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# coding: utf-8
# -------------------------------------------------------------------------
# Copyright (c) Microsoft Corporation. All rights reserved.
# Licensed under the MIT License. See License.txt in the project root for
# license information.
# --------------------------------------------------------------------------
import os
import unittest
from azure.storage.blob import (
AppendBlobService,
)
from tests.testcase import (
StorageTestCase,
TestMode,
record,
)
#------------------------------------------------------------------------------
TEST_BLOB_PREFIX = 'blob'
FILE_PATH = 'blob_input.temp.dat'
LARGE_BLOB_SIZE = 64 * 1024
#------------------------------------------------------------------------------
class StorageAppendBlobTest(StorageTestCase):
def setUp(self):
super(StorageAppendBlobTest, self).setUp()
self.bs = self._create_storage_service(AppendBlobService, self.settings)
self.container_name = self.get_resource_name('utcontainer')
if not self.is_playback():
self.bs.create_container(self.container_name)
# test chunking functionality by reducing the size of each chunk,
# otherwise the tests would take too long to execute
self.bs.MAX_BLOCK_SIZE = 4 * 1024
def tearDown(self):
if not self.is_playback():
try:
self.bs.delete_container(self.container_name)
except:
pass
if os.path.isfile(FILE_PATH):
try:
os.remove(FILE_PATH)
except:
pass
return super(StorageAppendBlobTest, self).tearDown()
#--Helpers-----------------------------------------------------------------
def _get_blob_reference(self):
return self.get_resource_name(TEST_BLOB_PREFIX)
def _create_blob(self):
blob_name = self._get_blob_reference()
self.bs.create_blob(self.container_name, blob_name)
return blob_name
def assertBlobEqual(self, container_name, blob_name, expected_data):
actual_data = self.bs.get_blob_to_bytes(container_name, blob_name)
self.assertEqual(actual_data.content, expected_data)
class NonSeekableFile(object):
def __init__(self, wrapped_file):
self.wrapped_file = wrapped_file
def write(self, data):
self.wrapped_file.write(data)
def read(self, count):
return self.wrapped_file.read(count)
#--Test cases for block blobs --------------------------------------------
@record
def test_create_blob(self):
# Arrange
blob_name = self._get_blob_reference()
# Act
create_resp = self.bs.create_blob(self.container_name, blob_name)
blob = self.bs.get_blob_properties(self.container_name, blob_name)
# Assert
self.assertTrue(self.bs.exists(self.container_name, blob_name))
self.assertEqual(blob.properties.etag, create_resp.etag)
self.assertEqual(blob.properties.last_modified, create_resp.last_modified)
@record
def test_create_blob_with_lease_id(self):
# Arrange
blob_name = self._create_blob()
lease_id = self.bs.acquire_blob_lease(self.container_name, blob_name)
# Act
self.bs.create_blob(self.container_name, blob_name, lease_id=lease_id)
# Assert
self.assertTrue(self.bs.exists(self.container_name, blob_name))
@record
def test_create_blob_with_metadata(self):
# Arrange
metadata = {'hello': 'world', 'number': '42'}
blob_name = self._get_blob_reference()
# Act
self.bs.create_blob(self.container_name, blob_name, metadata=metadata)
# Assert
md = self.bs.get_blob_metadata(self.container_name, blob_name)
self.assertDictEqual(md, metadata)
@record
def test_append_block(self):
# Arrange
blob_name = self._create_blob()
# Act
for i in range(5):
resp = self.bs.append_block(self.container_name, blob_name,
u'block {0}'.format(i).encode('utf-8'))
