public async Task <IEnumerable <BasketItem> > GetAllBasketProducts()
{
try
{
await _semaphorePool.WaitAsync();
Dictionary <int, int> productList = null;
string productIdsJson = await _localStorageService.GetItemAsStringAsync("productIds");
if (productIdsJson == null)
{
_semaphorePool.Release();
return(Enumerable.Empty <BasketItem>());
}
productList = JsonConvert.DeserializeObject <Dictionary <int, int> >(productIdsJson);
_semaphorePool.Release();
return(productList.Select(x => new BasketItem()
{
ProductId = x.Key, Amount = x.Value
}).ToList());
}
catch (Exception e)
{
return(Enumerable.Empty <BasketItem>());
}
}
public void ThrowsArgumentNullException_When_KeyIsInvalid(string key)
{
// arrange / act
var action = new Func <Task>(async() => await _sut.GetItemAsStringAsync(key));
// assert
Assert.ThrowsAsync <ArgumentNullException>(action);
}
public async Task <string> AuthenticationToken()
{
return(await _localStorageService.GetItemAsStringAsync("token"));
}