--- /dev/null
+#!/usr/bin/env python3
+
+import random
+import math
+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)()