vdk-heartbeat: improve logging

projects/vdk-heartbeat/src/vdk/internal/heartbeat/heartbeat_test.py

@@ -50,8 +50,24 @@ def execute_test(self):
 def create_test_instance(config: Config) -> HeartbeatTest:
     import importlib
 
-    module = importlib.import_module(config.database_test_module_name)
-    class_ = getattr(module, config.database_test_class_name)
+    try:
+        module = importlib.import_module(config.database_test_module_name)
+    except ModuleNotFoundError as e:
+        raise ModuleNotFoundError(
+            f"Configured database_test_module_name is not found. Error was: {e}.\n"
+            f"Make sure module {config.database_test_module_name} exists.\n"
+            f"Check if the module name in the configuration is not misspelled "
+            f"or if some 3th party library needs to be installed to provide it."
+        ) from None
+    try:
+        class_ = getattr(module, config.database_test_class_name)
+    except AttributeError as e:
+        raise AttributeError(
+            f"Configured database_test_class_name is not found. Error was: {e}.\\n"
+            f"Make sure class {config.database_test_class_name} exists.\n"
+            f"Check if the class name in the configuration is not misspelled "
+            f"or if some 3th party library needs to be installed to provide it."
+        ) from None
     log.info(
         f"Run test instance: {config.database_test_module_name}.{config.database_test_class_name}"
     )

projects/vdk-heartbeat/src/vdk/internal/heartbeat/job_controller.py

@@ -142,8 +142,9 @@ def show_last_job_execution_logs(self):
                 self.config.job_team,
             ]
         )
+        logs = res.decode("string_escape") if res else res
         log.info(
-            f"Team {self.config.job_team}, Job: {self.config.job_name} Logs:\n {res}"
+            f"Team {self.config.job_team}, Job: {self.config.job_name} Logs:\n {logs}"
         )
 
     @LogDecorator(log)