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389 lines (340 loc) · 13.7 KB
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# -*- coding: utf-8 -*-
#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
"""Unit tests for GCS File System."""
# pytype: skip-file
import logging
import unittest
import mock
from apache_beam.io.filesystem import BeamIOError
from apache_beam.io.filesystem import FileMetadata
from apache_beam.options.pipeline_options import PipelineOptions
# Protect against environments where apitools library is not available.
# pylint: disable=wrong-import-order, wrong-import-position
try:
from apache_beam.io.gcp import gcsfilesystem
except ImportError:
gcsfilesystem = None # type: ignore
# pylint: enable=wrong-import-order, wrong-import-position
@unittest.skipIf(gcsfilesystem is None, 'GCP dependencies are not installed')
class GCSFileSystemTest(unittest.TestCase):
def setUp(self):
pipeline_options = PipelineOptions()
self.fs = gcsfilesystem.GCSFileSystem(pipeline_options=pipeline_options)
def test_scheme(self):
self.assertEqual(self.fs.scheme(), 'gs')
self.assertEqual(gcsfilesystem.GCSFileSystem.scheme(), 'gs')
def test_join(self):
self.assertEqual(
'gs://bucket/path/to/file',
self.fs.join('gs://bucket/path', 'to', 'file'))
self.assertEqual(
'gs://bucket/path/to/file', self.fs.join('gs://bucket/path', 'to/file'))
self.assertEqual(
'gs://bucket/path/to/file',
self.fs.join('gs://bucket/path', '/to/file'))
self.assertEqual(
'gs://bucket/path/to/file',
self.fs.join('gs://bucket/path/', 'to', 'file'))
self.assertEqual(
'gs://bucket/path/to/file',
self.fs.join('gs://bucket/path/', 'to/file'))
self.assertEqual(
'gs://bucket/path/to/file',
self.fs.join('gs://bucket/path/', '/to/file'))
with self.assertRaises(ValueError):
self.fs.join('/bucket/path/', '/to/file')
def test_split(self):
self.assertEqual(('gs://foo/bar', 'baz'), self.fs.split('gs://foo/bar/baz'))
self.assertEqual(('gs://foo', ''), self.fs.split('gs://foo/'))
self.assertEqual(('gs://foo', ''), self.fs.split('gs://foo'))
with self.assertRaises(ValueError):
self.fs.split('/no/gcs/prefix')
@mock.patch('apache_beam.io.gcp.gcsfilesystem.gcsio')
def test_match_multiples(self, mock_gcsio):
# Prepare mocks.
gcsio_mock = mock.MagicMock()
gcsfilesystem.gcsio.GcsIO = lambda pipeline_options=None: gcsio_mock
gcsio_mock.list_files.return_value = iter([
('gs://bucket/file1', (1, 99999.0)),
('gs://bucket/file2', (2, 88888.0))
])
expected_results = set([
FileMetadata('gs://bucket/file1', 1, 99999.0),
FileMetadata('gs://bucket/file2', 2, 88888.0)
])
match_result = self.fs.match(['gs://bucket/'])[0]
self.assertEqual(set(match_result.metadata_list), expected_results)
gcsio_mock.list_files.assert_called_once_with(
'gs://bucket/', with_metadata=True)
@mock.patch('apache_beam.io.gcp.gcsfilesystem.gcsio')
def test_match_multiples_limit(self, mock_gcsio):
# Prepare mocks.
gcsio_mock = mock.MagicMock()
limit = 1
gcsfilesystem.gcsio.GcsIO = lambda pipeline_options=None: gcsio_mock
gcsio_mock.list_files.return_value = iter([
('gs://bucket/file1', (1, 99999.0))
])
expected_results = set([FileMetadata('gs://bucket/file1', 1, 99999.0)])
match_result = self.fs.match(['gs://bucket/'], [limit])[0]
self.assertEqual(set(match_result.metadata_list), expected_results)
self.assertEqual(len(match_result.metadata_list), limit)
gcsio_mock.list_files.assert_called_once_with(
'gs://bucket/', with_metadata=True)
@mock.patch('apache_beam.io.gcp.gcsfilesystem.gcsio')
def test_match_multiples_error(self, mock_gcsio):
# Prepare mocks.
gcsio_mock = mock.MagicMock()
gcsfilesystem.gcsio.GcsIO = lambda pipeline_options=None: gcsio_mock
exception = IOError('Failed')
gcsio_mock.list_files.side_effect = exception
with self.assertRaisesRegex(BeamIOError,
r'^Match operation failed') as error:
self.fs.match(['gs://bucket/'])
self.assertRegex(
str(error.exception.exception_details), r'gs://bucket/.*%s' % exception)
gcsio_mock.list_files.assert_called_once_with(
'gs://bucket/', with_metadata=True)
@mock.patch('apache_beam.io.gcp.gcsfilesystem.gcsio')
def test_match_multiple_patterns(self, mock_gcsio):
