wehub-resource-sync
80 lines
2.4 KiB
TypeScript
80 lines
2.4 KiB
TypeScript
import { describe, it, expect } from "vitest";
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import { getWeatherImpl } from "../get-weather";
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describe("getWeatherImpl", () => {
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it("returns all required fields", () => {
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const result = getWeatherImpl("Tokyo");
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expect(result).toHaveProperty("city");
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expect(result).toHaveProperty("temperature");
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expect(result).toHaveProperty("humidity");
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expect(result).toHaveProperty("wind_speed");
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expect(result).toHaveProperty("feels_like");
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expect(result).toHaveProperty("conditions");
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});
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it("passes city name through", () => {
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expect(getWeatherImpl("San Francisco").city).toBe("San Francisco");
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});
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it("is deterministic for the same city", () => {
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const r1 = getWeatherImpl("Tokyo");
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const r2 = getWeatherImpl("Tokyo");
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expect(r1.temperature).toBe(r2.temperature);
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expect(r1.conditions).toBe(r2.conditions);
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});
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it("produces different results for different cities", () => {
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const r1 = getWeatherImpl("Tokyo");
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const r2 = getWeatherImpl("London");
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expect(r1).not.toEqual(r2);
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});
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it("temperature is within expected range (20-95)", () => {
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const result = getWeatherImpl("Berlin");
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expect(result.temperature).toBeGreaterThanOrEqual(20);
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expect(result.temperature).toBeLessThanOrEqual(95);
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});
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it("humidity is within expected range (30-90)", () => {
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const result = getWeatherImpl("Paris");
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expect(result.humidity).toBeGreaterThanOrEqual(30);
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expect(result.humidity).toBeLessThanOrEqual(90);
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});
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it("wind_speed is within expected range (2-30)", () => {
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const result = getWeatherImpl("Sydney");
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expect(result.wind_speed).toBeGreaterThanOrEqual(2);
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expect(result.wind_speed).toBeLessThanOrEqual(30);
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});
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it("conditions is one of the known values", () => {
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const known = [
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"Sunny",
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"Partly Cloudy",
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"Cloudy",
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"Overcast",
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"Light Rain",
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"Heavy Rain",
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"Thunderstorm",
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"Snow",
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"Foggy",
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"Windy",
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];
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const result = getWeatherImpl("Miami");
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expect(known).toContain(result.conditions);
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});
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it("is case-insensitive for seed (lowercased internally)", () => {
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const r1 = getWeatherImpl("tokyo");
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const r2 = getWeatherImpl("TOKYO");
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expect(r1.temperature).toBe(r2.temperature);
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});
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it("feels_like is within ±5 of temperature", () => {
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const result = getWeatherImpl("Berlin");
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expect(
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Math.abs(result.feels_like - result.temperature),
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).toBeLessThanOrEqual(5);
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});
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});
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