File size: 3,248 Bytes
2b06d1d | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 | import importlib
import os
import fsspec
import pytest
from fsspec import register_implementation
from fsspec.registry import _registry as _fsspec_registry
from datasets.filesystems import COMPRESSION_FILESYSTEMS, extract_path_from_uri, is_remote_filesystem
from .utils import require_lz4, require_zstandard
def test_mockfs(mockfs):
assert "mock" in _fsspec_registry
assert "bz2" in _fsspec_registry
def test_non_mockfs():
assert "mock" not in _fsspec_registry
assert "bz2" in _fsspec_registry
def test_extract_path_from_uri():
mock_bucket = "mock-s3-bucket"
dataset_path = f"s3://{mock_bucket}"
dataset_path = extract_path_from_uri(dataset_path)
assert dataset_path.startswith("s3://") is False
dataset_path = "./local/path"
new_dataset_path = extract_path_from_uri(dataset_path)
assert dataset_path == new_dataset_path
def test_is_remote_filesystem(mockfs):
is_remote = is_remote_filesystem(mockfs)
assert is_remote is True
fs = fsspec.filesystem("file")
is_remote = is_remote_filesystem(fs)
assert is_remote is False
@pytest.mark.parametrize("compression_fs_class", COMPRESSION_FILESYSTEMS)
def test_compression_filesystems(compression_fs_class, gz_file, bz2_file, lz4_file, zstd_file, xz_file, text_file):
input_paths = {"gzip": gz_file, "xz": xz_file, "zstd": zstd_file, "bz2": bz2_file, "lz4": lz4_file}
input_path = input_paths[compression_fs_class.protocol]
if input_path is None:
reason = f"for '{compression_fs_class.protocol}' compression protocol, "
if compression_fs_class.protocol == "lz4":
reason += require_lz4.kwargs["reason"]
elif compression_fs_class.protocol == "zstd":
reason += require_zstandard.kwargs["reason"]
pytest.skip(reason)
fs = fsspec.filesystem(compression_fs_class.protocol, fo=input_path)
assert isinstance(fs, compression_fs_class)
expected_filename = os.path.basename(input_path)
expected_filename = expected_filename[: expected_filename.rindex(".")]
assert fs.glob("*") == [expected_filename]
with fs.open(expected_filename, "r", encoding="utf-8") as f, open(text_file, encoding="utf-8") as expected_file:
assert f.read() == expected_file.read()
@pytest.mark.parametrize("protocol", ["zip", "gzip"])
def test_fs_isfile(protocol, zip_jsonl_path, jsonl_gz_path):
compressed_file_paths = {"zip": zip_jsonl_path, "gzip": jsonl_gz_path}
compressed_file_path = compressed_file_paths[protocol]
member_file_path = "dataset.jsonl"
path = f"{protocol}://{member_file_path}::{compressed_file_path}"
fs, *_ = fsspec.get_fs_token_paths(path)
assert fs.isfile(member_file_path)
assert not fs.isfile("non_existing_" + member_file_path)
def test_fs_overwrites():
protocol = "bz2"
# Import module
import datasets.filesystems
# Overwrite protocol and reload
register_implementation(protocol, None, clobber=True)
with pytest.warns(UserWarning) as warning_info:
importlib.reload(datasets.filesystems)
assert len(warning_info) == 1
assert (
str(warning_info[0].message)
== f"A filesystem protocol was already set for {protocol} and will be overwritten."
)
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