Issue #23015: Improved testing of the uuid module.
This commit is contained in:
Serhiy Storchaka
commit
0e32ea1089
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@ -15,9 +15,6 @@ def importable(name):
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return False
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class TestUUID(unittest.TestCase):
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last_node = None
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source2node = {}
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def test_UUID(self):
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equal = self.assertEqual
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ascending = []
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@ -295,118 +292,13 @@ class TestUUID(unittest.TestCase):
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badtype(lambda: setattr(u, 'clock_seq_low', 0))
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badtype(lambda: setattr(u, 'node', 0))
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def check_node(self, node, source):
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message = "%012x is not an RFC 4122 node ID" % node
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self.assertTrue(0 < node, message)
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self.assertTrue(node < (1 << 48), message)
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TestUUID.source2node[source] = node
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if TestUUID.last_node:
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if TestUUID.last_node != node:
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msg = "different sources disagree on node:\n"
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for s, n in TestUUID.source2node.items():
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msg += " from source %r, node was %012x\n" % (s, n)
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# There's actually no reason to expect the MAC addresses
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# to agree across various methods -- e.g., a box may have
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# multiple network interfaces, and different ways of getting
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# a MAC address may favor different HW.
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##self.fail(msg)
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else:
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TestUUID.last_node = node
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@unittest.skipUnless(os.name == 'posix', 'requires Posix')
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def test_ifconfig_getnode(self):
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node = uuid._ifconfig_getnode()
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if node is not None:
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self.check_node(node, 'ifconfig')
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@unittest.skipUnless(os.name == 'posix', 'requires Posix')
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def test_ip_getnode(self):
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node = uuid._ip_getnode()
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if node is not None:
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self.check_node(node, 'ip')
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@unittest.skipUnless(os.name == 'posix', 'requires Posix')
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def test_arp_getnode(self):
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node = uuid._arp_getnode()
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if node is not None:
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self.check_node(node, 'arp')
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@unittest.skipUnless(os.name == 'posix', 'requires Posix')
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def test_lanscan_getnode(self):
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node = uuid._lanscan_getnode()
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if node is not None:
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self.check_node(node, 'lanscan')
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@unittest.skipUnless(os.name == 'posix', 'requires Posix')
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def test_netstat_getnode(self):
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node = uuid._netstat_getnode()
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if node is not None:
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self.check_node(node, 'netstat')
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@unittest.skipUnless(os.name == 'nt', 'requires Windows')
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def test_ipconfig_getnode(self):
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node = uuid._ipconfig_getnode()
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if node is not None:
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self.check_node(node, 'ipconfig')
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@unittest.skipUnless(importable('win32wnet'), 'requires win32wnet')
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@unittest.skipUnless(importable('netbios'), 'requires netbios')
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def test_netbios_getnode(self):
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self.check_node(uuid._netbios_getnode(), 'netbios')
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def test_random_getnode(self):
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node = uuid._random_getnode()
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# Least significant bit of first octet must be set.
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self.assertTrue(node & 0x010000000000)
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self.assertTrue(node < (1 << 48))
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@unittest.skipUnless(os.name == 'posix', 'requires Posix')
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@unittest.skipUnless(importable('ctypes'), 'requires ctypes')
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def test_unixdll_getnode(self):
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try: # Issues 1481, 3581: _uuid_generate_time() might be None.
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self.check_node(uuid._unixdll_getnode(), 'unixdll')
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except TypeError:
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pass
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@unittest.skipUnless(os.name == 'nt', 'requires Windows')
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@unittest.skipUnless(importable('ctypes'), 'requires ctypes')
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def test_windll_getnode(self):
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self.check_node(uuid._windll_getnode(), 'windll')
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def test_getnode(self):
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node1 = uuid.getnode()
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self.check_node(node1, "getnode1")
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self.assertTrue(0 < node1 < (1 << 48), '%012x' % node1)
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# Test it again to ensure consistency.
