import { MessageTypes } from "../../src/common"; import { packers } from "../../src/mapping"; test("Create a keepalive (0x0005) packet.", () => { // When const packedPacket = packers[MessageTypes.Keepalive](); // Then const expectedResult = new Uint8Array([0x00, 0x05, 0x00, 0x00]); expect(packedPacket).toMatchObject(expectedResult); });