async def data_lake_service_sample():
# Instantiate a DataLakeServiceClient using a connection string
# [START create_datalake_service_client]
from azure.storage.filedatalake.aio import DataLakeServiceClient
datalake_service_client = DataLakeServiceClient.from_connection_string(
connection_string)
# [END create_datalake_service_client]
# Instantiate a DataLakeServiceClient Azure Identity credentials.
# [START create_datalake_service_client_oauth]
from azure.identity.aio import ClientSecretCredential
token_credential = ClientSecretCredential(
active_directory_tenant_id,
active_directory_application_id,
active_directory_application_secret,
)
datalake_service_client = DataLakeServiceClient(
"https://{}.dfs.core.windows.net".format(account_name),
credential=token_credential)
# [END create_datalake_service_client_oauth]
async with datalake_service_client:
# get user delegation key
# [START get_user_delegation_key]
from datetime import datetime, timedelta
user_delegation_key = await datalake_service_client.get_user_delegation_key(
datetime.utcnow(),
datetime.utcnow() + timedelta(hours=1))
# [END get_user_delegation_key]
# Create file systems
# [START create_file_system_from_service_client]
await datalake_service_client.create_file_system("filesystem")
# [END create_file_system_from_service_client]
file_system_client = await datalake_service_client.create_file_system(
"anotherfilesystem")
# List file systems
# [START list_file_systems]
file_systems = datalake_service_client.list_file_systems()
async for file_system in file_systems:
print(file_system.name)
# [END list_file_systems]
# Get Clients from DataLakeServiceClient
file_system_client = datalake_service_client.get_file_system_client(
file_system_client.file_system_name)
# [START get_directory_client_from_service_client]
directory_client = datalake_service_client.get_directory_client(
file_system_client.file_system_name, "mydirectory")
# [END get_directory_client_from_service_client]
# [START get_file_client_from_service_client]
file_client = datalake_service_client.get_file_client(
file_system_client.file_system_name, "myfile")
# [END get_file_client_from_service_client]
# Create file and set properties
metadata = {'hello': 'world', 'number': '42'}
from azure.storage.filedatalake import ContentSettings
content_settings = ContentSettings(content_language='spanish',
content_disposition='inline')
await file_client.create_file(content_settings=content_settings)
await file_client.set_metadata(metadata=metadata)
file_props = await file_client.get_file_properties()
print(file_props.metadata)
# Create file/directory and set properties
await directory_client.create_directory(
content_settings=content_settings, metadata=metadata)
dir_props = await directory_client.get_directory_properties()
print(dir_props.metadata)
# Delete File Systems
# [START delete_file_system_from_service_client]
await datalake_service_client.delete_file_system("filesystem")
# [END delete_file_system_from_service_client]
await file_system_client.delete_file_system()
await token_credential.close()
class FileTest(StorageTestCase):
def setUp(self):
super(FileTest, self).setUp()
url = self._get_account_url()
self.dsc = DataLakeServiceClient(
url, credential=self.settings.STORAGE_DATA_LAKE_ACCOUNT_KEY)
loop = asyncio.get_event_loop()
loop.run_until_complete(self.dsc.__aenter__())
self.config = self.dsc._config
self.file_system_name = self.get_resource_name('filesystem')
if not self.is_playback():
file_system = self.dsc.get_file_system_client(
self.file_system_name)
try:
loop = asyncio.get_event_loop()
loop.run_until_complete(
file_system.create_file_system(timeout=5))
except ResourceExistsError:
pass
def tearDown(self):
if not self.is_playback():
try:
loop = asyncio.get_event_loop()
loop.run_until_complete(
self.dsc.delete_file_system(self.file_system_name))
loop.run_until_complete(self.dsc.__aexit__())
except:
pass
return super(FileTest, self).tearDown()
# --Helpers-----------------------------------------------------------------
def _get_directory_reference(self, prefix=TEST_DIRECTORY_PREFIX):
directory_name = self.get_resource_name(prefix)
return directory_name
def _get_file_reference(self, prefix=TEST_FILE_PREFIX):
file_name = self.get_resource_name(prefix)
return file_name
async def _create_file_system(self):
return await self.dsc.create_file_system(
self._get_file_system_reference())
async def _create_directory_and_return_client(self, directory=None):
directory_name = directory if directory else self._get_directory_reference(
)
directory_client = self.dsc.get_directory_client(
self.file_system_name, directory_name)
await directory_client.create_directory()
return directory_client
async def _create_file_and_return_client(self, directory="", file=None):
if directory:
await self._create_directory_and_return_client(directory)
if not file:
file = self._get_file_reference()
file_client = self.dsc.get_file_client(self.file_system_name,
directory + '/' + file)
await file_client.create_file()
return file_client
# --Helpers-----------------------------------------------------------------
async def _test_create_file(self):
# Arrange
directory_name = self._get_directory_reference()
# Create a directory to put the file under that
directory_client = self.dsc.get_directory_client(
self.file_system_name, directory_name)
await directory_client.create_directory()
file_client = directory_client.get_file_client('filename')
response = await file_client.create_file()
# Assert
self.assertIsNotNone(response)
@record
def test_create_file_async(self):
loop = asyncio.get_event_loop()
loop.run_until_complete(self._test_create_file())
async def _test_create_file_using_oauth_token_credential(self):
# Arrange
file_name = self._get_file_reference()
token_credential = self.generate_async_oauth_token()
# Create a directory to put the file under that
file_client = DataLakeFileClient(self.dsc.url,
self.file_system_name,
file_name,
credential=token_credential)
response = await file_client.create_file()
# Assert
self.assertIsNotNone(response)
@record
def test_create_file_using_oauth_token_credential_async(self):
loop = asyncio.get_event_loop()
loop.run_until_complete(
self._test_create_file_using_oauth_token_credential())
async def _test_create_file_with_existing_name(self):
# Arrange
file_client = await self._create_file_and_return_client()
with self.assertRaises(ResourceExistsError):
# if the file exists then throw error
# if_none_match='*' is to make sure no existing file
await file_client.create_file(
match_condition=MatchConditions.IfMissing)
@record
def test_create_file_with_existing_name_async(self):
loop = asyncio.get_event_loop()
loop.run_until_complete(self._test_create_file_with_existing_name())
async def _test_create_file_with_lease_id(self):
# Arrange
directory_name = self._get_directory_reference()
