1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
import os
import unittest
import lzf
class LZFTest(object):
def __init__(self, *args, **kwargs):
super(LZFTest, self).__init__(*args, **kwargs)
self.VAL = self.VAL.encode('utf8')
def compress(self, text):
# lzf guarantees that even if the compressed version is longer, it is
# within 104% of the original size (rounded up), so this should work
return lzf.compress(text, len(text) * 2)
def test_selective(self):
compressed = self.compress(self.VAL)
self.assertEqual(lzf.decompress(compressed, len(self.VAL) - 1), None)
assert lzf.decompress(compressed, len(self.VAL))
def test_decompresses_correctly(self):
compressed = self.compress(self.VAL)
self.assertEqual(lzf.decompress(compressed, len(self.VAL)), self.VAL)
def test_compression_negative_maxlen(self):
self.assertRaises(ValueError, lzf.compress, self.VAL, -6)
def test_decompression_negative_maxlen(self):
c = self.compress(self.VAL)
self.assertRaises(ValueError, lzf.decompress, c, -1)
def test_wrong_maxlen_type(self):
self.assertRaises(TypeError, lzf.compress, self.VAL, "hi there")
class ShortString(LZFTest, unittest.TestCase):
VAL = "this is a test"
class StringWithRepetition(LZFTest, unittest.TestCase):
VAL = "a longer string, repeating. " * 500
class LongStringNoRepetition(LZFTest, unittest.TestCase):
VAL = open(os.path.join(os.path.dirname(__file__), "lzf_module.c")).read()
if __name__ == '__main__':
unittest.main()
|
