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#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""Tests for the data range file system implementation."""
from __future__ import unicode_literals
import unittest
from dfvfs.path import data_range_path_spec
from dfvfs.path import os_path_spec
from dfvfs.resolver import context
from dfvfs.vfs import data_range_file_system
from tests import test_lib as shared_test_lib
class DataRangeFileSystemTest(shared_test_lib.BaseTestCase):
"""Tests the data range file system."""
def setUp(self):
"""Sets up the needed objects used throughout the test."""
self._resolver_context = context.Context()
test_file = self._GetTestFilePath(['syslog'])
self._SkipIfPathNotExists(test_file)
path_spec = os_path_spec.OSPathSpec(location=test_file)
self._data_range_path_spec = (
data_range_path_spec.DataRangePathSpec(
range_offset=0x1c0, range_size=0x41, parent=path_spec))
def tearDown(self):
"""Cleans up the needed objects used throughout the test."""
self._resolver_context.Empty()
def testOpenAndClose(self):
"""Test the open and close functionality."""
file_system = data_range_file_system.DataRangeFileSystem(
self._resolver_context)
self.assertIsNotNone(file_system)
file_system.Open(self._data_range_path_spec)
file_system.Close()
def testFileEntryExistsByPathSpec(self):
"""Test the file entry exists by path specification functionality."""
file_system = data_range_file_system.DataRangeFileSystem(
self._resolver_context)
self.assertIsNotNone(file_system)
file_system.Open(self._data_range_path_spec)
self.assertTrue(file_system.FileEntryExistsByPathSpec(
self._data_range_path_spec))
file_system.Close()
def testGetFileEntryByPathSpec(self):
"""Tests the GetFileEntryByPathSpec function."""
file_system = data_range_file_system.DataRangeFileSystem(
self._resolver_context)
self.assertIsNotNone(file_system)
file_system.Open(self._data_range_path_spec)
file_entry = file_system.GetFileEntryByPathSpec(
self._data_range_path_spec)
self.assertIsNotNone(file_entry)
self.assertEqual(file_entry.name, '')
file_system.Close()
def testGetRootFileEntry(self):
"""Test the get root file entry functionality."""
file_system = data_range_file_system.DataRangeFileSystem(
self._resolver_context)
self.assertIsNotNone(file_system)
file_system.Open(self._data_range_path_spec)
file_entry = file_system.GetRootFileEntry()
self.assertIsNotNone(file_entry)
self.assertEqual(file_entry.name, '')
file_system.Close()
if __name__ == '__main__':
unittest.main()
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