@applicaster/zapp-react-native-utils/appUtils/__tests__/localizationsHelper.test.ts

Applicaster Zapp React Native utilities package

jest.mock("@applicaster/zapp-react-native-redux/AppStore", () => ({
  appStore: {
    get: jest.fn(() => ({ languageCode: "en", countryLocale: "GB" })),
  },
}));

const {
  getLocale,
  getLanguageCode,
  getCountryCode,
  toDayJSLocaleMap,
} = require("../localizationsHelper");

describe("getLocale", () => {
  it("returns correct locale from window.navigator object", () => {
    const locale = "en-gb";
    global.window = { navigator: { language: locale } };
    const expectedValue = locale;
    const currentValue = getLocale();

    expect(currentValue).toEqual(expectedValue);
  });

  it("returns locale in lower case", () => {
    const locale = "EN-GB";
    global.window = { navigator: { language: locale } };
    const expectedValue = "en-gb";
    const currentValue = getLocale();

    expect(currentValue).toEqual(expectedValue);
  });
});

describe("getLanguageCode", () => {
  it("returns correct language code from window.navigator object", () => {
    const locale = "en-gb";
    global.window = { navigator: { language: locale } };
    const expectedValue = "en";
    const currentValue = getLanguageCode();

    expect(currentValue).toEqual(expectedValue);
  });

  it("returns language code in lower case", () => {
    const locale = "EN-GB";
    global.window = { navigator: { language: locale } };
    const expectedValue = "en";
    const currentValue = getLanguageCode();

    expect(currentValue).toEqual(expectedValue);
  });
});

describe("getCountryCode", () => {
  it("returns correct country code from window.navigator object", () => {
    const locale = "en-gb";
    global.window = { navigator: { language: locale } };
    const expectedValue = "gb";
    const currentValue = getCountryCode();

    expect(currentValue).toEqual(expectedValue);
  });

  it("returns country code in lower case", () => {
    const locale = "EN-GB";
    global.window = { navigator: { language: locale } };
    const expectedValue = "gb";
    const currentValue = getCountryCode();

    expect(currentValue).toEqual(expectedValue);
  });
});

describe("toDayJSLocaleMap", () => {
  const allZappLocales: string[] = require("./allZappLocales").default;

  it.each(allZappLocales)("[%s] returns a valid dayjs locale", (locale) => {
    const dayJSLocale = toDayJSLocaleMap(locale);
    expect(dayJSLocale).toBeDefined();
    expect(dayJSLocale).toMatchSnapshot();
  });
});