def test_ttl(self):
"""
Test the TTL handling. A warn function should have been called if they
differ, but that's all, it should not crash or raise.
"""
self.orig_logger = isc.xfrin.diff.logger
try:
isc.xfrin.diff.logger = self
diff = Diff(self, Name('example.org.'))
diff.add_data(self.__rrset1)
rrset2 = RRset(Name('a.example.org.'), self.__rrclass,
self.__type, RRTTL(120))
rrset2.add_rdata(Rdata(self.__type, self.__rrclass, '192.10.2.2'))
diff.add_data(rrset2)
rrset2 = RRset(Name('a.example.org.'), self.__rrclass,
self.__type, RRTTL(6000))
rrset2.add_rdata(Rdata(self.__type, self.__rrclass, '192.10.2.3'))
diff.add_data(rrset2)
# They should get compacted together and complain.
diff.compact()
self.assertEqual(1, len(diff.get_buffer()))
# The TTL stays on the first value, no matter if smaller or bigger
# ones come later.
self.assertEqual(self.__ttl, diff.get_buffer()[0][1].get_ttl())
self.assertTrue(self.__warn_called)
finally:
isc.xfrin.diff.logger = self.orig_logger
def test_commit(self):
"""
If we call a commit, it should first apply whatever changes are
left (we hook into that instead of checking the effect) and then
the commit on the updater should have been called.
Then we check it raises value error for whatever operation we try.
"""
diff = Diff(self, Name('example.org.'))
diff.add_data(self.__rrset1)
orig_apply = diff.apply
diff.apply = self.__mock_apply
diff.commit()
self.assertTrue(self.__apply_called)
self.assertTrue(self.__commit_called)
# The data should be handled by apply which we replaced.
self.assertEqual([], self.__data_operations)
# Now check all range of other methods raise ValueError
self.assertRaises(ValueError, diff.commit)
self.assertRaises(ValueError, diff.add_data, self.__rrset2)
self.assertRaises(ValueError, diff.delete_data, self.__rrset1)
self.assertRaises(ValueError, diff.find, Name('foo.example.org.'),
RRType.A())
self.assertRaises(ValueError, diff.find_all, Name('foo.example.org.'))
diff.apply = orig_apply
self.assertRaises(ValueError, diff.apply)
# This one does not state it should raise, so check it doesn't
# But it is NOP in this situation anyway
diff.compact()
def test_rrsig_ttl(self):
'''Similar to the previous test, but for RRSIGs of different covered
types.
They shouldn't be compacted.
'''
diff = Diff(self, Name('example.org.'))
rrsig1 = RRset(Name('example.org'), self.__rrclass,
RRType.RRSIG(), RRTTL(3600))
rrsig1.add_rdata(Rdata(RRType.RRSIG(), self.__rrclass,
'A 5 3 3600 20000101000000 20000201000000 ' +
'0 example.org. FAKEFAKEFAKE'))
diff.add_data(rrsig1)
rrsig2 = RRset(Name('example.org'), self.__rrclass,
RRType.RRSIG(), RRTTL(1800))
rrsig2.add_rdata(Rdata(RRType.RRSIG(), self.__rrclass,
'AAAA 5 3 3600 20000101000000 20000201000000 ' +
'1 example.org. FAKEFAKEFAKE'))
diff.add_data(rrsig2)
diff.compact()
self.assertEqual(2, len(diff.get_buffer()))
def test_apply(self):
"""
Schedule few additions and check the apply works by passing the
data into the updater.
"""
# Prepare the diff
diff = Diff(self, Name('example.org.'))
diff.add_data(self.__rrset1)
diff.delete_data(self.__rrset2)
dlist = [('add', self.__rrset1), ('delete', self.__rrset2)]
self.assertEqual(dlist, diff.get_buffer())
# Do the apply, hook the compact method
diff.compact = self.__mock_compact
diff.apply()
# It should call the compact
self.assertTrue(self.__compact_called)
# And pass the data. Our local history of what happened is the same
# format, so we can check the same way
self.assertEqual(dlist, self.__data_operations)
# And the buffer in diff should become empty, as everything
# got inside.
self.assertEqual([], diff.get_buffer())
def test_single_update_mode(self):
'''
Test single-update mode. In this mode, updates and deletes can
be done in any order, but there may only be one changeset.
For both updates and deletes, exactly one SOA rr must be given,
and it must be the first change.
