mirror of https://github.com/tc39/test262.git
31 lines
994 B
JavaScript
31 lines
994 B
JavaScript
// Copyright 2009 the Sputnik authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/**
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* 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)
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*
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* @path ch11/11.6/11.6.1/S11.6.1_A3.2_T2.4.js
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* @description Type(Primitive(x)) is different from Type(Primitive(y)) and both types vary between String (primitive or object) and Null
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*/
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//CHECK#1
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if ("1" + null !== "1null") {
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$ERROR('#1: "1" + null === "1null". Actual: ' + ("1" + null));
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}
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//CHECK#2
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if (null + "1" !== "null1") {
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$ERROR('#2: null + "1" === "null1". Actual: ' + (null + "1"));
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}
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//CHECK#3
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if (new String("1") + null !== "1null") {
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$ERROR('#3: new String("1") + null === "1null". Actual: ' + (new String("1") + null));
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}
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//CHECK#4
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if (null + new String("1") !== "null1") {
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$ERROR('#4: null + new String("1") === "null1". Actual: ' + (null + new String("1")));
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}
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