Fix improving error handling when Docker daemon is not running

mqtt-tools · Aug 3, 2023 · 4866af8 · 4866af8
1 parent 95c52b7
commit 4866af8
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diff --git a/CHANGES.rst b/CHANGES.rst
@@ -6,6 +6,8 @@ pytest-mqtt changelog
 in progress
 ===========
 
+- Fix improving error handling when Docker daemon is not running.
+
 
 2023-07-28 0.3.0
 ================

diff --git a/pytest_mqtt/mosquitto.py b/pytest_mqtt/mosquitto.py
@@ -55,8 +55,11 @@ def pull_image(self):
         docker_client.images.pull(image_name)
 
     def run(self):
-        docker_client = docker.from_env(version=self.docker_version)
-        docker_url = docker_client.api.base_url
+        try:
+            docker_client = docker.from_env(version=self.docker_version)
+            docker_url = docker_client.api.base_url
+        except Exception:
+            raise ConnectionError("Cannot connect to the Docker daemon. Is the docker daemon running?")
         try:
             docker_client.ping()
         except Exception: