ojousima.ruuvi_endpoints.ts/src/__tests__/df3test.test.ts

Experiments with RuuviTags and TS

import { RuuviTagBroadcast } from '../ruuvitagbroadcast';
import { df3parser } from '../ruuvi_endpoint_3';

/* https://gist.github.com/tauzen/3d18825ae41ff3fc8981 */
function hexStringToByte(str: string): Uint8Array {
  if (!str) {
    return new Uint8Array(0);
  }

  let a: number[] = [];
  for (let i: number = 0, len = str.length; i < len; i += 2) {
    a.push(parseInt(str.substr(i, 2), 16));
  }

  return new Uint8Array(a);
}

test('test_df3decode_is_valid', () => {
  let data: Uint8Array = hexStringToByte('03291A1ECE1EFC18F94202CA0B53');
  let tag: RuuviTagBroadcast = df3parser(data);
  expect(tag.dataFormat).toBe(3);
  expect(tag.temperatureC).toBeCloseTo(26.3, 1);
  expect(tag.pressurePa).toBe(102766);
  expect(tag.humidityRh).toBeCloseTo(20.5, 1);
  expect(tag.batteryVoltageV).toBeCloseTo(2.899, 3);
  expect(tag.accelerationXG).toBeCloseTo(-1.0, 3);
  expect(tag.accelerationYG).toBeCloseTo(-1.726, 3);
  expect(tag.accelerationZG).toBeCloseTo(0.714, 3);
});

test('test_df3decode_is_valid_max_values', () => {
  let humidity: string = 'C8';
  let temp: string = '7F63';
  let pressure: string = 'FFFF';
  let accX: string = '03E8';
  let accY: string = '03E8';
  let accZ: string = '03E8';
  let batt: string = 'FFFF';
  let data: Uint8Array = hexStringToByte('03' + humidity + temp + pressure + accX + accY + accZ + batt);

  let tag: RuuviTagBroadcast = df3parser(data);
  expect(tag.dataFormat).toBe(3);
  expect(tag.temperatureC).toBeCloseTo(127.99, 2);
  expect(tag.pressurePa).toBe(115535);
  expect(tag.humidityRh).toBe(100.0);
  expect(tag.batteryVoltageV).toBeCloseTo(65.535, 3);
  expect(tag.accelerationXG).toBeCloseTo(1.0, 3);
  expect(tag.accelerationYG).toBeCloseTo(1.0, 3);
  expect(tag.accelerationZG).toBeCloseTo(1.0, 3);
});

test('test_df3decode_is_valid_min_values', () => {
  let humidity: string = '00';
  let temp: string = 'FF63';
  let pressure: string = '0000';
  let accX: string = 'FC18';
  let accY: string = 'FC18';
  let accZ: string = 'FC18';
  let batt: string = '0000';
  let data: Uint8Array = hexStringToByte('03' + humidity + temp + pressure + accX + accY + accZ + batt);

  let tag: RuuviTagBroadcast = df3parser(data);
  expect(tag.dataFormat).toBe(3);
  expect(tag.temperatureC).toBeCloseTo(-127.99, 2);
  expect(tag.pressurePa).toBe(50000);
  expect(tag.humidityRh).toBeCloseTo(0.0, 1);
  expect(tag.batteryVoltageV).toBeCloseTo(0, 1);
  expect(tag.accelerationXG).toBeCloseTo(-1.0, 3);
  expect(tag.accelerationYG).toBeCloseTo(-1.0, 3);
  expect(tag.accelerationZG).toBeCloseTo(-1.0, 3);
});