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diff --git a/packages/taler-wallet-cli/src/integrationtests/test-fee-regression.ts b/packages/taler-wallet-cli/src/integrationtests/test-fee-regression.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/>
+ */
+
+/**
+ * Imports.
+ */
+import {
+  GlobalTestState,
+  BankService,
+  ExchangeService,
+  MerchantService,
+  setupDb,
+  WalletCli,
+} from "./harness";
+import {
+  withdrawViaBank,
+  makeTestPayment,
+  SimpleTestEnvironment,
+} from "./helpers";
+
+/**
+ * Run a test case with a simple TESTKUDOS Taler environment, consisting
+ * of one exchange, one bank and one merchant.
+ */
+export async function createMyTestkudosEnvironment(
+  t: GlobalTestState,
+): Promise<SimpleTestEnvironment> {
+  const db = await setupDb(t);
+
+  const bank = await BankService.create(t, {
+    allowRegistrations: true,
+    currency: "TESTKUDOS",
+    database: db.connStr,
+    httpPort: 8082,
+  });
+
+  const exchange = ExchangeService.create(t, {
+    name: "testexchange-1",
+    currency: "TESTKUDOS",
+    httpPort: 8081,
+    database: db.connStr,
+  });
+
+  const merchant = await MerchantService.create(t, {
+    name: "testmerchant-1",
+    currency: "TESTKUDOS",
+    httpPort: 8083,
+    database: db.connStr,
+  });
+
+  const exchangeBankAccount = await bank.createExchangeAccount(
+    "MyExchange",
+    "x",
+  );
+  exchange.addBankAccount("1", exchangeBankAccount);
+
+  bank.setSuggestedExchange(exchange, exchangeBankAccount.accountPaytoUri);
+
+  await bank.start();
+
+  await bank.pingUntilAvailable();
+
+  const coinCommon = {
+    durationLegal: "3 years",
+    durationSpend: "2 years",
+    durationWithdraw: "7 days",
+    rsaKeySize: 1024,
+    feeDeposit: "TESTKUDOS:0.0025",
+    feeWithdraw: "TESTKUDOS:0",
+    feeRefresh: "TESTKUDOS:0",
+    feeRefund: "TESTKUDOS:0",
+  };
+
+  exchange.addCoinConfigList([
+    {
+      ...coinCommon,
+      name: "c1",
+      value: "TESTKUDOS:1.28",
+    },
+    {
+      ...coinCommon,
+      name: "c2",
+      value: "TESTKUDOS:0.64",
+    },
+    {
+      ...coinCommon,
+      name: "c3",
+      value: "TESTKUDOS:0.32",
+    },
+    {
+      ...coinCommon,
+      name: "c4",
+      value: "TESTKUDOS:0.16",
+    },
+    {
+      ...coinCommon,
+      name: "c5",
+      value: "TESTKUDOS:0.08",
+    },
+    {
+      ...coinCommon,
+      name: "c5",
+      value: "TESTKUDOS:0.04",
+    },
+    {
+      ...coinCommon,
+      name: "c6",
+      value: "TESTKUDOS:0.02",
+    },
+    {
+      ...coinCommon,
+      name: "c7",
+      value: "TESTKUDOS:0.01",
+    },
+  ]);
+
+  await exchange.start();
+  await exchange.pingUntilAvailable();
+
+  merchant.addExchange(exchange);
+
+  await merchant.start();
+  await merchant.pingUntilAvailable();
+
+  await merchant.addInstance({
+    id: "minst1",
+    name: "minst1",
+    paytoUris: ["payto://x-taler-bank/minst1"],
+  });
+
+  await merchant.addInstance({
+    id: "default",
+    name: "Default Instance",
+    paytoUris: [`payto://x-taler-bank/merchant-default`],
+  });
+
+  console.log("setup done!");
+
+  const wallet = new WalletCli(t);
+
+  return {
+    commonDb: db,
+    exchange,
+    merchant,
+    wallet,
+    bank,
+    exchangeBankAccount,
+  };
+}
+
+/**
+ * Run test for basic, bank-integrated withdrawal and payment.
+ */
+export async function runFeeRegressionTest(t: GlobalTestState) {
+  // Set up test environment
+
+  const {
+    wallet,
+    bank,
+    exchange,
+    merchant,
+  } = await createMyTestkudosEnvironment(t);
+
+  // Withdraw digital cash into the wallet.
+
+  await withdrawViaBank(t, {
+    wallet,
+    bank,
+    exchange,
+    amount: "TESTKUDOS:1.92",
+  });
+
+  const coins = await wallet.dumpCoins();
+
+  // Make sure we really withdraw one 0.64 and one 1.28 coin.
+  t.assertTrue(coins.coins.length === 2);
+
+  const order = {
+    summary: "Buy me!",
+    amount: "TESTKUDOS:1.30",
+    fulfillment_url: "taler://fulfillment-success/thx",
+  };
+
+  await makeTestPayment(t, { wallet, merchant, order });
+
+  await wallet.runUntilDone();
+
+  const txs = await wallet.getTransactions();
+  t.assertAmountEquals(txs.transactions[1].amountEffective, "TESTKUDOS:1.30");
+  console.log(txs);
+}