# Copyright (c) 2012-2013 Red Hat, Inc. # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or # implied. # See the License for the specific language governing permissions and # limitations under the License. """ Tests for gluster.swift.obj.diskfile """ import os import stat import errno import unittest import tempfile import shutil import mock from mock import patch from hashlib import md5 from swift.common.utils import normalize_timestamp from swift.common.exceptions import DiskFileNotExist, DiskFileError, \ DiskFileNoSpace from gluster.swift.common.exceptions import GlusterFileSystemOSError import gluster.swift.common.utils import gluster.swift.obj.diskfile from gluster.swift.obj.diskfile import DiskFile from gluster.swift.common.utils import DEFAULT_UID, DEFAULT_GID, X_TYPE, \ X_OBJECT_TYPE, DIR_OBJECT from gluster.swift.common.fs_utils import Fake_file from test.unit.common.test_utils import _initxattr, _destroyxattr from test.unit import FakeLogger _metadata = {} def _mock_read_metadata(filename): global _metadata if filename in _metadata: md = _metadata[filename] else: md = {} return md def _mock_write_metadata(filename, metadata): global _metadata _metadata[filename] = metadata def _mock_clear_metadata(): global _metadata _metadata = {} class MockException(Exception): pass def _mock_rmobjdir(p): raise MockException("gluster.swift.obj.diskfile.rmobjdir() called") def _mock_do_fsync(fd): return class MockRenamerCalled(Exception): pass def _mock_renamer(a, b): raise MockRenamerCalled() class TestDiskFile(unittest.TestCase): """ Tests for gluster.swift.obj.diskfile """ def setUp(self): self.lg = FakeLogger() _initxattr() _mock_clear_metadata() self._saved_df_wm = gluster.swift.obj.diskfile.write_metadata self._saved_df_rm = gluster.swift.obj.diskfile.read_metadata gluster.swift.obj.diskfile.write_metadata = _mock_write_metadata gluster.swift.obj.diskfile.read_metadata = _mock_read_metadata self._saved_ut_wm = gluster.swift.common.utils.write_metadata self._saved_ut_rm = gluster.swift.common.utils.read_metadata gluster.swift.common.utils.write_metadata = _mock_write_metadata gluster.swift.common.utils.read_metadata = _mock_read_metadata self._saved_do_fsync = gluster.swift.obj.diskfile.do_fsync gluster.swift.obj.diskfile.do_fsync = _mock_do_fsync self.td = tempfile.mkdtemp() def tearDown(self): self.lg = None _destroyxattr() gluster.swift.obj.diskfile.write_metadata = self._saved_df_wm gluster.swift.obj.diskfile.read_metadata = self._saved_df_rm gluster.swift.common.utils.write_metadata = self._saved_ut_wm gluster.swift.common.utils.read_metadata = self._saved_ut_rm gluster.swift.obj.diskfile.do_fsync = self._saved_do_fsync shutil.rmtree(self.td) def _get_diskfile(self, d, p, a, c, o, **kwargs): return DiskFile(self.td, d, p, a, c, o, self.lg, **kwargs) def test_constructor_no_slash(self): gdf = self._get_diskfile("vol0", "p57", "ufo47", "bar", "z") assert gdf._obj == "z" assert gdf._obj_path == "" assert gdf.name == "bar" assert gdf.datadir == os.path.join(self.td, "vol0", "bar") assert gdf.device_path == os.path.join(self.td, "vol0") assert gdf._container_path == os.path.join(self.td, "vol0", "bar") assert gdf.disk_chunk_size == 65536 assert gdf.iter_hook