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LibJS: Make Array.prototype.shift generic

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davidot 2021-06-12 19:23:33 +02:00 • committed by Linus Groh
parent 690eb3bb8a
commit 7c1e2adf8a
2 changed files with 51 additions and 6 deletions
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10
Userland/Libraries/LibJS/Tests/builtins/Array/Array.prototype-generic-functions.js
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@ -100,6 +100,16 @@ describe("ability to work with generic non-array objects", () => {
expect(Array.prototype.includes.call({ length: 5, 2: "foo" }, "foo")).toBeTrue();
});
test("shift", () => {
expect(Array.prototype.shift.call({})).toBeUndefined();
expect(Array.prototype.shift.call({ length: 0 })).toBeUndefined();
const o = { length: 5, 0: "a", 1: "b", 3: "c" };
const front = Array.prototype.shift.call(o);
expect(front).toEqual("a");
expect(o).toEqual({ length: 4, 0: "b", 2: "c" });
});
const o = { length: 5, 0: "foo", 1: "bar", 3: "baz" };
test("every", () => {