1 files changed, 86 insertions, 0 deletions
diff --git a/packages/taler-harness/src/integrationtests/test-forced-selection.ts b/packages/taler-harness/src/integrationtests/test-forced-selection.ts
new file mode 100644
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--- /dev/null
+++ b/packages/taler-harness/src/integrationtests/test-forced-selection.ts
@@ -0,0 +1,86 @@
+/*
+ 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/>
+ */
+
+/**
+ * Imports.
+ */
+import { AmountString, j2s } from "@gnu-taler/taler-util";
+import { WalletApiOperation } from "@gnu-taler/taler-wallet-core";
+import { GlobalTestState } from "../harness/harness.js";
+import { createSimpleTestkudosEnvironmentV2 } from "../harness/helpers.js";
+
+/**
+ * Run test for forced denom/coin selection.
+ */
+export async function runForcedSelectionTest(t: GlobalTestState) {
+  // Set up test environment
+
+  const { walletClient, bank, exchange, merchant } =
+    await createSimpleTestkudosEnvironmentV2(t);
+
+  await walletClient.call(WalletApiOperation.AddExchange, {
+    exchangeBaseUrl: exchange.baseUrl,
+  });
+
+  await walletClient.call(WalletApiOperation.WithdrawTestBalance, {
+    exchangeBaseUrl: exchange.baseUrl,
+    amount: "TESTKUDOS:10" as AmountString,
+    corebankApiBaseUrl: bank.corebankApiBaseUrl,
+    forcedDenomSel: {
+      denoms: [
+        {
+          value: "TESTKUDOS:2" as AmountString,
+          count: 3,
+        },
+      ],
+    },
+  });
+
+  await walletClient.call(WalletApiOperation.TestingWaitTransactionsFinal, {});
+
+  const coinDump = await walletClient.call(WalletApiOperation.DumpCoins, {});
+  console.log(coinDump);
+  t.assertDeepEqual(coinDump.coins.length, 3);
+
+  const payResp = await walletClient.call(WalletApiOperation.TestPay, {
+    amount: "TESTKUDOS:3" as AmountString,
+    merchantBaseUrl: merchant.makeInstanceBaseUrl(),
+    summary: "bla",
+    forcedCoinSel: {
+      coins: [
+        {
+          value: "TESTKUDOS:2" as AmountString,
+          contribution: "TESTKUDOS:1" as AmountString,
+        },
+        {
+          value: "TESTKUDOS:2" as AmountString,
+          contribution: "TESTKUDOS:1" as AmountString,
+        },
+        {
+          value: "TESTKUDOS:2" as AmountString,
+          contribution: "TESTKUDOS:1" as AmountString,
+        },
+      ],
+    },
+  });
+
+  console.log(j2s(payResp));
+
+  // Without forced selection, we would only use 2 coins.
+  t.assertDeepEqual(payResp.numCoins, 3);
+}
+
+runForcedSelectionTest.suites = ["wallet"];