text: import os
  import json
  
  import pytest
  from .util import working_directory
  
  from ..cli import process
  
  
  def test_cli_json(tmp_path):
      """Test that the cli/process() yields a loadable JSON report"""
  
      # XXX Path.__str__() is necessary for Python 3.5
      with working_directory(str(tmp_path)):
          with open('gt.txt', 'w') as gtf:
              gtf.write('AAAAA')
          with open('ocr.txt', 'w') as ocrf:
              ocrf.write('AAAAB')
  
          process('gt.txt', 'ocr.txt', 'report')
          with open('report.json', 'r') as jsonf:
              j = json.load(jsonf)
              assert j['cer'] == pytest.approx(0.2)
  
  
  def test_cli_json_cer_is_infinity(tmp_path):
      """Test that the cli/process() yields a loadable JSON report when CER == inf"""
  
      # XXX Path.__str__() is necessary for Python 3.5
      with working_directory(str(tmp_path)):
          with open('gt.txt', 'w') as gtf:
              gtf.write('')  # Empty to yield CER == inf
          with open('ocr.txt', 'w') as ocrf:
              ocrf.write('Not important')
  
          process('gt.txt', 'ocr.txt', 'report')
          with open('report.json', 'r') as jsonf:
              j = json.load(jsonf)
              assert j['cer'] == pytest.approx(float('inf'))
  