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LibJS: Add String.prototype.substring

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This commit is contained in:
Kesse Jones 2020-04-16 13:15:03 -03:00 • committed by Andreas Kling
parent 60d1ef6af4
commit b0b204822f
3 changed files with 68 additions and 0 deletions
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19
Libraries/LibJS/Tests/String.prototype.substring.js Normal file
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@ -0,0 +1,19 @@
load("test-common.js");
try {
assert(String.prototype.substring.length === 2);
assert("hello friends".substring() === "hello friends");
assert("hello friends".substring(1) === "ello friends");
assert("hello friends".substring(0, 5) === "hello");
assert("hello friends".substring(13, 6) === "friends");
assert("hello friends".substring('', 5) === "hello");
assert("hello friends".substring(3, 3) === "");
assert("hello friends".substring(-1, 13) === "hello friends");
assert("hello friends".substring(0, 50) === "hello friends");
assert("hello friends".substring(0, "5") === "hello");
assert("hello friends".substring("6", "13") === "friends");
console.log("PASS");
} catch (err) {
console.log("FAIL: " + err);
}