# Prepare mocks.
gcsio_mock = mock.MagicMock()
gcsfilesystem.gcsio.GcsIO = lambda pipeline_options=None: gcsio_mock
gcsio_mock.list_files.side_effect = [
iter([('gs://bucket/file1', (1, 99999.0))]),
iter([('gs://bucket/file2', (2, 88888.0))]),
]
expected_results = [[FileMetadata('gs://bucket/file1', 1, 99999.0)],
[FileMetadata('gs://bucket/file2', 2, 88888.0)]]
result = self.fs.match(['gs://bucket/file1*', 'gs://bucket/file2*'])
self.assertEqual([mr.metadata_list for mr in result], expected_results)
@mock.patch('apache_beam.io.gcp.gcsfilesystem.gcsio')
def test_create(self, mock_gcsio):
# Prepare mocks.
gcsio_mock = mock.MagicMock()
gcsfilesystem.gcsio.GcsIO = lambda pipeline_options=None: gcsio_mock
# Issue file copy
_ = self.fs.create('gs://bucket/from1', 'application/octet-stream')
gcsio_mock.open.assert_called_once_with(
'gs://bucket/from1', 'wb', mime_type='application/octet-stream')
@mock.patch('apache_beam.io.gcp.gcsfilesystem.gcsio')
def test_open(self, mock_gcsio):
# Prepare mocks.
gcsio_mock = mock.MagicMock()
gcsfilesystem.gcsio.GcsIO = lambda pipeline_options=None: gcsio_mock
# Issue file copy
_ = self.fs.open('gs://bucket/from1', 'application/octet-stream')
gcsio_mock.open.assert_called_once_with(
'gs://bucket/from1', 'rb', mime_type='application/octet-stream')
@mock.patch('apache_beam.io.gcp.gcsfilesystem.gcsio')
def test_copy_file(self, mock_gcsio):
# Prepare mocks.
gcsio_mock = mock.MagicMock()
gcsfilesystem.gcsio.GcsIO = lambda pipeline_options=None: gcsio_mock
sources = ['gs://bucket/from1']
destinations = ['gs://bucket/to1']
# Issue file copy
self.fs.copy(sources, destinations)
gcsio_mock.copy.assert_called_once_with(
'gs://bucket/from1', 'gs://bucket/to1')
@mock.patch('apache_beam.io.gcp.gcsfilesystem.gcsio')
def test_copy_file_error(self, mock_gcsio):
# Prepare mocks.
gcsio_mock = mock.MagicMock()
gcsfilesystem.gcsio.GcsIO = lambda pipeline_options=None: gcsio_mock
sources = ['gs://bucket/from1']
destinations = ['gs://bucket/to1']
exception = IOError('Failed')
gcsio_mock.copy.side_effect = exception
# Issue batch rename.
expected_results = {(s, d): exception
for s, d in zip(sources, destinations)}
# Issue batch copy.
with self.assertRaisesRegex(BeamIOError,
r'^Copy operation failed') as error:
self.fs.copy(sources, destinations)
self.assertEqual(error.exception.exception_details, expected_results)
gcsio_mock.copy.assert_called_once_with(
'gs://bucket/from1', 'gs://bucket/to1')
@mock.patch('apache_beam.io.gcp.gcsfilesystem.gcsio')
def test_copy_tree(self, mock_gcsio):
# Prepare mocks.
gcsio_mock = mock.MagicMock()
gcsfilesystem.gcsio.GcsIO = lambda pipeline_options=None: gcsio_mock
sources = ['gs://bucket1/']
destinations = ['gs://bucket2/']
# Issue directory copy
self.fs.copy(sources, destinations)
gcsio_mock.copytree.assert_called_once_with(
'gs://bucket1/', 'gs://bucket2/')
@mock.patch('apache_beam.io.gcp.gcsfilesystem.gcsio')
def test_rename(self, mock_gcsio):
# Prepare mocks.
gcsio_mock = mock.MagicMock()
gcsfilesystem.gcsio.GcsIO = lambda pipeline_options=None: gcsio_mock
sources = [
'gs://bucket/from1',
'gs://bucket/from2',
'gs://bucket/from3',
]
destinations = [
'gs://bucket/to1',
'gs://bucket/to2',
'gs://bucket/to3',
]
gcsio_mock.copy_batch.side_effect = [[
('gs://bucket/from1', 'gs://bucket/to1', None),
('gs://bucket/from2', 'gs://bucket/to2', None),
('gs://bucket/from3', 'gs://bucket/to3', None),
]]
gcsio_mock.delete_batch.side_effect = [[
('gs://bucket/from1', None),
('gs://bucket/from2', None),
('gs://bucket/from3', None),
]]
# Issue batch rename.
self.fs.rename(sources, destinations)
gcsio_mock.copy_batch.assert_called_once_with([
('gs://bucket/from1', 'gs://bucket/to1'),
('gs://bucket/from2', 'gs://bucket/to2'),
('gs://bucket/from3', 'gs://bucket/to3'),
])
gcsio_mock.delete_batch.assert_called_once_with([
'gs://bucket/from1',
'gs://bucket/from2',
'gs://bucket/from3',
])
@mock.patch('apache_beam.io.gcp.gcsfilesystem.gcsio')
def test_rename_delete_error(self, mock_gcsio):