'''
# full rrset for A (to check compact())
txt = RRset(Name('c.example.org.'), self.__rrclass, RRType.TXT(),
RRTTL(3600))
txt.add_rdata(Rdata(txt.get_type(), txt.get_class(), "one"))
txt.add_rdata(Rdata(txt.get_type(), txt.get_class(), "two"))
txt.add_rdata(Rdata(txt.get_type(), txt.get_class(), "three"))
a = RRset(Name('d.example.org.'), self.__rrclass, RRType.A(),
RRTTL(3600))
a.add_rdata(Rdata(a.get_type(), a.get_class(), "192.0.2.1"))
a.add_rdata(Rdata(a.get_type(), a.get_class(), "192.0.2.2"))
diff = Diff(self, Name('example.org.'), single_update_mode=True)
# adding a first should fail
self.assertRaises(ValueError, diff.add_data, a)
# But soa should work
diff.add_data(self.__rrset_soa)
# And then A should as well
diff.add_data(self.__rrset3)
diff.add_data(self.__rrset4)
diff.add_data(self.__rrset5)
# But another SOA should fail again
self.assertRaises(ValueError, diff.add_data, self.__rrset_soa)
# Same for delete
self.assertRaises(ValueError, diff.delete_data, self.__rrset6)
diff.delete_data(self.__rrset_soa)
diff.delete_data(self.__rrset6)
diff.delete_data(self.__rrset7)
self.assertRaises(ValueError, diff.delete_data, self.__rrset_soa)
# Not compacted yet, so the buffers should be as we
# filled them
(delbuf, addbuf) = diff.get_single_update_buffers()
self.assertEqual([('delete', self.__rrset_soa),
('delete', self.__rrset6),
('delete', self.__rrset7)], delbuf)
self.assertEqual([('add', self.__rrset_soa),
('add', self.__rrset3),
('add', self.__rrset4),
('add', self.__rrset5)], addbuf)
# Compact should compact the A records in both buffers
diff.compact()
(delbuf, addbuf) = diff.get_single_update_buffers()
# need rrset equality again :/
self.assertEqual(2, len(delbuf))
self.assertEqual(2, len(delbuf[0]))
self.assertEqual('delete', delbuf[0][0])
self.assertEqual(self.__rrset_soa.to_text(), delbuf[0][1].to_text())
self.assertEqual(2, len(delbuf[1]))
self.assertEqual('delete', delbuf[1][0])
self.assertEqual(a.to_text(), delbuf[1][1].to_text())
self.assertEqual(2, len(addbuf))
self.assertEqual(2, len(addbuf[0]))
self.assertEqual('add', addbuf[0][0])
self.assertEqual(self.__rrset_soa.to_text(), addbuf[0][1].to_text())
self.assertEqual(2, len(addbuf[1]))
self.assertEqual('add', addbuf[1][0])
self.assertEqual(txt.to_text(), addbuf[1][1].to_text())
# Apply should reset the buffers
diff.apply()
(delbuf, addbuf) = diff.get_single_update_buffers()
self.assertEqual([], delbuf)
self.assertEqual([], addbuf)
# Now the change has been applied, and the buffers are cleared,
# Adding non-SOA records should fail again.
self.assertRaises(ValueError, diff.add_data, a)
self.assertRaises(ValueError, diff.delete_data, a)
def test_compact(self):
"""
Test the compaction works as expected, eg. it compacts only consecutive
changes of the same operation and on the same domain/type.
The test case checks that it does merge them, but also puts some
different operations "in the middle", changes the type and name and
places the same kind of change further away of each other to see they
are not merged in that case.
"""
diff = Diff(self, Name('example.org.'))
# Check we can do a compact on empty data, it shouldn't break
diff.compact()
self.assertEqual([], diff.get_buffer())
# This data is the way it should look like after the compact
# ('operation', 'domain.prefix', 'type', ['rdata', 'rdata'])
# The notes say why the each of consecutive can't be merged
data = [
('add', 'a', 'A', ['192.0.2.1', '192.0.2.2']),
# Different type.
('add', 'a', 'AAAA', ['2001:db8::1', '2001:db8::2']),
# Different operation
('delete', 'a', 'AAAA', ['2001:db8::3']),
# Different domain
('delete', 'b', 'AAAA', ['2001:db8::4']),
# This does not get merged with the first, even if logically
# possible. We just don't do this.
('add', 'a', 'A', ['192.0.2.3'])
]
# Now, fill the data into the diff, in a "flat" way, one by one
for (op, nprefix, rrtype, rdata) in data:
name = Name(nprefix + '.example.org.')
rrtype_obj = RRType(rrtype)
for rdatum in rdata:
rrset = RRset(name, self.__rrclass, rrtype_obj, self.__ttl)
rrset.add_rdata(Rdata(rrtype_obj, self.__rrclass, rdatum))
if op == 'add':
diff.add_data(rrset)
else:
diff.delete_data(rrset)
# Compact it
diff.compact()
# Now check they got compacted. They should be in the same order as
# pushed inside. So it should be the same as data modulo being in
# the rrsets and isc.dns objects.
def check():
buf = diff.get_buffer()
self.assertEqual(len(data), len(buf))
for (expected, received) in zip(data, buf):
(eop, ename, etype, edata) = expected
(rop, rrrset) = received
self.assertEqual(eop, rop)
ename_obj = Name(ename + '.example.org.')
self.assertEqual(ename_obj, rrrset.get_name())
# We check on names to make sure they are printed nicely
self.assertEqual(etype, str(rrrset.get_type()))
rdata = rrrset.get_rdata()
self.assertEqual(len(edata), len(rdata))
# It should also preserve the order
for (edatum, rdatum) in zip(edata, rdata):
self.assertEqual(edatum, str(rdatum))
check()
# Try another compact does nothing, but survives
diff.compact()
check()