directory_client = self.dsc.get_directory_client(
self.file_system_name, directory_name)
await directory_client.create_directory()
file_client = directory_client.get_file_client('filename')
# Act
await file_client.create_file()
lease = await file_client.acquire_lease()
create_resp = await file_client.create_file(lease=lease)
# Assert
file_properties = await file_client.get_file_properties()
self.assertIsNotNone(file_properties)
self.assertEqual(file_properties.etag, create_resp.get('etag'))
self.assertEqual(file_properties.last_modified,
create_resp.get('last_modified'))
@record
def test_create_file_with_lease_id_async(self):
loop = asyncio.get_event_loop()
loop.run_until_complete(self._test_create_file_with_lease_id())
async def _test_create_file_under_root_directory(self):
# Arrange
# get a file client to interact with the file under root directory
file_client = self.dsc.get_file_client(self.file_system_name,
"filename")
response = await file_client.create_file()
# Assert
self.assertIsNotNone(response)
@record
def test_create_file_under_root_directory_async(self):
loop = asyncio.get_event_loop()
loop.run_until_complete(self._test_create_file_under_root_directory())
async def _test_append_data(self):
directory_name = self._get_directory_reference()
# Create a directory to put the file under that
directory_client = self.dsc.get_directory_client(
self.file_system_name, directory_name)
await directory_client.create_directory()
file_client = directory_client.get_file_client('filename')
await file_client.create_file()
# Act
response = await file_client.append_data(b'abc', 0, 3)
self.assertIsNotNone(response)
@record
def test_append_data_async(self):
loop = asyncio.get_event_loop()
loop.run_until_complete(self._test_append_data())
async def _test_append_empty_data(self):
file_client = await self._create_file_and_return_client()
# Act
await file_client.flush_data(0)
file_props = await file_client.get_file_properties()
self.assertIsNotNone(file_props['size'], 0)
@record
def test_append_empty_data_async(self):
loop = asyncio.get_event_loop()
loop.run_until_complete(self._test_append_empty_data())
async def _test_flush_data(self):
directory_name = self._get_directory_reference()
# Create a directory to put the file under that
directory_client = self.dsc.get_directory_client(
self.file_system_name, directory_name)
await directory_client.create_directory()
file_client = directory_client.get_file_client('filename')
await file_client.create_file()
# Act
await file_client.append_data(b'abc', 0, 3)
response = await file_client.flush_data(3)
# Assert
prop = await file_client.get_file_properties()
self.assertIsNotNone(response)
self.assertEqual(prop['size'], 3)
@record
def test_flush_data_async(self):
loop = asyncio.get_event_loop()
loop.run_until_complete(self._test_flush_data())
async def _test_flush_data_with_match_condition(self):
directory_name = self._get_directory_reference()
# Create a directory to put the file under that
directory_client = self.dsc.get_directory_client(
self.file_system_name, directory_name)
await directory_client.create_directory()
file_client = directory_client.get_file_client('filename')
resp = await file_client.create_file()
# Act
await file_client.append_data(b'abc', 0, 3)
# flush is successful because it isn't touched
response = await file_client.flush_data(
3,
etag=resp['etag'],
match_condition=MatchConditions.IfNotModified)
await file_client.append_data(b'abc', 3, 3)
with self.assertRaises(ResourceModifiedError):
# flush is unsuccessful because extra data were appended.
await file_client.flush_data(
6,
etag=resp['etag'],
match_condition=MatchConditions.IfNotModified)
@record
def test_flush_data_with_match_condition_async(self):
loop = asyncio.get_event_loop()
loop.run_until_complete(self._test_flush_data_with_match_condition())
async def _test_upload_data(self):
# parallel upload cannot be recorded
if TestMode.need_recording_file(self.test_mode):
return
directory_name = self._get_directory_reference()
# Create a directory to put the file under that
directory_client = self.dsc.get_directory_client(
self.file_system_name, directory_name)
await directory_client.create_directory()
file_client = directory_client.get_file_client('filename')
data = self.get_random_bytes(400 * 1024)
await file_client.upload_data(data, overwrite=True, max_concurrency=5)
downloaded_data = await (await file_client.download_file()).readall()
self.assertEqual(data, downloaded_data)
def test_upload_data_async(self):
loop = asyncio.get_event_loop()
loop.run_until_complete(self._test_upload_data())
async def _test_upload_data_to_existing_file_async(self):
directory_name = self._get_directory_reference()
# Create a directory to put the file under that
directory_client = self.dsc.get_directory_client(
self.file_system_name, directory_name)
await directory_client.create_directory()
# create an existing file
file_client = directory_client.get_file_client('filename')
await file_client.create_file()
await file_client.append_data(b"abc", 0)
await file_client.flush_data(3)
# to override the existing file
data = self.get_random_bytes(100)
with self.assertRaises(HttpResponseError):
await file_client.upload_data(data, max_concurrency=5)
await file_client.upload_data(data, overwrite=True, max_concurrency=5)
downloaded_data = await (await file_client.download_file()).readall()
self.assertEqual(data, downloaded_data)
@record
def test_upload_data_to_existing_file_async(self):
loop = asyncio.get_event_loop()
loop.run_until_complete(
self._test_upload_data_to_existing_file_async())
async def _test_upload_data_to_existing_file_with_content_settings_async(
self):
# etag in async recording file cannot be parsed properly
if TestMode.need_recording_file(self.test_mode):
return
directory_name = self._get_directory_reference()
# Create a directory to put the file under that
directory_client = self.dsc.get_directory_client(
self.file_system_name, directory_name)
await directory_client.create_directory()
# create an existing file
file_client = directory_client.get_file_client('filename')
resp = await file_client.create_file()
etag = resp['etag']
# to override the existing file
data = self.get_random_bytes(100)
content_settings = ContentSettings(content_language='spanish',
content_disposition='inline')
await file_client.upload_data(
data,
max_concurrency=5,
content_settings=content_settings,
etag=etag,
match_condition=MatchConditions.IfNotModified)
downloaded_data = await (await file_client.download_file()).readall()
properties = await file_client.get_file_properties()
self.assertEqual(data, downloaded_data)
self.assertEqual(properties.content_settings.content_language,
content_settings.content_language)
@record
def test_upload_data_to_existing_file_with_content_settings_async(self):
loop = asyncio.get_event_loop()
loop.run_until_complete(
self.