self.assertEqual(resp.append_offset, 7 * i)
self.assertEqual(resp.committed_block_count, i + 1)
self.assertIsNotNone(resp.etag)
self.assertIsNotNone(resp.last_modified)
# Assert
self.assertBlobEqual(self.container_name, blob_name, b'block 0block 1block 2block 3block 4')
@record
def test_append_block_unicode(self):
# Arrange
blob_name = self._create_blob()
# Act
with self.assertRaises(TypeError):
resp = self.bs.append_block(self.container_name, blob_name, u'啊齄丂狛狜')
# Assert
@record
def test_append_block_with_md5(self):
# Arrange
blob_name = self._create_blob()
# Act
resp = self.bs.append_block(self.container_name, blob_name,
b'block',
validate_content=True)
# Assert
@record
def test_append_blob_from_bytes(self):
# Arrange
blob_name = self._create_blob()
# Act
data = b'abcdefghijklmnopqrstuvwxyz'
append_resp = self.bs.append_blob_from_bytes(self.container_name, blob_name, data)
blob = self.bs.get_blob_properties(self.container_name, blob_name)
# Assert
self.assertBlobEqual(self.container_name, blob_name, data)
self.assertEqual(blob.properties.etag, append_resp.etag)
self.assertEqual(blob.properties.last_modified, append_resp.last_modified)
@record
def test_append_blob_from_0_bytes(self):
# Arrange
blob_name = self._create_blob()
# Act
data = b''
append_resp = self.bs.append_blob_from_bytes(self.container_name, blob_name, data)
# Assert
self.assertBlobEqual(self.container_name, blob_name, data)
# appending nothing should not make any network call
self.assertIsNone(append_resp.etag)
self.assertIsNone(append_resp.last_modified)
@record
def test_append_blob_from_bytes_with_progress(self):
# Arrange
blob_name = self._create_blob()
data = b'abcdefghijklmnopqrstuvwxyz'
# Act
progress = []
def callback(current, total):
progress.append((current, total))
self.bs.append_blob_from_bytes(self.container_name, blob_name, data, progress_callback=callback)
# Assert
self.assertBlobEqual(self.container_name, blob_name, data)
self.assert_upload_progress(len(data), self.bs.MAX_BLOCK_SIZE, progress)
@record
def test_append_blob_from_bytes_with_index(self):
# Arrange
blob_name = self._create_blob()
# Act
data = b'abcdefghijklmnopqrstuvwxyz'
self.bs.append_blob_from_bytes(self.container_name, blob_name, data, 3)
# Assert
self.assertBlobEqual(self.container_name, blob_name, data[3:])
@record
def test_append_blob_from_bytes_with_index_and_count(self):
# Arrange
blob_name = self._create_blob()
# Act
data = b'abcdefghijklmnopqrstuvwxyz'
self.bs.append_blob_from_bytes(self.container_name, blob_name, data, 3, 5)
# Assert
self.assertBlobEqual(self.container_name, blob_name, data[3:8])
@record
def test_append_blob_from_bytes_chunked_upload(self):
# Arrange
blob_name = self._create_blob()
data = self.get_random_bytes(LARGE_BLOB_SIZE)
# Act
append_resp = self.bs.append_blob_from_bytes(self.container_name, blob_name, data)
blob = self.bs.get_blob_properties(self.container_name, blob_name)
# Assert
self.assertBlobEqual(self.container_name, blob_name, data)
self.assertEqual(blob.properties.etag, append_resp.etag)
self.assertEqual(blob.properties.last_modified, append_resp.last_modified)
@record
def test_append_blob_from_bytes_with_progress_chunked_upload(self):
# Arrange
blob_name = self._create_blob()
data = self.get_random_bytes(LARGE_BLOB_SIZE)
# Act
progress = []
def callback(current, total):
progress.append((current, total))
self.bs.append_blob_from_bytes(self.container_name, blob_name, data, progress_callback=callback)
# Assert
self.assertBlobEqual(self.container_name, blob_name, data)
