♻️ refactor: Autotest class and update tests for improved type safety…

… and readability

autopytest/autotest.py

@@ -3,10 +3,10 @@
 import sys
 import time
 from pathlib import Path
-from typing import Any
 
 from watchdog.events import FileSystemEvent, FileSystemEventHandler
 from watchdog.observers import Observer
+from watchdog.observers.api import BaseObserver
 
 from .config import Config
 from .file import File
@@ -19,9 +19,10 @@
     level=logging.INFO,
 )
 
-class Autotest(FileSystemEventHandler):
 
+class Autotest(FileSystemEventHandler):
     _log: logging.Logger = logging.getLogger("autopytest")
+    _observer: BaseObserver
 
     def __init__(self, path: str) -> None:
         self.config = Config.parse(path)
@@ -88,5 +89,5 @@ def log(self) -> logging.Logger:
         return self._log
 
     @property
-    def observer(self) -> Any:
-        return self._observer
+    def observer(self) -> BaseObserver:
+        return self._observer

tests/test_autotest.py

@@ -1,11 +1,11 @@
+import contextlib
 from pathlib import Path
 from unittest.mock import MagicMock, call, patch
 
 import pytest
 from watchdog.events import FileModifiedEvent
 
 from autopytest.autotest import Autotest
-import contextlib
 
 pytestmark = pytest.mark.filterwarnings(
     "ignore:cannot collect test class 'TestFileStrategy'",
@@ -69,10 +69,15 @@ def test_on_modified(mock_match_strategy: MagicMock) -> None:
 
     mock_match_strategy.assert_called_once_with(path)
 
+
 @patch("autopytest.autotest.Autotest.observer")
 @patch("autopytest.autotest.Autotest.log")
 @patch("time.sleep", side_effect=KeyboardInterrupt)
-def test_start(_mock_sleep: MagicMock, mock_log: MagicMock, mock_observer: MagicMock) -> None:
+def test_start(
+    _mock_sleep: MagicMock,
+    mock_log: MagicMock,
+    mock_observer: MagicMock,
+) -> None:
     autotest_instance = Autotest("fixtures/application")
 
     with contextlib.suppress(SystemExit):