Kuma/tests/lib/billing-address.test.ts

import { describe, it, expect } from "vitest";
import {
  billingAddressFromCheckout,
  formatBillingAddressLines,
  readBillingAddress,
} from "@/src/lib/billing-address";

const details = {
  name: "Erika Mustermann",
  email: "erika@example.com",
  address: {
    line1: "Sandweg 91",
    line2: null,
    postal_code: "60316",
    city: "Frankfurt",
    country: "DE",
    state: null,
  },
};

describe("billingAddressFromCheckout", () => {
  it("übernimmt Name und Anschrift aus dem Checkout", () => {
    expect(billingAddressFromCheckout(details as never)).toEqual({
      name: "Erika Mustermann",
      line1: "Sandweg 91",
      line2: null,
      postalCode: "60316",
      city: "Frankfurt",
      country: "DE",
    });
  });

  it("liefert null, wenn die Anschrift unvollständig ist", () => {
    expect(
      billingAddressFromCheckout({
        ...details,
        address: { ...details.address, city: null },
      } as never)
    ).toBeNull();
    expect(billingAddressFromCheckout(null)).toBeNull();
  });
});

describe("readBillingAddress", () => {
  it("verwirft gespeicherte Werte, denen Pflichtteile fehlen", () => {
    expect(readBillingAddress({ line1: "Sandweg 91", city: "Frankfurt" })).toBeNull();
    expect(readBillingAddress(null)).toBeNull();
    expect(readBillingAddress("Sandweg 91")).toBeNull();
  });
});

describe("formatBillingAddressLines", () => {
  it("lässt Deutschland weg und nennt andere Länder", () => {
    const de = billingAddressFromCheckout(details as never)!;
    expect(formatBillingAddressLines(de)).toEqual(["Sandweg 91", "60316 Frankfurt"]);
    expect(
      formatBillingAddressLines({ ...de, country: "AT", postalCode: "1010", city: "Wien" })
    ).toEqual(["Sandweg 91", "1010 Wien", "Österreich"]);
  });
});