dlms-protocol/tests/SetResponse.test.js

DLMS Protocol parser for JavaScript

import SetResponse from "../src/messages/SetResponse";
import MessageType from "../src/enum/MessageType";

describe("SetResponse class", () => {
    test("should initialize with default values when no bytes are provided", () => {
        const setResponse = new SetResponse();

        expect(setResponse.setType).toBe(0);
        expect(setResponse.invokeIdAndPriority).toBe(0);
        expect(setResponse.dataAccessResult).toBeNull();
        expect(setResponse.value).toEqual([]);
    });

    test("should correctly parse bytes with insertData()", () => {
        const bytes = [
            MessageType.SET_RESPONSE, // Message type
            0x01, // setType
            0xC3, // invokeIdAndPriority
            0x05, // dataAccessResult
        ];

        const setResponse = new SetResponse(bytes);

        expect(setResponse.setType).toBe(0x01);
        expect(setResponse.invokeIdAndPriority).toBe(0xC3);
        expect(setResponse.dataAccessResult).toBe(0x05);
        expect(setResponse.value).toEqual(bytes);
    });

    test("should return the correct byte array with getBytes()", () => {
        const bytes = [
            MessageType.SET_RESPONSE, // Message type
            0x01, // setType
            0xC3, // invokeIdAndPriority
            0x05, // dataAccessResult
        ];

        const setResponse = new SetResponse(bytes);

        const result = setResponse.getBytes();

        expect(result).toEqual(bytes);
    });

    test("should return the correct hexadecimal string with getHexString()", () => {
        const bytes = [
            MessageType.SET_RESPONSE, // Message type
            0x01, // setType
            0xC3, // invokeIdAndPriority
            0x05, // dataAccessResult
        ];

        const setResponse = new SetResponse(bytes);

        const hexString = setResponse.getHexString();
        const expectedHex = bytes
            .map(byte => byte.toString(16).toUpperCase().padStart(2, '0'))
            .join(' ');

        expect(hexString).toBe(expectedHex);
    });
});