import { parseHeartRateMeasurement } from '../src/ble/heartRateParser';

describe('parseHeartRateMeasurement', () => {
  it('parses 8-bit BPM payloads', () => {
    expect(parseHeartRateMeasurement([0x00, 154])).toMatchObject({
      bpm: 154,
      contactSupported: false,
      contactDetected: null,
      energyExpended: null,
      rrIntervalsMs: [],
    });
  });

  it('parses 16-bit BPM payloads', () => {
    expect(parseHeartRateMeasurement([0x01, 0x2c, 0x01]).bpm).toBe(300);
  });

  it('parses contact, energy and RR interval data', () => {
    const parsed = parseHeartRateMeasurement([
      0x1e, 160, 0x10, 0x00, 0x00, 0x04,
    ]);

    expect(parsed.bpm).toBe(160);
    expect(parsed.contactSupported).toBe(true);
    expect(parsed.contactDetected).toBe(true);
    expect(parsed.energyExpended).toBe(16);
    expect(parsed.rrIntervalsMs).toEqual([1000]);
  });
});