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/*
This file is part of TALER
(C) 2017 Inria and GNUnet e.V.
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.
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
TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
*/
import test from "ava";
import * as dbTypes from "./types/dbTypes";
import * as types from "./types/walletTypes";
import * as wallet from "./wallet";
import { AmountJson } from "./util/amounts";
import * as Amounts from "./util/amounts";
import { selectPayCoins } from "./operations/pay";
function a(x: string): AmountJson {
const amt = Amounts.parse(x);
if (!amt) {
throw Error("invalid amount");
}
return amt;
}
function fakeCwd(
current: string,
value: string,
feeDeposit: string,
): types.CoinWithDenom {
return {
coin: {
blindingKey: "(mock)",
coinPriv: "(mock)",
coinPub: "(mock)",
currentAmount: a(current),
denomPub: "(mock)",
denomPubHash: "(mock)",
denomSig: "(mock)",
exchangeBaseUrl: "(mock)",
reservePub: "(mock)",
coinIndex: -1,
withdrawSessionId: "",
status: dbTypes.CoinStatus.Fresh,
},
denom: {
denomPub: "(mock)",
denomPubHash: "(mock)",
exchangeBaseUrl: "(mock)",
feeDeposit: a(feeDeposit),
feeRefresh: a("EUR:0.0"),
feeRefund: a("EUR:0.0"),
feeWithdraw: a("EUR:0.0"),
isOffered: true,
masterSig: "(mock)",
stampExpireDeposit: { t_ms: 0 },
stampExpireLegal: { t_ms: 0 },
stampExpireWithdraw: { t_ms: 0 },
stampStart: { t_ms: 0 },
status: dbTypes.DenominationStatus.VerifiedGood,
value: a(value),
},
};
}
test("coin selection 1", t => {
const cds: types.CoinWithDenom[] = [
fakeCwd("EUR:1.0", "EUR:1.0", "EUR:0.1"),
fakeCwd("EUR:1.0", "EUR:1.0", "EUR:0.0"),
];
const res = selectPayCoins([], cds, a("EUR:2.0"), a("EUR:0.1"));
if (!res) {
t.fail();
return;
}
t.true(res.cds.length === 2);
t.pass();
});
test("coin selection 2", t => {
const cds: types.CoinWithDenom[] = [
fakeCwd("EUR:1.0", "EUR:1.0", "EUR:0.5"),
fakeCwd("EUR:1.0", "EUR:1.0", "EUR:0.0"),
// Merchant covers the fee, this one shouldn't be used
fakeCwd("EUR:1.0", "EUR:1.0", "EUR:0.0"),
];
const res = selectPayCoins([], cds, a("EUR:2.0"), a("EUR:0.5"));
if (!res) {
t.fail();
return;
}
t.true(res.cds.length === 2);
t.pass();
});
test("coin selection 3", t => {
const cds: types.CoinWithDenom[] = [
fakeCwd("EUR:1.0", "EUR:1.0", "EUR:0.5"),
fakeCwd("EUR:1.0", "EUR:1.0", "EUR:0.5"),
// this coin should be selected instead of previous one with fee
fakeCwd("EUR:1.0", "EUR:1.0", "EUR:0.0"),
];
const res = selectPayCoins([], cds, a("EUR:2.0"), a("EUR:0.5"));
if (!res) {
t.fail();
return;
}
t.true(res.cds.length === 2);
t.pass();
});
test("coin selection 4", t => {
const cds: types.CoinWithDenom[] = [
fakeCwd("EUR:1.0", "EUR:1.0", "EUR:0.5"),
fakeCwd("EUR:1.0", "EUR:1.0", "EUR:0.5"),
fakeCwd("EUR:1.0", "EUR:1.0", "EUR:0.5"),
];
const res = selectPayCoins([], cds, a("EUR:2.0"), a("EUR:0.2"));
if (!res) {
t.fail();
return;
}
t.true(res.cds.length === 3);
t.pass();
});
test("coin selection 5", t => {
const cds: types.CoinWithDenom[] = [
fakeCwd("EUR:1.0", "EUR:1.0", "EUR:0.5"),
fakeCwd("EUR:1.0", "EUR:1.0", "EUR:0.5"),
fakeCwd("EUR:1.0", "EUR:1.0", "EUR:0.5"),
];
const res = selectPayCoins([], cds, a("EUR:4.0"), a("EUR:0.2"));
t.true(!res);
t.pass();
});
test("coin selection 6", t => {
const cds: types.CoinWithDenom[] = [
fakeCwd("EUR:1.0", "EUR:1.0", "EUR:0.5"),
fakeCwd("EUR:1.0", "EUR:1.0", "EUR:0.5"),
];
const res = selectPayCoins([], cds, a("EUR:2.0"), a("EUR:0.2"));
t.true(!res);
t.pass();
});
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