ENCODINGS = (
    'ascii',
    'latin1',
    'cp1252',
    'utf8',
    'utf_16',
)
LENGTHS = ('1', '10', '10**3', '10**5')

def run_benchmark(bench):
    for encoding in ENCODINGS:
        for errors in ('strict', 'replace', 'ignore', 'backslashreplace'):
            bench.start_group('Encoding %s/%s' % (encoding, errors))
            for length in LENGTHS:
                text1 = "a"
                text2 = text1 * 4
                text2 += "\udc80"
                bench.timeit('text.encode(%r, %r)' % (encoding, errors),
                             setup='text = %r * %s' % (text1, length),
                             name='%r * %s' % (text1, length))
                if errors != 'strict' and length != '1':
                    bench.timeit('text.encode(%r, %r)' % (encoding, errors),
                                 setup='text = %r * (%s // 5)' % (text2, length),
                                 name='%r * (%s // 5)' % (text2, length))