Files
dvc/tests/func/test_fs.py
T
Batuhan Taskaya 9aec8f1926 dvc: get rid of path_info
Intermediate PR in removing path_info from our code base.

It is completely removed from the main codebase and is still
being used in tests, which will be migrated in the followups.

For fs-specific simple path manipulation, we've introduced
`fs.path` helper (similar to `os.path`).

Fixes #6774
2021-11-10 00:52:48 +02:00

549 lines
16 KiB
Python

import io
import os
from operator import itemgetter
from os.path import join
import fsspec
import pytest
from dvc.fs import get_cloud_fs
from dvc.fs.local import LocalFileSystem
from dvc.repo import Repo
from dvc.scm import SCM
from tests.basic_env import TestDir, TestGit, TestGitSubmodule
class TestLocalFileSystem(TestDir):
def setUp(self):
super().setUp()
self.fs = LocalFileSystem()
def test_open(self):
with self.fs.open(self.FOO) as fd:
self.assertEqual(fd.read(), self.FOO_CONTENTS)
with self.fs.open(self.UNICODE, encoding="utf-8") as fd:
self.assertEqual(fd.read(), self.UNICODE_CONTENTS)
def test_exists(self):
self.assertTrue(self.fs.exists(self.FOO))
self.assertTrue(self.fs.exists(self.UNICODE))
self.assertFalse(self.fs.exists("not-existing-file"))
def test_isdir(self):
self.assertTrue(self.fs.isdir(self.DATA_DIR))
self.assertFalse(self.fs.isdir(self.FOO))
self.assertFalse(self.fs.isdir("not-existing-file"))
def test_isfile(self):
self.assertTrue(self.fs.isfile(self.FOO))
self.assertFalse(self.fs.isfile(self.DATA_DIR))
self.assertFalse(self.fs.isfile("not-existing-file"))
class GitFileSystemTests:
# pylint: disable=no-member
def test_open(self):
self.scm.add([self.FOO, self.UNICODE, self.DATA_DIR])
self.scm.commit("add")
fs = self.scm.get_fs("master")
with fs.open(self.FOO) as fd:
self.assertEqual(fd.read(), self.FOO_CONTENTS)
with fs.open(self.UNICODE) as fd:
self.assertEqual(fd.read(), self.UNICODE_CONTENTS)
with self.assertRaises(IOError):
fs.open("not-existing-file")
with self.assertRaises(IOError):
fs.open(self.DATA_DIR)
def test_exists(self):
fs = self.scm.get_fs("master")
self.assertFalse(fs.exists(self.FOO))
self.assertFalse(fs.exists(self.UNICODE))
self.assertFalse(fs.exists(self.DATA_DIR))
self.scm.add([self.FOO, self.UNICODE, self.DATA])
self.scm.commit("add")
fs = self.scm.get_fs("master")
self.assertTrue(fs.exists(self.FOO))
self.assertTrue(fs.exists(self.UNICODE))
self.assertTrue(fs.exists(self.DATA_DIR))
self.assertFalse(fs.exists("non-existing-file"))
def test_isdir(self):
self.scm.add([self.FOO, self.DATA_DIR])
self.scm.commit("add")
fs = self.scm.get_fs("master")
self.assertTrue(fs.isdir(self.DATA_DIR))
self.assertFalse(fs.isdir(self.FOO))
self.assertFalse(fs.isdir("non-existing-file"))
def test_isfile(self):
self.scm.add([self.FOO, self.DATA_DIR])
self.scm.commit("add")
fs = self.scm.get_fs("master")
self.assertTrue(fs.isfile(self.FOO))
self.assertFalse(fs.isfile(self.DATA_DIR))
self.assertFalse(fs.isfile("not-existing-file"))
class TestGitFileSystem(TestGit, GitFileSystemTests):
def setUp(self):
super().setUp()
self.scm = SCM(self._root_dir)
class TestGitSubmoduleFileSystem(TestGitSubmodule, GitFileSystemTests):
def setUp(self):
super().setUp()
self.scm = SCM(self._root_dir)
self._pushd(self._root_dir)
class AssertWalkEqualMixin:
def assertWalkEqual(self, actual, expected, msg=None):
def convert_to_sets(walk_results):
return [
(root, set(dirs), set(nondirs))
for root, dirs, nondirs in walk_results
]
self.assertEqual(
convert_to_sets(actual), convert_to_sets(expected), msg=msg
)
