I dont seem to find any good article for testing things in app.module.ts I recently using ngx-translate library and I have the code in app.module.ts

I am wondering how to write test against code in app.module.ts The Sonar cloud always complain about test coverage. I don't find a way to test the code in app.module.ts Only way just move all these to share lib

import { Observable, of } from "rxjs";
const enLang = require("../assets/i18n/en-US.json");
const frLang = require("../assets/i18n/fr-FR.json");

const languages = {
  "en-US": enLang,
  "fr-FR": frLang,
}

class JsonLoader implements TranslateLoader {
  getTranslation(lang: string): Observable<any> {
    return of(languages[lang]);
  }
}

@NgModule({
  declarations:
    [AppComponent],
  imports: [
    TranslateModule.forRoot({
      loader: { provide: TranslateLoader, useClass: JsonLoader }
    }),
  ],