Introduce complete refactoring.

archive/tests/fixtures/shared_fixtures.py

@@ -0,0 +1,15 @@
+import pytest
+import tempfile
+from pathlib import Path
+
+
+@pytest.fixture(scope='session')
+def tmp_dir():
+    with tempfile.TemporaryDirectory() as tmp_dir:
+        yield Path(tmp_dir)
+
+
+@pytest.fixture
+def mock_device_metadata_json_(tmp_dir):
+    with tempfile.TemporaryDirectory() as tmp_dir:
+        pass