is None assert gdf.logger == self.lg assert gdf.uid == DEFAULT_UID assert gdf.gid == DEFAULT_GID assert gdf.metadata == {} assert gdf.meta_file is None assert gdf.data_file is None assert gdf.fp is None assert gdf.iter_etag is None assert not gdf.started_at_0 assert not gdf.read_to_eof assert gdf.quarantined_dir is None assert not gdf.keep_cache assert not gdf._is_dir def test_constructor_leadtrail_slash(self): gdf = self._get_diskfile("vol0", "p57", "ufo47", "bar", "/b/a/z/") assert gdf._obj == "z" assert gdf._obj_path == os.path.join("b", "a") assert gdf.name == os.path.join("bar", "b", "a") assert gdf.datadir == os.path.join(self.td, "vol0", "bar", "b", "a") assert gdf.device_path == os.path.join(self.td, "vol0") def test_constructor_no_metadata(self): the_path = os.path.join(self.td, "vol0", "bar") the_file = os.path.join(the_path, "z") os.makedirs(the_path) with open(the_file, "wb") as fd: fd.write("1234") stats = os.stat(the_file) ts = normalize_timestamp(stats.st_ctime) etag = md5() etag.update("1234") etag = etag.hexdigest() exp_md = { 'Content-Length': 4, 'ETag': etag, 'X-Timestamp': ts, 'Content-Type': 'application/octet-stream'} gdf = self._get_diskfile("vol0", "p57", "ufo47", "bar", "z") assert gdf._obj == "z" assert gdf.data_file == the_file assert not gdf._is_dir assert gdf.fp is None assert gdf.metadata == exp_md def test_constructor_existing_metadata(self): the_path = os.path.join(self.td, "vol0", "bar") the_file = os.path.join(the_path, "z") os.makedirs(the_path) with open(the_file, "wb") as fd: fd.write("1234") ini_md = { 'X-Type': 'Object', 'X-Object-Type': 'file', 'Content-Length': 5, 'ETag': 'etag', 'X-Timestamp': 'ts', 'Content-Type': 'application/loctet-stream'} _metadata[the_file] = ini_md exp_md = ini_md.copy() del exp_md['X-Type'] del exp_md['X-Object-Type'] gdf = self._get_diskfile("vol0", "p57", "ufo47", "bar", "z") assert gdf._obj == "z" assert gdf.data_file == the_file assert not gdf._is_dir assert gdf.fp is None assert gdf.metadata == exp_md def test_constructor_invalid_existing_metadata(self): the_path = os.path.join(self.td, "vol0", "bar") the_file = os.path.join(the_path, "z") inv_md = { 'Content-Length': 5, 'ETag': 'etag', 'X-Timestamp': 'ts', 'Content-Type': 'application/loctet-stream'} _metadata[the_file] = inv_md os.makedirs(the_path) with open(the_file, "wb") as fd: fd.write("1234") gdf = self._get_diskfile("vol0", "p57", "ufo47", "bar", "z") assert gdf._obj == "z" assert gdf.data_file == the_file assert not gdf._is_dir assert gdf.fp is None assert gdf.metadata != inv_md def test_constructor_isdir(self): the_path = os.path.join(self.td, "vol0", "bar") the_dir = os.path.join(the_path, "d") os.makedirs(the_dir) ini_md = { 'X-Type': 'Object', 'X-Object-Type': 'dir', 'Content-Length': 5, 'ETag': 'etag', 'X-Timestamp': 'ts', 'Content-Type': 'application/loctet-stream'} _metadata[the_dir] = ini_md exp_md = ini_md.copy() del exp_md['X-Type'] del exp_md['X-Object-Type'] gdf = self._get_diskfile("vol0", "p57", "ufo47", "bar", "d", keep_data_fp=True) assert gdf._obj == "d" assert gdf.data_file == the_dir assert gdf._is_dir assert gdf.metadata == exp_md def test_constructor_keep_data_fp(self): the_path = os.path.join(self.td, "vol0", "bar") the_file = os.path.join(the_path, "z") os.makedirs(the_path) with open(the_file, "wb") as fd: fd.write("1234") gdf = self._get_diskfile("vol0", "p57", "ufo47", "bar", "z", keep_data_fp=True) assert gdf._obj == "z" assert gdf.data_file == the_file assert not gdf._is_dir assert gdf.fp is not None def test_constructor_chunk_size(self): gdf = self._get_diskfile("vol0", "p57", "ufo47", "bar", "z", disk_chunk_size=8192) assert gdf.disk_chunk_size == 8192 def test_constructor_iter_hook(self): gdf = self._get_diskfile("vol0", "p57", "ufo47", "bar", "z", iter_hook='hook') assert gdf.iter_hook == 'hook' def test_close_no_open_fp(self): gdf = self._get_diskfile("vol0", "p57", "ufo47", "bar", "z", keep_data_fp=True) gdf._is_dir = False self.called = False def our_do_close(fp): self.called = True with mock.patch("gluster.swift.obj.diskfile.do_close", our_do_close): gdf.close() assert not self.called assert gdf.fp is None def test_all_dir_object(self): the_cont = os.path.join(self.td, "vol0", "bar") the_dir = "dir" self.called = False os.makedirs(os.path.join(the_cont, the_dir)) gdf = self._get_diskfile("vol0", "p57", "ufo47", "bar", "dir", keep_data_fp=True) ret = isinstance(gdf.fp, Fake_file) self.assertTrue(ret) # Get a File descriptor fd = gdf.fp # This expected to call Fake_file interfaces ret = fd.tell() self.assertEqual(ret , 0) ret = fd.read(1) self.assertEqual(ret , 0) ret = fd.fileno() self.assertEqual(ret, -1) ret = fd.close() self.assertFalse(self.called) def test_close_file_object(self): the_cont = os.path.join(self.td, "vol0", "bar") the_file = os.path.join(the_cont, "z") self.called = False os.makedirs(the_cont) with open(the_file, "wb") as fd: fd.write("1234") gdf = self._get_diskfile("vol0", "p57", "ufo47", "bar", "z", keep_data_fp=True) def our_do_close(fp): self.called = True with mock.patch("gluster.swift.obj.diskfile.do_close", our_do_close): gdf.close() assert self.called def test_is_deleted(self): gdf = self._get_diskfile("vol0", "p57", "ufo47", "bar", "z") assert gdf.is_deleted() gdf.data_file = os.path.join(self.td, "bar") assert not gdf.is_deleted() def test_create_dir_object_no_md(self): the_cont = os.path.join(self.td, "vol0", "bar") the_dir = "dir" os.makedirs(the_cont) gdf = self._get_diskfile("vol0", "p57", "ufo47", "bar", os.path.join(the_dir, "z")) # Not created, dir object path is different, just checking assert gdf._obj == "z" gdf._create_dir_object(the_dir) full_dir_path = os.path.join(the_cont, the_dir) assert os.path.isdir(full_dir_path) assert full_dir_path not in _metadata def test_create_dir_object_with_md(self): the_cont = os.path.join(self.td, "vol0", "bar") the_dir = "dir" os.makedirs(the_cont) gdf = self._get_diskfile("vol0", "p57", "ufo47", "bar", os.path.join(the_dir, "z")) # Not created, dir object path is different, just checking assert gdf._obj == "z" dir_md = {'Content-Type': 'application/directory', X_OBJECT_TYPE: DIR_OBJECT} gdf._create_dir_object(the_dir, dir_md) full_dir_path = os.path.join(the_cont, the_dir) assert os.path.isdir(full_dir_path) assert full_dir_path in _metadata def test_create_dir_object_exists(self): the_path = os.path.join(self.td, "vol0", "bar") the_dir = os.path.join(the_path, "dir") os.makedirs(the_path) with open(the_dir, "wb") as fd: fd.write("1234") gdf = self._get_diskfile("vol0", "p57", "ufo47", "bar", "dir/z") # Not created, dir object path is different, just checking assert gdf._obj == "z" def _mock_do_chown(p, u, g): assert u == DEFAULT_UID assert g == DEFAULT_GID dc = gluster.swift.obj.diskfile.do_chown gluster.swift.obj.diskfile.do_chown = _mock_do_chown self.assertRaises( DiskFileError, gdf._create_dir_object, the_dir) gluster.swift.obj.diskfile.do_chown = dc self.assertFalse(os.path.isdir(the_dir)) self.assertFalse(the_dir in _metadata) def test_create_dir_object_do_stat_failure(self): the_path = os.path.join(self.td, "vol0", "bar") the_dir = os.path.join(the_path, "dir") os.makedirs(the_path) with open(the_dir, "wb") as fd: fd.write("1234") gdf = self._get_diskfile("vol0", "p57", "ufo47", "bar", "dir/z") # Not created, dir object path is different, just checking assert gdf._obj == "z" def _mock_do_chown(p, u, g): assert u == DEFAULT_UID assert g == DEFAULT_GID dc = gluster.swift.obj.diskfile.do_chown gluster.swift.obj.diskfile.do_chown = _mock_do_chown self.assertRaises( DiskFileError, gdf._create_dir_object, the_dir) gluster.swift.obj.diskfile.do_chown = dc self.assertFalse(os.path.isdir(the_dir)) self.assertFalse(the_dir in _metadata) def test_put_metadata(self): the_path = os.path.join(self.td, "vol0", "bar") the_dir = os.path.join(the_path, "z") os.makedirs(the_dir) gdf = self._get_diskfile("vol0", "p57", "ufo47", "bar", "z") md = {'Content-Type': 'application/octet-stream', 'a': 'b'} gdf.put_metadata(md.copy()) assert gdf.metadata == md, "gdf.metadata = %r, md = %r" % ( gdf.metadata, md) assert _metadata[the_dir] == md def test_put_w_tombstone(self): gdf = self._get_diskfile("vol0", "p57", "ufo47", "bar", "z") assert gdf.metadata == {} gdf.put_metadata({'x': '1'}, tombstone=True) assert gdf.metadata == {} def test_put_w_meta_file(self): the_path = os.path.join(self.td, "vol0", "bar") the_file = os.path.join(the_path, "z") os.makedirs(the_path) with open(the_file, "wb") as fd: fd.write("1234") gdf = self._get_diskfile("vol0", "p57", "ufo47", "bar", "z") newmd = gdf.metadata.copy() newmd['X-Object-Meta-test'] = '1234' gdf.put_metadata(newmd) assert gdf.metadata == newmd assert _metadata[the_file] == newmd def test_put_w_meta_file_no_content_type(self): the_path = os.path.join(self.td, "vol0", "bar") the_file = os.path.join(the_path, "z") os.makedirs(the_path) with open(the_file, "wb") as fd: fd.write("1234") gdf = self._get_diskfile("vol0", "p57", "ufo47", "bar", "z") newmd = gdf.metadata.copy() newmd['Content-Type'] = '' newmd['X-Object-Meta-test'] = '1234' gdf.put_metadata(newmd) assert gdf.metadata == newmd assert _metadata[the_file] == newmd def test_put_w_meta_dir(self): the_path = os.path.join(self.td, "vol0", "bar") the_dir = os.path.join(the_path, "dir") os.makedirs(the_dir) gdf = self._get_diskfile("vol0", "p57", "ufo47", "bar", "dir") newmd = gdf.metadata.copy() newmd['X-Object-Meta-test'] = '1234' gdf.put_metadata(newmd) assert gdf.metadata == newmd assert _metadata[the_dir] == newmd def test_put_w_marker_dir(self): the_path = os.path.join(self.td, "vol0", "bar") the_dir = os.path.join(the_path, "dir") os.makedirs(the_dir) gdf = self._get_diskfile("vol0", "p57", "ufo47", "bar", "dir") newmd = gdf.metadata.copy() newmd['X-Object-Meta-test'] = '1234' gdf.put_metadata(newmd) assert gdf.metadata == newmd assert _metadata[the_dir] == newmd def test_put_w_marker_dir_create(self): the_cont = os.path.join(self.td, "vol0", "bar") the_dir = os.path.join(the_cont, "dir") os.makedirs(the_cont) gdf = self._get_diskfile("vol0", "p57", "ufo47", "bar", "dir") assert gdf.metadata == {} newmd = { 'ETag': 'etag', 'X-Timestamp': 'ts', 'Content-Type': 'application/directory'} with gdf.writer() as dw: dw.put(newmd, extension='.dir') assert gdf.data_file == the_dir for key, val in newmd.items(): assert gdf.metadata[key] == val assert _metadata[the_dir][key] == val assert gdf.metadata[X_OBJECT_TYPE] == DIR_OBJECT assert _metadata[the_dir][X_OBJECT_TYPE] == DIR_OBJECT def test_put_is_dir(self): the_path = os.path.join(self.td, "vol0", "bar") the_dir = os.path.join(the_path, "dir") os.makedirs(the_dir) gdf = self._get_diskfile("vol0", "p57", "ufo47", "bar", "dir") origmd = gdf.metadata.copy() origfmd = _metadata[the_dir] newmd = gdf.metadata.copy() # FIXME: This is a hack to get to the code-path; it is not clear # how this can happen normally. newmd['Content-Type'] = '' newmd['X-Object-Meta-test'] = '1234' with gdf.writer() as dw: try: dw.put(newmd, extension='.data') except DiskFileError: pass else: self.fail("Expected to encounter" " 'already-exists-as-dir' exception") assert gdf.metadata == origmd assert _metadata[the_dir] == origfmd def test_put(self): the_cont = os.path.join(self.td, "vol0", "bar") os.makedirs(the_cont) gdf = self._get_diskfile("vol0", "p57", "ufo47", "bar", "z") assert gdf._obj == "z" assert gdf._obj_path == "" assert gdf.name == "bar" assert gdf.datadir == the_cont assert gdf.data_file is None body = '1234\n' etag = md5() etag.update(body) etag = etag.hexdigest() metadata = { 'X-Timestamp': '1234', 'Content-Type': 'file', 'ETag': etag, 'Content-Length': '5', } with gdf.writer() as dw: assert dw.tmppath is not None tmppath = dw.tmppath dw.write(body) dw.put(metadata) assert gdf.data_file == os.path.join(self.td, "vol0", "bar", "z") assert os.path.exists(gdf.data_file) assert not os.path.exists(tmppath) def test_put_ENOSPC(self): the_cont = os.path.join(self.td, "vol0", "bar") os.makedirs(the_cont) gdf = self._get_diskfile("vol0", "p57", "ufo47", "bar", "z") assert gdf._obj == "z" assert gdf._obj_path == "" assert gdf.name == "bar" assert gdf.datadir == the_cont assert gdf.data_file is None body = '1234\n' etag = md5() etag.update(body) etag = etag.hexdigest() metadata = { 'X-Timestamp': '1234', 'Content-Type': 'file', 'ETag': etag, 'Content-Length': '5', } def mock_open(*args, **kwargs): raise OSError(errno.ENOSPC, os.strerror(errno.ENOSPC)) with mock.patch("os.open", mock_open): try: with gdf.writer() as dw: assert dw.tmppath is not None dw.write(body) dw.put(metadata) except DiskFileNoSpace: pass else: self.fail("Expected exception DiskFileNoSpace") def test_put_rename_ENOENT(self): the_cont = os.path.join(self.td, "vol0", "bar") os.makedirs(the_cont) gdf = self._get_diskfile("vol0", "p57", "ufo47", "bar", "z") assert gdf._obj == "z" assert gdf._obj_path == "" assert gdf.name == "bar" assert gdf.datadir == the_cont assert gdf.data_file is None body = '1234\n' etag = md5() etag.update(body) etag = etag.hexdigest() metadata = { 'X-Timestamp': '1234', 'Content-Type': 'file', 'ETag': etag, 'Content-Length': '5', } def mock_sleep(*args, **kwargs): # Return without sleep, no need to dely unit tests return def mock_rename(*args, **kwargs): raise OSError(errno.ENOENT, os.strerror(errno.ENOENT)) with mock.patch("gluster.swift.obj.diskfile.sleep", mock_sleep): with mock.patch("os.rename", mock_rename): try: with gdf.writer() as dw: assert dw.tmppath is not None dw.write(body) dw.put(metadata) except GlusterFileSystemOSError: pass else: self.fail("Expected exception DiskFileError") def test_put_obj_path(self): the_obj_path = os.path.join("b", "a") the_file = os.path.join(the_obj_path, "z") gdf = self._get_diskfile("vol0", "p57", "ufo47", "bar", the_file) assert gdf._obj == "z" assert gdf._obj_path == the_obj_path assert gdf.name == os.path.join("bar", "b", "a") assert gdf.datadir == os.path.join(self.td, "vol0", "bar", "b", "a") assert gdf.data_file is None body = '1234\n' etag = md5() etag.update(body) etag = etag.hexdigest() metadata = { 'X-Timestamp': '1234', 'Content-Type': 'file', 'ETag': etag, 'Content-Length': '5', } with gdf.writer() as dw: assert dw.tmppath is not None tmppath = dw.tmppath dw.write(body) dw.put(metadata) assert gdf.data_file == os.path.join( self.td, "vol0", "bar", "b", "a", "z") assert os.path.exists(gdf.data_file) assert not os.path.exists(tmppath) def test_unlinkold_no_metadata(self): gdf = self._get_diskfile("vol0", "p57", "ufo47", "bar", "z") assert gdf.metadata == {} _saved_rmobjdir = gluster.swift.obj.diskfile.rmobjdir gluster.swift.obj.diskfile.rmobjdir = _mock_rmobjdir try: gdf.unlinkold(None) except MockException as exp: self.fail(str(exp)) finally: gluster.swift.obj.diskfile.rmobjdir = _saved_rmobjdir def test_unlinkold_same_timestamp(self): gdf = self._get_diskfile("vol0", "p57", "ufo47", "bar", "z") assert gdf.metadata == {} gdf.metadata['X-Timestamp'] = 1 _saved_rmobjdir = gluster.swift.obj.diskfile.rmobjdir gluster.swift.obj.diskfile.rmobjdir = _mock_rmobjdir try: gdf.unlinkold(1) except MockException as exp: self.fail(str(exp)) finally: gluster.swift.obj.diskfile.rmobjdir = _saved_rmobjdir def test_unlinkold_file(self): the_path = os.path.join(self.td, "vol0", "bar") the_file = os.path.join(the_path, "z") os.makedirs(the_path) with open(the_file, "wb") as fd: fd.write("1234") gdf = self._get_diskfile("vol0", "p57", "ufo47", "bar", "z") assert gdf._obj == "z" assert gdf.data_file == the_file assert not gdf._is_dir later = float(gdf.metadata['X-Timestamp']) + 1 gdf.unlinkold(normalize_timestamp(later)) assert os.path.isdir(gdf.datadir) assert not os.path.exists(os.path.join(gdf.datadir, gdf._obj)) def test_unlinkold_file_not_found(self): the_path = os.path.join(self.td, "vol0", "bar") the_file = os.path.join(the_path, "z") os.makedirs(the_path) with open(the_file, "wb") as fd: fd.write("1234") gdf = self._get_diskfile("vol0", "p57", "ufo47", "bar", "z") assert gdf._obj == "z" assert gdf.data_file == the_file assert not gdf._is_dir # Handle the case the file is not in the directory