forked from fsspec/filesystem_spec
/
test_spec.py
381 lines (323 loc) · 12.1 KB
/
test_spec.py
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import json
import pickle
import numpy as np
import pytest
import fsspec
from fsspec.implementations.ftp import FTPFileSystem
from fsspec.implementations.http import HTTPFileSystem
from fsspec.spec import AbstractFileSystem, AbstractBufferedFile
class DummyTestFS(AbstractFileSystem):
protocol = "mock"
_fs_contents = (
{"name": "top_level", "type": "directory"},
{"name": "top_level/second_level", "type": "directory"},
{"name": "top_level/second_level/date=2019-10-01", "type": "directory"},
{
"name": "top_level/second_level/date=2019-10-01/a.parquet",
"type": "file",
"size": 100,
},
{
"name": "top_level/second_level/date=2019-10-01/b.parquet",
"type": "file",
"size": 100,
},
{"name": "top_level/second_level/date=2019-10-02", "type": "directory"},
{
"name": "top_level/second_level/date=2019-10-02/a.parquet",
"type": "file",
"size": 100,
},
{"name": "top_level/second_level/date=2019-10-04", "type": "directory"},
{
"name": "top_level/second_level/date=2019-10-04/a.parquet",
"type": "file",
"size": 100,
},
{"name": "misc", "type": "directory"},
{"name": "misc/foo.txt", "type": "file", "size": 100},
{"name": "glob_test", "type": "directory", "size": 0},
{"name": "glob_test/hat", "type": "directory", "size": 0},
{"name": "glob_test/hat/^foo.txt", "type": "file", "size": 100},
{"name": "glob_test/dollar", "type": "directory", "size": 0},
{"name": "glob_test/dollar/$foo.txt", "type": "file", "size": 100},
{"name": "glob_test/lbrace", "type": "directory", "size": 0},
{"name": "glob_test/lbrace/{foo.txt", "type": "file", "size": 100},
{"name": "glob_test/rbrace", "type": "directory", "size": 0},
{"name": "glob_test/rbrace/}foo.txt", "type": "file", "size": 100},
)
def __getitem__(self, name):
for item in self._fs_contents:
if item["name"] == name:
return item
raise IndexError("{name} not found!".format(name=name))
def ls(self, path, detail=True, **kwargs):
path = self._strip_protocol(path)
files = {
file["name"]: file
for file in self._fs_contents
if path == self._parent(file["name"])
}
if detail:
return [files[name] for name in sorted(files)]
return list(sorted(files))
@classmethod
def get_test_paths(cls, start_with=""):
"""Helper to return directory and file paths with no details"""
all = [
file["name"]
for file in cls._fs_contents
if file["name"].startswith(start_with)
]
return all
@pytest.mark.parametrize(
"test_path, expected",
[
(
"mock://top_level/second_level/date=2019-10-01/a.parquet",
["top_level/second_level/date=2019-10-01/a.parquet"],
),
(
"mock://top_level/second_level/date=2019-10-01/*",
[
"top_level/second_level/date=2019-10-01/a.parquet",
"top_level/second_level/date=2019-10-01/b.parquet",
],
),
("mock://top_level/second_level/date=2019-10", []),
(
"mock://top_level/second_level/date=2019-10-0[1-4]",
[
"top_level/second_level/date=2019-10-01",
"top_level/second_level/date=2019-10-02",
"top_level/second_level/date=2019-10-04",
],
),
(
"mock://top_level/second_level/date=2019-10-0[1-4]/*",
[
"top_level/second_level/date=2019-10-01/a.parquet",
"top_level/second_level/date=2019-10-01/b.parquet",
"top_level/second_level/date=2019-10-02/a.parquet",
"top_level/second_level/date=2019-10-04/a.parquet",
],
),
(
