EasyBike.Models.ContractService.GetCountries C# (CSharp) Method

        public List<Country> GetCountries()
        {
            return ContractList.Countries;
        }

        public async void CheckAllContractsAvailability()
        {
            SimpleIoc.Default.Register<IConfigService, ConfigService>();
            var contractService = new ContractService(null, new StorageService());
            var failFlag = false;
            int failCounter = 0;
            int counter = 0;
            await contractService.GetCountries().SelectAsync(async country =>
            {
                await country.Contracts.SelectAsync(async contract =>
                {
                    counter++;
                    try
                    {
                        var stations = await contract.GetStationsAsync();
                        Assert.Greater(stations.Count, 0);
                        if (stations.Count == 0)
                        {
                            failCounter++;
                        }
                        if (stations.Count > 0)
                        {
                            Assert.AreNotEqual(stations.FirstOrDefault().Latitude, 0);
                            if (stations.FirstOrDefault().Latitude == 0)
                                failCounter++;
                        }
                    }
                    catch (Exception e)
                    {
                        failFlag = true;
                        failCounter++;
                        Debug.WriteLine("FAILED : " + contract.Name + " (" + contract.ServiceProvider + " / " + country + ") : " + e.Message);
                    }
                    return true;
                });
                return true;
            });

            Debug.WriteLine("FAILED " + failCounter + " / " + counter);
            Assert.IsFalse(failFlag);
        }