public async void GetAsync_NotNull()
        {
            //Arrange
            PaymentApiWorker worker = new PaymentApiWorker();

            //Act
            List <Server.Database.Model.Payment> list = await worker.GetAsync();

            //Assert
            Assert.True(list != null);
        }
        public async void GetAsync_WithToken_NotNull()
        {
            //Arrange
            PaymentApiWorker worker = new PaymentApiWorker();
            string           token  = "pmt-28df87ac-2280-466c-a788-8151e6d6b179";

            //Act
            Server.Database.Model.Payment payment = await worker.GetAsync(token);

            //Assert
            Assert.True(payment != null);
        }