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LibJS: Add %TypedArray%.prototype.reverse

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This fixes 13 test262 cases.
This commit is contained in:
Luke 2021-07-06 02:36:59 +01:00 • committed by Linus Groh
parent 275092bb03
commit d89f539d16
3 changed files with 111 additions and 0 deletions
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67
Userland/Libraries/LibJS/Tests/builtins/TypedArray/TypedArray.prototype.reverse.js Normal file
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const TYPED_ARRAYS = [
Uint8Array,
Uint8ClampedArray,
Uint16Array,
Uint32Array,
Int8Array,
Int16Array,
Int32Array,
Float32Array,
Float64Array,
];
const BIGINT_TYPED_ARRAYS = [BigUint64Array, BigInt64Array];
test("length is 0", () => {
TYPED_ARRAYS.forEach(T => {
expect(T.prototype.reverse).toHaveLength(0);
});
BIGINT_TYPED_ARRAYS.forEach(T => {
expect(T.prototype.reverse).toHaveLength(0);
});
});
describe("basic functionality", () => {
test("Odd length array", () => {
TYPED_ARRAYS.forEach(T => {
const array = new T([1, 2, 3]);
expect(array.reverse()).toEqual([3, 2, 1]);
expect(array).toEqual([3, 2, 1]);
});
BIGINT_TYPED_ARRAYS.forEach(T => {
const array = new T([1n, 2n, 3n]);
expect(array.reverse()).toEqual([3n, 2n, 1n]);
expect(array).toEqual([3n, 2n, 1n]);
});
});
test("Even length array", () => {
TYPED_ARRAYS.forEach(T => {
const array = new T([1, 2]);
expect(array.reverse()).toEqual([2, 1]);
expect(array).toEqual([2, 1]);
});
BIGINT_TYPED_ARRAYS.forEach(T => {
const array = new T([1n, 2n]);
expect(array.reverse()).toEqual([2n, 1n]);
expect(array).toEqual([2n, 1n]);
});
});
test("Empty array", () => {
TYPED_ARRAYS.forEach(T => {
const array = new T([]);
expect(array.reverse()).toEqual([]);
expect(array).toEqual([]);
});
BIGINT_TYPED_ARRAYS.forEach(T => {
const array = new T([]);
expect(array.reverse()).toEqual([]);
expect(array).toEqual([]);
});
});
});