Add test pipeline step and a basic test

app/tests/conftest.py

@@ -0,0 +1,16 @@
+from collections import namedtuple
+from unittest import mock
+
+import pytest
+
+
+@pytest.fixture
+def mock_loggers():
+    with (
+        mock.patch("loguru.logger.info") as info_logger,
+        mock.patch("loguru.logger.error") as error_logger,
+    ):
+        mocked_loggers = namedtuple(
+            "mocked_loggers", ["info_logger", "error_logger"]
+        )
+        yield mocked_loggers(info_logger, error_logger)