def testRaisesWhenTryingToReadTooMuchDataAtOnce(self):
with test_lib.ConfigOverrider({"Server.max_unbound_read_size": 4}):
# Recreate to make sure the new config option value is applied.
self.blob_stream = file_store.BlobStream(None, self.blob_refs, None)
self.blob_stream.read(4)
with self.assertRaises(file_store.OversizedReadError):
self.blob_stream.read() # This would implicitly read 6 bytes.
def testRaisesWhenTryingToReadTooMuchDataAtOnce(self):
with test_lib.ConfigOverrider(
{"Server.max_unbound_read_size": self.blob_size}):
# Recreate to make sure the new config option value is applied.
self.blob_stream = file_store.BlobStream(self.blob_refs, None)
self.blob_stream.read(self.blob_size)
with self.assertRaises(file_store.OversizedRead):
self.blob_stream.read(self.blob_size + 1)
def setUp(self):
super(BlobStreamTest, self).setUp()
self.blob_size = 10
self.blob_data, self.blob_refs = _GenerateBlobRefs(
self.blob_size, b"abcde12345")
blob_ids = [ref.blob_id for ref in self.blob_refs]
data_store.BLOBS.WriteBlobs(dict(zip(blob_ids, self.blob_data)))
self.blob_stream = file_store.BlobStream(None, self.blob_refs, None)
def testWhenReadingWholeFileAndWholeFileSizeIsTooBig(self):
self.blob_stream.read()
self.blob_stream.seek(0)
with test_lib.ConfigOverrider(
{"Server.max_unbound_read_size": self.blob_size * 10 - 1}):
# Recreate to make sure the new config option value is applied.
self.blob_stream = file_store.BlobStream(self.blob_refs, None)
with self.assertRaises(file_store.OversizedRead):
self.blob_stream.read()
def setUp(self):
super(BlobStreamTest, self).setUp()
self.blob_size = 10
self.blob_data = [c * self.blob_size for c in b"abcde12345"]
self.blob_ids = [
rdf_objects.BlobID.FromBlobData(bd) for bd in self.blob_data
]
self.blob_refs = [
rdf_objects.BlobReference(
offset=i * self.blob_size, size=self.blob_size, blob_id=blob_id)
for i, blob_id in enumerate(self.blob_ids)
]
data_store.BLOBS.WriteBlobs(dict(zip(self.blob_ids, self.blob_data)))
self.blob_stream = file_store.BlobStream(self.blob_refs, None)
def testAllowsReadingAboveLimitWhenSpecifiedManually(self):
with test_lib.ConfigOverrider({"Server.max_unbound_read_size": 1}):
# Recreate to make sure the new config option value is applied.
self.blob_stream = file_store.BlobStream(None, self.blob_refs,
None)
self.blob_stream.read(self.blob_size)
def testRaisesIfBlobIsMissing(self):
_, missing_blob_refs = vfs_test_lib.GenerateBlobRefs(
self.blob_size, "0")
blob_stream = file_store.BlobStream(None, missing_blob_refs, None)
with self.assertRaises(file_store.BlobNotFoundError):
blob_stream.read(1)
