1 files changed, 13 insertions, 5 deletions
diff --git a/packages/taler-harness/src/integrationtests/test-merchant-instances.ts b/packages/taler-harness/src/integrationtests/test-merchant-instances.ts
index f7d89c543..fd7a8ca3a 100644
--- a/packages/taler-harness/src/integrationtests/test-merchant-instances.ts
+++ b/packages/taler-harness/src/integrationtests/test-merchant-instances.ts
@@ -17,17 +17,15 @@
 /**
  * Imports.
  */
-import { URL } from "@gnu-taler/taler-util";
+import { MerchantApiClient, URL } from "@gnu-taler/taler-util";
 import {
   ExchangeService,
   GlobalTestState,
-  MerchantApiClient,
   MerchantService,
   setupDb,
   getPayto,
   harnessHttpLib,
 } from "../harness/harness.js";
-import { createPlatformHttpLib } from "@gnu-taler/taler-util/http";
 
 /**
  * Do basic checks on instance management and authentication.
@@ -77,7 +75,17 @@ export async function runMerchantInstancesTest(t: GlobalTestState) {
   }
 
   // Add an instance, no auth!
-  await merchant.addInstance({
+  await merchant.addInstanceWithWireAccount({
+    id: "default",
+    name: "Default Instance",
+    paytoUris: [getPayto("merchant-default")],
+    auth: {
+      method: "external",
+    },
+  });
+
+  // Add it again, should be idempotent
+  await merchant.addInstanceWithWireAccount({
     id: "default",
     name: "Default Instance",
     paytoUris: [getPayto("merchant-default")],
@@ -87,7 +95,7 @@ export async function runMerchantInstancesTest(t: GlobalTestState) {
   });
 
   // Add an instance, no auth!
-  await merchant.addInstance({
+  await merchant.addInstanceWithWireAccount({
     id: "myinst",
     name: "Second Instance",
     paytoUris: [getPayto("merchant-default")],