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Libraries: Move to Userland/Libraries/

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This commit is contained in:
Andreas Kling 2021-01-12 12:17:30 +01:00
parent dc28c07fa5
commit 13d7c09125
1857 changed files with 266 additions and 274 deletions
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53
Libraries/LibJS/Tests/iterators/array-iterator.js
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@ -1,53 +0,0 @@
test("length", () => {
expect(Array.prototype[Symbol.iterator]).toHaveLength(0);
});
test("@@toStringTag", () => {
expect([].values()[Symbol.toStringTag]).toBe("Array Iterator");
expect([].values().toString()).toBe("[object Array Iterator]");
});
test("same function as Array.prototype.values", () => {
expect(Array.prototype[Symbol.iterator]).toBe(Array.prototype.values);
});
test("basic functionality", () => {
const a = [1, 2, 3];
const it = a[Symbol.iterator]();
expect(it.next()).toEqual({ value: 1, done: false });
expect(it.next()).toEqual({ value: 2, done: false });
expect(it.next()).toEqual({ value: 3, done: false });
expect(it.next()).toEqual({ value: undefined, done: true });
expect(it.next()).toEqual({ value: undefined, done: true });
expect(it.next()).toEqual({ value: undefined, done: true });
});
test("works when applied to non-object", () => {
[true, false, 9, 2n, Symbol()].forEach(primitive => {
const it = [][Symbol.iterator].call(primitive);
expect(it.next()).toEqual({ value: undefined, done: true });
expect(it.next()).toEqual({ value: undefined, done: true });
expect(it.next()).toEqual({ value: undefined, done: true });
});
});
test("item added to array before exhaustion is accessible", () => {
const a = [1, 2];
const it = a[Symbol.iterator]();
expect(it.next()).toEqual({ value: 1, done: false });
expect(it.next()).toEqual({ value: 2, done: false });
a.push(3);
expect(it.next()).toEqual({ value: 3, done: false });
expect(it.next()).toEqual({ value: undefined, done: true });
expect(it.next()).toEqual({ value: undefined, done: true });
});
test("item added to array after exhaustion is inaccessible", () => {
const a = [1, 2];
const it = a[Symbol.iterator]();
expect(it.next()).toEqual({ value: 1, done: false });
expect(it.next()).toEqual({ value: 2, done: false });
expect(it.next()).toEqual({ value: undefined, done: true });
a.push(3);
expect(it.next()).toEqual({ value: undefined, done: true });
});