old_contents: import pytest
  from seqeval.reporters import DictReporter
  
  
  @pytest.mark.parametrize(
      'rows, expected',
      [
          ([], {}),
          (
              [['PERSON', 0.82, 0.79, 0.81, 24]],
              {
                  'PERSON': {
                      'precision': 0.82,
                      'recall': 0.79,
                      'f1-score': 0.81,
                      'support': 24
                  }
              }
          )
      ]
  )
  def test_dict_reporter_output(rows, expected):
      reporter = DictReporter()
      for row in rows:
          reporter.write(*row)
      assert reporter.report() == expected
  
new_contents: import pytest
  from seqeval.reporters import DictReporter, StringReporter
  
  
  class TestDictReporter:
  
      def test_write_empty(self):
          reporter = DictReporter()
          reporter.write_blank()
          assert reporter.report_dict == {}
  
      @pytest.mark.parametrize(
          'rows, expected',
          [
              ([], {}),
              (
                  [['PERSON', 0.82, 0.79, 0.81, 24]],
                  {
                      'PERSON': {
                          'precision': 0.82,
                          'recall': 0.79,
                          'f1-score': 0.81,
                          'support': 24
                      }
                  }
              )
          ]
      )
      def test_dict_reporter_output(self, rows, expected):
          reporter = DictReporter()
          for row in rows:
              reporter.write(*row)
          assert reporter.report() == expected
  
  
  class TestStringReporter:
  
      def test_write_empty(self):
          reporter = StringReporter()
          reporter.write_blank()
          assert reporter.buffer == ['']
  
      def test_write_header(self):
          reporter = StringReporter()
          report = reporter.write_header()
          assert 'precision' in report
          assert 'recall' in report
          assert 'f1-score' in report
          assert 'support' in report
  
      def test_write(self):
          reporter = StringReporter()
          reporter.write('XXX', 0, 0, 0, 0)
          assert 'XXX' in reporter.buffer[0]
  
      def test_report(self):
          reporter = StringReporter()
          reporter.write('XXX', 0, 0, 0, 0)
          report = reporter.report()
          assert 'XXX' in report
          assert 'precision' in report
  
subject: Add test cases for reporters.py