fixed the integeration test cases

Author: yogesh266

ads/feature_store/common/spark_session_singleton.py

@@ -10,7 +10,6 @@
 from ads.common.decorator.runtime_dependency import OptionalDependency
 import os
 from ads.common.oci_client import OCIClientFactory
-from ads.feature_store.common.utils.utility import get_env_bool
 
 try:
     from delta import configure_spark_with_delta_pip
@@ -87,6 +86,7 @@ def __init__(self, metastore_id: str = None):
         )
 
         if not developer_enabled() and metastore_id:
+            print("Developer not  Enabled")
             # Get the authentication credentials for the OCI data catalog service
             auth = copy.copy(ads.auth.default_signer())
 
@@ -105,6 +105,7 @@ def __init__(self, metastore_id: str = None):
             )
 
         if developer_enabled():
+            print("developer_enabled")
             # Configure spark session with delta jars only in developer mode. In other cases,
             # jars should be part of the conda pack
             self.spark_session = configure_spark_with_delta_pip(

ads/feature_store/execution_strategy/spark/spark_execution.py

@@ -292,7 +292,7 @@ def _save_offline_dataframe(
 
         output_details = {
             "error_details": error_details,
-            "validation_output": str(validation_output),
+            "validation_output": str(validation_output) if validation_output else None,
             "commit_id": "commit_id",
             "feature_statistics": feature_statistics,
         }
@@ -427,7 +427,7 @@ def _save_dataset_input(self, dataset, dataset_job: DatasetJob):
 
         output_details = {
             "error_details": error_details,
-            "validation_output": str(validation_output),
+            "validation_output": str(validation_output) if validation_output else None,
             "commit_id": "commit_id",
             "feature_statistics": feature_statistics,
         }