From: david-sarah <david-sarah@jacaranda.org>
Date: Fri, 6 Aug 2010 05:00:51 +0000 (-0700)
Subject: test_util.py: use SHA-256 from pycryptopp instead of MD5 from hashlib (for uses in... 
X-Git-Tag: allmydata-tahoe-1.8.0b2~2
X-Git-Url: https://git.rkrishnan.org/components/com_hotproperty/flags/something?a=commitdiff_plain;h=a79ec1c6cd80b96294f3f4dcf72eb2aea5a8da1d;p=tahoe-lafs%2Ftahoe-lafs.git

test_util.py: use SHA-256 from pycryptopp instead of MD5 from hashlib (for uses in which any hash will do), since hashlib was only added to the stdlib in Python 2.5.
---

diff --git a/NEWS b/NEWS
index f1be66dc..050e79c0 100644
--- a/NEWS
+++ b/NEWS
@@ -8,6 +8,7 @@
    created by other Tahoe-LAFS versions. (#1159)
  - Partial GET requests using the Range header were not handled
    correctly by the new downloader. (#1154)
+ - Restore compatibility of test suite with Python 2.4.x.
 
 * Release 1.8.0β (2010-08-02)
 
diff --git a/src/allmydata/test/test_util.py b/src/allmydata/test/test_util.py
index 6b687808..4ebcb1b9 100644
--- a/src/allmydata/test/test_util.py
+++ b/src/allmydata/test/test_util.py
@@ -7,7 +7,7 @@ from twisted.trial import unittest
 from twisted.internet import defer, reactor
 from twisted.python.failure import Failure
 from twisted.python import log
-from hashlib import md5
+from pycryptopp.hash.sha256 import SHA256 as _hash
 
 from allmydata.util import base32, idlib, humanreadable, mathutil, hashutil
 from allmydata.util import assertutil, fileutil, deferredutil, abbreviate
@@ -1781,7 +1781,7 @@ class ByteSpans(unittest.TestCase):
         def _create(subseed):
             ns1 = S1(); ns2 = S2()
             for i in range(10):
-                what = md5(subseed+str(i)).hexdigest()
+                what = _hash(subseed+str(i)).hexdigest()
                 start = int(what[2:4], 16)
                 length = max(1,int(what[5:6], 16))
                 ns1.add(start, length); ns2.add(start, length)
@@ -1789,7 +1789,7 @@ class ByteSpans(unittest.TestCase):
 
         #print
         for i in range(1000):
-            what = md5(seed+str(i)).hexdigest()
+            what = _hash(seed+str(i)).hexdigest()
             op = what[0]
             subop = what[1]
             start = int(what[2:4], 16)
@@ -1835,7 +1835,7 @@ class ByteSpans(unittest.TestCase):
             self.failUnlessEqual(bool(s1), bool(s2))
             self.failUnlessEqual(list(s1), list(s2))
             for j in range(10):
-                what = md5(what[12:14]+str(j)).hexdigest()
+                what = _hash(what[12:14]+str(j)).hexdigest()
                 start = int(what[2:4], 16)
                 length = max(1, int(what[5:6], 16))
                 span = (start, length)
@@ -2104,14 +2104,14 @@ class StringSpans(unittest.TestCase):
             created = 0
             pieces = []
             while created < length:
-                piece = md5(seed + str(created)).hexdigest()
+                piece = _hash(seed + str(created)).hexdigest()
                 pieces.append(piece)
                 created += len(piece)
             return "".join(pieces)[:length]
         def _create(subseed):
             ns1 = S1(); ns2 = S2()
             for i in range(10):
-                what = md5(subseed+str(i)).hexdigest()
+                what = _hash(subseed+str(i)).hexdigest()
                 start = int(what[2:4], 16)
                 length = max(1,int(what[5:6], 16))
                 ns1.add(start, _randstr(length, what[7:9]));
@@ -2120,7 +2120,7 @@ class StringSpans(unittest.TestCase):
 
         #print
         for i in range(1000):
-            what = md5(seed+str(i)).hexdigest()
+            what = _hash(seed+str(i)).hexdigest()
             op = what[0]
             subop = what[1]
             start = int(what[2:4], 16)
@@ -2148,7 +2148,7 @@ class StringSpans(unittest.TestCase):
             self.failUnlessEqual(s1.len(), s2.len())
             self.failUnlessEqual(list(s1._dump()), list(s2._dump()))
             for j in range(100):
-                what = md5(what[12:14]+str(j)).hexdigest()
+                what = _hash(what[12:14]+str(j)).hexdigest()
                 start = int(what[2:4], 16)
                 length = max(1, int(what[5:6], 16))
                 d1 = s1.get(start, length); d2 = s2.get(start, length)