_test_upload_data_to_existing_file_with_content_settings_async())
async def _test_read_file(self):
file_client = await self._create_file_and_return_client()
data = self.get_random_bytes(1024)
# upload data to file
await file_client.append_data(data, 0, len(data))
await file_client.flush_data(len(data))
# doanload the data and make sure it is the same as uploaded data
downloaded_data = await (await file_client.download_file()).readall()
self.assertEqual(data, downloaded_data)
@record
def test_read_file_async(self):
loop = asyncio.get_event_loop()
loop.run_until_complete(self._test_read_file())
async def _test_read_file_with_user_delegation_key(self):
# SAS URL is calculated from storage key, so this test runs live only
if TestMode.need_recording_file(self.test_mode):
return
# Create file
file_client = await self._create_file_and_return_client()
data = self.get_random_bytes(1024)
# Upload data to file
await file_client.append_data(data, 0, len(data))
await file_client.flush_data(len(data))
# Get user delegation key
token_credential = self.generate_async_oauth_token()
service_client = DataLakeServiceClient(self._get_oauth_account_url(),
credential=token_credential)
user_delegation_key = await service_client.get_user_delegation_key(
datetime.utcnow(),
datetime.utcnow() + timedelta(hours=1))
sas_token = generate_file_sas(
file_client.account_name,
file_client.file_system_name,
None,
file_client.path_name,
user_delegation_key,
permission=FileSasPermissions(read=True,
create=True,
write=True,
delete=True),
expiry=datetime.utcnow() + timedelta(hours=1),
)
# doanload the data and make sure it is the same as uploaded data
new_file_client = DataLakeFileClient(self._get_account_url(),
file_client.file_system_name,
file_client.path_name,
credential=sas_token)
downloaded_data = await (await
new_file_client.download_file()).readall()
self.assertEqual(data, downloaded_data)
@record
def test_read_file_with_user_delegation_key_async(self):
loop = asyncio.get_event_loop()
loop.run_until_complete(
self._test_read_file_with_user_delegation_key())
async def _test_read_file_into_file(self):
file_client = await self._create_file_and_return_client()
data = self.get_random_bytes(1024)
# upload data to file
await file_client.append_data(data, 0, len(data))
await file_client.flush_data(len(data))
# doanload the data into a file and make sure it is the same as uploaded data
with open(FILE_PATH, 'wb') as stream:
download = await file_client.download_file(max_concurrency=2)
await download.readinto(stream)
# Assert
with open(FILE_PATH, 'rb') as stream:
actual = stream.read()
self.assertEqual(data, actual)
@record
def test_read_file_into_file_async(self):
loop = asyncio.get_event_loop()
loop.run_until_complete(self._test_read_file_into_file())
async def _test_read_file_to_text(self):
file_client = await self._create_file_and_return_client()
data = self.get_random_text_data(1024)
# upload data to file
await file_client.append_data(data, 0, len(data))
await file_client.flush_data(len(data))
# doanload the text data and make sure it is the same as uploaded data
downloaded_data = await (await file_client.download_file(
max_concurrency=2, encoding="utf-8")).readall()
# Assert
self.assertEqual(data, downloaded_data)
@record
def test_read_file_to_text_async(self):
loop = asyncio.get_event_loop()
loop.run_until_complete(self._test_read_file_to_text())
async def _test_account_sas(self):
# SAS URL is calculated from storage key, so this test runs live only
if TestMode.need_recording_file(self.test_mode):
return
file_name = self._get_file_reference()
# create a file under root directory
await self._create_file_and_return_client(file=file_name)
# generate a token with file level read permission
token = generate_account_sas(
self.dsc.account_name,
self.dsc.credential.account_key,
ResourceTypes(file_system=True, object=True),
AccountSasPermissions(read=True),
datetime.utcnow() + timedelta(hours=1),
)
# read the created file which is under root directory
file_client = DataLakeFileClient(self.dsc.url,
self.file_system_name,
file_name,
credential=token)
properties = await file_client.get_file_properties()
# make sure we can read the file properties
self.assertIsNotNone(properties)
# try to write to the created file with the token
with self.assertRaises(HttpResponseError):
await file_client.append_data(b"abcd", 0, 4)
@record
def test_account_sas_async(self):
loop = asyncio.get_event_loop()
loop.run_until_complete(self._test_account_sas())
async def _test_file_sas_only_applies_to_file_level(self):
# SAS URL is calculated from storage key, so this test runs live only
if TestMode.need_recording_file(self.test_mode):
return
file_name = self._get_file_reference()
directory_name = self._get_directory_reference()
await self._create_file_and_return_client(directory=directory_name,
file=file_name)
# generate a token with file level read and write permissions
token = generate_file_sas(
self.dsc.account_name,
self.file_system_name,
directory_name,
file_name,
self.dsc.credential.account_key,
permission=FileSasPermissions(read=True, write=True),
expiry=datetime.utcnow() + timedelta(hours=1),
)
# read the created file which is under root directory
file_client = DataLakeFileClient(self.dsc.url,
self.file_system_name,
directory_name + '/' + file_name,
credential=token)
properties = await file_client.get_file_properties()
# make sure we can read the file properties
self.assertIsNotNone(properties)
# try to write to the created file with the token
response = await file_client.append_data(b"abcd",
0,
4,
validate_content=True)
self.assertIsNotNone(response)
# the token is for file level, so users are not supposed to have access to file system level operations
file_system_client = FileSystemClient(self.dsc.url,
self.file_system_name,
credential=token)
with self.assertRaises(ClientAuthenticationError):
await file_system_client.get_file_system_properties()
# the token is for file level, so users are not supposed to have access to directory level operations
directory_client = DataLakeDirectoryClient(self.dsc.url,
self.file_system_name,
directory_name,
credential=token)
with self.assertRaises(ClientAuthenticationError):
await directory_client.get_directory_properties()
@record
def test_file_sas_only_applies_to_file_level_async(self):
loop = asyncio.get_event_loop()
loop.run_until_complete(
self._test_file_sas_only_applies_to_file_level())
async def _test_delete_file(self):
# Arrange
file_client = await self._create_file_and_return_client()
await file_client.delete_file()
with self.assertRaises(ResourceNotFoundError):
await file_client.get_file_properties()
@record
def test_delete_file_async(self):
loop = asyncio.get_event_loop()
loop.run_until_complete(self._test_delete_file())
async def _test_delete_file_with_if_unmodified_since(self):
# Arrange
file_client = await self._create_file_and_return_client()
prop = await file_client.get_file_properties()
await file_client.delete_file(if_unmodified_since=prop['last_modified']
