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/*
This file is part of GNU Taler
(C) 2022 Taler Systems S.A.
GNU Taler is free software; you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation; either version 3, or (at your option) any later version.
GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
*/
import {
AbsoluteTime,
AgeRestriction,
AmountJson,
Amounts,
DenomKeyType,
Duration,
TransactionAmountMode,
} from "@gnu-taler/taler-util";
import test, { ExecutionContext } from "ava";
import { testing_greedySelectPeer } from "./coinSelection.js"
type Tester<T> = {
deep: {
equal(another: T): ReturnType<ExecutionContext["deepEqual"]>;
equals(another: T): ReturnType<ExecutionContext["deepEqual"]>;
}
}
function expect<T>(t: ExecutionContext, thing: T): Tester<T> {
return {
deep: {
equal: (another: T) => t.deepEqual(thing, another),
equals: (another: T) => t.deepEqual(thing, another),
},
};
}
const inTheDistantFuture = AbsoluteTime.toProtocolTimestamp(
AbsoluteTime.addDuration(AbsoluteTime.now(), Duration.fromSpec({ hours: 1 }))
)
const inThePast = AbsoluteTime.toProtocolTimestamp(
AbsoluteTime.subtractDuraction(AbsoluteTime.now(), Duration.fromSpec({ hours: 1 }))
)
test("should select the coin", (t) => {
const instructedAmount = Amounts.parseOrThrow("LOCAL:2")
const tally = {
amountAcc: Amounts.zeroOfCurrency(instructedAmount.currency),
depositFeesAcc: Amounts.zeroOfCurrency(instructedAmount.currency),
lastDepositFee: Amounts.zeroOfCurrency(instructedAmount.currency),
};
const coins = testing_greedySelectPeer(
// candidates available
[{
"denomPub": {
"age_mask": 0,
"cipher": DenomKeyType.Rsa,
"rsa_public_key": "PPP"
},
"denomPubHash": "XXX",
"value": "LOCAL:10",
"feeDeposit": "LOCAL:0.1",
"feeRefresh": "LOCAL:0",
"feeRefund": "LOCAL:0",
"feeWithdraw": "LOCAL:0",
"stampExpireDeposit": inTheDistantFuture,
"stampExpireLegal": inTheDistantFuture,
"stampExpireWithdraw": inTheDistantFuture,
"stampStart": inThePast,
"exchangeBaseUrl": "http://exchange.localhost/",
"numAvailable": 5,
"maxAge": 32
}],
instructedAmount, tally);
expect(t, coins).deep.equal({
"XXX;32;http://exchange.localhost/": {
exchangeBaseUrl: "http://exchange.localhost/",
denomPubHash: "XXX",
maxAge: 32,
contributions: [Amounts.parseOrThrow("LOCAL:2")],
}
});
});
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