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 Type(Primitive(x)) is String or Type(Primitive(y)) is String, then operator x + y returns the result of concatenating ToString(x) followed by ToString(y)
michael@0:  *
michael@0:  * @path ch11/11.6/11.6.1/S11.6.1_A3.2_T2.4.js
michael@0:  * @description Type(Primitive(x)) is different from Type(Primitive(y)) and both types vary between String (primitive or object) and Null
michael@0:  */
michael@0: 
michael@0: //CHECK#1
michael@0: if ("1" + null !== "1null") {
michael@0:   $ERROR('#1: "1" + null === "1null". Actual: ' + ("1" + null));
michael@0: }
michael@0: 
michael@0: //CHECK#2
michael@0: if (null + "1" !== "null1") {
michael@0:   $ERROR('#2: null + "1" === "null1". Actual: ' + (null + "1"));
michael@0: }
michael@0: 
michael@0: //CHECK#3
michael@0: if (new String("1") + null !== "1null") {
michael@0:   $ERROR('#3: new String("1") + null === "1null". Actual: ' + (new String("1") + null));
michael@0: }
michael@0: 
michael@0: //CHECK#4
michael@0: if (null + new String("1") !== "null1") {
michael@0:   $ERROR('#4: null + new String("1") === "null1". Actual: ' + (null + new String("1")));
michael@0: }
michael@0: