public async Task DeleteByCountryIdWorksCorrectly()
{
var options = new DbContextOptionsBuilder <ApplicationDbContext>()
.UseInMemoryDatabase(databaseName: Guid.NewGuid().ToString()).Options;
var dbContext = new ApplicationDbContext(options);
var addressesService = new Mock <IAddressesService>();
var repository = new EfDeletableEntityRepository <City>(dbContext);
var service = new CitiesService(repository, addressesService.Object);
var city = new City()
{
Id = 1,
CountryId = 1,
};
var city2 = new City()
{
Id = 2,
CountryId = 1,
};
var city3 = new City()
{
Id = 3,
CountryId = 2,
};
dbContext.Add(city);
dbContext.Add(city2);
dbContext.Add(city3);
await dbContext.SaveChangesAsync();
await service.DeleteByCountryIdAsync(1);
var citiesInDb = dbContext.Cities.ToList();
Assert.Single(citiesInDb);
}