self.assert_upload_progress(len(data), self.bs.MAX_BLOCK_SIZE, progress)
@record
def test_append_blob_from_bytes_chunked_upload_with_index_and_count(self):
# Arrange
blob_name = self._create_blob()
data = self.get_random_bytes(LARGE_BLOB_SIZE)
index = 33
blob_size = len(data) - 66
# Act
self.bs.append_blob_from_bytes(self.container_name, blob_name, data, index, blob_size)
# Assert
self.assertBlobEqual(self.container_name, blob_name, data[index:index + blob_size])
@record
def test_append_blob_from_path_chunked_upload(self):
# Arrange
blob_name = self._create_blob()
data = self.get_random_bytes(LARGE_BLOB_SIZE)
with open(FILE_PATH, 'wb') as stream:
stream.write(data)
# Act
append_resp = self.bs.append_blob_from_path(self.container_name, blob_name, FILE_PATH)
blob = self.bs.get_blob_properties(self.container_name, blob_name)
# Assert
self.assertBlobEqual(self.container_name, blob_name, data)
self.assertEqual(blob.properties.etag, append_resp.etag)
self.assertEqual(blob.properties.last_modified, append_resp.last_modified)
@record
def test_append_blob_from_path_with_progress_chunked_upload(self):
# Arrange
blob_name = self._create_blob()
data = self.get_random_bytes(LARGE_BLOB_SIZE)
with open(FILE_PATH, 'wb') as stream:
stream.write(data)
# Act
progress = []
def callback(current, total):
progress.append((current, total))
self.bs.append_blob_from_path(self.container_name, blob_name, FILE_PATH, progress_callback=callback)
# Assert
self.assertBlobEqual(self.container_name, blob_name, data)
self.assert_upload_progress(len(data), self.bs.MAX_BLOCK_SIZE, progress)
@record
def test_append_blob_from_stream_chunked_upload(self):
# Arrange
blob_name = self._create_blob()
data = self.get_random_bytes(LARGE_BLOB_SIZE)
with open(FILE_PATH, 'wb') as stream:
stream.write(data)
# Act
with open(FILE_PATH, 'rb') as stream:
append_resp = self.bs.append_blob_from_stream(self.container_name, blob_name, stream)
blob = self.bs.get_blob_properties(self.container_name, blob_name)
# Assert
self.assertBlobEqual(self.container_name, blob_name, data)
self.assertEqual(blob.properties.etag, append_resp.etag)
self.assertEqual(blob.properties.last_modified, append_resp.last_modified)
@record
def test_append_blob_from_stream_non_seekable_chunked_upload_known_size(self):
# Arrange
blob_name = self._create_blob()
data = self.get_random_bytes(LARGE_BLOB_SIZE)
with open(FILE_PATH, 'wb') as stream:
stream.write(data)
blob_size = len(data) - 66
# Act
with open(FILE_PATH, 'rb') as stream:
non_seekable_file = StorageAppendBlobTest.NonSeekableFile(stream)
self.bs.append_blob_from_stream(self.container_name, blob_name,
non_seekable_file, count=blob_size)
# Assert
self.assertBlobEqual(self.container_name, blob_name, data[:blob_size])
@record
def test_append_blob_from_stream_non_seekable_chunked_upload_unknown_size(self):
# Arrange
blob_name = self._create_blob()
data = self.get_random_bytes(LARGE_BLOB_SIZE)
with open(FILE_PATH, 'wb') as stream:
stream.write(data)
# Act
with open(FILE_PATH, 'rb') as stream:
non_seekable_file = StorageAppendBlobTest.NonSeekableFile(stream)
self.bs.append_blob_from_stream(self.container_name, blob_name, non_seekable_file)
# Assert
self.assertBlobEqual(self.container_name, blob_name, data)
@record
def test_append_blob_from_stream_with_multiple_appends(self):
# Arrange
blob_name = self._create_blob()
data = self.get_random_bytes(LARGE_BLOB_SIZE)
with open(FILE_PATH, 'wb') as stream1:
stream1.write(data)
with open(FILE_PATH, 'wb') as stream2:
stream2.write(data)
