MagicMirror/tests/unit/functions/weather_object_spec.js

const WeatherObject = require("../../../modules/default/weather/weatherobject.js");
const WeatherUtils = require("../../../modules/default/weather/weatherutils.js");

global.moment = require("moment-timezone");
global.SunCalc = require("suncalc");

describe("WeatherObject", () => {
	let originalTimeZone;
	let weatherobject;

	beforeAll(() => {
		originalTimeZone = moment.tz.guess();
		moment.tz.setDefault("Africa/Dar_es_Salaam");
		weatherobject = new WeatherObject();
	});

	it("should return true for daytime at noon", () => {
		weatherobject.date = moment(12, "HH");
		weatherobject.updateSunTime(-6.774877582342688, 37.63345667023327);
		expect(weatherobject.isDayTime()).toBe(true);
	});

	it("should return false for daytime at midnight", () => {
		weatherobject.date = moment(0, "HH");
		weatherobject.updateSunTime(-6.774877582342688, 37.63345667023327);
		expect(weatherobject.isDayTime()).toBe(false);
	});

	afterAll(() => {
		moment.tz.setDefault(originalTimeZone);
	});
});

describe("WeatherObject", () => {
	it("should convert windspeed correctly from mph to mps", () => {
		expect(Math.round(WeatherUtils.convertWindToMetric(93.951324266285))).toBe(42);
	});

	it("should convert windspeed correctly from kmh to mps", () => {
		expect(Math.round(WeatherUtils.convertWindToMs(151.2))).toBe(42);
	});

	it("should convert wind direction correctly from cardinal to value", () => {
		expect(WeatherUtils.convertWindDirection("SSE")).toBe(157);
	});
});