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LibJS: Add tests for %TypedArray%.prototype.with
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const TYPED_ARRAYS = [
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Uint8Array,
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Uint8ClampedArray,
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Uint16Array,
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Uint32Array,
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Int8Array,
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Int16Array,
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Int32Array,
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Float32Array,
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Float64Array,
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];
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const BIGINT_TYPED_ARRAYS = [BigUint64Array, BigInt64Array];
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describe("normal behavior", () => {
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test("length is 2", () => {
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TYPED_ARRAYS.forEach(T => {
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expect(T.prototype.with).toHaveLength(2);
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});
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BIGINT_TYPED_ARRAYS.forEach(T => {
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expect(T.prototype.with).toHaveLength(2);
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});
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});
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test("basic functionality", () => {
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TYPED_ARRAYS.forEach(T => {
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const a = new T([1, 2, 3, 4, 5]);
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const values = [
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[0, 10, [10, 2, 3, 4, 5]],
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[-5, 10, [10, 2, 3, 4, 5]],
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[4, 10, [1, 2, 3, 4, 10]],
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[-1, 10, [1, 2, 3, 4, 10]],
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];
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for (const [index, value, expected] of values) {
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const b = a.with(index, value);
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expect(a).not.toBe(b);
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expect(a).toEqual([1, 2, 3, 4, 5]);
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expect(b).toEqual(expected);
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}
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});
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BIGINT_TYPED_ARRAYS.forEach(T => {
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const a = new T([1n, 2n, 3n, 4n, 5n]);
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const values = [
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[0, 10n, [10n, 2n, 3n, 4n, 5n]],
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[-5, 10n, [10n, 2n, 3n, 4n, 5n]],
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[4, 10n, [1n, 2n, 3n, 4n, 10n]],
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[-1, 10n, [1n, 2n, 3n, 4n, 10n]],
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];
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for (const [index, value, expected] of values) {
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const b = a.with(index, value);
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expect(a).not.toBe(b);
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expect(a).toEqual([1n, 2n, 3n, 4n, 5n]);
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expect(b).toEqual(expected);
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}
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});
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});
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});
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