public void AddPaymentMethodService_Test()
{
PaymentMethod payment = new PaymentMethod()
{
DecriptionPayment = "SomeText",
PaymentName = "SomeName"
};
bool item = service.AddItemAsync(payment).GetAwaiter().GetResult();
Assert.IsTrue(item);
var count = service.GetItemsAsync().GetAwaiter().GetResult().Count();
Assert.AreEqual(3, count);
}