diff --git a/web/gui/src/test/_karma/ev/dualHomed/ev_1_addInstance.json b/web/gui/src/test/_karma/ev/dualHomed/ev_1_addInstance.json
new file mode 100644
index 0000000..daf074b
--- /dev/null
+++ b/web/gui/src/test/_karma/ev/dualHomed/ev_1_addInstance.json
@@ -0,0 +1,15 @@
+{
+  "event": "addInstance",
+  "payload": {
+    "id": "127.0.0.1",
+    "ip": "127.0.0.1",
+    "online": true,
+    "ready": true,
+    "uiAttached": true,
+    "switches": 2,
+    "labels": [
+      "127.0.0.1",
+      "127.0.0.1"
+    ]
+  }
+}