listing. os.unlink(the_file) later = float(gdf.metadata['X-Timestamp']) + 1 gdf.unlinkold(normalize_timestamp(later)) assert os.path.isdir(gdf.datadir) assert not os.path.exists(os.path.join(gdf.datadir, gdf._obj)) def test_unlinkold_file_unlink_error(self): the_path = os.path.join(self.td, "vol0", "bar") the_file = os.path.join(the_path, "z") os.makedirs(the_path) with open(the_file, "wb") as fd: fd.write("1234") gdf = self._get_diskfile("vol0", "p57", "ufo47", "bar", "z") assert gdf._obj == "z" assert gdf.data_file == the_file assert not gdf._is_dir later = float(gdf.metadata['X-Timestamp']) + 1 def _mock_os_unlink_eacces_err(f): raise OSError(errno.EACCES, os.strerror(errno.EACCES)) stats = os.stat(the_path) try: os.chmod(the_path, stats.st_mode & (~stat.S_IWUSR)) # Handle the case os_unlink() raises an OSError with patch("os.unlink", _mock_os_unlink_eacces_err): try: gdf.unlinkold(normalize_timestamp(later)) except OSError as e: assert e.errno == errno.EACCES else: self.fail("Excepted an OSError when unlinking file") finally: os.chmod(the_path, stats.st_mode) assert os.path.isdir(gdf.datadir) assert os.path.exists(os.path.join(gdf.datadir, gdf._obj)) def test_unlinkold_is_dir(self): the_path = os.path.join(self.td, "vol0", "bar") the_dir = os.path.join(the_path, "d") os.makedirs(the_dir) gdf = self._get_diskfile("vol0", "p57", "ufo47", "bar", "d", keep_data_fp=True) assert gdf.data_file == the_dir assert gdf._is_dir later = float(gdf.metadata['X-Timestamp']) + 1 gdf.unlinkold(normalize_timestamp(later)) assert os.path.isdir(gdf.datadir) assert not os.path.exists(os.path.join(gdf.datadir, gdf._obj)) def test_get_data_file_size(self): the_path = os.path.join(self.td, "vol0", "bar") the_file = os.path.join(the_path, "z") os.makedirs(the_path) with open(the_file, "wb") as fd: fd.write("1234") gdf = self._get_diskfile("vol0", "p57", "ufo47", "bar", "z") assert gdf._obj == "z" assert gdf.data_file == the_file assert not gdf._is_dir assert 4 == gdf.get_data_file_size() def test_get_data_file_size_md_restored(self): the_path = os.path.join(self.td, "vol0", "bar") the_file = os.path.join(the_path, "z") os.makedirs(the_path) with open(the_file, "wb") as fd: fd.write("1234") gdf = self._get_diskfile("vol0", "p57", "ufo47", "bar", "z") assert gdf._obj == "z" assert gdf.data_file == the_file assert not gdf._is_dir assert 4 == gdf.metadata['Content-Length'] gdf.metadata['Content-Length'] = 3 assert 4 == gdf.get_data_file_size() assert 4 == gdf.metadata['Content-Length'] def test_get_data_file_size_dne(self): gdf = self._get_diskfile("vol0", "p57", "ufo47", "bar", "/b/a/z/") try: gdf.get_data_file_size() except DiskFileNotExist: pass else: self.fail("Expected DiskFileNotExist exception") def test_get_data_file_size_dne_os_err(self): the_path = os.path.join(self.td, "vol0", "bar") the_file = os.path.join(the_path, "z") os.makedirs(the_path) with open(the_file, "wb") as fd: fd.write("1234") gdf = self._get_diskfile("vol0", "p57", "ufo47", "bar", "z") assert gdf._obj == "z" assert gdf.data_file == the_file assert not gdf._is_dir gdf.data_file = gdf.data_file + ".dne" try: gdf.get_data_file_size() except DiskFileNotExist: pass else: self.fail("Expected DiskFileNotExist