util: fix payto URI construction

1 files changed, 13 insertions, 1 deletions

diff --git a/packages/taler-util/src/payto.test.ts b/packages/taler-util/src/payto.test.ts
index 1b6907cbb..3b28c4714 100644
--- a/packages/taler-util/src/payto.test.ts
+++ b/packages/taler-util/src/payto.test.ts
@@ -16,7 +16,7 @@
 
 import test from "ava";
 
-import { PaytoString, parsePaytoUri, stringifyPaytoUri } from "./payto.js";
+import { PaytoString, addPaytoQueryParams, parsePaytoUri, stringifyPaytoUri } from "./payto.js";
 
 test("basic payto parsing", (t) => {
   const r1 = parsePaytoUri("https://example.com/");
@@ -42,3 +42,15 @@ test("parsing payto with % carh", (t) => {
 
   t.is(stringifyPaytoUri(parsePaytoUri(payto1)!), payto1);
 });
+
+test("adding payto query params", (t) => {
+  const payto1 =
+    "payto://iban/DE1231231231?receiver-name=John%20Doe" as PaytoString;
+  const out1 = addPaytoQueryParams(payto1, {});
+  t.deepEqual(payto1, out1);
+
+  const out2 = addPaytoQueryParams(payto1, {
+    foo: "42",
+  });
+  t.deepEqual(out2, "payto://iban/DE1231231231?receiver-name=John%20Doe&foo=42");
+});