lightning/tests/tests_fabric/utilities/test_cloud_io.py

92 lines
3.6 KiB
Python

# Copyright The Lightning AI team.
#
# Licensed 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.
import os
import fsspec
from fsspec.implementations.local import LocalFileSystem
from fsspec.spec import AbstractFileSystem
from lightning.fabric.utilities.cloud_io import _is_dir, get_filesystem
def test_get_filesystem_custom_filesystem():
_DUMMY_PRFEIX = "dummy"
class DummyFileSystem(LocalFileSystem): ...
fsspec.register_implementation(_DUMMY_PRFEIX, DummyFileSystem, clobber=True)
output_file = os.path.join(f"{_DUMMY_PRFEIX}://", "tmpdir/tmp_file")
assert isinstance(get_filesystem(output_file), DummyFileSystem)
def test_get_filesystem_local_filesystem():
assert isinstance(get_filesystem("tmpdir/tmp_file"), LocalFileSystem)
def test_is_dir_with_local_filesystem(tmp_path):
fs = LocalFileSystem()
tmp_existing_directory = tmp_path
tmp_non_existing_directory = tmp_path / "non_existing"
assert _is_dir(fs, tmp_existing_directory)
assert not _is_dir(fs, tmp_non_existing_directory)
def test_is_dir_with_object_storage_filesystem():
class MockAzureBlobFileSystem(AbstractFileSystem):
def isdir(self, path):
return path.startswith("azure://") and not path.endswith(".txt")
def isfile(self, path):
return path.startswith("azure://") and path.endswith(".txt")
class MockGCSFileSystem(AbstractFileSystem):
def isdir(self, path):
return path.startswith("gcs://") and not path.endswith(".txt")
def isfile(self, path):
return path.startswith("gcs://") and path.endswith(".txt")
class MockS3FileSystem(AbstractFileSystem):
def isdir(self, path):
return path.startswith("s3://") and not path.endswith(".txt")
def isfile(self, path):
return path.startswith("s3://") and path.endswith(".txt")
fsspec.register_implementation("azure", MockAzureBlobFileSystem, clobber=True)
fsspec.register_implementation("gcs", MockGCSFileSystem, clobber=True)
fsspec.register_implementation("s3", MockS3FileSystem, clobber=True)
azure_directory = "azure://container/directory/"
azure_file = "azure://container/file.txt"
gcs_directory = "gcs://bucket/directory/"
gcs_file = "gcs://bucket/file.txt"
s3_directory = "s3://bucket/directory/"
s3_file = "s3://bucket/file.txt"
assert _is_dir(get_filesystem(azure_directory), azure_directory)
assert _is_dir(get_filesystem(azure_directory), azure_directory, strict=True)
assert not _is_dir(get_filesystem(azure_directory), azure_file)
assert not _is_dir(get_filesystem(azure_directory), azure_file, strict=True)
assert _is_dir(get_filesystem(gcs_directory), gcs_directory)
assert _is_dir(get_filesystem(gcs_directory), gcs_directory, strict=True)
assert not _is_dir(get_filesystem(gcs_directory), gcs_file)
assert not _is_dir(get_filesystem(gcs_directory), gcs_file, strict=True)
assert _is_dir(get_filesystem(s3_directory), s3_directory)
assert _is_dir(get_filesystem(s3_directory), s3_directory, strict=True)
assert not _is_dir(get_filesystem(s3_directory), s3_file)
assert not _is_dir(get_filesystem(s3_directory), s3_file, strict=True)