class TestWalkInNoSCM(AssertWalkEqualMixin, TestDir):
def test(self):
fs = LocalFileSystem()
self.assertWalkEqual(
fs.walk(self._root_dir),
[
(
self._root_dir,
["data_dir"],
["code.py", "bar", "тест", "foo"],
),
(join(self._root_dir, "data_dir"), ["data_sub_dir"], ["data"]),
(
join(self._root_dir, "data_dir", "data_sub_dir"),
[],
["data_sub"],
),
],
)
def test_subdir(self):
fs = LocalFileSystem()
self.assertWalkEqual(
fs.walk(join("data_dir", "data_sub_dir")),
[(join("data_dir", "data_sub_dir"), [], ["data_sub"])],
)
class TestWalkInGit(AssertWalkEqualMixin, TestGit):
def test_nobranch(self):
fs = LocalFileSystem(url=self._root_dir)
walk_result = []
for root, dirs, files in fs.walk("."):
dirs[:] = [i for i in dirs if i != ".git"]
walk_result.append((root, dirs, files))
self.assertWalkEqual(
walk_result,
[
(".", ["data_dir"], ["bar", "тест", "code.py", "foo"]),
(join("data_dir"), ["data_sub_dir"], ["data"]),
(join("data_dir", "data_sub_dir"), [], ["data_sub"]),
],
)
self.assertWalkEqual(
fs.walk(join("data_dir", "data_sub_dir")),
[(join("data_dir", "data_sub_dir"), [], ["data_sub"])],
)
def test_branch(self):
scm = SCM(self._root_dir)
scm.add([self.DATA_SUB_DIR])
scm.commit("add data_dir/data_sub_dir/data_sub")
fs = scm.get_fs("master")
self.assertWalkEqual(
fs.walk("."),
[
(self._root_dir, ["data_dir"], ["code.py"]),
(join(self._root_dir, "data_dir"), ["data_sub_dir"], []),
(
join(self._root_dir, "data_dir", "data_sub_dir"),
[],
["data_sub"],
),
],
)
self.assertWalkEqual(
fs.walk(join("data_dir", "data_sub_dir")),
[
(
join(self._root_dir, "data_dir", "data_sub_dir"),
[],
["data_sub"],
)
],
)
def test_cleanfs_subrepo(tmp_dir, dvc, scm, monkeypatch):
tmp_dir.gen({"subdir": {}})
subrepo_dir = tmp_dir / "subdir"
with subrepo_dir.chdir():
subrepo = Repo.init(subdir=True)
subrepo_dir.gen({"foo": "foo", "dir": {"bar": "bar"}})
path = subrepo_dir.fs_path
assert dvc.fs.exists(dvc.fs.path.join(path, "foo"))
assert dvc.fs.isfile(dvc.fs.path.join(path, "foo"))
assert dvc.fs.exists(dvc.fs.path.join(path, "dir"))
assert dvc.fs.isdir(dvc.fs.path.join(path, "dir"))
assert subrepo.fs.exists(subrepo.fs.path.join(path, "foo"))
assert subrepo.fs.isfile(subrepo.fs.path.join(path, "foo"))
assert subrepo.fs.exists(subrepo.fs.path.join(path, "dir"))
assert subrepo.fs.isdir(subrepo.fs.path.join(path, "dir"))
def test_walk_dont_ignore_subrepos(tmp_dir, scm, dvc):
tmp_dir.dvc_gen({"foo": "foo"}, commit="add foo")
subrepo_dir = tmp_dir / "subdir"
subrepo_dir.mkdir()
with subrepo_dir.chdir():
Repo.init(subdir=True)
scm.add(["subdir"])
scm.commit("Add subrepo")
dvc_fs = dvc.fs
dvc._reset()
scm_fs = scm.get_fs("HEAD")
path = os.fspath(tmp_dir)
get_dirs = itemgetter(1)
assert set(get_dirs(next(dvc_fs.walk(path)))) == {".dvc", "subdir", ".git"}
assert set(get_dirs(next(scm_fs.walk(path)))) == {".dvc", "subdir"}
@pytest.mark.parametrize(
"cloud",
[
pytest.lazy_fixture("local_cloud"),
pytest.lazy_fixture("s3"),
pytest.param(
pytest.lazy_fixture("gs"), marks=pytest.mark.needs_internet
),
pytest.lazy_fixture("hdfs"),
pytest.lazy_fixture("http"),
],
)
def test_fs_getsize(dvc, cloud):
cloud.gen({"data": {"foo": "foo"}, "baz": "baz baz"})
cls, config, path = get_cloud_fs(dvc, **cloud.config)
fs = cls(**config)
assert fs.getsize(fs.path.join(path, "baz")) == 7
assert fs.getsize(fs.path.join(path, "data", "foo")) == 3
@pytest.mark.needs_internet
@pytest.mark.parametrize(
"cloud",
[
pytest.lazy_fixture("azure"),
pytest.lazy_fixture("gs"),
pytest.lazy_fixture("gdrive"),
pytest.lazy_fixture("hdfs"),
