225 lines
9.7 KiB
Python
225 lines
9.7 KiB
Python
import asyncio
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import tempfile
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import shutil
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import os
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from torba.testcase import AsyncioTestCase
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from lbry.error import InvalidDataError, InvalidBlobHashError
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from lbry.conf import Config
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from lbry.extras.daemon.storage import SQLiteStorage
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from lbry.blob.blob_manager import BlobManager
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from lbry.blob.blob_file import BlobFile, BlobBuffer, AbstractBlob
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class TestBlob(AsyncioTestCase):
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blob_hash = "7f5ab2def99f0ddd008da71db3a3772135f4002b19b7605840ed1034c8955431bd7079549e65e6b2a3b9c17c773073ed"
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blob_bytes = b'1' * ((2 * 2 ** 20) - 1)
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async def asyncSetUp(self):
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self.tmp_dir = tempfile.mkdtemp()
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self.addCleanup(lambda: shutil.rmtree(self.tmp_dir))
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self.loop = asyncio.get_running_loop()
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self.config = Config()
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self.storage = SQLiteStorage(self.config, ":memory:", self.loop)
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self.blob_manager = BlobManager(self.loop, self.tmp_dir, self.storage, self.config)
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await self.storage.open()
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def _get_blob(self, blob_class=AbstractBlob, blob_directory=None):
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blob = blob_class(self.loop, self.blob_hash, len(self.blob_bytes), self.blob_manager.blob_completed,
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blob_directory=blob_directory)
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self.assertFalse(blob.get_is_verified())
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self.addCleanup(blob.close)
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return blob
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async def _test_create_blob(self, blob_class=AbstractBlob, blob_directory=None):
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blob = self._get_blob(blob_class, blob_directory)
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writer = blob.get_blob_writer()
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writer.write(self.blob_bytes)
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await blob.verified.wait()
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self.assertTrue(blob.get_is_verified())
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await asyncio.sleep(0, loop=self.loop) # wait for the db save task
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return blob
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async def _test_close_writers_on_finished(self, blob_class=AbstractBlob, blob_directory=None):
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blob = self._get_blob(blob_class, blob_directory=blob_directory)
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writers = [blob.get_blob_writer('1.2.3.4', port) for port in range(5)]
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self.assertEqual(5, len(blob.writers))
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# test that writing too much causes the writer to fail with InvalidDataError and to be removed
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with self.assertRaises(InvalidDataError):
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writers[1].write(self.blob_bytes * 2)
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await writers[1].finished
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await asyncio.sleep(0, loop=self.loop)
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self.assertEqual(4, len(blob.writers))
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# write the blob
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other = writers[2]
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writers[3].write(self.blob_bytes)
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await blob.verified.wait()
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self.assertTrue(blob.get_is_verified())
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self.assertEqual(0, len(blob.writers))
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with self.assertRaises(IOError):
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other.write(self.blob_bytes)
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def _test_ioerror_if_length_not_set(self, blob_class=AbstractBlob, blob_directory=None):
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blob = blob_class(
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self.loop, self.blob_hash, blob_completed_callback=self.blob_manager.blob_completed,
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blob_directory=blob_directory
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)
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self.addCleanup(blob.close)
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writer = blob.get_blob_writer()
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with self.assertRaises(IOError):
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writer.write(b'')
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async def _test_invalid_blob_bytes(self, blob_class=AbstractBlob, blob_directory=None):
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blob = blob_class(
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self.loop, self.blob_hash, len(self.blob_bytes), blob_completed_callback=self.blob_manager.blob_completed,
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blob_directory=blob_directory
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)
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self.addCleanup(blob.close)
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writer = blob.get_blob_writer()
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writer.write(self.blob_bytes[:-4] + b'fake')
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with self.assertRaises(InvalidBlobHashError):
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await writer.finished
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async def test_add_blob_buffer_to_db(self):
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blob = await self._test_create_blob(BlobBuffer)
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db_status = await self.storage.get_blob_status(blob.blob_hash)
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self.assertEqual(db_status, 'pending')
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async def test_add_blob_file_to_db(self):
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blob = await self._test_create_blob(BlobFile, self.tmp_dir)
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db_status = await self.storage.get_blob_status(blob.blob_hash)
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self.assertEqual(db_status, 'finished')
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async def test_invalid_blob_bytes(self):
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await self._test_invalid_blob_bytes(BlobBuffer)
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await self._test_invalid_blob_bytes(BlobFile, self.tmp_dir)
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def test_ioerror_if_length_not_set(self):
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tmp_dir = tempfile.mkdtemp()
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self.addCleanup(lambda: shutil.rmtree(tmp_dir))
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self._test_ioerror_if_length_not_set(BlobBuffer)
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self._test_ioerror_if_length_not_set(BlobFile, tmp_dir)
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async def test_create_blob_file(self):
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tmp_dir = tempfile.mkdtemp()
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self.addCleanup(lambda: shutil.rmtree(tmp_dir))
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blob = await self._test_create_blob(BlobFile, tmp_dir)
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self.assertIsInstance(blob, BlobFile)
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self.assertTrue(os.path.isfile(blob.file_path))
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for _ in range(2):
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with blob.reader_context() as reader:
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self.assertEqual(self.blob_bytes, reader.read())