# Act
with open(FILE_PATH, 'rb') as stream1:
self.bs.append_blob_from_stream(self.container_name, blob_name, stream1)
with open(FILE_PATH, 'rb') as stream2:
self.bs.append_blob_from_stream(self.container_name, blob_name, stream2)
# Assert
data = data * 2
self.assertBlobEqual(self.container_name, blob_name, data)
@record
def test_append_blob_from_stream_chunked_upload_with_count(self):
# Arrange
blob_name = self._create_blob()
data = self.get_random_bytes(LARGE_BLOB_SIZE)
with open(FILE_PATH, 'wb') as stream:
stream.write(data)
# Act
blob_size = len(data) - 301
with open(FILE_PATH, 'rb') as stream:
self.bs.append_blob_from_stream(self.container_name, blob_name, stream, blob_size)
# Assert
self.assertBlobEqual(self.container_name, blob_name, data[:blob_size])
def test_append_blob_from_stream_chunked_upload_with_count_parallel(self):
# parallel tests introduce random order of requests, can only run live
if TestMode.need_recording_file(self.test_mode):
return
# Arrange
blob_name = self._create_blob()
data = self.get_random_bytes(LARGE_BLOB_SIZE)
with open(FILE_PATH, 'wb') as stream:
stream.write(data)
# Act
blob_size = len(data) - 301
with open(FILE_PATH, 'rb') as stream:
append_resp = self.bs.append_blob_from_stream(self.container_name, blob_name, stream, blob_size)
blob = self.bs.get_blob_properties(self.container_name, blob_name)
# Assert
self.assertBlobEqual(self.container_name, blob_name, data[:blob_size])
self.assertEqual(blob.properties.etag, append_resp.etag)
self.assertEqual(blob.properties.last_modified, append_resp.last_modified)
@record
def test_append_blob_from_text(self):
# Arrange
blob_name = self._create_blob()
text = u'hello 啊齄丂狛狜 world'
data = text.encode('utf-8')
# Act
append_resp = self.bs.append_blob_from_text(self.container_name, blob_name, text)
blob = self.bs.get_blob_properties(self.container_name, blob_name)
# Assert
self.assertBlobEqual(self.container_name, blob_name, data)
self.assertEqual(blob.properties.etag, append_resp.etag)
self.assertEqual(blob.properties.last_modified, append_resp.last_modified)
@record
def test_append_blob_from_text_with_encoding(self):
# Arrange
blob_name = self._create_blob()
text = u'hello 啊齄丂狛狜 world'
data = text.encode('utf-16')
# Act
self.bs.append_blob_from_text(self.container_name, blob_name, text, 'utf-16')
# Assert
self.assertBlobEqual(self.container_name, blob_name, data)
@record
def test_append_blob_from_text_with_encoding_and_progress(self):
# Arrange
blob_name = self._create_blob()
text = u'hello 啊齄丂狛狜 world'
data = text.encode('utf-16')
# Act
progress = []
def callback(current, total):
progress.append((current, total))
self.bs.append_blob_from_text(self.container_name, blob_name, text, 'utf-16',
progress_callback=callback)
# Assert
self.assert_upload_progress(len(data), self.bs.MAX_BLOCK_SIZE, progress)
@record
def test_append_blob_from_text_chunked_upload(self):
# Arrange
blob_name = self._create_blob()
data = self.get_random_text_data(LARGE_BLOB_SIZE)
encoded_data = data.encode('utf-8')
# Act
self.bs.append_blob_from_text(self.container_name, blob_name, data)
# Assert
self.assertBlobEqual(self.container_name, blob_name, encoded_data)
@record
def test_append_blob_with_md5(self):
# Arrange
blob_name = self._create_blob()
data = b'hello world'
# Act
self.bs.append_blob_from_bytes(self.container_name, blob_name, data,
validate_content=True)
# Assert
#------------------------------------------------------------------------------
if __name__ == '__main__':
unittest.main()
|
