code: def test_exact_match_score():
      generated_field = "That is so good"
      ground_truth_field = "That is so awesome"
  
      em = exact_match_score(generated_field, ground_truth_field)
      assert em == 0
  
      generated_field = "That is so good!"
      ground_truth_field = "That is so good."
  
      em = exact_match_score(generated_field, ground_truth_field)
      assert em == 1
  
      generated_field = "That is so good"
      ground_truth_field = "that is so good"
  
      em = exact_match_score(generated_field, ground_truth_field)
      assert em == 1
  
file_path: NeMo/tests/collections/nlp/test_question_answering.py
imports: import collections
  from pydoc import doc
  import pytest
  from nemo.collections.nlp.data.question_answering_squad.qa_dataset import SquadDataset
  from nemo.collections.nlp.data.question_answering_squad.qa_squad_processing import _get_tokens, exact_match_score, f1_score
label_desc: Use image node_id 3 for calling a global function with example usage: test_exact_match_score() without return types