fix string to bool

.drone.yml

@@ -6,7 +6,7 @@ workspace:
   path: /drone/src
 
 steps:
-  - name: test
+  - name: test with DEBUG_MODE
     image: python:alpine
     pull: if-not-exists
     environment:
@@ -26,3 +26,24 @@ steps:
           logger.critical("This is a Critical Message")
 
         main()'
+
+  - name: test without DEBUG_MODE
+    image: python:alpine
+    pull: if-not-exists
+    environment:
+      DEBUG_MODE: 'False'
+      TZ: 'Europe/Berlin'
+    commands:
+      - apk --no-cache add gcc musl-dev tzdata
+      - pip3 install --no-cache-dir -r requirements.txt
+      - echo "$DEBUG_MODE"
+      - |
+        python3 -c 'from loghandler import logger;
+        def main():
+          logger.debug("This is a Debug Message")
+          logger.info("This is a Info Message")
+          logger.warning("This is a Warning Message")
+          logger.error("This is a Error Message")
+          logger.critical("This is a Critical Message")
+
+        main()'