Add conf_path module and update event_gate_lambda for configuration resolution

Author: oto-macenauer-absa

src/__init__.py

@@ -0,0 +1,15 @@
+#
+# Copyright 2025 ABSA Group Limited
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#

src/event_gate_lambda.py

@@ -27,16 +27,14 @@
 from jsonschema import validate
 from jsonschema.exceptions import ValidationError
 
-from . import conf_path  # new import for CONF_DIR resolution
-try:  # fallback if relative import fails (e.g., executed as a script)
-    from . import conf_path as _conf_mod
-except Exception:  # pragma: no cover
-    import conf_path as _conf_mod
-conf_path = _conf_mod
-
-# Remove old resolution logic, use module instead
-_CONF_DIR = conf_path.CONF_DIR
-_INVALID_CONF_ENV = conf_path.INVALID_CONF_ENV
+try:
+    from .conf_path import CONF_DIR, INVALID_CONF_ENV
+except ImportError:  # fallback when executed outside package context
+    from conf_path import CONF_DIR, INVALID_CONF_ENV
+
+# Use imported symbols for internal variables
+_CONF_DIR = CONF_DIR
+_INVALID_CONF_ENV = INVALID_CONF_ENV
 
 sys.path.append(os.path.join(os.path.dirname(__file__)))
 

tests/conftest.py

@@ -0,0 +1,20 @@
+#
+# Copyright 2025 ABSA Group Limited
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+import os, sys
+# Ensure project root is on sys.path so 'src' package is importable during tests
+PROJECT_ROOT = os.path.abspath(os.path.join(os.path.dirname(__file__), '..'))
+if PROJECT_ROOT not in sys.path:
+    sys.path.insert(0, PROJECT_ROOT)