taler-typescript-core

commit 1c55dd0696445b26d3fb5908284a576de5c37390
parent 4a9cb7196f9bb85bc8e2b3e46f3db57ed5b103db
Author: Florian Dold <dold@taler.net>
Date:   Wed, 22 Jul 2026 00:29:14 +0200

wallet: test the paivana template amount override

Check that a non-editable amount from the URI replaces the amount of the
simple choices in the same currency, and leaves choices in another
currency or with inputs untouched.

Diffstat:
A
packages/taler-wallet-core/src/pay-template.test.ts
 | 
86
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

1 file changed, 86 insertions(+), 0 deletions(-)
diff --git a/packages/taler-wallet-core/src/pay-template.test.ts b/packages/taler-wallet-core/src/pay-template.test.ts
@@ -0,0 +1,86 @@
+/*
+ This file is part of GNU Taler
+ (C) 2026 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 {
+  AmountString,
+  HostPortPath,
+  TalerPayTemplateUri,
+  TalerUriAction,
+  TemplateContractDetails,
+  TemplateContractDetailsDefaults,
+  TemplateType,
+} from "@gnu-taler/taler-util";
+import assert from "node:assert";
+import { test } from "node:test";
+import { applyTemplateUriOverrides } from "./pay-template.js";
+
+function paivanaUri(amount: AmountString): TalerPayTemplateUri {
+  return {
+    type: TalerUriAction.PayTemplate,
+    merchantBaseUrl: "https://merchant.example.com/" as HostPortPath,
+    templateId: "tmpl",
+    editableAmount: false,
+    amount,
+  };
+}
+
+test("a fixed paivana amount overrides same-currency simple choices", (t) => {
+  const templateContract: TemplateContractDetails = {
+    template_type: TemplateType.PAIVANA,
+    choices: [
+      { amount: "KUDOS:5" as AmountString },
+      { amount: "KUDOS:20" as AmountString },
+    ],
+  };
+  const editableDefaults: TemplateContractDetailsDefaults = {};
+
+  applyTemplateUriOverrides(
+    paivanaUri("KUDOS:7" as AmountString),
+    templateContract,
+    editableDefaults,
+  );
+
+  assert.strictEqual(templateContract.template_type, TemplateType.PAIVANA);
+  assert.deepStrictEqual(
+    (templateContract as any).choices.map((c: any) => c.amount),
+    ["KUDOS:7", "KUDOS:7"],
+  );
+});
+
+test("a fixed paivana amount leaves other currencies and complex choices alone", (t) => {
+  const templateContract: TemplateContractDetails = {
+    template_type: TemplateType.PAIVANA,
+    choices: [
+      { amount: "EUR:5" as AmountString },
+      {
+        amount: "KUDOS:5" as AmountString,
+        inputs: [{ type: "token", token_family_slug: "sub" } as any],
+      },
+    ],
+  };
+  const editableDefaults: TemplateContractDetailsDefaults = {};
+
+  applyTemplateUriOverrides(
+    paivanaUri("KUDOS:7" as AmountString),
+    templateContract,
+    editableDefaults,
+  );
+
+  assert.deepStrictEqual(
+    (templateContract as any).choices.map((c: any) => c.amount),
+    ["EUR:5", "KUDOS:5"],
+  );
+});