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async def test_create_blob_buffer(self):
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blob = await self._test_create_blob(BlobBuffer)
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self.assertIsInstance(blob, BlobBuffer)
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self.assertIsNotNone(blob._verified_bytes)
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# check we can only read the bytes once, and that the buffer is torn down
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with blob.reader_context() as reader:
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self.assertEqual(self.blob_bytes, reader.read())
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self.assertIsNone(blob._verified_bytes)
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with self.assertRaises(OSError):
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with blob.reader_context() as reader:
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self.assertEqual(self.blob_bytes, reader.read())
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self.assertIsNone(blob._verified_bytes)
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async def test_close_writers_on_finished(self):
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tmp_dir = tempfile.mkdtemp()
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self.addCleanup(lambda: shutil.rmtree(tmp_dir))
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await self._test_close_writers_on_finished(BlobBuffer)
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await self._test_close_writers_on_finished(BlobFile, tmp_dir)
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async def test_concurrency_and_premature_closes(self):
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blob_directory = tempfile.mkdtemp()
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self.addCleanup(lambda: shutil.rmtree(blob_directory))
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blob = self._get_blob(BlobBuffer, blob_directory=blob_directory)
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writer = blob.get_blob_writer('1.1.1.1', 1337)
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self.assertEqual(1, len(blob.writers))
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with self.assertRaises(OSError):
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blob.get_blob_writer('1.1.1.1', 1337)
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writer.close_handle()
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self.assertTrue(blob.writers[('1.1.1.1', 1337)].closed())
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writer = blob.get_blob_writer('1.1.1.1', 1337)
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self.assertEqual(blob.writers[('1.1.1.1', 1337)], writer)
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writer.close_handle()
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await asyncio.sleep(0.000000001) # flush callbacks
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self.assertEqual(0, len(blob.writers))
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async def test_delete(self):
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blob_buffer = await self._test_create_blob(BlobBuffer)
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self.assertIsInstance(blob_buffer, BlobBuffer)
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self.assertIsNotNone(blob_buffer._verified_bytes)
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self.assertTrue(blob_buffer.get_is_verified())
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blob_buffer.delete()
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self.assertIsNone(blob_buffer._verified_bytes)
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self.assertFalse(blob_buffer.get_is_verified())
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tmp_dir = tempfile.mkdtemp()
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self.addCleanup(lambda: shutil.rmtree(tmp_dir))
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blob_file = await self._test_create_blob(BlobFile, tmp_dir)
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self.assertIsInstance(blob_file, BlobFile)
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self.assertTrue(os.path.isfile(blob_file.file_path))
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self.assertTrue(blob_file.get_is_verified())
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blob_file.delete()
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self.assertFalse(os.path.isfile(blob_file.file_path))
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self.assertFalse(blob_file.get_is_verified())
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async def test_delete_corrupt(self):
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tmp_dir = tempfile.mkdtemp()
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self.addCleanup(lambda: shutil.rmtree(tmp_dir))
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blob = BlobFile(
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self.loop, self.blob_hash, len(self.blob_bytes), blob_completed_callback=self.blob_manager.blob_completed,
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blob_directory=tmp_dir
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)
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writer = blob.get_blob_writer()
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writer.write(self.blob_bytes)
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await blob.verified.wait()
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blob.close()
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blob = BlobFile(
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self.loop, self.blob_hash, len(self.blob_bytes), blob_completed_callback=self.blob_manager.blob_completed,
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blob_directory=tmp_dir
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)
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self.assertTrue(blob.get_is_verified())
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with open(blob.file_path, 'wb+') as f:
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f.write(b'\x00')
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blob = BlobFile(
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self.loop, self.blob_hash, len(self.blob_bytes), blob_completed_callback=self.blob_manager.blob_completed,
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blob_directory=tmp_dir
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)
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self.assertFalse(blob.get_is_verified())
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self.assertFalse(os.path.isfile(blob.file_path))
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def test_invalid_blob_hash(self):
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self.assertRaises(InvalidBlobHashError, BlobBuffer, self.loop, '', len(self.blob_bytes))
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self.assertRaises(InvalidBlobHashError, BlobBuffer, self.loop, 'x' * 96, len(self.blob_bytes))
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self.assertRaises(InvalidBlobHashError, BlobBuffer, self.loop, 'a' * 97, len(self.blob_bytes))
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async def _test_close_reader(self, blob_class=AbstractBlob, blob_directory=None):
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blob = await self._test_create_blob(blob_class, blob_directory)
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reader = blob.reader_context()
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self.assertEqual(0, len(blob.readers))
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async def read_blob_buffer():
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with reader as read_handle:
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self.assertEqual(1, len(blob.readers))
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await asyncio.sleep(2, loop=self.loop)
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self.assertEqual(0, len(blob.readers))
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return read_handle.read()
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self.loop.call_later(1, blob.close)
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with self.assertRaises(ValueError) as err:
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read_task = self.loop.create_task(read_blob_buffer())
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await read_task
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self.assertEqual(err.exception, ValueError("I/O operation on closed file"))
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async def test_close_reader(self):
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tmp_dir = tempfile.mkdtemp()
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self.addCleanup(lambda: shutil.rmtree(tmp_dir))
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await self._test_close_reader(BlobBuffer)
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await self._test_close_reader(BlobFile, tmp_dir)
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