"mock://top_level/second_level/date=2019-10-0[1-4]/[a].*",
[
"top_level/second_level/date=2019-10-01/a.parquet",
"top_level/second_level/date=2019-10-02/a.parquet",
"top_level/second_level/date=2019-10-04/a.parquet",
],
),
("mock://glob_test/hat/^foo.*", ["glob_test/hat/^foo.txt"]),
("mock://glob_test/dollar/$foo.*", ["glob_test/dollar/$foo.txt"]),
("mock://glob_test/lbrace/{foo.*", ["glob_test/lbrace/{foo.txt"]),
("mock://glob_test/rbrace/}foo.*", ["glob_test/rbrace/}foo.txt"]),
],
)
def test_glob(test_path, expected):
test_fs = DummyTestFS()
res = test_fs.glob(test_path)
res = sorted(res) # FIXME: py35 back-compat
assert res == expected
res = test_fs.glob(test_path, detail=True)
assert isinstance(res, dict)
assert sorted(res) == expected # FIXME: py35 back-compat
for name, info in res.items():
assert info == test_fs[name]
@pytest.mark.parametrize(
["test_paths", "expected"],
[
(
("top_level/second_level", "top_level/sec*", "top_level/*"),
[
"top_level/second_level",
"top_level/second_level/date=2019-10-01",
"top_level/second_level/date=2019-10-01/a.parquet",
"top_level/second_level/date=2019-10-01/b.parquet",
"top_level/second_level/date=2019-10-02",
"top_level/second_level/date=2019-10-02/a.parquet",
"top_level/second_level/date=2019-10-04",
"top_level/second_level/date=2019-10-04/a.parquet",
],
),
(("misc/foo.txt", "misc/*.txt"), ["misc/foo.txt"]),
(
("",),
DummyTestFS.get_test_paths() + [DummyTestFS.root_marker],
),
],
# ids=["all_second_level", "single_file"],
)
def test_expand_path_recursive(test_paths, expected):
"""Test a number of paths and then their combination which should all yield
the same set of expanded paths"""
test_fs = DummyTestFS()
# test single query
for test_path in test_paths:
paths = test_fs.expand_path(test_path, recursive=True)
assert sorted(paths) == sorted(expected)
# test with all queries
paths = test_fs.expand_path(list(test_paths), recursive=True)
assert sorted(paths) == sorted(expected)
@pytest.mark.parametrize(
["filesystem", "host", "test_path", "expected"],
[
(
FTPFileSystem,
"ftp.fau.de",
"ftp://ftp.fau.de/debian-cd/current/amd64/log/success",
[
"/debian-cd/current/amd64/log/success/BD.log",
"/debian-cd/current/amd64/log/success/DLBD.log",
"/debian-cd/current/amd64/log/success/DVD.log",
"/debian-cd/current/amd64/log/success/EDUNI.log",
"/debian-cd/current/amd64/log/success/EDUUSB.log",
"/debian-cd/current/amd64/log/success/MACNI.log",
"/debian-cd/current/amd64/log/success/NI.log",
"/debian-cd/current/amd64/log/success/USB16G.log",
"/debian-cd/current/amd64/log/success/XFCECD.log",
],
),
(
HTTPFileSystem,
"https://ftp.fau.de",
"https://ftp.fau.de/debian-cd/current/amd64/log/success",
[
"https://ftp.fau.de/debian-cd/current/amd64/log/success",
"https://ftp.fau.de/debian-cd/current/amd64/log/success/?C=D;O=A",
"https://ftp.fau.de/debian-cd/current/amd64/log/success/?C=M;O=A",
"https://ftp.fau.de/debian-cd/current/amd64/log/success/?C=N;O=D",
"https://ftp.fau.de/debian-cd/current/amd64/log/success/?C=S;O=A",
"https://ftp.fau.de/debian-cd/current/amd64/log/success/BD.log",
"https://ftp.fau.de/debian-cd/current/amd64/log/success/DLBD.log",
"https://ftp.fau.de/debian-cd/current/amd64/log/success/DVD.log",
"https://ftp.fau.de/debian-cd/current/amd64/log/success/EDUNI.log",
"https://ftp.fau.de/debian-cd/current/amd64/log/success/EDUUSB.log",
