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diff --git a/Source/JavaScriptCore/tests/mozilla/ecma_2/Exceptions/number-002.js b/Source/JavaScriptCore/tests/mozilla/ecma_2/Exceptions/number-002.js
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+/**
+    File Name:          number-002.js
+    Corresponds To:     ecma/Number/15.7.4.3-2-n.js
+    ECMA Section:       15.7.4.3.1 Number.prototype.valueOf()
+    Description:
+    Returns this number value.
+
+    The valueOf function is not generic; it generates a runtime error if its
+    this value is not a Number object. Therefore it cannot be transferred to
+    other kinds of objects for use as a method.
+
+    Author:             christine@netscape.com
+    Date:               16 september 1997
+*/
+    var SECTION = "number-002";
+    var VERSION = "JS1_4";
+    var TITLE   = "Exceptions for Number.valueOf()";
+
+    startTest();
+    writeHeaderToLog( SECTION + " Number.prototype.valueOf()");
+
+    var testcases = new Array();
+    var tc = 0;
+
+    var result = "Failed";
+    var exception = "No exception thrown";
+    var expect = "Passed";
+
+    try {
+        object= new Object();
+        object.toString = Number.prototype.valueOf;
+        result = object.toString();
+    } catch ( e ) {
+        result = expect;
+        exception = e.toString();
+    }
+
+    testcases[tc++] = new TestCase(
+        SECTION,
+        "object = new Object(); object.valueOf = Number.prototype.valueOf; object.valueOf()" +
+        " (threw " + exception +")",
+        expect,
+        result );
+
+    test();