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+/// Copyright (c) 2009 Microsoft Corporation
+///
+/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
+/// that the following conditions are met:
+/// * Redistributions of source code must retain the above copyright notice, this list of conditions and
+/// the following disclaimer.
+/// * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
+/// the following disclaimer in the documentation and/or other materials provided with the distribution.
+/// * Neither the name of Microsoft nor the names of its contributors may be used to
+/// endorse or promote products derived from this software without specific prior written permission.
+///
+/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
+/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+ES5Harness.registerTest( {
+id: "15.4.4.16-8-7",
+
+path: "TestCases/chapter15/15.4/15.4.4/15.4.4.16/15.4.4.16-8-7.js",
+
+description: "Array.prototype.every returns true if 'length' is 0 (subclassed Array, length overridden with obj w/o valueOf (toString))",
+
+test: function testcase() {
+ foo.prototype = new Array(1, 2, 3);
+ function foo() {}
+ var f = new foo();
+
+ var o = { toString: function () { return '0';}};
+ f.length = o;
+
+ // objects inherit the default valueOf method of the Object object;
+ // that simply returns the itself. Since the default valueOf() method
+ // does not return a primitive value, ES next tries to convert the object
+ // to a number by calling its toString() method and converting the
+ // resulting string to a number.
+ function cb(){}
+ var i = f.every(cb);
+
+ if (i === true) {
+ return true;
+ }
+ },
+
+precondition: function prereq() {
+ return fnExists(Array.prototype.every);
+ }
+});