) {
michael@0:   $ERROR('#6: (null != 0) === true');
michael@0: }
michael@0: 
michael@0: //CHECK#7
michael@0: if ((null != "null") !== true) {
michael@0:   $ERROR('#7: (null != "null") === true');
michael@0: }
michael@0: 
michael@0: //CHECK#8
michael@0: if ((null != {}) !== true) {
michael@0:   $ERROR('#8: (null != {}) === true');
michael@0: }
michael@0: