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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 { AmountJson } from "./util/amounts";
import * as Amounts from "./util/amounts";
import { selectPayCoins, AvailableCoinInfo } from "./operations/pay";
function a(x: string): AmountJson {
const amt = Amounts.parse(x);
if (!amt) {
throw Error("invalid amount");
}
return amt;
}
function fakeAci(
current: string,
feeDeposit: string,
): AvailableCoinInfo {
return {
availableAmount: a(current),
coinPub: "foobar",
denomPub: "foobar",
feeDeposit: a(feeDeposit),
}
}
test("coin selection 1", t => {
const acis: AvailableCoinInfo[] = [
fakeAci("EUR:1.0", "EUR:0.1"),
fakeAci("EUR:1.0", "EUR:0.0"),
];
const res = selectPayCoins(acis, a("EUR:2.0"), a("EUR:0.1"));
if (!res) {
t.fail();
return;
}
t.true(res.coinPubs.length === 2);
t.pass();
});
test("coin selection 2", t => {
const acis: AvailableCoinInfo[] = [
fakeAci("EUR:1.0", "EUR:0.5"),
fakeAci("EUR:1.0", "EUR:0.0"),
// Merchant covers the fee, this one shouldn't be used
fakeAci("EUR:1.0", "EUR:0.0"),
];
const res = selectPayCoins(acis, a("EUR:2.0"), a("EUR:0.5"));
if (!res) {
t.fail();
return;
}
t.true(res.coinPubs.length === 2);
t.pass();
});
test("coin selection 3", t => {
const acis: AvailableCoinInfo[] = [
fakeAci("EUR:1.0", "EUR:0.5"),
fakeAci("EUR:1.0", "EUR:0.5"),
// this coin should be selected instead of previous one with fee
fakeAci("EUR:1.0", "EUR:0.0"),
];
const res = selectPayCoins(acis, a("EUR:2.0"), a("EUR:0.5"));
if (!res) {
t.fail();
return;
}
t.true(res.coinPubs.length === 2);
t.pass();
});
test("coin selection 4", t => {
const acis: AvailableCoinInfo[] = [
fakeAci("EUR:1.0", "EUR:0.5"),
fakeAci("EUR:1.0", "EUR:0.5"),
fakeAci("EUR:1.0", "EUR:0.5"),
];
const res = selectPayCoins(acis, a("EUR:2.0"), a("EUR:0.5"));
if (!res) {
t.fail();
return;
}
t.true(res.coinPubs.length === 3);
t.pass();
});
test("coin selection 5", t => {
const acis: AvailableCoinInfo[] = [
fakeAci("EUR:1.0", "EUR:0.5"),
fakeAci("EUR:1.0", "EUR:0.5"),
fakeAci("EUR:1.0", "EUR:0.5"),
];
const res = selectPayCoins(acis, a("EUR:4.0"), a("EUR:0.2"));
t.true(!res);
t.pass();
});
test("coin selection 6", t => {
const acis: AvailableCoinInfo[] = [
fakeAci("EUR:1.0", "EUR:0.5"),
fakeAci("EUR:1.0", "EUR:0.5"),
];
const res = selectPayCoins(acis, a("EUR:2.0"), a("EUR:0.2"));
t.true(!res);
t.pass();
});
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