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#!/usr/bin/env python3
# © Copyright 2021-2022, Scott Gasch
"""letter_compress unittest."""
import math
import random
import unittest
import bootstrap
import letter_compress
import unittest_utils as uu
class TestLetterCompress(unittest.TestCase):
def test_with_random_strings(self):
alphabet = 'abcdefghijklmnopqrstuvwxyz .,"-'
for n in range(20):
message = ""
for letter in random.choices(alphabet, k=random.randrange(10, 5000)):
message += letter
mlen = len(message)
compressed = letter_compress.compress(message)
clen = len(compressed)
self.assertEqual(math.ceil(mlen * 5.0 / 8.0), clen)
decompressed = letter_compress.decompress(compressed)
self.assertEqual(decompressed, message, f'The bad message string was "{message}"')
if __name__ == '__main__':
bootstrap.initialize(unittest.main)()
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