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LibJS: Expose TypedArray.prototype.buffer
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// Update when more typed arrays get added
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const TYPED_ARRAYS = [
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Uint8Array,
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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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test("basic functionality", () => {
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TYPED_ARRAYS.forEach(T => {
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const typedArray = new T([1, 2, 3]);
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expect(Object.hasOwn(typedArray, "byteOffset")).toBeFalse();
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const buffer = typedArray.buffer;
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expect(buffer).toBeInstanceOf(ArrayBuffer);
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expect(buffer.byteLength).toBe(typedArray.byteLength);
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expect(buffer.byteLength).toBe(typedArray.length * typedArray.BYTES_PER_ELEMENT);
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const arrayFromBuffer = new T(buffer);
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expect(arrayFromBuffer.length).toBe(typedArray.length);
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expect(arrayFromBuffer.byteLength).toBe(typedArray.byteLength);
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expect(arrayFromBuffer.byteOffset).toBe(typedArray.byteOffset);
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expect(arrayFromBuffer[0]).toBe(typedArray[0]);
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expect(arrayFromBuffer[1]).toBe(typedArray[1]);
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expect(arrayFromBuffer[2]).toBe(typedArray[2]);
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});
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});
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