refactor(tests): ✅ udpate tests

update tests by adding a test_utils module

tests/conftest.py

@@ -1,8 +1,10 @@
 # tests/conftest.py
 import os
 from pathlib import Path
+from unittest.mock import MagicMock
 
 import pytest
+from exchangelib import Message
 
 from logwatcher.config import FIXTURE_PATH
 from logwatcher.logging_config import setup_logging
@@ -52,4 +54,20 @@ def invalid_log_dir_fixture() -> Path:
         All invalid log files created for testing only.
         Used for integration tests of parsing.
     """
-    return FIXTURE_PATH / "invalid_logs"
+    return FIXTURE_PATH / "invalid_logs"
+
+
+@pytest.fixture(scope="package")
+def make_mock_account():
+    """A fake Account with a msg_folder_root returning a fake Logs folder."""
+
+    def _make_mock_account(
+        messages: list[Message] | None = None, analyzed_folder: MagicMock | None = None
+    ):
+        account = MagicMock()
+        logs_folder = account.msg_folder_root.__truediv__.return_value
+        logs_folder.all.return_value = messages or []
+        logs_folder.glob.return_value = [analyzed_folder] if analyzed_folder else []
+        return account
+
+    return _make_mock_account