pytest.lazy_fixture("local_cloud"),
pytest.lazy_fixture("oss"),
pytest.lazy_fixture("s3"),
pytest.lazy_fixture("ssh"),
pytest.lazy_fixture("webhdfs"),
],
)
def test_fs_upload_fobj(dvc, tmp_dir, cloud):
tmp_dir.gen("foo", "foo")
cls, config, path = get_cloud_fs(dvc, **cloud.config)
fs = cls(**config)
from_info = tmp_dir / "foo"
to_info = fs.path.join(path, "foo")
with open(from_info, "rb") as stream:
fs.upload_fobj(stream, to_info)
assert fs.exists(to_info)
with fs.open(to_info, "rb") as stream:
assert stream.read() == b"foo"
@pytest.mark.needs_internet
@pytest.mark.parametrize("cloud", [pytest.lazy_fixture("gdrive")])
def test_fs_ls(dvc, cloud):
cloud.gen(
{
"directory": {
"foo": "foo",
"bar": "bar",
"baz": {"quux": "quux", "egg": {"foo": "foo"}},
"empty": {},
}
}
)
cls, config, path = get_cloud_fs(dvc, **cloud.config)
fs = cls(**config)
path = os.path.join(path, "directory")
assert {
os.path.basename(file_key.rstrip("/")) for file_key in fs.ls(path)
} == {
"foo",
"bar",
"baz",
"empty",
}
assert set(fs.ls(fs.path.join(path, "empty"))) == set()
assert {
(detail["type"], os.path.basename(detail["name"].rstrip("/")))
for detail in fs.ls(fs.path.join(path, "baz"), detail=True)
} == {("file", "quux"), ("directory", "egg")}
@pytest.mark.parametrize(
"cloud",
[
pytest.lazy_fixture("azure"),
pytest.param(
pytest.lazy_fixture("gs"), marks=pytest.mark.needs_internet
),
],
)
def test_fs_fsspec_path_management(dvc, cloud):
cloud.gen({"foo": "foo", "data": {"bar": "bar", "baz": {"foo": "foo"}}})
cls, config, _ = get_cloud_fs(dvc, **cloud.config)
fs = cls(**config)
root = cloud.parents[len(cloud.parents) - 1]
bucket_details = fs.info(root.fs_path)
# special conditions: name always points to the bucket name
assert bucket_details["name"] == root.bucket
assert bucket_details["type"] == "directory"
data = cloud / "data"
data_details = fs.info(data.fs_path)
assert data_details["name"].rstrip("/") == data.fs_path
assert data_details["type"] == "directory"
@pytest.mark.needs_internet
@pytest.mark.parametrize(
"cloud",
[
pytest.lazy_fixture("azure"),
pytest.lazy_fixture("gs"),
pytest.lazy_fixture("s3"),
pytest.lazy_fixture("webdav"),
],
)
def test_fs_makedirs_on_upload_and_copy(dvc, cloud):
cls, config, _ = get_cloud_fs(dvc, **cloud.config)
fs = cls(**config)
with io.BytesIO(b"foo") as stream:
fs.upload(stream, (cloud / "dir" / "foo").fs_path)
assert fs.isdir((cloud / "dir").fs_path)
assert fs.exists((cloud / "dir" / "foo").fs_path)
fs.copy((cloud / "dir" / "foo").fs_path, (cloud / "dir2" / "foo").fs_path)
assert fs.isdir((cloud / "dir2").fs_path)
assert fs.exists((cloud / "dir2" / "foo").fs_path)
@pytest.mark.needs_internet
@pytest.mark.parametrize(
"cloud",
[
pytest.lazy_fixture("azure"),
pytest.lazy_fixture("gs"),
pytest.lazy_fixture("gdrive"),
pytest.lazy_fixture("hdfs"),
pytest.lazy_fixture("local_cloud"),
pytest.lazy_fixture("oss"),
pytest.lazy_fixture("s3"),
pytest.lazy_fixture("ssh"),
pytest.lazy_fixture("webhdfs"),
pytest.lazy_fixture("webdav"),
pytest.lazy_fixture("http"),
],
)
def test_upload_callback(tmp_dir, dvc, cloud):
tmp_dir.gen("foo", "foo")
cls, config, _ = get_cloud_fs(dvc, **cloud.config)
fs = cls(**config)
expected_size = os.path.getsize(tmp_dir / "foo")
callback = fsspec.Callback()
fs.upload(
(tmp_dir / "foo").fs_path,
(cloud / "foo").fs_path,
callback=callback,
)
assert callback.size == expected_size
assert callback.value == expected_size
@pytest.mark.needs_internet
@pytest.mark.parametrize(
"cloud",
[
pytest.lazy_fixture("azure"),
pytest.lazy_fixture("gs"),
