test("basic functionality", () => { expect(SharedArrayBuffer).toHaveLength(1); expect(SharedArrayBuffer.name).toBe("SharedArrayBuffer"); expect(SharedArrayBuffer.prototype.constructor).toBe(SharedArrayBuffer); expect(new SharedArrayBuffer()).toBeInstanceOf(SharedArrayBuffer); expect(typeof new SharedArrayBuffer()).toBe("object"); }); test("SharedArrayBuffer constructor must be invoked with 'new'", () => { expect(() => { SharedArrayBuffer(); }).toThrowWithMessage(TypeError, "SharedArrayBuffer constructor must be called with 'new'"); }); test("SharedArrayBuffer size limit", () => { expect(() => { new SharedArrayBuffer(2 ** 53); }).toThrowWithMessage(RangeError, "Invalid shared array buffer length"); });