public async Task Should_ReturnFalse_IfDoesntExist() { //arrange string cityName1 = "testName1"; var mockCountryService = new Mock <ICountryService>().Object; var options = TestUtilities.GetOptions(nameof(Should_ReturnFalse_IfDoesntExist)); using (var actContext = new CocktailDatabaseContext(options)) { var sut = new CityService(actContext, mockCountryService); var checkIfExist = await sut.CheckIfCityExistsAsync(cityName1); Assert.AreEqual(false, checkIfExist); } }