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
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
|
"""Test the binascii C module."""
from test_support import verbose
import binascii
# Show module doc string
print binascii.__doc__
# Show module exceptions
print binascii.Error
print binascii.Incomplete
# Check presence and display doc strings of all functions
funcs = []
for suffix in "base64", "hqx", "uu":
prefixes = ["a2b_", "b2a_"]
if suffix == "hqx":
prefixes.extend(["crc_", "rlecode_", "rledecode_"])
for prefix in prefixes:
name = prefix + suffix
funcs.append(getattr(binascii, name))
for func in funcs:
print "%-15s: %s" % (func.__name__, func.__doc__)
# Create binary test data
testdata = "The quick brown fox jumps over the lazy dog.\r\n"
for i in range(256):
# Be slow so we don't depend on other modules
testdata = testdata + chr(i)
testdata = testdata + "\r\nHello world.\n"
# Test base64 with valid data
print "base64 test"
MAX_BASE64 = 57
lines = []
for i in range(0, len(testdata), MAX_BASE64):
b = testdata[i:i+MAX_BASE64]
a = binascii.b2a_base64(b)
lines.append(a)
print a,
res = ""
for line in lines:
b = binascii.a2b_base64(line)
res = res + b
assert res == testdata
# Test base64 with random invalid characters sprinkled throughout
# (This requires a new version of binascii.)
fillers = ""
valid = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789+/"
for i in range(256):
c = chr(i)
if c not in valid:
fillers = fillers + c
def addnoise(line):
noise = fillers
ratio = len(line) / len(noise)
res = ""
while line and noise:
if len(line) / len(noise) > ratio:
c, line = line[0], line[1:]
else:
c, noise = noise[0], noise[1:]
res = res + c
return res + noise + line
res = ""
for line in map(addnoise, lines):
b = binascii.a2b_base64(line)
res = res + b
assert res == testdata
# Test uu
print "uu test"
MAX_UU = 45
lines = []
for i in range(0, len(testdata), MAX_UU):
b = testdata[i:i+MAX_UU]
a = binascii.b2a_uu(b)
lines.append(a)
print a,
res = ""
for line in lines:
b = binascii.a2b_uu(line)
res = res + b
assert res == testdata
# Test crc32()
crc = binascii.crc32("Test the CRC-32 of")
crc = binascii.crc32(" this string.", crc)
if crc != 1571220330:
print "binascii.crc32() failed."
# The hqx test is in test_binhex.py
|