)
# Make sure the file was deleted
with self.assertRaises(ResourceNotFoundError):
await file_client.get_file_properties()
@record
def test_delete_file_with_if_unmodified_since_async(self):
loop = asyncio.get_event_loop()
loop.run_until_complete(
self._test_delete_file_with_if_unmodified_since())
async def _test_set_access_control(self):
file_client = await self._create_file_and_return_client()
response = await file_client.set_access_control(permissions='0777')
# Assert
self.assertIsNotNone(response)
@record
def test_set_access_control_async(self):
loop = asyncio.get_event_loop()
loop.run_until_complete(self._test_set_access_control())
async def _test_set_access_control_with_match_conditions(self):
file_client = await self._create_file_and_return_client()
with self.assertRaises(ResourceModifiedError):
await file_client.set_access_control(
permissions='0777', match_condition=MatchConditions.IfMissing)
@record
def test_set_access_control_with_match_conditions_async(self):
loop = asyncio.get_event_loop()
loop.run_until_complete(
self._test_set_access_control_with_match_conditions())
async def _test_get_access_control(self):
file_client = await self._create_file_and_return_client()
await file_client.set_access_control(permissions='0777')
# Act
response = await file_client.get_access_control()
# Assert
self.assertIsNotNone(response)
@record
def test_get_access_control_async(self):
loop = asyncio.get_event_loop()
loop.run_until_complete(self._test_get_access_control())
async def _test_get_access_control_with_if_modified_since(self):
file_client = await self._create_file_and_return_client()
await file_client.set_access_control(permissions='0777')
prop = await file_client.get_file_properties()
# Act
response = await file_client.get_access_control(
if_modified_since=prop['last_modified'] - timedelta(minutes=15))
# Assert
self.assertIsNotNone(response)
@record
def test_get_access_control_with_if_modified_since_async(self):
loop = asyncio.get_event_loop()
loop.run_until_complete(
self._test_get_access_control_with_if_modified_since())
async def _test_get_properties(self):
# Arrange
directory_client = await self._create_directory_and_return_client()
metadata = {'hello': 'world', 'number': '42'}
content_settings = ContentSettings(content_language='spanish',
content_disposition='inline')
file_client = await directory_client.create_file(
"newfile", metadata=metadata, content_settings=content_settings)
await file_client.append_data(b"abc", 0, 3)
await file_client.flush_data(3)
properties = await file_client.get_file_properties()
# Assert
self.assertTrue(properties)
self.assertEqual(properties.size, 3)
self.assertEqual(properties.metadata['hello'], metadata['hello'])
self.assertEqual(properties.content_settings.content_language,
content_settings.content_language)
@record
def test_get_properties_async(self):
loop = asyncio.get_event_loop()
loop.run_until_complete(self._test_get_properties())
async def _test_rename_file_with_non_used_name(self):
file_client = await self._create_file_and_return_client()
data_bytes = b"abc"
await file_client.append_data(data_bytes, 0, 3)
await file_client.flush_data(3)
new_client = await file_client.rename_file(
file_client.file_system_name + '/' + 'newname')
data = await (await new_client.download_file()).readall()
self.assertEqual(data, data_bytes)
self.assertEqual(new_client.path_name, "newname")
@record
def test_rename_file_with_non_used_name_async(self):
loop = asyncio.get_event_loop()
loop.run_until_complete(self._test_rename_file_with_non_used_name())
async def _test_rename_file_to_existing_file(self):
# create the existing file
existing_file_client = await self._create_file_and_return_client(
file="existingfile")
await existing_file_client.append_data(b"a", 0, 1)
await existing_file_client.flush_data(1)
old_url = existing_file_client.url
# prepare to rename the file to the existing file
file_client = await self._create_file_and_return_client()
data_bytes = b"abc"
await file_client.append_data(data_bytes, 0, 3)
await file_client.flush_data(3)
new_client = await file_client.rename_file(
file_client.file_system_name + '/' +
existing_file_client.path_name)
new_url = file_client.url
data = await (await new_client.download_file()).readall()
# the existing file was overridden
self.assertEqual(data, data_bytes)
@record
def test_rename_file_to_existing_file_async(self):
loop = asyncio.get_event_loop()
loop.run_until_complete(self._test_rename_file_to_existing_file())
async def _test_rename_file_will_not_change_existing_directory(self):
if TestMode.need_recording_file(self.test_mode):
return
# create none empty directory(with 2 files)
dir1 = await self._create_directory_and_return_client(directory="dir1")
f1 = await dir1.create_file("file1")
await f1.append_data(b"file1", 0, 5)
await f1.flush_data(5)
f2 = await dir1.create_file("file2")
await f2.append_data(b"file2", 0, 5)
await f2.flush_data(5)
# create another none empty directory(with 2 files)
dir2 = await self._create_directory_and_return_client(directory="dir2")
f3 = await dir2.create_file("file3")
await f3.append_data(b"file3", 0, 5)
await f3.flush_data(5)
f4 = await dir2.create_file("file4")
await f4.append_data(b"file4", 0, 5)
await f4.flush_data(5)
new_client = await f3.rename_file(f1.file_system_name + '/' +
f1.path_name)
self.assertEqual(await (await new_client.download_file()).readall(),
b"file3")
# make sure the data in file2 and file4 weren't touched
f2_data = await (await f2.download_file()).readall()
self.assertEqual(f2_data, b"file2")
f4_data = await (await f4.download_file()).readall()
self.assertEqual(f4_data, b"file4")
with self.assertRaises(HttpResponseError):
await (await f3.download_file()).readall()
@record
def test_rename_file_will_not_change_existing_directory_async(self):
loop = asyncio.get_event_loop()
loop.run_until_complete(
self._test_rename_file_will_not_change_existing_directory())
class FileTest(StorageTestCase):
async def _setUp(self, account_name, account_key):
url = self.account_url(account_name, 'dfs')
self.dsc = DataLakeServiceClient(url, credential=account_key)
self.config = self.dsc._config
self.file_system_name = self.get_resource_name('filesystem')
if not self.is_playback():
file_system = self.dsc.get_file_system_client(self.file_system_name)
try:
await file_system.create_file_system(timeout=5)
except ResourceExistsError:
pass
def tearDown(self):
if not self.is_playback():
try:
loop = asyncio.get_event_loop()
loop.run_until_complete(self.dsc.delete_file_system(self.file_system_name))
loop.run_until_complete(self.dsc.__aexit__())
except:
pass
return super(FileTest, self).tearDown()
# --Helpers-----------------------------------------------------------------
def _get_directory_reference(self, prefix=TEST_DIRECTORY_PREFIX):
directory_name = self.get_resource_name(prefix)
return directory_name
def _get_file_reference(self, prefix=TEST_FILE_PREFIX):
file_name = self.get_resource_name(prefix)
return file_name
async def _create_file_system(self):
return await self.dsc.create_file_system(self._get_file_system_reference())
async def _create_directory_and_return_client(self, directory=None):
directory_name = directory if directory else self._get_directory_reference()
directory_client = self.dsc.get_directory_client(self.file_system_name, directory_name)
await directory_client.create_directory()
return directory_client
async def _create_file_and_return_client(self, directory="", file=None):
if directory:
await self._create_directory_and_return_client(directory)
if not file:
file = self._get_file_reference()
file_client = self.dsc.get_file_client(self.file_system_name, directory + '/' + file)
await file_client.create_file()
return file_client
# --Helpers-----------------------------------------------------------------
@DataLakePreparer()
async def test_create_file_async(self, datalake_storage_account_name, datalake_storage_account_key):
await self._setUp(datalake_storage_account_name, datalake_storage_account_key)
# Arrange
directory_name = self._get_directory_reference()
# Create a directory to put the file under that
directory_client = self.dsc.get_directory_client(self.file_system_name, directory_name)
await directory_client.create_directory()
file_client = directory_client.get_file_client('filename')
response = await file_client.create_file()
# Assert
self.assertIsNotNone(response)
@DataLakePreparer()
async def test_file_exists(self, datalake_storage_account_name, datalake_storage_account_key):
await self._setUp(datalake_storage_account_name, datalake_storage_account_key)
# Arrange
directory_name = self._get_directory_reference()
directory_client = self.dsc.get_directory_client(self.file_system_name, directory_name)
await directory_client.create_directory()
file_client1 = directory_client.get_file_client('filename')
file_client2 = directory_client.get_file_client('nonexistentfile')
await file_client1.create_file()
self.assertTrue(await file_client1.exists())
self.assertFalse(await file_client2.exists())
@DataLakePreparer()
async def test_create_file_using_oauth_token_credential_async(self, datalake_storage_account_name, datalake_storage_account_key):
await self._setUp(datalake_storage_account_name, datalake_storage_account_key)
# Arrange
file_name = self._get_file_reference()
token_credential = self.generate_oauth_token()
# Create a directory to put the file under that
file_client = DataLakeFileClient(self.dsc.url, self.file_system_name, file_name,
credential=token_credential)
response = await file_client.create_file()
# Assert
self.assertIsNotNone(response)
@DataLakePreparer()
async def test_create_file_with_existing_name_async(self, datalake_storage_account_name, datalake_storage_account_key):
await self._setUp(datalake_storage_account_name, datalake_storage_account_key)
# Arrange
file_client = await self._create_file_and_return_client()
with self.assertRaises(ResourceExistsError):
# if the file exists then throw error
# if_none_match='*' is to make sure no existing file
await file_client.create_file(match_condition=MatchConditions.IfMissing)
@DataLakePreparer()
async def test_create_file_with_lease_id_async(self, datalake_storage_account_name, datalake_storage_account_key):
await self._setUp(datalake_storage_account_name, datalake_storage_account_key)
# Arrange
directory_name = self._get_directory_reference()
directory_client = self.dsc.get_directory_client(self.file_system_name, directory_name)
await directory_client.create_directory()
file_client = directory_client.get_file_client('filename')
# Act
await file_client.create_file()
lease = await file_client.acquire_lease()
create_resp = await file_client.create_file(lease=lease)
# Assert
file_properties = await file_client.get_file_properties()
self.assertIsNotNone(file_properties)
self.assertEqual(file_properties.etag, create_resp.get('etag'))
self.assertEqual(file_properties.last_modified, create_resp.get('last_modified'))
@DataLakePreparer()
async def test_create_file_under_root_directory_async(self, datalake_storage_account_name, datalake_storage_account_key):
await self._setUp(datalake_storage_account_name, datalake_storage_account_key)
# Arrange
# get a file client to interact with the file under root directory
file_client = self.dsc.get_file_client(self.file_system_name, "filename")
response = await file_client.create_file()
# Assert
self.assertIsNotNone(response)
@DataLakePreparer()
async def test_append_data_async(self, datalake_storage_account_name, datalake_storage_account_key):
await self._setUp(datalake_storage_account_name, datalake_storage_account_key)
directory_name = self._get_directory_reference()
# Create a directory to put the file under that
directory_client = self.dsc.get_directory_client(self.file_system_name, directory_name)
await directory_client.create_directory()
file_client = directory_client.get_file_client('filename')
await file_client.create_file()
# Act
response = await file_client.append_data(b'abc', 0, 3)
self.assertIsNotNone(response)
@DataLakePreparer()
async def test_append_empty_data_async(self, datalake_storage_account_name, datalake_storage_account_key):
await self._setUp(datalake_storage_account_name, datalake_storage_account_key)
file_client = await self._create_file_and_return_client()
# Act
await file_client.flush_data(0)
file_props = await file_client.get_file_properties()
self.assertIsNotNone(file_props['size'], 0)
@DataLakePreparer()
async def test_flush_data_async(self, datalake_storage_account_name, datalake_storage_account_key):
await self._setUp(datalake_storage_account_name, datalake_storage_account_key)
directory_name = self._get_directory_reference()
# Create a directory to put the file under that
directory_client = self.dsc.get_directory_client(self.file_system_name, directory_name)
await directory_client.create_directory()
file_client = directory_client.get_file_client('filename')
await file_client.create_file()
# Act
await file_client.append_data(b'abc', 0, 3)
response = await file_client.flush_data(3)
# Assert
prop = await file_client.get_file_properties()
self.assertIsNotNone(response)
self.assertEqual(prop['size'], 3)
@DataLakePreparer()
async def test_flush_data_with_match_condition_async(self, datalake_storage_account_name, datalake_storage_account_key):
await self._setUp(datalake_storage_account_name, datalake_storage_account_key)
directory_name = self._get_directory_reference()
# Create a directory to put the file under that
directory_client = self.dsc.get_directory_client(self.file_system_name, directory_name)
await directory_client.create_directory()
file_client = directory_client.get_file_client('filename')
resp = await file_client.create_file()
# Act
await file_client.append_data(b'abc', 0, 3)
# flush is successful because it isn't touched
response = await file_client.flush_data(3, etag=resp['etag'], match_condition=MatchConditions.IfNotModified)
await file_client.append_data(b'abc', 3, 3)
with self.assertRaises(ResourceModifiedError):
