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diff --git a/packages/taler-wallet-core/src/util/amounts-test.ts b/packages/taler-wallet-core/src/util/amounts-test.ts
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--- a/packages/taler-wallet-core/src/util/amounts-test.ts
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-/*
- This file is part of GNU Taler
- (C) 2020 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 test from "ava";
-
-import { Amounts, AmountJson } from "../util/amounts";
-
-const jAmt = (
- value: number,
- fraction: number,
- currency: string,
-): AmountJson => ({ value, fraction, currency });
-
-const sAmt = (s: string): AmountJson => Amounts.parseOrThrow(s);
-
-test("amount addition (simple)", (t) => {
- const a1 = jAmt(1, 0, "EUR");
- const a2 = jAmt(1, 0, "EUR");
- const a3 = jAmt(2, 0, "EUR");
- t.true(0 === Amounts.cmp(Amounts.add(a1, a2).amount, a3));
- t.pass();
-});
-
-test("amount addition (saturation)", (t) => {
- const a1 = jAmt(1, 0, "EUR");
- const res = Amounts.add(jAmt(Amounts.maxAmountValue, 0, "EUR"), a1);
- t.true(res.saturated);
- t.pass();
-});
-
-test("amount subtraction (simple)", (t) => {
- const a1 = jAmt(2, 5, "EUR");
- const a2 = jAmt(1, 0, "EUR");
- const a3 = jAmt(1, 5, "EUR");
- t.true(0 === Amounts.cmp(Amounts.sub(a1, a2).amount, a3));
- t.pass();
-});
-
-test("amount subtraction (saturation)", (t) => {
- const a1 = jAmt(0, 0, "EUR");
- const a2 = jAmt(1, 0, "EUR");
- let res = Amounts.sub(a1, a2);
- t.true(res.saturated);
- res = Amounts.sub(a1, a1);
- t.true(!res.saturated);
- t.pass();
-});
-
-test("amount comparison", (t) => {
- t.is(Amounts.cmp(jAmt(1, 0, "EUR"), jAmt(1, 0, "EUR")), 0);
- t.is(Amounts.cmp(jAmt(1, 1, "EUR"), jAmt(1, 0, "EUR")), 1);
- t.is(Amounts.cmp(jAmt(1, 1, "EUR"), jAmt(1, 2, "EUR")), -1);
- t.is(Amounts.cmp(jAmt(1, 0, "EUR"), jAmt(0, 0, "EUR")), 1);
- t.is(Amounts.cmp(jAmt(0, 0, "EUR"), jAmt(1, 0, "EUR")), -1);
- t.is(Amounts.cmp(jAmt(1, 0, "EUR"), jAmt(0, 100000000, "EUR")), 0);
- t.throws(() => Amounts.cmp(jAmt(1, 0, "FOO"), jAmt(1, 0, "BAR")));
- t.pass();
-});
-
-test("amount parsing", (t) => {
- t.is(
- Amounts.cmp(Amounts.parseOrThrow("TESTKUDOS:0"), jAmt(0, 0, "TESTKUDOS")),
- 0,
- );
- t.is(
- Amounts.cmp(Amounts.parseOrThrow("TESTKUDOS:10"), jAmt(10, 0, "TESTKUDOS")),
- 0,
- );
- t.is(
- Amounts.cmp(
- Amounts.parseOrThrow("TESTKUDOS:0.1"),
- jAmt(0, 10000000, "TESTKUDOS"),
- ),
- 0,
- );
- t.is(
- Amounts.cmp(
- Amounts.parseOrThrow("TESTKUDOS:0.00000001"),
- jAmt(0, 1, "TESTKUDOS"),
- ),
- 0,
- );
- t.is(
- Amounts.cmp(
- Amounts.parseOrThrow("TESTKUDOS:4503599627370496.99999999"),
- jAmt(4503599627370496, 99999999, "TESTKUDOS"),
- ),
- 0,
- );
- t.throws(() => Amounts.parseOrThrow("foo:"));
- t.throws(() => Amounts.parseOrThrow("1.0"));
- t.throws(() => Amounts.parseOrThrow("42"));
- t.throws(() => Amounts.parseOrThrow(":1.0"));
- t.throws(() => Amounts.parseOrThrow(":42"));
- t.throws(() => Amounts.parseOrThrow("EUR:.42"));
- t.throws(() => Amounts.parseOrThrow("EUR:42."));
- t.throws(() => Amounts.parseOrThrow("TESTKUDOS:4503599627370497.99999999"));
- t.is(
- Amounts.cmp(
- Amounts.parseOrThrow("TESTKUDOS:0.99999999"),
- jAmt(0, 99999999, "TESTKUDOS"),
- ),
- 0,
- );
- t.throws(() => Amounts.parseOrThrow("TESTKUDOS:0.999999991"));
- t.pass();
-});
-
-test("amount stringification", (t) => {
- t.is(Amounts.stringify(jAmt(0, 0, "TESTKUDOS")), "TESTKUDOS:0");
- t.is(Amounts.stringify(jAmt(4, 94000000, "TESTKUDOS")), "TESTKUDOS:4.94");
- t.is(Amounts.stringify(jAmt(0, 10000000, "TESTKUDOS")), "TESTKUDOS:0.1");
- t.is(Amounts.stringify(jAmt(0, 1, "TESTKUDOS")), "TESTKUDOS:0.00000001");
- t.is(Amounts.stringify(jAmt(5, 0, "TESTKUDOS")), "TESTKUDOS:5");
- // denormalized
- t.is(Amounts.stringify(jAmt(1, 100000000, "TESTKUDOS")), "TESTKUDOS:2");
- t.pass();
-});
-
-test("amount multiplication", (t) => {
- t.is(Amounts.stringify(Amounts.mult(sAmt("EUR:1.11"), 0).amount), "EUR:0");
- t.is(Amounts.stringify(Amounts.mult(sAmt("EUR:1.11"), 1).amount), "EUR:1.11");
- t.is(Amounts.stringify(Amounts.mult(sAmt("EUR:1.11"), 2).amount), "EUR:2.22");
- t.is(Amounts.stringify(Amounts.mult(sAmt("EUR:1.11"), 3).amount), "EUR:3.33");
- t.is(Amounts.stringify(Amounts.mult(sAmt("EUR:1.11"), 4).amount), "EUR:4.44");
- t.is(Amounts.stringify(Amounts.mult(sAmt("EUR:1.11"), 5).amount), "EUR:5.55");
-});