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node2 = uuid.getnode()
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self.check_node(node2, "getnode2")
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self.assertEqual(node1, node2)
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@unittest.skipUnless(os.name == 'posix', 'requires Posix')
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def test_find_mac(self):
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data = '''
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fake hwaddr
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cscotun0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
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eth0 Link encap:Ethernet HWaddr 12:34:56:78:90:ab
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'''
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popen = unittest.mock.MagicMock()
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popen.stdout = io.BytesIO(data.encode())
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with unittest.mock.patch.object(shutil, 'which',
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return_value='/sbin/ifconfig'):
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with unittest.mock.patch.object(subprocess, 'Popen',
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return_value=popen):
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mac = uuid._find_mac(
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command='ifconfig',
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args='',
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hw_identifiers=[b'hwaddr'],
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get_index=lambda x: x + 1,
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)
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self.assertEqual(mac, 0x1234567890ab)
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self.assertEqual(node1, node2, '%012x != %012x' % (node1, node2))
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@unittest.skipUnless(importable('ctypes'), 'requires ctypes')
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def test_uuid1(self):
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@ -518,5 +410,101 @@ eth0 Link encap:Ethernet HWaddr 12:34:56:78:90:ab
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self.assertNotEqual(parent_value, child_value)
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class TestInternals(unittest.TestCase):
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@unittest.skipUnless(os.name == 'posix', 'requires Posix')
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def test_find_mac(self):
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data = '''
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fake hwaddr
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cscotun0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
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eth0 Link encap:Ethernet HWaddr 12:34:56:78:90:ab
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'''
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popen = unittest.mock.MagicMock()
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popen.stdout = io.BytesIO(data.encode())
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with unittest.mock.patch.object(shutil, 'which',
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return_value='/sbin/ifconfig'):
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with unittest.mock.patch.object(subprocess, 'Popen',
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return_value=popen):
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mac = uuid._find_mac(
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command='ifconfig',
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args='',
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hw_identifiers=[b'hwaddr'],
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get_index=lambda x: x + 1,
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)
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self.assertEqual(mac, 0x1234567890ab)
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def check_node(self, node, requires=None, network=False):
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if requires and node is None:
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self.skipTest('requires ' + requires)
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hex = '%012x' % node
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if support.verbose >= 2:
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print(hex, end=' ')
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if network:
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# 47 bit will never be set in IEEE 802 addresses obtained
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# from network cards.
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self.assertFalse(node & 0x010000000000, hex)
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self.assertTrue(0 < node < (1 << 48),
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"%s is not an RFC 4122 node ID" % hex)
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@unittest.skipUnless(os.name == 'posix', 'requires Posix')
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def test_ifconfig_getnode(self):
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node = uuid._ifconfig_getnode()
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self.check_node(node, 'ifconfig', True)
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@unittest.skipUnless(os.name == 'posix', 'requires Posix')
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def test_ip_getnode(self):
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node = uuid._ip_getnode()
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self.check_node(node, 'ip', True)
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@unittest.skipUnless(os.name == 'posix', 'requires Posix')
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def test_arp_getnode(self):
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node = uuid._arp_getnode()
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self.check_node(node, 'arp', True)
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@unittest.skipUnless(os.name == 'posix', 'requires Posix')
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def test_lanscan_getnode(self):
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node = uuid._lanscan_getnode()
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self.check_node(node, 'lanscan', True)
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@unittest.skipUnless(os.name == 'posix', 'requires Posix')
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def test_netstat_getnode(self):
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node = uuid._netstat_getnode()
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self.check_node(node, 'netstat', True)
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@unittest.skipUnless(os.name == 'nt', 'requires Windows')
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def test_ipconfig_getnode(self):
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node = uuid._ipconfig_getnode()
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self.check_node(node, 'ipconfig', True)
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@unittest.skipUnless(importable('win32wnet'), 'requires win32wnet')
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@unittest.skipUnless(importable('netbios'), 'requires netbios')
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def test_netbios_getnode(self):
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node = uuid._netbios_getnode()
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self.check_node(node, network=True)
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def test_random_getnode(self):
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node = uuid._random_getnode()
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# Least significant bit of first octet must be set.
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self.assertTrue(node & 0x010000000000, '%012x' % node)
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self.check_node(node)
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@unittest.skipUnless(os.name == 'posix', 'requires Posix')
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@unittest.skipUnless(importable('ctypes'), 'requires ctypes')
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def test_unixdll_getnode(self):
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try: # Issues 1481, 3581: _uuid_generate_time() might be None.
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node = uuid._unixdll_getnode()
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except TypeError:
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self.skipTest('requires uuid_generate_time')
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self.check_node(node)
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@unittest.skipUnless(os.name == 'nt', 'requires Windows')
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@unittest.skipUnless(importable('ctypes'), 'requires ctypes')
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def test_windll_getnode(self):
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node = uuid._windll_getnode()
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self.check_node(node)
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if __name__ == '__main__':
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unittest.main()
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