Jean-Luc Makiola
8d7a668da4
Auto-fixed formatting issues and removed unused imports introduced by background execution agents across currency, i18n, and sharing code. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
88 lines
2.5 KiB
TypeScript
88 lines
2.5 KiB
TypeScript
import { describe, expect, it } from "bun:test";
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import {
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CURRENCY_MARKET_MAP,
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convertPrice,
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type ExchangeRates,
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getMarketForCurrency,
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} from "../../src/server/services/currency.service";
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const mockRates: ExchangeRates = {
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base: "EUR",
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date: "2026-04-13",
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rates: {
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EUR: 1,
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USD: 1.08,
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GBP: 0.86,
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JPY: 163.5,
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CAD: 1.47,
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AUD: 1.65,
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},
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};
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describe("convertPrice", () => {
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it("returns same amount when from === to", () => {
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expect(convertPrice(1000, "EUR", "EUR", mockRates)).toBe(1000);
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expect(convertPrice(2500, "USD", "USD", mockRates)).toBe(2500);
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});
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it("converts EUR to USD correctly", () => {
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// 1000 EUR cents * 1.08 = 1080 USD cents
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expect(convertPrice(1000, "EUR", "USD", mockRates)).toBe(1080);
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});
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it("converts USD to EUR correctly", () => {
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// 1080 USD cents / 1.08 * 1 = 1000 EUR cents
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expect(convertPrice(1080, "USD", "EUR", mockRates)).toBe(1000);
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});
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it("converts between non-EUR currencies via EUR base", () => {
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// 1000 USD cents → EUR: 1000 / 1.08 = 925.926 → GBP: 925.926 * 0.86 = 796.296 → rounded 796
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expect(convertPrice(1000, "USD", "GBP", mockRates)).toBe(796);
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});
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it("rounds to nearest integer", () => {
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// 100 EUR cents * 1.08 = 108 USD cents (exact)
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expect(convertPrice(100, "EUR", "USD", mockRates)).toBe(108);
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// 100 EUR cents * 0.86 = 86 GBP cents (exact)
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expect(convertPrice(100, "EUR", "GBP", mockRates)).toBe(86);
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});
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it("returns original for unknown currency", () => {
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expect(convertPrice(1000, "EUR", "XYZ", mockRates)).toBe(1000);
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expect(convertPrice(1000, "XYZ", "EUR", mockRates)).toBe(1000);
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});
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});
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describe("CURRENCY_MARKET_MAP", () => {
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it("maps EUR to EU", () => {
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expect(CURRENCY_MARKET_MAP.EUR).toBe("EU");
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});
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it("maps USD to US", () => {
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expect(CURRENCY_MARKET_MAP.USD).toBe("US");
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});
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it("maps GBP to UK", () => {
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expect(CURRENCY_MARKET_MAP.GBP).toBe("UK");
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});
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it("maps all 6 supported currencies", () => {
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expect(Object.keys(CURRENCY_MARKET_MAP)).toHaveLength(6);
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expect(CURRENCY_MARKET_MAP.JPY).toBe("JP");
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expect(CURRENCY_MARKET_MAP.CAD).toBe("CA");
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expect(CURRENCY_MARKET_MAP.AUD).toBe("AU");
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});
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});
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describe("getMarketForCurrency", () => {
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it("returns mapped market for known currency", () => {
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expect(getMarketForCurrency("EUR")).toBe("EU");
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expect(getMarketForCurrency("USD")).toBe("US");
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expect(getMarketForCurrency("GBP")).toBe("UK");
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});
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it("returns currency itself for unknown currency", () => {
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expect(getMarketForCurrency("XYZ")).toBe("XYZ");
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});
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});
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