# flush is unsuccessful because extra data were appended.
await file_client.flush_data(6, etag=resp['etag'], match_condition=MatchConditions.IfNotModified)
@pytest.mark.live_test_only
@DataLakePreparer()
async def test_upload_data_in_substreams(self, datalake_storage_account_name, datalake_storage_account_key):
await self._setUp(datalake_storage_account_name, datalake_storage_account_key)
# parallel upload cannot be recorded
directory_name = self._get_directory_reference()
# Create a directory to put the file under that
directory_client = self.dsc.get_directory_client(self.file_system_name, directory_name)
await directory_client.create_directory()
file_client = directory_client.get_file_client('filename')
# Get 16MB data
raw_data = self.get_random_bytes(16 * 1024 * 1024)
# Ensure chunk size is greater than threshold (8MB > 4MB) - for optimized upload
await file_client.upload_data(raw_data, chunk_size=8 * 1024 * 1024, overwrite=True, max_concurrency=3)
data = await file_client.download_file()
downloaded_data = await data.readall()
self.assertEqual(raw_data, downloaded_data)
# Run on single thread
await file_client.upload_data(raw_data, chunk_size=8 * 1024 * 1024, overwrite=True)
data = await file_client.download_file()
downloaded_data = await data.readall()
self.assertEqual(raw_data, downloaded_data)
@pytest.mark.live_test_only
@DataLakePreparer()
async def test_upload_data_async(self, datalake_storage_account_name, datalake_storage_account_key):
await self._setUp(datalake_storage_account_name, datalake_storage_account_key)
# parallel upload cannot be recorded
directory_name = self._get_directory_reference()
# Create a directory to put the file under that
directory_client = self.dsc.get_directory_client(self.file_system_name, directory_name)
await directory_client.create_directory()
file_client = directory_client.get_file_client('filename')
data = self.get_random_bytes(400*1024)
await file_client.upload_data(data, overwrite=True, max_concurrency=5)
downloaded_data = await (await file_client.download_file()).readall()
self.assertEqual(data, downloaded_data)
@pytest.mark.live_test_only
@DataLakePreparer()
async def test_upload_data_to_existing_file_async(self, datalake_storage_account_name, datalake_storage_account_key):
await self._setUp(datalake_storage_account_name, datalake_storage_account_key)
directory_name = self._get_directory_reference()
# Create a directory to put the file under that
directory_client = self.dsc.get_directory_client(self.file_system_name, directory_name)
await directory_client.create_directory()
# create an existing file
file_client = directory_client.get_file_client('filename')
await file_client.create_file()
await file_client.append_data(b"abc", 0)
await file_client.flush_data(3)
# to override the existing file
data = self.get_random_bytes(100)
with self.assertRaises(HttpResponseError):
await file_client.upload_data(data, max_concurrency=5)
await file_client.upload_data(data, overwrite=True, max_concurrency=5)
downloaded_data = await (await file_client.download_file()).readall()
self.assertEqual(data, downloaded_data)
@pytest.mark.live_test_only
@DataLakePreparer()
async def test_upload_data_to_existing_file_with_content_settings_async(self, datalake_storage_account_name, datalake_storage_account_key):
await self._setUp(datalake_storage_account_name, datalake_storage_account_key)
# etag in async recording file cannot be parsed properly
directory_name = self._get_directory_reference()
# Create a directory to put the file under that
directory_client = self.dsc.get_directory_client(self.file_system_name, directory_name)
await directory_client.create_directory()
# create an existing file
file_client = directory_client.get_file_client('filename')
resp = await file_client.create_file()
etag = resp['etag']
# to override the existing file
data = self.get_random_bytes(100)
content_settings = ContentSettings(
content_language='spanish',
content_disposition='inline')
await file_client.upload_data(data, max_concurrency=5,
content_settings=content_settings, etag=etag,
match_condition=MatchConditions.IfNotModified)
downloaded_data = await (await file_client.download_file()).readall()
properties = await file_client.get_file_properties()
self.assertEqual(data, downloaded_data)
self.assertEqual(properties.content_settings.content_language, content_settings.content_language)
@pytest.mark.live_test_only
@DataLakePreparer()
async def test_upload_data_to_existing_file_with_permissions_and_umask_async(self, datalake_storage_account_name, datalake_storage_account_key):
await self._setUp(datalake_storage_account_name, datalake_storage_account_key)
# etag in async recording file cannot be parsed properly
directory_name = self._get_directory_reference()
# Create a directory to put the file under that
directory_client = self.dsc.get_directory_client(self.file_system_name, directory_name)
await directory_client.create_directory()
# create an existing file
file_client = directory_client.get_file_client('filename')
resp = await file_client.create_file()
etag = resp['etag']
# to override the existing file
data = self.get_random_bytes(100)
await file_client.upload_data(data,
overwrite=True, max_concurrency=5,
permissions='0777', umask="0000",
etag=etag,
match_condition=MatchConditions.IfNotModified)
downloaded_data = await (await file_client.download_file()).readall()
prop = await file_client.get_access_control()
self.assertEqual(data, downloaded_data)
self.assertEqual(prop['permissions'], 'rwxrwxrwx')
@DataLakePreparer()
async def test_read_file_async(self, datalake_storage_account_name, datalake_storage_account_key):
await self._setUp(datalake_storage_account_name, datalake_storage_account_key)
file_client = await self._create_file_and_return_client()
data = self.get_random_bytes(1024)
# upload data to file
await file_client.append_data(data, 0, len(data))
await file_client.flush_data(len(data))
# doanload the data and make sure it is the same as uploaded data
downloaded_data = await (await file_client.download_file()).readall()
self.assertEqual(data, downloaded_data)
@pytest.mark.live_test_only
@DataLakePreparer()
async def test_read_file_with_user_delegation_key_async(self, datalake_storage_account_name, datalake_storage_account_key):
await self._setUp(datalake_storage_account_name, datalake_storage_account_key)
# SAS URL is calculated from storage key, so this test runs live only
# Create file
file_client = await self._create_file_and_return_client()
data = self.get_random_bytes(1024)
# Upload data to file
await file_client.append_data(data, 0, len(data))
await file_client.flush_data(len(data))
# Get user delegation key
token_credential = self.generate_oauth_token()
service_client = DataLakeServiceClient(self.account_url(datalake_storage_account_name, 'dfs'), credential=token_credential)
user_delegation_key = await service_client.get_user_delegation_key(datetime.utcnow(),
datetime.utcnow() + timedelta(hours=1))
sas_token = generate_file_sas(file_client.account_name,
file_client.file_system_name,
None,
file_client.path_name,
user_delegation_key,
permission=FileSasPermissions(read=True, create=True, write=True, delete=True),
expiry=datetime.utcnow() + timedelta(hours=1),
)
# doanload the data and make sure it is the same as uploaded data
new_file_client = DataLakeFileClient(self.account_url(datalake_storage_account_name, 'dfs'),
file_client.file_system_name,
file_client.path_name,
credential=sas_token)
downloaded_data = await (await new_file_client.download_file()).readall()
self.assertEqual(data, downloaded_data)
@DataLakePreparer()
async def test_read_file_into_file_async(self, datalake_storage_account_name, datalake_storage_account_key):
