@applicaster/zapp-react-dom-app/App/Loader/utils/__tests__/pickBestMatchedLanguage.test.js

Zapp App Component for Applicaster's Quick Brick React Native App

import { pickBestMatchedLanguage } from "..";

describe("pickBestMatchedLanguage", () => {
  it("pick best matched language", () => {
    // setup
    const currentLanguage = "en-GB";
    const availableLanguages = ["en", "fr", "ru", "en-GB", "en-UK"];

    // verify
    expect(
      pickBestMatchedLanguage(currentLanguage, availableLanguages)
    ).toEqual("en-GB");
  });

  it("pick best matched language", () => {
    // setup
    const currentLanguage = "de-GB";
    const availableLanguages = ["en", "fr", "ru", "de"];

    // verify
    expect(
      pickBestMatchedLanguage(currentLanguage, availableLanguages)
    ).toEqual("de");
  });

  it("pick best matched language", () => {
    // setup
    const currentLanguage = "uk-GB";
    const availableLanguages = ["en", "fr", "ru", "de"];

    // verify
    expect(
      pickBestMatchedLanguage(currentLanguage, availableLanguages)
    ).toEqual("en");
  });

  it("pick best matched language", () => {
    // setup
    const currentLanguage = "fr";
    const availableLanguages = ["en", "fr", "ru", "de"];

    // verify
    expect(
      pickBestMatchedLanguage(currentLanguage, availableLanguages)
    ).toEqual("fr");
  });

  it("pick best matched language", () => {
    // setup
    const currentLanguage = "unknown_language";
    const availableLanguages = ["en", "fr", "ru", "de"];

    // verify
    expect(
      pickBestMatchedLanguage(currentLanguage, availableLanguages)
    ).toEqual("en");
  });
});