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22 ES5Harness.registerTest( {
25 path: "TestCases/chapter15/15.4/15.4.4/15.4.4.15/15.4.4.15-9-1.js",
27 description: "Array.prototype.lastIndexOf returns -1 for elements not present",
29 test: function testcase() {
37 if (a.lastIndexOf(1) !== 100 ||
38 a.lastIndexOf("") !== 99999 ||
39 a.lastIndexOf("str") !== 123456 ||
40 a.lastIndexOf(5.5) !== 5555 ||
41 a.lastIndexOf(1E+309) !== 5 )
45 if (a.lastIndexOf(true) === -1 &&
46 a.lastIndexOf(5) === -1 &&
47 a.lastIndexOf("str1") === -1 &&
48 a.lastIndexOf(null) === -1 &&
49 a.lastIndexOf(new Object()) === -1 )
55 precondition: function prereq() {
56 return fnExists(Array.prototype.lastIndexOf);