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dvc/tests/unit/remote/test_remote_tree.py
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Batuhan Taskaya d4a3df73df s3: fsspec migration (#5683)
* s3: migrate to s3fs

* s3: strip etag

* s3: disable instance cache

* tests: use the proper remote:// form in test_checkout

* tests: move/drop some tests

* setup: depend on s3fs

* tests: normalize s3 tests with some cleanups

* Use _download/_upload with old implementation

* fsspec: cache .exists() results

* setup: pin the boto version

* setup: install s3fs[boto3]

* s3: proper exception management

* s3: config improvements

* setup: reference without quotes

* setup: install boto separately

* setup: install moto server

* s3: mocking adjustments for moto_server

* s3: mark some fixtures with scope=session

* s3: s3_fake_creds_file scopes to func

* fsspec: add some docs regarding exists() optimization

* fsspec: exists() fallback

* fsspec: revert exists() optimization

* tests: ssl_verify => verify

* setup: temporarily fetch from master

* s3: add boto as a requirement

* tests: do an extra check regarding race conditions

* tests: use motoserver docker image

* tests: wrap config deletion with try/finally

* tests: disable s3 by default

* setup: upgrade fsspec
2021-05-05 11:36:10 +03:00

153 lines
4.4 KiB
Python

import os
import pytest
from dvc.fs.s3 import S3FileSystem
from dvc.path_info import PathInfo
from dvc.remote import get_remote
from dvc.utils.fs import walk_files
remotes = [pytest.lazy_fixture(fix) for fix in ["gs", "s3"]]
FILE_WITH_CONTENTS = {
"data1.txt": "",
# "empty_dir/": "",
"empty_file": "",
"foo": "foo",
"data/alice": "alice",
"data/alpha": "alpha",
"data/subdir-file.txt": "subdir",
"data/subdir/1": "1",
"data/subdir/2": "2",
"data/subdir/3": "3",
# "data/subdir/empty_dir/": "",
"data/subdir/empty_file": "",
}
@pytest.fixture
def remote(request, dvc):
cloud = request.param
cloud.gen(FILE_WITH_CONTENTS)
return get_remote(dvc, **cloud.config)
@pytest.mark.needs_internet
@pytest.mark.parametrize("remote", remotes, indirect=True)
def test_isdir(remote):
test_cases = [
(True, "data"),
(True, "data/"),
(True, "data/subdir"),
# (True, "empty_dir"),
(False, "foo"),
(False, "data/alice"),
(False, "data/al"),
(False, "data/subdir/1"),
]
for expected, path in test_cases:
assert remote.fs.isdir(remote.fs.path_info / path) == expected
@pytest.mark.needs_internet
@pytest.mark.parametrize("remote", remotes, indirect=True)
def test_exists(remote):
test_cases = [
(True, "data"),
(True, "data/"),
(True, "data/subdir"),
# (True, "empty_dir"),
(True, "empty_file"),
(True, "foo"),
(True, "data/alice"),
(True, "data/subdir/1"),
(False, "data/al"),
# (False, "foo/"),
(True, "data1.txt"),
]
for expected, path in test_cases:
assert remote.fs.exists(remote.fs.path_info / path) == expected
@pytest.mark.needs_internet
@pytest.mark.parametrize("remote", remotes, indirect=True)
def test_walk_files(remote):
files = [
remote.fs.path_info / "data/alice",
remote.fs.path_info / "data/alpha",
remote.fs.path_info / "data/subdir-file.txt",
remote.fs.path_info / "data/subdir/1",
remote.fs.path_info / "data/subdir/2",
remote.fs.path_info / "data/subdir/3",
remote.fs.path_info / "data/subdir/empty_file",
]
assert list(remote.fs.walk_files(remote.fs.path_info / "data")) == files
@pytest.mark.parametrize("remote", [pytest.lazy_fixture("s3")], indirect=True)
def test_copy_preserve_etag_across_buckets(remote, dvc):
s3 = remote.fs
s3.fs.mkdir("another/")
another = S3FileSystem(
dvc, {**remote.fs.config, "url": "s3://another", "region": "us-east-1"}
)
from_info = remote.fs.path_info / "foo"
to_info = another.path_info / "foo"
remote.fs.copy(from_info, to_info)
from_hash = remote.fs.info(from_info)["etag"]
to_hash = another.info(to_info)["etag"]
assert from_hash == to_hash
@pytest.mark.needs_internet
@pytest.mark.parametrize("remote", remotes, indirect=True)
def test_isfile(remote):
test_cases = [
# (False, "empty_dir/"),
(True, "empty_file"),
(True, "foo"),
(True, "data/alice"),
(True, "data/alpha"),
(True, "data/subdir/1"),
(True, "data/subdir/2"),
(True, "data/subdir/3"),
# (False, "data/subdir/empty_dir/"),
(True, "data/subdir/empty_file"),
(False, "something-that-does-not-exist"),
(False, "data/subdir/empty-file/"),
# (False, "empty_dir"),
]
for expected, path in test_cases:
assert remote.fs.isfile(remote.fs.path_info / path) == expected
@pytest.mark.needs_internet
@pytest.mark.parametrize("remote", remotes, indirect=True)
def test_download_dir(remote, tmpdir):
path = str(tmpdir / "data")
to_info = PathInfo(path)
remote.fs.download(remote.fs.path_info / "data", to_info)
assert os.path.isdir(path)
data_dir = tmpdir / "data"
assert len(list(walk_files(path))) == 7
assert (data_dir / "alice").read_text(encoding="utf-8") == "alice"
assert (data_dir / "alpha").read_text(encoding="utf-8") == "alpha"
assert (data_dir / "subdir-file.txt").read_text(
encoding="utf-8"
) == "subdir"
assert (data_dir / "subdir" / "1").read_text(encoding="utf-8") == "1"
assert (data_dir / "subdir" / "2").read_text(encoding="utf-8") == "2"
assert (data_dir / "subdir" / "3").read_text(encoding="utf-8") == "3"
assert (data_dir / "subdir" / "empty_file").read_text(
encoding="utf-8"
) == ""