dlms-protocol/tests/Boolean.test.js

DLMS Protocol parser for JavaScript

import DlmsDataType from "../src/enum/DlmsDataType";
import Boolean from "../src/typesDLMS/Boolean";

describe("Boolean class", () => {
    test("should initialize with default values when no data is provided", () => {
        const booleanInstance = new Boolean();

        expect(booleanInstance.tag).toBe(DlmsDataType.BOOLEAN);
        expect(booleanInstance.totalBytes).toBe(0);
        expect(booleanInstance.rawValue).toEqual([]);
        expect(booleanInstance.bodyBytes).toEqual([]);
        expect(booleanInstance.value).toBeNull();
    });

    test("should initialize and parse data correctly when valid data is provided", () => {
        const data = [DlmsDataType.BOOLEAN, 1];
        const booleanInstance = new Boolean(data);

        expect(booleanInstance.tag).toBe(DlmsDataType.BOOLEAN);
        expect(booleanInstance.totalBytes).toBe(2);
        expect(booleanInstance.rawValue).toEqual([DlmsDataType.BOOLEAN, 1]);
        expect(booleanInstance.bodyBytes).toEqual([1]);
        expect(booleanInstance.value).toBe(1);
    });

    test("should throw an error if tag does not match when inserting data", () => {
        const data = [0xFF, 1]; // Invalid tag
        const booleanInstance = new Boolean();

        expect(() => booleanInstance.insertData(data)).toThrow("Tag mismatch.");
    });

    test("should correctly insert data when the tag matches", () => {
        const data = [DlmsDataType.BOOLEAN, 0];
        const booleanInstance = new Boolean();

        booleanInstance.insertData(data);

        expect(booleanInstance.totalBytes).toBe(2);
        expect(booleanInstance.rawValue).toEqual([DlmsDataType.BOOLEAN, 0]);
        expect(booleanInstance.bodyBytes).toEqual([0]);
        expect(booleanInstance.value).toBe(0);
    });

    test("should return the correct value with getValue()", () => {
        const data = [DlmsDataType.BOOLEAN, 1];
        const booleanInstance = new Boolean(data);

        expect(booleanInstance.getValue()).toBe(1);
    });

    test("should throw an error if getStandardLength() is called", () => {
        const booleanInstance = new Boolean();

        expect(() => booleanInstance.getStandardLength()).toThrow("Method not implemented.");
    });
});