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23 ES5Harness.registerTest( {
26 path: "TestCases/chapter15/15.4/15.4.4/15.4.4.15/15.4.4.15-4-6.js",
28 description: "Array.prototype.lastIndexOf returns -1 if 'length' is 0 (subclassed Array, length overridden with obj with valueOf)",
30 test: function testcase() {
32 var i = Array.prototype.lastIndexOf.call({length: { valueOf: function () { return 0;}}}, 1);
39 precondition: function prereq() {
40 return fnExists(Array.prototype.lastIndexOf);