From 6a6e2c6eed814f33bfa0767041829ac4c797a4ef Mon Sep 17 00:00:00 2001
From: Christophe Bedard <fixed-term.christophe.bourquebedard@de.bosch.com>
Date: Mon, 29 Jul 2019 15:49:39 +0200
Subject: [PATCH] Add assert for handler_map

---
 tracetools_analysis/tracetools_analysis/processor/handler.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tracetools_analysis/tracetools_analysis/processor/handler.py b/tracetools_analysis/tracetools_analysis/processor/handler.py
index 5480609..b0944d9 100644
--- a/tracetools_analysis/tracetools_analysis/processor/handler.py
+++ b/tracetools_analysis/tracetools_analysis/processor/handler.py
@@ -67,6 +67,7 @@ class EventHandler():
 
         :param handler_map: the mapping from event name to handling method
         """
+        assert handler_map is not None and len(handler_map) > 0, f'empty map: {handler_map}'
         self._handler_map = handler_map
 
     def handle_events(self, events: List[Dict[str, str]]) -> None: