103 lines
4.3 KiB
Python
103 lines
4.3 KiB
Python
import os
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import time
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import unittest
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from unittest import mock
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import asyncio
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from lbrynet.blob_exchange.serialization import BlobResponse
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from lbrynet.blob_exchange.server import BlobServerProtocol
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from lbrynet.conf import Config
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from lbrynet.stream.descriptor import StreamDescriptor
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from lbrynet.stream.downloader import StreamDownloader
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from lbrynet.dht.node import Node
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from lbrynet.dht.peer import KademliaPeer
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from lbrynet.blob.blob_file import MAX_BLOB_SIZE
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from tests.unit.blob_exchange.test_transfer_blob import BlobExchangeTestBase
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class TestStreamDownloader(BlobExchangeTestBase):
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async def setup_stream(self, blob_count: int = 10):
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self.stream_bytes = b''
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for _ in range(blob_count):
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self.stream_bytes += os.urandom((MAX_BLOB_SIZE - 1))
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# create the stream
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file_path = os.path.join(self.server_dir, "test_file")
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with open(file_path, 'wb') as f:
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f.write(self.stream_bytes)
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descriptor = await StreamDescriptor.create_stream(self.loop, self.server_blob_manager.blob_dir, file_path)
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self.sd_hash = descriptor.calculate_sd_hash()
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conf = Config(data_dir=self.server_dir, wallet_dir=self.server_dir, download_dir=self.server_dir,
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reflector_servers=[])
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self.downloader = StreamDownloader(self.loop, conf, self.client_blob_manager, self.sd_hash)
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async def _test_transfer_stream(self, blob_count: int, mock_accumulate_peers=None):
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await self.setup_stream(blob_count)
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mock_node = mock.Mock(spec=Node)
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def _mock_accumulate_peers(q1, q2):
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async def _task():
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pass
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q2.put_nowait([self.server_from_client])
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return q2, self.loop.create_task(_task())
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mock_node.accumulate_peers = mock_accumulate_peers or _mock_accumulate_peers
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self.downloader.download(mock_node)
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await self.downloader.stream_finished_event.wait()
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self.assertTrue(self.downloader.stream_handle.closed)
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self.assertTrue(os.path.isfile(self.downloader.output_path))
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self.downloader.stop()
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self.assertIs(self.downloader.stream_handle, None)
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self.assertTrue(os.path.isfile(self.downloader.output_path))
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with open(self.downloader.output_path, 'rb') as f:
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self.assertEqual(f.read(), self.stream_bytes)
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await asyncio.sleep(0.01)
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async def test_transfer_stream(self):
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await self._test_transfer_stream(10)
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@unittest.SkipTest
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async def test_transfer_hundred_blob_stream(self):
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await self._test_transfer_stream(100)
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async def test_transfer_stream_bad_first_peer_good_second(self):
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await self.setup_stream(2)
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mock_node = mock.Mock(spec=Node)
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q = asyncio.Queue()
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bad_peer = KademliaPeer(self.loop, "127.0.0.1", b'2' * 48, tcp_port=3334)
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def _mock_accumulate_peers(q1, q2):
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async def _task():
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pass
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q2.put_nowait([bad_peer])
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self.loop.call_later(1, q2.put_nowait, [self.server_from_client])
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return q2, self.loop.create_task(_task())
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mock_node.accumulate_peers = _mock_accumulate_peers
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self.downloader.download(mock_node)
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await self.downloader.stream_finished_event.wait()
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self.assertTrue(os.path.isfile(self.downloader.output_path))
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with open(self.downloader.output_path, 'rb') as f:
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self.assertEqual(f.read(), self.stream_bytes)
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# self.assertIs(self.server_from_client.tcp_last_down, None)
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# self.assertIsNot(bad_peer.tcp_last_down, None)
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async def test_client_chunked_response(self):
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self.server.stop_server()
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class ChunkedServerProtocol(BlobServerProtocol):
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def send_response(self, responses):
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to_send = []
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while responses:
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to_send.append(responses.pop())
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for byte in BlobResponse(to_send).serialize():
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self.transport.write(bytes([byte]))
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self.server.server_protocol_class = ChunkedServerProtocol
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self.server.start_server(33333, '127.0.0.1')
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self.assertEqual(0, len(self.client_blob_manager.completed_blob_hashes))
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await asyncio.wait_for(self._test_transfer_stream(10), timeout=2)
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self.assertEqual(11, len(self.client_blob_manager.completed_blob_hashes))
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