public void GetTownByNameShouldReturnNull()
{
var options = new DbContextOptionsBuilder <FooteoDbContext>()
.UseInMemoryDatabase(databaseName: "GetTownByName_Towns_DB")
.Options;
var dbContext = new FooteoDbContext(options);
var townsService = new TownsService(dbContext);
townsService.CreateTown("Sofia");
var town = townsService.GetTownByName <Town>("Burgas");
Assert.Null(town);
}