await self._setUp(datalake_storage_account_name, datalake_storage_account_key)
file_client = await self._create_file_and_return_client()
data = self.get_random_bytes(1024)
# upload data to file
await file_client.append_data(data, 0, len(data))
await file_client.flush_data(len(data))
# doanload the data into a file and make sure it is the same as uploaded data
with open(FILE_PATH, 'wb') as stream:
download = await file_client.download_file(max_concurrency=2)
await download.readinto(stream)
# Assert
with open(FILE_PATH, 'rb') as stream:
actual = stream.read()
self.assertEqual(data, actual)
@DataLakePreparer()
async def test_read_file_to_text_async(self, datalake_storage_account_name, datalake_storage_account_key):
await self._setUp(datalake_storage_account_name, datalake_storage_account_key)
file_client = await self._create_file_and_return_client()
data = self.get_random_text_data(1024)
# upload data to file
await file_client.append_data(data, 0, len(data))
await file_client.flush_data(len(data))
# doanload the text data and make sure it is the same as uploaded data
downloaded_data = await (await file_client.download_file(max_concurrency=2, encoding="utf-8")).readall()
# Assert
self.assertEqual(data, downloaded_data)
@pytest.mark.live_test_only
@DataLakePreparer()
async def test_account_sas_async(self, datalake_storage_account_name, datalake_storage_account_key):
await self._setUp(datalake_storage_account_name, datalake_storage_account_key)
# SAS URL is calculated from storage key, so this test runs live only
file_name = self._get_file_reference()
# create a file under root directory
await self._create_file_and_return_client(file=file_name)
# generate a token with file level read permission
token = generate_account_sas(
self.dsc.account_name,
self.dsc.credential.account_key,
ResourceTypes(file_system=True, object=True),
AccountSasPermissions(read=True),
datetime.utcnow() + timedelta(hours=1),
)
for credential in [token, AzureSasCredential(token)]:
# read the created file which is under root directory
file_client = DataLakeFileClient(self.dsc.url, self.file_system_name, file_name, credential=credential)
properties = await file_client.get_file_properties()
# make sure we can read the file properties
self.assertIsNotNone(properties)
# try to write to the created file with the token
with self.assertRaises(HttpResponseError):
await file_client.append_data(b"abcd", 0, 4)
@DataLakePreparer()
async def test_account_sas_raises_if_sas_already_in_uri(self, datalake_storage_account_name, datalake_storage_account_key):
await self._setUp(datalake_storage_account_name, datalake_storage_account_key)
with self.assertRaises(ValueError):
DataLakeFileClient(self.dsc.url + "?sig=foo", self.file_system_name, "foo", credential=AzureSasCredential("?foo=bar"))
@pytest.mark.live_test_only
@DataLakePreparer()
async def test_file_sas_only_applies_to_file_level_async(self, datalake_storage_account_name, datalake_storage_account_key):
await self._setUp(datalake_storage_account_name, datalake_storage_account_key)
# SAS URL is calculated from storage key, so this test runs live only
file_name = self._get_file_reference()
directory_name = self._get_directory_reference()
await self._create_file_and_return_client(directory=directory_name, file=file_name)
# generate a token with file level read and write permissions
token = generate_file_sas(
self.dsc.account_name,
self.file_system_name,
directory_name,
file_name,
self.dsc.credential.account_key,
permission=FileSasPermissions(read=True, write=True),
expiry=datetime.utcnow() + timedelta(hours=1),
)
# read the created file which is under root directory
file_client = DataLakeFileClient(self.dsc.url, self.file_system_name, directory_name + '/' + file_name,
credential=token)
properties = await file_client.get_file_properties()
# make sure we can read the file properties
self.assertIsNotNone(properties)
# try to write to the created file with the token
response = await file_client.append_data(b"abcd", 0, 4, validate_content=True)
self.assertIsNotNone(response)
# the token is for file level, so users are not supposed to have access to file system level operations
file_system_client = FileSystemClient(self.dsc.url, self.file_system_name, credential=token)
with self.assertRaises(ClientAuthenticationError):
await file_system_client.get_file_system_properties()
# the token is for file level, so users are not supposed to have access to directory level operations
directory_client = DataLakeDirectoryClient(self.dsc.url, self.file_system_name, directory_name,
credential=token)
with self.assertRaises(ClientAuthenticationError):
await directory_client.get_directory_properties()
@DataLakePreparer()
async def test_delete_file_async(self, datalake_storage_account_name, datalake_storage_account_key):
await self._setUp(datalake_storage_account_name, datalake_storage_account_key)
# Arrange
file_client = await self._create_file_and_return_client()
await file_client.delete_file()
with self.assertRaises(ResourceNotFoundError):
await file_client.get_file_properties()
@DataLakePreparer()
async def test_delete_file_with_if_unmodified_since_async(self, datalake_storage_account_name, datalake_storage_account_key):
await self._setUp(datalake_storage_account_name, datalake_storage_account_key)
# Arrange
file_client = await self._create_file_and_return_client()
prop = await file_client.get_file_properties()
await file_client.delete_file(if_unmodified_since=prop['last_modified'])
# Make sure the file was deleted
with self.assertRaises(ResourceNotFoundError):
await file_client.get_file_properties()
@DataLakePreparer()
async def test_set_access_control_async(self, datalake_storage_account_name, datalake_storage_account_key):
await self._setUp(datalake_storage_account_name, datalake_storage_account_key)
file_client = await self._create_file_and_return_client()
response = await file_client.set_access_control(permissions='0777')
# Assert
self.assertIsNotNone(response)
@DataLakePreparer()
async def test_set_access_control_with_match_conditions_async(self, datalake_storage_account_name, datalake_storage_account_key):
await self._setUp(datalake_storage_account_name, datalake_storage_account_key)
file_client = await self._create_file_and_return_client()
with self.assertRaises(ResourceModifiedError):
await file_client.set_access_control(permissions='0777', match_condition=MatchConditions.IfMissing)
@DataLakePreparer()
async def test_get_access_control_async(self, datalake_storage_account_name, datalake_storage_account_key):
await self._setUp(datalake_storage_account_name, datalake_storage_account_key)
file_client = await self._create_file_and_return_client()
await file_client.set_access_control(permissions='0777')
# Act
response = await file_client.get_access_control()
# Assert
self.assertIsNotNone(response)
@DataLakePreparer()
async def test_get_access_control_with_if_modified_since_async(self, datalake_storage_account_name, datalake_storage_account_key):
await self._setUp(datalake_storage_account_name, datalake_storage_account_key)
file_client = await self._create_file_and_return_client()
await file_client.set_access_control(permissions='0777')
prop = await file_client.get_file_properties()
# Act
response = await file_client.get_access_control(if_modified_since=prop['last_modified'] - timedelta(minutes=15))
# Assert
self.assertIsNotNone(response)
@DataLakePreparer()
async def test_get_properties_async(self, datalake_storage_account_name, datalake_storage_account_key):
await self._setUp(datalake_storage_account_name, datalake_storage_account_key)
# Arrange
directory_client = await self._create_directory_and_return_client()
metadata = {'hello': 'world', 'number': '42'}
content_settings = ContentSettings(
content_language='spanish',