"https://ftp.fau.de/debian-cd/current/amd64/log/success/MACNI.log",
"https://ftp.fau.de/debian-cd/current/amd64/log/success/NI.log",
"https://ftp.fau.de/debian-cd/current/amd64/log/success/USB16G.log",
"https://ftp.fau.de/debian-cd/current/amd64/log/success/XFCECD.log",
],
),
],
)
def test_find(filesystem, host, test_path, expected):
""" Test .find() method on debian server (available as ftp and https) with constant folder """
test_fs = filesystem(host)
filenames = test_fs.find(test_path)
assert filenames == expected
def test_find_details():
test_fs = DummyTestFS()
filenames = test_fs.find("/")
details = test_fs.find("/", detail=True)
for filename in filenames:
assert details[filename] == test_fs.info(filename)
def test_cache():
fs = DummyTestFS()
fs2 = DummyTestFS()
assert fs is fs2
assert len(fs._cache) == 1
del fs2
assert len(fs._cache) == 1
del fs
assert len(DummyTestFS._cache) == 1
DummyTestFS.clear_instance_cache()
assert len(DummyTestFS._cache) == 0
def test_alias():
with pytest.warns(FutureWarning, match="add_aliases"):
DummyTestFS(add_aliases=True)
def test_add_docs_warns():
with pytest.warns(FutureWarning, match="add_docs"):
AbstractFileSystem(add_docs=True)
def test_cache_options():
fs = DummyTestFS()
f = AbstractBufferedFile(fs, "misc/foo.txt", cache_type="bytes")
assert f.cache.trim
# TODO: dummy buffered file
f = AbstractBufferedFile(
fs, "misc/foo.txt", cache_type="bytes", cache_options=dict(trim=False)
)
assert f.cache.trim is False
f = fs.open("misc/foo.txt", cache_type="bytes", cache_options=dict(trim=False))
assert f.cache.trim is False
def test_trim_kwarg_warns():
fs = DummyTestFS()
with pytest.warns(FutureWarning, match="cache_options"):
AbstractBufferedFile(fs, "misc/foo.txt", cache_type="bytes", trim=False)
def test_eq():
fs = DummyTestFS()
result = fs == 1
assert result is False
def test_pickle_multiple():
a = DummyTestFS(1)
b = DummyTestFS(2, bar=1)
x = pickle.dumps(a)
y = pickle.dumps(b)
del a, b
DummyTestFS.clear_instance_cache()
result = pickle.loads(x)
assert result.storage_args == (1,)
assert result.storage_options == {}
result = pickle.loads(y)
assert result.storage_args == (2,)
assert result.storage_options == dict(bar=1)
def test_json():
a = DummyTestFS(1)
b = DummyTestFS(2, bar=1)
outa = a.to_json()
outb = b.to_json()
assert json.loads(outb) # is valid JSON
assert a != b
assert "bar" in outb
assert DummyTestFS.from_json(outa) is a
assert DummyTestFS.from_json(outb) is b
@pytest.mark.parametrize(
"dt",
[
np.int8,
np.int16,
np.int32,
np.int64,
np.uint8,
np.uint16,
np.uint32,
np.uint64,
np.float32,
np.float64,
],
)
def test_readinto_with_numpy(tmpdir, dt):
store_path = str(tmpdir / "test_arr.npy")
arr = np.arange(10, dtype=dt)
arr.tofile(store_path)
arr2 = np.empty_like(arr)
with fsspec.open(store_path, "rb") as f:
f.readinto(arr2)
assert np.array_equal(arr, arr2)
@pytest.mark.parametrize(
"dt",
[
np.int8,
np.int16,
np.int32,
np.int64,
np.uint8,
np.uint16,
np.uint32,
np.uint64,
np.float32,
np.float64,
],
)
def test_readinto_with_multibyte(ftp_writable, tmpdir, dt):
host, port, user, pw = ftp_writable
ftp = FTPFileSystem(host=host, port=port, username=user, password=pw)
with ftp.open("/out", "wb") as fp:
arr = np.arange(10, dtype=dt)
fp.write(arr.tobytes())
with ftp.open("/out", "rb") as fp:
arr2 = np.empty_like(arr)
fp.readinto(arr2)
assert np.array_equal(arr, arr2)