docstr: Should be able to create StatusOverview with no deployment statuses.
docstr_tok: ["Should","be","able","to","create","StatusOverview","with","no","deployment","statuses","."]
code: def test_empty_list_valid(self):
      """Should be able to create StatusOverview with no deployment statuses."""
  
      # Check default is empty list
      status_info = StatusOverview(
          app_status=self.get_valid_serve_application_status_info()
      )
      status_info.deployment_statuses == []
  
      # Ensure empty list can be passed in explicitly
      status_info = StatusOverview(
          app_status=self.get_valid_serve_application_status_info(),
          deployment_statuses=[],
      )
      status_info.deployment_statuses == []
  
imports: import time
  import pytest
  from ray.serve._private.common import ApplicationStatus, ApplicationStatusInfo, DeploymentStatus, DeploymentStatusInfo, DeploymentStatusTrigger, ReplicaName, RunningReplicaInfo, StatusOverview
  from ray.serve._private.utils import get_random_string
  from ray.serve.generated.serve_pb2 import ApplicationStatusInfo
  from ray.serve.generated.serve_pb2 import DeploymentStatusInfo
  from ray.serve.generated.serve_pb2 import StatusOverview
label_desc: Use image node_id 3 for calling the TestStatusOverview obj's underlying member method code with example usage: obj.test_empty_list_valid() without return types