add testing, reverse engineered / generated from OpenDTU source to improve compatibility testing and detecting regressions early.

testdata/events_response.json

@@ -0,0 +1,23 @@
+{
+  "count": 3,
+  "events": [
+    {
+      "message_id": 1,
+      "message": "Inverter start",
+      "start_time": 1634567890,
+      "end_time": 1634567950
+    },
+    {
+      "message_id": 2,
+      "message": "Grid fault",
+      "start_time": 1634568000,
+      "end_time": 1634568120
+    },
+    {
+      "message_id": 3,
+      "message": "Communication error",
+      "start_time": 1634568200,
+      "end_time": 0
+    }
+  ]
+}