lbry-sdk/tests/unit/core/test_BlobManager.py
2017-06-23 10:24:27 -04:00

112 lines
3.7 KiB
Python

import tempfile
import shutil
import mock
import os
import random
import string
from tests.util import random_lbry_hash
from lbrynet.core.BlobManager import DiskBlobManager
from lbrynet.core.HashAnnouncer import DummyHashAnnouncer
from lbrynet.core.Peer import Peer
from lbrynet.core.cryptoutils import get_lbry_hash_obj
from twisted.trial import unittest
from twisted.internet import defer
class BlobManagerTest(unittest.TestCase):
def setUp(self):
self.blob_dir = tempfile.mkdtemp()
self.db_dir = tempfile.mkdtemp()
hash_announcer = DummyHashAnnouncer()
self.bm = DiskBlobManager(hash_announcer, self.blob_dir, self.db_dir)
self.peer = Peer('somehost',22)
def tearDown(self):
self.bm.stop()
shutil.rmtree(self.blob_dir)
shutil.rmtree(self.db_dir)
@defer.inlineCallbacks
def _create_and_add_blob(self):
# create and add blob to blob manager
data_len = random.randint(1,1000)
data = ''.join(random.choice(string.lowercase) for data_len in range(data_len))
hashobj = get_lbry_hash_obj()
hashobj.update(data)
out=hashobj.hexdigest()
blob_hash=out
# create new blob
yield self.bm.setup()
blob = yield self.bm.get_blob(blob_hash,len(data))
finished_d, write, cancel =yield blob.open_for_writing(self.peer)
yield write(data)
yield self.bm.blob_completed(blob)
yield self.bm.add_blob_to_upload_history(blob_hash,'test',len(data))
# check to see if blob is there
self.assertTrue(os.path.isfile(os.path.join(self.blob_dir,blob_hash)))
blobs = yield self.bm.get_all_verified_blobs()
self.assertTrue(blob_hash in blobs)
defer.returnValue(blob_hash)
@defer.inlineCallbacks
def test_create_blob(self):
blob_hashes = []
# create a bunch of blobs
for i in range(0,10):
blob_hash = yield self._create_and_add_blob()
blob_hashes.append(blob_hash)
blobs = yield self.bm.get_all_verified_blobs()
self.assertEqual(10,len(blobs))
@defer.inlineCallbacks
def test_delete_blob(self):
# create blob
blob_hash = yield self._create_and_add_blob()
blobs = yield self.bm.get_all_verified_blobs()
self.assertEqual(len(blobs),1)
# delete blob
yield self.bm.delete_blobs([blob_hash])
self.assertFalse(os.path.isfile(os.path.join(self.blob_dir,blob_hash)))
blobs = yield self.bm.get_all_verified_blobs()
self.assertEqual(len(blobs),0)
blobs = yield self.bm._get_all_blob_hashes()
self.assertEqual(len(blobs),0)
# delete blob that does not exist, nothing will
# happen
blob_hash= random_lbry_hash()
out = yield self.bm.delete_blobs([blob_hash])
@defer.inlineCallbacks
def test_delete_open_blob(self):
# Test that a blob that is opened for writing will not be deleted
# create blobs
blob_hashes =[]
for i in range(0,10):
blob_hash = yield self._create_and_add_blob()
blob_hashes.append(blob_hash)
blobs = yield self.bm.get_all_verified_blobs()
self.assertEqual(len(blobs),10)
# open the last blob
blob = yield self.bm.get_blob(blob_hashes[-1])
yield blob.open_for_writing(self.peer)
# delete the last blob and check if it still exists
out = yield self.bm.delete_blobs([blob_hash])
blobs = yield self.bm.get_all_verified_blobs()
self.assertEqual(len(blobs),10)
self.assertTrue(blob_hashes[-1] in blobs)
self.assertTrue(os.path.isfile(os.path.join(self.blob_dir,blob_hashes[-1])))