public async Task TestCharge()
{
var service = new BalanceService(MockTokenClaimsAccessor(cjdlqTokenClaims), db);
var resp = await service.GetBalance(new Protos.Balance.GetBalanceRequest {
}, TestContext);
Assert.Equal(10, resp.Balance);
var resp2 = await service.Charge(new Protos.Balance.ChargeRequest {
Amount = 30
}, TestContext);
Assert.Equal(40, resp2.Balance);
Assert.Single(cjd.ReceivedUserTransactions);
var transaction = cjd.ReceivedUserTransactions.First();
Assert.Equal(30, transaction.Amount);
Assert.Equal(cjd, transaction.Receiver);
Assert.Null(transaction.Payer);
Assert.Equal(new TransactionReason(TransactionType.Charge, ""), transaction.Reason);
}