public async void All() { Mock <ILogger <CountryRegionCurrencyRepository> > loggerMoc = CountryRegionCurrencyRepositoryMoc.GetLoggerMoc(); ApplicationDbContext context = CountryRegionCurrencyRepositoryMoc.GetContext(); var repository = new CountryRegionCurrencyRepository(loggerMoc.Object, context); CountryRegionCurrency entity = new CountryRegionCurrency(); context.Set <CountryRegionCurrency>().Add(entity); await context.SaveChangesAsync(); var record = await repository.All(); record.Should().NotBeEmpty(); }