mirrors/cpython
0
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2024-11-26 03:14:27 +08:00
Code Issues Packages Projects Releases Wiki Activity

Merged revisions 79954 via svnmerge from

Browse Source 
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r79954 | stefan.krah | 2010-04-11 17:15:54 +0200 (Sun, 11 Apr 2010) | 17 lines


  Fix for issues #3581, #1481 and #7650:

  1. The assumptions in check_node() were too restrictive:

       - Hardware addresses with universal_local_bit=1 are valid
         (locally administered).

       - Many of the tested functions (including uuid.getnode())
         may return valid RFC 4122 random node IDs. These are pretty
         much random 48-bit values with the multicast bit set to 1.

  2. _unixdll_getnode() calls _uuid_generate_time(), which may be None
     on some platforms. The resulting TypeError is now caught.
........
This commit is contained in:
Stefan Krah 2010-04-11 16:49:20 +00:00
parent 22005fc5ba
commit 6108ea8dad
1 changed files with 9 additions and 23 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

28
Lib/test/test_uuid.py
View File

@ -292,14 +292,8 @@ class TestUUID(TestCase):
badtype(lambda: setattr(u, 'node', 0))
def check_node(self, node, source):
individual_group_bit = (node >> 40) & 1
universal_local_bit = (node >> 40) & 2
message = "%012x doesn't look like a real MAC address" % node
self.assertEqual(individual_group_bit, 0, message)
self.assertEqual(universal_local_bit, 0, message)
self.assertNotEqual(node, 0, message)
self.assertNotEqual(node, 0xffffffffffff, message)
self.assertTrue(0 <= node, message)
message = "%012x is not an RFC 4122 node ID" % node
self.assertTrue(0 < node, message)
self.assertTrue(node < (1 << 48), message)
TestUUID.source2node[source] = node
@ -318,10 +312,6 @@ class TestUUID(TestCase):
def test_ifconfig_getnode(self):
import sys
print(""" WARNING: uuid._ifconfig_getnode is unreliable on many platforms.
It is disabled until the code and/or test can be fixed properly.""", file=sys.__stdout__)
return
import os
if os.name == 'posix':
node = uuid._ifconfig_getnode()
@ -341,18 +331,18 @@ class TestUUID(TestCase):
def test_random_getnode(self):
node = uuid._random_getnode()
self.assertTrue(0 <= node)
# Least significant bit of first octet must be set.
self.assertTrue(node & 0x010000000000)
self.assertTrue(node < (1 << 48))
def test_unixdll_getnode(self):
import sys
print(""" WARNING: uuid._unixdll_getnode is unreliable on many platforms.
It is disabled until the code and/or test can be fixed properly.""", file=sys.__stdout__)
return
import os
if importable('ctypes') and os.name == 'posix':
try: # Issues 1481, 3581: _uuid_generate_time() might be None.
self.check_node(uuid._unixdll_getnode(), 'unixdll')
except TypeError:
pass
def test_windll_getnode(self):
import os
@ -361,10 +351,6 @@ class TestUUID(TestCase):
def test_getnode(self):
import sys
print(""" WARNING: uuid.getnode is unreliable on many platforms.
It is disabled until the code and/or test can be fixed properly.""", file=sys.__stdout__)
return
node1 = uuid.getnode()
self.check_node(node1, "getnode1")