@node-lightning/wire/__tests__/messages/PingMessage.spec.ts

Lightning Network Wire Protocol

// tslint:disable: no-unused-expression
import { expect } from "chai";
import { PingMessage } from "../../lib/messages/PingMessage";

describe("PingMessage", () => {
    describe("get .triggersReply", () => {
        it("should be true when less than 65532", () => {
            const sut = new PingMessage();
            sut.numPongBytes = 1;
            expect(sut.triggersReply).to.be.true;
        });

        it("should be false when greater than 65531", () => {
            const sut = new PingMessage();
            sut.numPongBytes = 65532;
            expect(sut.triggersReply).to.be.false;
        });
    });

    describe(".serialize", () => {
        it("should serialize with num_pong_bytes", () => {
            const sut = new PingMessage();
            sut.numPongBytes = 12;
            expect(sut.serialize()).to.deep.equal(Buffer.from([0, 18, 0, 12, 0, 0]));
        });

        it("should serialize with ignored bytes", () => {
            const sut = new PingMessage();
            sut.numPongBytes = 1;
            sut.ignored = Buffer.alloc(2);
            expect(sut.serialize()).to.deep.equal(Buffer.from([0, 18, 0, 1, 0, 2, 0, 0]));
        });
    });

    describe(".deserialize", () => {
        it("should deserialize type 18", () => {
            const result = PingMessage.deserialize(Buffer.from([0, 18, 0, 12, 0, 0]));
            expect(result.type).to.equal(18);
        });

        it("should deserialize num_pong_bytes", () => {
            const result = PingMessage.deserialize(Buffer.from([0, 18, 0, 12, 0, 0]));
            expect(result.numPongBytes).to.equal(12);
        });

        it("should deserialize ignored", () => {
            const result = PingMessage.deserialize(Buffer.from([0, 18, 0, 1, 0, 2, 0, 0]));
            expect(result.ignored).to.deep.equal(Buffer.alloc(2));
        });
    });
});