@jbroll/nmea-simple/tests/VTGtest.ts

NMEA 0183 sentence parser and encoder

import "should";

import { encodeNmeaPacket, parseNmeaSentence } from "../index";


describe("VTG", (): void => {

  it("parser", (): void => {
    const packet = parseNmeaSentence("$IIVTG,210.43,T,210.43,M,5.65,N,,,A*67");

    packet.should.have.property("sentenceId", "VTG");
    packet.should.have.property("sentenceName", "Track made good and ground speed");
    packet.should.have.property("talkerId", "II");
    packet.should.have.property("trackTrue", 210.43);
    packet.should.have.property("trackMagnetic", 210.43);
    packet.should.have.property("speedKnots", 5.65);
    packet.should.have.property("speedKmph", 0);
    packet.should.have.property("faaMode", "A");
  });

  it("encodes (with KM/H)", (): void => {
    const sentence = encodeNmeaPacket({
      sentenceId: "VTG",
      trackTrue: 210.43,
      trackMagnetic: 209.43,
      speedKnots: 2.91,
      speedKmph: 5.38,
      faaMode: "A"
    }, "XX");

    sentence.should.equal("$XXVTG,210.43,T,209.43,M,2.91,N,5.38,K,A*38");
  });

  it("encodes (without KM/H)", (): void => {
    const sentence = encodeNmeaPacket({
      sentenceId: "VTG",
      trackTrue: 210.43,
      trackMagnetic: 209.43,
      speedKnots: 2.91,
      faaMode: "A"
    }, "XX");

    sentence.should.equal("$XXVTG,210.43,T,209.43,M,2.91,N,,,A*63");
  });

});