chore: more dummy tests

.vscode/settings.json

@@ -1,5 +1,4 @@
 {
-    "files.associations": {
-        "*.yaml": "home-assistant"
-    }
+    "python.testing.unittestEnabled": false,
+    "python.testing.pytestEnabled": true
 }

tests/test_device_tools.py

@@ -0,0 +1,14 @@
+"""Tests for the device_tools module."""
+
+from unittest.mock import MagicMock
+
+from custom_components.device_tools.device_tools import DeviceTools
+
+
+def test_init() -> None:
+    hass = MagicMock()
+    logger = MagicMock()
+
+    device_tools = DeviceTools(hass, logger)
+
+    assert device_tools._hass == hass