import { getSeparators } from "./localeUtility";

describe("localeUtility", () => {
  test("getSeparators with known locale in staticFallback", () => {
    const result = getSeparators("en");
    expect(result.decimal).toBe(".");
    expect(result.thousands).toBe(",");
  });

  test("getSeparators with locale not in staticFallback", () => {
    // Test locales not in staticFallback (en, es, fr, ja, ko, ru, zh are in the list)
    // Line 18: fallback when hasOwnProperty returns false - uses "en" fallback
    // The getFallback function checks if locale is in staticFallback, if not uses "en"
    const result = getSeparators("it");
    expect(result.decimal).toBeDefined();
    expect(result.thousands).toBeDefined();
  });

  test("getFallback uses en when locale not in staticFallback - tests line 18", () => {
    // Line 18: staticFallback[hasOwnProperty(...) ? locale : "en"]
    // When hasOwnProperty returns false, uses "en" as fallback
    // This branch is only hit when localeNotAvailable is true AND locale not in staticFallback
    // Test with valid locale not in staticFallback (it, de, nl, etc.)
    const result = getSeparators("de");
    expect(result.decimal).toBeDefined();
    expect(result.thousands).toBeDefined();
  });
});