code: def testValidateServiceAccount_ShortProjectId_RaisesValueError(self):
      with self.assertRaisesRegex(
          ValueError, r"Invalid service_account"
      ):
          # Project id must be greater than 6 characters
          short_project_id = "a" * 5
          gcp.validate_service_account(
              f"test_sa_name@{short_project_id}.iam.gserviceaccount.com"
          )
  
file_path: cloud/src/python/tensorflow_cloud/core/tests/unit/gcp_test.py
imports: from absl.testing import absltest
  from tensorflow_cloud.core import gcp
  from tensorflow_cloud.core import machine_config
label_desc: Use image node_id 8 for calling the TestGcp obj's underlying member method code with example usage: obj.testValidateServiceAccount_ShortProjectId_RaisesValueError() without return types