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LibJS: Add %TypedArray%.prototype.entries

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Luke 2021-06-26 01:01:39 +01:00 • committed by Linus Groh
parent a6324481e1
commit a1f3e711c0
3 changed files with 57 additions and 0 deletions
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46
Userland/Libraries/LibJS/Tests/builtins/TypedArray/TypedArray.prototype.entries.js Normal file
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const TYPED_ARRAYS = [
Uint8Array,
Uint16Array,
Uint32Array,
Int8Array,
Int16Array,
Int32Array,
Float32Array,
Float64Array,
];
const BIGINT_TYPED_ARRAYS = [BigUint64Array, BigInt64Array];
test("length is 0", () => {
TYPED_ARRAYS.forEach(T => {
expect(T.prototype.entries).toHaveLength(0);
});
BIGINT_TYPED_ARRAYS.forEach(T => {
expect(T.prototype.entries).toHaveLength(0);
});
});
test("basic functionality", () => {
TYPED_ARRAYS.forEach(T => {
const a = new T([30, 40, 50]);
const it = a.entries();
expect(it.next()).toEqual({ value: [0, 30], done: false });
expect(it.next()).toEqual({ value: [1, 40], done: false });
expect(it.next()).toEqual({ value: [2, 50], 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 });
});
BIGINT_TYPED_ARRAYS.forEach(T => {
const a = new T([30n, 40n, 50n]);
const it = a.entries();
expect(it.next()).toEqual({ value: [0, 30n], done: false });
expect(it.next()).toEqual({ value: [1, 40n], done: false });
expect(it.next()).toEqual({ value: [2, 50n], 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 });
});
});