def test_replace_zero_multiple_zeros(self):
"""Test replace_zero with 3 zeros (zéro)."""
input_str = 'zéro~ʤʊ~zéro~zéro'
actual_output = CreeCleaner.replace_zero(input_str)
desired_output = 'Ø~ʤʊ~Ø~Ø'
self.assertEqual(actual_output, desired_output)
def test_replace_zero_empty_string(self):
"""Test replace_zero with an empty string."""
actual_output = CreeCleaner.replace_zero('')
desired_output = ''
self.assertEqual(actual_output, desired_output)
def test_replace_zero_single_zero(self):
"""Test replace_zero with 1 zero (zéro)."""
input_str = 'puhchu~shum~zéro'
actual_output = CreeCleaner.replace_zero(input_str)
desired_output = 'puhchu~shum~Ø'
self.assertEqual(actual_output, desired_output)