using the library with jest

[ghost]

how can i get its value for a service test by jest

[itinance]

I found a way to pass the I18nService into my services and on their corresponding unit-tests, I do:

    const module: TestingModule = await Test.createTestingModule({
      imports: [
        I18nModule.forRoot({
          fallbackLanguage: 'en-US',
          loaderOptions: {
            path: path.join(__dirname, '../locales'),
            watch: true,
          },
          resolvers: [{ use: QueryResolver, options: ['lang'] }],
        }),
      ],
      providers: [ExampleService],
    }).compile();

The drawback is that the translation can't be tested because the resolver won't work at this level. It will only return the passed key (although in the "normal" app-launch-mode, it all works), details here #495