class_docstr: This test case checks some validating functionality that is implemented
  in `ensure_model_can_train_save_and_load`
code: def test_02a_test_validation_metric_terminal_value_not_set(self):
      pytest.raises(
          AssertionError,
          self.ensure_model_can_train_save_and_load,
          self.param_file,
          metric_to_check="accuracy",
          metric_terminal_value=None,
      )
  
file_path: allennlp/tests/models/test_model_test_case.py
imports: import json
  import pytest
  from allennlp.common.testing import ModelTestCase
label_desc: Use image node_id 3 for calling the ModelWithIncorrectValidationMetricTest obj's underlying member method code with example usage: obj.test_02a_test_validation_metric_terminal_value_not_set() without return types