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IStorageServer test for overlapping writes.

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This commit is contained in:
Itamar Turner-Trauring 2021-09-24 12:02:30 -04:00
parent 6ef3811112
commit c1f8e9f8c7
1 changed files with 23 additions and 3 deletions
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26
src/allmydata/test/test_istorageserver.py
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@ -24,7 +24,7 @@ from testtools import skipIf
from twisted.internet.defer import inlineCallbacks
from foolscap.api import Referenceable
from foolscap.api import Referenceable, RemoteException
from allmydata.interfaces import IStorageServer
from .common_system import SystemTestMixin
@ -248,11 +248,31 @@ class IStorageServerImmutableAPIsTestsMixin(object):
(yield buckets[2].callRemote("read", 0, 1024)), b"3" * 512 + b"4" * 512
)
@inlineCallbacks
def test_overlapping_writes(self):
"""
Overlapping writes in immutable uploads fail with ``OverlappingWriteError``.
Overlapping, non-identical writes in immutable uploads fail.
"""
1/0
storage_index, renew_secret, cancel_secret = (
new_storage_index(),
new_secret(),
new_secret(),
)
(_, allocated) = yield self.storage_server.allocate_buckets(
storage_index,
renew_secret,
cancel_secret,
sharenums={0},
allocated_size=30,
canary=Referenceable(),
)
yield allocated[0].callRemote("write", 0, b"1" * 10)
# Overlapping write that matches:
yield allocated[0].callRemote("write", 5, b"1" * 20)
# Overlapping write that doesn't match:
with self.assertRaises(RemoteException):
yield allocated[0].callRemote("write", 20, b"2" * 10)
class _FoolscapMixin(SystemTestMixin):