exception") def test_get_data_file_size_os_err(self): the_path = os.path.join(self.td, "vol0", "bar") the_file = os.path.join(the_path, "z") os.makedirs(the_path) with open(the_file, "wb") as fd: fd.write("1234") gdf = self._get_diskfile("vol0", "p57", "ufo47", "bar", "z") assert gdf._obj == "z" assert gdf.data_file == the_file assert not gdf._is_dir stats = os.stat(the_path) try: os.chmod(the_path, 0) def _mock_getsize_eaccess_err(f): raise OSError(errno.EACCES, os.strerror(errno.EACCES)) with patch("os.path.getsize", _mock_getsize_eaccess_err): try: gdf.get_data_file_size() except OSError as err: assert err.errno == errno.EACCES else: self.fail("Expected OSError exception") finally: os.chmod(the_path, stats.st_mode) def test_get_data_file_size_dir(self): the_path = os.path.join(self.td, "vol0", "bar") the_dir = os.path.join(the_path, "d") os.makedirs(the_dir) gdf = self._get_diskfile("vol0", "p57", "ufo47", "bar", "d", keep_data_fp=True) assert gdf._obj == "d" assert gdf.data_file == the_dir assert gdf._is_dir assert 0 == gdf.get_data_file_size() def test_filter_metadata(self): gdf = self._get_diskfile("vol0", "p57", "ufo47", "bar", "z") assert gdf.metadata == {} gdf._filter_metadata() assert gdf.metadata == {} gdf.metadata[X_TYPE] = 'a' gdf.metadata[X_OBJECT_TYPE] = 'b' gdf.metadata['foobar'] = 'c' gdf._filter_metadata() assert X_TYPE not in gdf.metadata assert X_OBJECT_TYPE not in gdf.metadata assert 'foobar' in gdf.metadata def test_writer(self): gdf = self._get_diskfile("vol0", "p57", "ufo47", "bar", "dir/z") saved_tmppath = '' saved_fd = None with gdf.writer() as dw: assert gdf.datadir == os.path.join(self.td, "vol0", "bar", "dir") assert os.path.isdir(gdf.datadir) saved_tmppath = dw.tmppath assert os.path.dirname(saved_tmppath) == gdf.datadir assert os.path.basename(saved_tmppath)[:3] == '.z.' assert os.path.exists(saved_tmppath) dw.write("123") saved_fd = dw.fd # At the end of previous with block a close on fd is called. # Calling os.close on the same fd will raise an OSError # exception and we must catch it. try: os.close(saved_fd) except OSError: pass else: self.fail("Exception expected") assert not os.path.exists(saved_tmppath) def test_writer_err_on_close(self): gdf = self._get_diskfile("vol0", "p57", "ufo47", "bar", "dir/z") saved_tmppath = '' with gdf.writer() as dw: assert gdf.datadir == os.path.join(self.td, "vol0", "bar", "dir") assert os.path.isdir(gdf.datadir) saved_tmppath = dw.tmppath assert os.path.dirname(saved_tmppath) == gdf.datadir assert os.path.basename(saved_tmppath)[:3] == '.z.' assert os.path.exists(saved_tmppath) dw.write("123") # Closing the fd prematurely should not raise any exceptions. os.close(dw.fd) assert not os.path.exists(saved_tmppath) def test_writer_err_on_unlink(self): gdf = self._get_diskfile("vol0", "p57", "ufo47", "bar", "dir/z") saved_tmppath = '' with gdf.writer() as dw: assert gdf.datadir == os.path.join(self.td, "vol0", "bar", "dir") assert os.path.isdir(gdf.datadir) saved_tmppath = dw.tmppath assert os.path.dirname(saved_tmppath) == gdf.datadir assert os.path.basename(saved_tmppath)[:3] == '.z.' assert os.path.exists(saved_tmppath) dw.write("123") os.unlink(saved_tmppath) assert not os.path.exists(saved_tmppath)