add test_config

dali2mqtt/config.py

@@ -100,7 +100,8 @@ def load_config_file(self):
                     )
                     configuration = {}
                 self._config = CONF_SCHEMA(configuration)
-                self._callback()
+                if self._callback:
+                    self._callback()
             except AttributeError:
                 # No callback configured
                 pass
@@ -111,8 +112,8 @@ def load_config_file(self):
     def save_config_file(self):
         """Save configuration back to yaml file."""
         try:
+            cfg = self._config.pop(CONF_CONFIG)  # temporary displace config file
             with open(self._path, "w", encoding="utf8") as outfile:
-                cfg = self._config.pop(CONF_CONFIG)  # temporary displace config file
                 yaml.dump(
                     self._config, outfile, default_flow_style=False, allow_unicode=True
                 )

tests/test_config.py

@@ -0,0 +1,17 @@
+"""Tests for config."""
+
+from dali2mqtt.config import Config
+from unittest import mock
+
+def test_load_config():
+    args = mock.Mock()
+    args.config = "tests/data/config.yaml"
+
+    cfg = Config(args)
+
+    assert cfg.mqtt_conf == ('localhost', 1883, None, None, 'dali2mqtt')
+    assert cfg,dali_driver == "hasseb"
+    assert cfg.ha_discovery_prefix == "homeassistant"
+    assert cfg.log_level == "info"
+    assert cfg.log_color == False
+    assert cfg.devices_names_file == "devices.yaml"