# Prepare mocks.
gcsio_mock = mock.MagicMock()
gcsfilesystem.gcsio.GcsIO = lambda pipeline_options=None: gcsio_mock
sources = [
'gs://bucket/from1',
'gs://bucket/from2',
'gs://bucket/from3',
]
destinations = [
'gs://bucket/to1',
'gs://bucket/to2',
'gs://bucket/to3',
]
gcsio_mock.copy_batch.side_effect = [[
('gs://bucket/from1', 'gs://bucket/to1', None),
('gs://bucket/from2', 'gs://bucket/to2', None),
('gs://bucket/from3', 'gs://bucket/to3', None),
]]
gcsio_mock.delete_batch.side_effect = [[
('gs://bucket/from1', None),
('gs://bucket/from2', Exception("BadThings")),
('gs://bucket/from3', None),
]]
# Issue batch rename.
with self.assertRaisesRegex(BeamIOError, r'^Rename operation failed'):
self.fs.rename(sources, destinations)
gcsio_mock.copy_batch.assert_called_once_with([
('gs://bucket/from1', 'gs://bucket/to1'),
('gs://bucket/from2', 'gs://bucket/to2'),
('gs://bucket/from3', 'gs://bucket/to3'),
])
gcsio_mock.delete_batch.assert_called_once_with([
'gs://bucket/from1',
'gs://bucket/from2',
'gs://bucket/from3',
])
@mock.patch('apache_beam.io.gcp.gcsfilesystem.gcsio')
def test_rename_copy_error(self, mock_gcsio):
# Prepare mocks.
gcsio_mock = mock.MagicMock()
gcsfilesystem.gcsio.GcsIO = lambda pipeline_options=None: gcsio_mock
sources = [
'gs://bucket/from1',
'gs://bucket/from2',
'gs://bucket/from3',
]
destinations = [
'gs://bucket/to1',
'gs://bucket/to2',
'gs://bucket/to3',
]
gcsio_mock.copy_batch.side_effect = [[
('gs://bucket/from1', 'gs://bucket/to1', None),
('gs://bucket/from2', 'gs://bucket/to2', Exception("BadThings")),
('gs://bucket/from3', 'gs://bucket/to3', None),
]]
gcsio_mock.delete_batch.side_effect = [[
('gs://bucket/from1', None),
('gs://bucket/from3', None),
]]
# Issue batch rename.
with self.assertRaisesRegex(BeamIOError, r'^Rename operation failed'):
self.fs.rename(sources, destinations)
gcsio_mock.copy_batch.assert_called_once_with([
('gs://bucket/from1', 'gs://bucket/to1'),
('gs://bucket/from2', 'gs://bucket/to2'),
('gs://bucket/from3', 'gs://bucket/to3'),
])
gcsio_mock.delete_batch.assert_called_once_with([
'gs://bucket/from1',
'gs://bucket/from3',
])
@mock.patch('apache_beam.io.gcp.gcsfilesystem.gcsio')
def test_delete(self, mock_gcsio):
# Prepare mocks.
gcsio_mock = mock.MagicMock()
gcsfilesystem.gcsio.GcsIO = lambda pipeline_options=None: gcsio_mock
gcsio_mock._status.return_value = {'size': 0, 'updated': 99999.0}
files = [
'gs://bucket/from1',
'gs://bucket/from2',
'gs://bucket/from3',
]
# Issue batch delete.
self.fs.delete(files)
gcsio_mock.delete_batch.assert_called()
@mock.patch('apache_beam.io.gcp.gcsfilesystem.gcsio')
def test_delete_error(self, mock_gcsio):
# Prepare mocks.
gcsio_mock = mock.MagicMock()
gcsfilesystem.gcsio.GcsIO = lambda pipeline_options=None: gcsio_mock
gcsio_mock._status.return_value = {'size': 0, 'updated': 99999.0}
files = [
'gs://bucket/from1',
'gs://bucket/from2',
'gs://bucket/from3',
]
gcsio_mock.delete_batch.side_effect = [
[('gs://bucket/from1', None)],
[('gs://bucket/from2', Exception("BadThings"))],
[('gs://bucket/from3', None)],
]
# Issue batch delete.
with self.assertRaisesRegex(BeamIOError, r'^Delete operation failed'):
self.fs.delete(files)
gcsio_mock.delete_batch.assert_called()
def test_lineage(self):
self._verify_lineage("gs://bucket/", ("bucket", ))
self._verify_lineage("gs://bucket/foo/bar.txt", ("bucket", "foo/bar.txt"))
def _verify_lineage(self, uri, expected_segments):
lineage_mock = mock.MagicMock()
self.fs.report_lineage(uri, lineage_mock)
lineage_mock.add.assert_called_once_with(
"gcs", *expected_segments, last_segment_sep='/')
if __name__ == '__main__':
logging.getLogger().setLevel(logging.INFO)
unittest.main()