code: def testConstruct(self):
      presto_example_gen = component.PrestoExampleGen(
          self.conn_config, query="query"
      )
      self.assertEqual(
          self.conn_config,
          self._extract_conn_config(
              presto_example_gen.exec_properties["custom_config"]
          ),
      )
      self.assertEqual(
          standard_artifacts.Examples.TYPE_NAME,
          presto_example_gen.outputs["examples"].type_name,
      )
  
file_path: tfx/tfx/examples/custom_components/presto_example_gen/presto_component/component_test.py
imports: import tensorflow
  from tfx.examples.custom_components.presto_example_gen.presto_component import component
  from tfx.examples.custom_components.presto_example_gen.proto import presto_config_pb2
  from tfx.proto import example_gen_pb2
  from tfx.types import standard_artifacts
  from tfx.utils import proto_utils
label_desc: Use image node_id 3 for calling the ComponentTest obj's underlying member method code with example usage: obj.testConstruct() without return types