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from __future__ import annotations
import os
import shutil
from abc import ABC
from dataclasses import dataclass, field
from io import StringIO
from typing import Dict, List, Optional
from unittest import TestCase
from unittest.mock import patch
from openhands.storage.files import FileStore
from openhands.storage.google_cloud import GoogleCloudFileStore
from openhands.storage.local import LocalFileStore
from openhands.storage.memory import InMemoryFileStore
class _StorageTest(ABC):
store: FileStore
def get_store(self) -> FileStore:
try:
self.store.delete('')
except Exception:
pass
return self.store
def test_basic_fileops(self):
filename = 'test.txt'
store = self.get_store()
store.write(filename, 'Hello, world!')
self.assertEqual(store.read(filename), 'Hello, world!')
self.assertEqual(store.list(''), [filename])
store.delete(filename)
with self.assertRaises(FileNotFoundError):
store.read(filename)
def test_complex_path_fileops(self):
filenames = ['foo.bar.baz', './foo/bar/baz', 'foo/bar/baz', '/foo/bar/baz']
store = self.get_store()
for filename in filenames:
store.write(filename, 'Hello, world!')
self.assertEqual(store.read(filename), 'Hello, world!')
store.delete(filename)
with self.assertRaises(FileNotFoundError):
store.read(filename)
def test_list(self):
store = self.get_store()
store.write('foo.txt', 'Hello, world!')
store.write('bar.txt', 'Hello, world!')
store.write('baz.txt', 'Hello, world!')
file_names = store.list('')
file_names.sort()
self.assertEqual(file_names, ['bar.txt', 'baz.txt', 'foo.txt'])
store.delete('foo.txt')
store.delete('bar.txt')
store.delete('baz.txt')
def test_deep_list(self):
store = self.get_store()
store.write('foo/bar/baz.txt', 'Hello, world!')
store.write('foo/bar/qux.txt', 'Hello, world!')
store.write('foo/bar/quux.txt', 'Hello, world!')
self.assertEqual(store.list(''), ['foo/'])
self.assertEqual(store.list('foo'), ['foo/bar/'])
file_names = store.list('foo/bar')
file_names.sort()
self.assertEqual(
file_names, ['foo/bar/baz.txt', 'foo/bar/quux.txt', 'foo/bar/qux.txt']
)
store.delete('foo/bar/baz.txt')
store.delete('foo/bar/qux.txt')
store.delete('foo/bar/quux.txt')
class TestLocalFileStore(TestCase, _StorageTest):
def setUp(self):
os.makedirs('./_test_files_tmp', exist_ok=True)
self.store = LocalFileStore('./_test_files_tmp')
def tearDown(self):
shutil.rmtree('./_test_files_tmp')
class TestInMemoryFileStore(TestCase, _StorageTest):
def setUp(self):
self.store = InMemoryFileStore()
class TestGoogleCloudFileStore(TestCase, _StorageTest):
def setUp(self):
with patch('google.cloud.storage.Client', _MockGoogleCloudClient):
self.store = GoogleCloudFileStore('dear-liza')
# I would have liked to use cloud-storage-mocker here but the python versions were incompatible :(
# If we write tests for the S3 storage class I would definitely recommend we use moto.
class _MockGoogleCloudClient:
def bucket(self, name: str):
assert name == 'dear-liza'
return _MockGoogleCloudBucket()
@dataclass
class _MockGoogleCloudBucket:
blobs_by_path: Dict[str, _MockGoogleCloudBlob] = field(default_factory=dict)
def blob(self, path: Optional[str] = None) -> _MockGoogleCloudBlob:
return self.blobs_by_path.get(path) or _MockGoogleCloudBlob(self, path)
def list_blobs(self, prefix: Optional[str] = None) -> List[_MockGoogleCloudBlob]:
blobs = list(self.blobs_by_path.values())
if prefix and prefix != '/':
blobs = [blob for blob in blobs if blob.name.startswith(prefix)]
return blobs
@dataclass
class _MockGoogleCloudBlob:
bucket: _MockGoogleCloudBucket
name: str
content: Optional[str | bytes] = None
def open(self, op: str):
if op == 'r':
if self.content is None:
raise FileNotFoundError()
return StringIO(self.content)
if op == 'w':
return _MockGoogleCloudBlobWriter(self)
def delete(self):
del self.bucket.blobs_by_path[self.name]
@dataclass
class _MockGoogleCloudBlobWriter:
blob: _MockGoogleCloudBlob
content: str | bytes = None
def __enter__(self):
return self
def write(self, __b):
assert (
self.content is None
) # We don't support buffered writes in this mock for now, as it is not needed
self.content = __b
def __exit__(self, exc_type, exc_val, exc_tb):
blob = self.blob
blob.content = self.content
blob.bucket.blobs_by_path[blob.name] = blob
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