From 0e5ef41ea98a17b2dde8e5148998c8fe4bbce5d8 Mon Sep 17 00:00:00 2001
From: relikd <info@relikd.de>
Date: Fri, 22 Jul 2022 19:35:04 +0200
Subject: [PATCH] fix(cron): assert callback is set

---
 botlib/cron.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/botlib/cron.py b/botlib/cron.py
index 507adc3..510a22d 100755
--- a/botlib/cron.py
+++ b/botlib/cron.py
@@ -61,6 +61,7 @@ class Cron:
     def add_job(self, interval: int, callback: CronCallback, arg: Any = None) \
             -> Job:
         ''' Create and queue a new job. '''
+        assert callback and callable(callback), 'No Cron callback provided.'
         job = Cron.Job(interval, callback, arg)
         self.push(job)
         return job