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LibJS: Add tests for %TypedArray%.prototype.toReversed

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Obinna Ikeh 2022-06-30 20:46:38 +01:00 • committed by Linus Groh
parent f78ef60be6
commit 5f726ace53
1 changed files with 68 additions and 0 deletions
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Userland/Libraries/LibJS/Tests/builtins/TypedArray/TypedArray.prototype.toReversed.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.toReversed).toHaveLength(0);
});
BIGINT_TYPED_ARRAYS.forEach(T => {
expect(T.prototype.toReversed).toHaveLength(0);
});
});
describe("basic functionality", () => {
test("Odd length array", () => {
TYPED_ARRAYS.forEach(T => {
const array = new T([1, 2, 3]);
expect(array.toReversed()).toEqual([3, 2, 1]);
expect(array).toEqual([1, 2, 3]);
});
BIGINT_TYPED_ARRAYS.forEach(T => {
const array = new T([1n, 2n, 3n]);
expect(array.toReversed()).toEqual([3n, 2n, 1n]);
expect(array).toEqual([1n, 2n, 3n]);
});
});
test("Even length array", () => {
TYPED_ARRAYS.forEach(T => {
const array = new T([1, 2]);
expect(array.toReversed()).toEqual([2, 1]);
expect(array).toEqual([1, 2]);
});
BIGINT_TYPED_ARRAYS.forEach(T => {
const array = new T([1n, 2n]);
expect(array.toReversed()).toEqual([2n, 1n]);
expect(array).toEqual([1n, 2n]);
});
});
test("Empty array", () => {
TYPED_ARRAYS.forEach(T => {
const array = new T([]);
expect(array.toReversed()).toEqual([]);
expect(array).toEqual([]);
});
BIGINT_TYPED_ARRAYS.forEach(T => {
const array = new T([]);
expect(array.toReversed()).toEqual([]);
expect(array).toEqual([]);
});
});
});