pytest.lazy_fixture("gdrive"),
pytest.lazy_fixture("hdfs"),
pytest.lazy_fixture("local_cloud"),
pytest.lazy_fixture("oss"),
pytest.lazy_fixture("s3"),
pytest.lazy_fixture("ssh"),
pytest.lazy_fixture("webhdfs"),
pytest.lazy_fixture("webdav"),
pytest.lazy_fixture("http"),
],
)
def test_download_callback(tmp_dir, dvc, cloud, local_cloud):
cls, config, _ = get_cloud_fs(dvc, **cloud.config)
fs = cls(**config)
(tmp_dir / "to_upload").write_text("foo")
fs.upload((tmp_dir / "to_upload").fs_path, (cloud / "foo").fs_path)
expected_size = fs.getsize((cloud / "foo").fs_path)
callback = fsspec.Callback()
fs.download_file(
(cloud / "foo").fs_path,
(tmp_dir / "foo").fs_path,
callback=callback,
)
assert callback.size == expected_size
assert callback.value == expected_size
assert (tmp_dir / "foo").read_text() == "foo"
@pytest.mark.needs_internet
@pytest.mark.parametrize(
"cloud",
[
pytest.lazy_fixture("azure"),
pytest.lazy_fixture("gs"),
pytest.lazy_fixture("hdfs"),
pytest.lazy_fixture("local_cloud"),
pytest.lazy_fixture("s3"),
pytest.param(
pytest.lazy_fixture("ssh"),
marks=pytest.mark.skipif(
os.name == "nt", reason="unsupported on Windows."
),
),
pytest.lazy_fixture("gdrive"),
pytest.lazy_fixture("webdav"),
],
)
def test_download_dir_callback(tmp_dir, dvc, cloud):
cls, config, _ = get_cloud_fs(dvc, **cloud.config)
fs = cls(**config)
cloud.gen({"dir": {"foo": "foo", "bar": "bar"}})
callback = fsspec.Callback()
fs.download(
(cloud / "dir").fs_path, (tmp_dir / "dir").fs_path, callback=callback
)
assert callback.size == 2
assert callback.value == 2
assert (tmp_dir / "dir").read_text() == {"foo": "foo", "bar": "bar"}
@pytest.mark.parametrize("fs_type", ["git", "dvc"])
def test_download_callbacks_on_dvc_git_fs(tmp_dir, dvc, scm, fs_type):
gen = tmp_dir.scm_gen if fs_type == "git" else tmp_dir.dvc_gen
gen({"dir": {"foo": "foo", "bar": "bar"}, "file": "file"}, commit="gen")
fs = dvc.dvcfs if fs_type == "dvc" else scm.get_fs("HEAD")
callback = fsspec.Callback()
fs.download(
(tmp_dir / "file").fs_path,
(tmp_dir / "file2").fs_path,
callback=callback,
)
size = os.path.getsize(tmp_dir / "file")
assert (tmp_dir / "file2").read_text() == "file"
assert callback.size == size
assert callback.value == size
if fs_type == "git":
pytest.skip("gitfs does not support download_dir")
callback = fsspec.Callback()
fs.download(
(tmp_dir / "dir").fs_path,
(tmp_dir / "dir2").fs_path,
callback=callback,
)
assert (tmp_dir / "dir2").read_text() == {"foo": "foo", "bar": "bar"}
assert callback.size == 2
assert callback.value == 2
def test_callback_on_repo_fs(tmp_dir, dvc, scm):
tmp_dir.dvc_gen({"dir": {"bar": "bar"}}, commit="dvc")
tmp_dir.scm_gen({"dir": {"foo": "foo"}}, commit="git")
fs = dvc.repo_fs
callback = fsspec.Callback()
fs.download(
(tmp_dir / "dir").fs_path,
(tmp_dir / "dir2").fs_path,
callback=callback,
)
assert (tmp_dir / "dir2").read_text() == {"foo": "foo", "bar": "bar"}
assert callback.size == 2
assert callback.value == 2
callback = fsspec.Callback()
fs.download(
(tmp_dir / "dir" / "foo").fs_path,
(tmp_dir / "foo").fs_path,
callback=callback,
)
size = os.path.getsize(tmp_dir / "dir" / "foo")
assert (tmp_dir / "foo").read_text() == "foo"
assert callback.size == size
assert callback.value == size
callback = fsspec.Callback()
fs.download(
(tmp_dir / "dir" / "bar").fs_path,
(tmp_dir / "bar").fs_path,
callback=callback,
)
size = os.path.getsize(tmp_dir / "dir" / "bar")
assert (tmp_dir / "bar").read_text() == "bar"
assert callback.size == size
assert callback.value == size