def test_case_223():
matches_res_223 = matches_dict('223')
best_match_res_223 = generate_best_match(matches_res_223)
assert Counter(matches_res_223) == Counter(['ABD', 'ABE', 'ABF', 'ACD', 'ACE', 'ACF', 'BAD', 'BAE', 'BAF', 'BCE',
'CAD', 'CAE', 'CAF', 'CBE'])
assert best_match_res_223 == 'ABE'
def test_error_2():
matches_res = matches_dict('771')
best_match_res = generate_best_match(matches_res)
assert matches_res == 'Error : Please enter digits between 2 and 9 (both 2 and 9 included in the range)'
assert best_match_res == 'Error'
def test_case_779():
matches_res_779 = matches_dict('779')
best_match_res_779 = generate_best_match(matches_res_779)
assert not matches_res_779
assert not best_match_res_779
def test_error_1():
matches_res = matches_dict('7792')
best_match_res = generate_best_match(matches_res)
assert matches_res == 'Error : Please enter a 3 digit string'
assert best_match_res == 'Error'
def test_case_222():
matches_res_222 = matches_dict('222')
best_match_res_222 = generate_best_match(matches_res_222)
assert Counter(matches_res_222) == Counter(['ABC', 'ACB', 'BAC', 'BCA', 'CAB', 'CBA'])
assert best_match_res_222 == 'ABC'