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LibJS: Add String.prototype.lastIndexOf

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Kesse Jones 2020-05-01 11:17:30 -03:00 • committed by Andreas Kling
parent 46b79eaad9
commit 6dbb5df81f
3 changed files with 62 additions and 0 deletions
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27
Libraries/LibJS/Tests/String.prototype.lastIndexOf.js Normal file
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@ -0,0 +1,27 @@
load("test-common.js");
try {
assert(String.prototype.lastIndexOf.length === 1);
assert("hello friends".lastIndexOf() === -1);
assert("hello friends".lastIndexOf("e") === 9);
assert("hello friends".lastIndexOf("e", -7) === -1);
assert("hello friends".lastIndexOf("e", 100) === 9);
assert("hello friends".lastIndexOf("") === 13);
assert("hello friends".lastIndexOf("Z") === -1);
assert("hello friends".lastIndexOf("serenity") === -1);
assert("hello friends".lastIndexOf("", 4) === 4);
assert("hello serenity friends".lastIndexOf("serenity") === 6);
assert("hello serenity friends serenity".lastIndexOf("serenity") === 23);
assert("hello serenity friends serenity".lastIndexOf("serenity", 14) === 6);
assert("".lastIndexOf("") === 0);
assert("".lastIndexOf("", 1) === 0);
assert("".lastIndexOf("", -1) === 0);
assert("hello friends serenity".lastIndexOf("h", 10) === 0);
assert("hello friends serenity".lastIndexOf("l", 4) === 3);
assert("hello friends serenity".lastIndexOf("s", 13) === 12);
assert("hello".lastIndexOf("serenity") === -1);
console.log("PASS");
} catch (err) {
console.log("FAIL: " + err);
}