content_disposition='inline')
file_client = await directory_client.create_file("newfile", metadata=metadata,
content_settings=content_settings)
await file_client.append_data(b"abc", 0, 3)
await file_client.flush_data(3)
properties = await file_client.get_file_properties()
# Assert
self.assertTrue(properties)
self.assertEqual(properties.size, 3)
self.assertEqual(properties.metadata['hello'], metadata['hello'])
self.assertEqual(properties.content_settings.content_language, content_settings.content_language)
@DataLakePreparer()
async def test_set_access_control_recursive_async(self, datalake_storage_account_name, datalake_storage_account_key):
await self._setUp(datalake_storage_account_name, datalake_storage_account_key)
acl = 'user::rwx,group::r-x,other::rwx'
file_client = await self._create_file_and_return_client()
summary = await file_client.set_access_control_recursive(acl=acl)
# Assert
self.assertEqual(summary.counters.directories_successful, 0)
self.assertEqual(summary.counters.files_successful, 1)
self.assertEqual(summary.counters.failure_count, 0)
access_control = await file_client.get_access_control()
self.assertIsNotNone(access_control)
self.assertEqual(acl, access_control['acl'])
@DataLakePreparer()
async def test_update_access_control_recursive_async(self, datalake_storage_account_name, datalake_storage_account_key):
await self._setUp(datalake_storage_account_name, datalake_storage_account_key)
acl = 'user::rwx,group::r-x,other::rwx'
file_client = await self._create_file_and_return_client()
summary = await file_client.update_access_control_recursive(acl=acl)
# Assert
self.assertEqual(summary.counters.directories_successful, 0)
self.assertEqual(summary.counters.files_successful, 1)
self.assertEqual(summary.counters.failure_count, 0)
access_control = await file_client.get_access_control()
self.assertIsNotNone(access_control)
self.assertEqual(acl, access_control['acl'])
@DataLakePreparer()
async def test_remove_access_control_recursive_async(self, datalake_storage_account_name, datalake_storage_account_key):
await self._setUp(datalake_storage_account_name, datalake_storage_account_key)
acl = "mask," + "default:user,default:group," + \
"user:ec3595d6-2c17-4696-8caa-7e139758d24a,group:ec3595d6-2c17-4696-8caa-7e139758d24a," + \
"default:user:ec3595d6-2c17-4696-8caa-7e139758d24a,default:group:ec3595d6-2c17-4696-8caa-7e139758d24a"
file_client = await self._create_file_and_return_client()
summary = await file_client.remove_access_control_recursive(acl=acl)
# Assert
self.assertEqual(summary.counters.directories_successful, 0)
self.assertEqual(summary.counters.files_successful, 1)
self.assertEqual(summary.counters.failure_count, 0)
@DataLakePreparer()
async def test_set_expiry_async(self, datalake_storage_account_name, datalake_storage_account_key):
await self._setUp(datalake_storage_account_name, datalake_storage_account_key)
# Arrange
directory_client = await self._create_directory_and_return_client()
metadata = {'hello': 'world', 'number': '42'}
content_settings = ContentSettings(
content_language='spanish',
content_disposition='inline')
expires_on = datetime.utcnow() + timedelta(hours=1)
file_client = await directory_client.create_file("newfile", metadata=metadata, content_settings=content_settings)
await file_client.set_file_expiry("Absolute", expires_on=expires_on)
properties = await file_client.get_file_properties()
# Assert
self.assertTrue(properties)
self.assertIsNotNone(properties.expiry_time)
@DataLakePreparer()
async def test_rename_file_with_non_used_name_async(self, datalake_storage_account_name, datalake_storage_account_key):
await self._setUp(datalake_storage_account_name, datalake_storage_account_key)
file_client = await self._create_file_and_return_client()
data_bytes = b"abc"
await file_client.append_data(data_bytes, 0, 3)
await file_client.flush_data(3)
new_client = await file_client.rename_file(file_client.file_system_name + '/' + 'newname')
data = await (await new_client.download_file()).readall()
self.assertEqual(data, data_bytes)
self.assertEqual(new_client.path_name, "newname")
@DataLakePreparer()
async def test_rename_file_to_existing_file_async(self, datalake_storage_account_name, datalake_storage_account_key):
await self._setUp(datalake_storage_account_name, datalake_storage_account_key)
# create the existing file
existing_file_client = await self._create_file_and_return_client(file="existingfile")
await existing_file_client.append_data(b"a", 0, 1)
await existing_file_client.flush_data(1)
old_url = existing_file_client.url
# prepare to rename the file to the existing file
file_client = await self._create_file_and_return_client()
data_bytes = b"abc"
await file_client.append_data(data_bytes, 0, 3)
await file_client.flush_data(3)
new_client = await file_client.rename_file(file_client.file_system_name + '/' + existing_file_client.path_name)
new_url = file_client.url
data = await (await new_client.download_file()).readall()
# the existing file was overridden
self.assertEqual(data, data_bytes)
@pytest.mark.live_test_only
@DataLakePreparer()
async def test_rename_file_with_file_sas_async(self, datalake_storage_account_name, datalake_storage_account_key):
await self._setUp(datalake_storage_account_name, datalake_storage_account_key)
# SAS URL is calculated from storage key, so this test runs live only
token = generate_file_sas(self.dsc.account_name,
self.file_system_name,
None,
"oldfile",
datalake_storage_account_key,
permission=FileSasPermissions(read=True, create=True, write=True, delete=True, move=True),
expiry=datetime.utcnow() + timedelta(hours=1),
)
new_token = generate_file_sas(self.dsc.account_name,
self.file_system_name,
None,
"newname",
datalake_storage_account_key,
permission=FileSasPermissions(read=True, create=True, write=True, delete=True),
expiry=datetime.utcnow() + timedelta(hours=1),
)
# read the created file which is under root directory
file_client = DataLakeFileClient(self.dsc.url, self.file_system_name, "oldfile", credential=token)
await file_client.create_file()
data_bytes = b"abc"
await file_client.append_data(data_bytes, 0, 3)
await file_client.flush_data(3)
new_client = await file_client.rename_file(file_client.file_system_name+'/'+'newname'+'?'+new_token)
data = await (await new_client.download_file()).readall()
self.assertEqual(data, data_bytes)
self.assertEqual(new_client.path_name, "newname")
@pytest.mark.live_test_only
@DataLakePreparer()
async def test_rename_file_will_not_change_existing_directory_async(self, datalake_storage_account_name, datalake_storage_account_key):
await self._setUp(datalake_storage_account_name, datalake_storage_account_key)
# create none empty directory(with 2 files)
dir1 = await self._create_directory_and_return_client(directory="dir1")
f1 = await dir1.create_file("file1")
await f1.append_data(b"file1", 0, 5)
await f1.flush_data(5)
f2 = await dir1.create_file("file2")
await f2.append_data(b"file2", 0, 5)
await f2.flush_data(5)
# create another none empty directory(with 2 files)
dir2 = await self._create_directory_and_return_client(directory="dir2")
f3 = await dir2.create_file("file3")
await f3.append_data(b"file3", 0, 5)
await f3.flush_data(5)
f4 = await dir2.create_file("file4")
await f4.append_data(b"file4", 0, 5)
await f4.flush_data(5)
new_client = await f3.rename_file(f1.file_system_name + '/' + f1.path_name)
self.assertEqual(await (await new_client.download_file()).readall(), b"file3")
# make sure the data in file2 and file4 weren't touched
f2_data = await (await f2.download_file()).readall()
self.assertEqual(f2_data, b"file2")
f4_data = await (await f4.download_file()).readall()
self.assertEqual(f4_data, b"file4")
with self.assertRaises(HttpResponseError):
await (await f3.download_file()).readall()
