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#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""Tests for the data range file entry 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_entry
from dfvfs.vfs import data_range_file_system
from tests import test_lib as shared_test_lib
class DataRangeFileEntryTest(shared_test_lib.BaseTestCase):
"""Tests the data range file entry."""
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))
self._file_system = (
data_range_file_system.DataRangeFileSystem(
self._resolver_context))
self._file_system.Open(self._data_range_path_spec)
def tearDown(self):
"""Cleans up the needed objects used throughout the test."""
self._file_system.Close()
self._resolver_context.Empty()
def testInitialize(self):
"""Test the __init__ function."""
file_entry = data_range_file_entry.DataRangeFileEntry(
self._resolver_context, self._file_system,
self._data_range_path_spec)
self.assertIsNotNone(file_entry)
def testSize(self):
"""Test the size property."""
file_entry = data_range_file_entry.DataRangeFileEntry(
self._resolver_context, self._file_system,
self._data_range_path_spec)
self.assertIsNotNone(file_entry)
self.assertEqual(file_entry.size, 0x41)
def testGetFileEntryByPathSpec(self):
"""Test the get a file entry by path specification functionality."""
file_entry = self._file_system.GetFileEntryByPathSpec(
self._data_range_path_spec)
self.assertIsNotNone(file_entry)
def testGetParentFileEntry(self):
"""Tests the GetParentFileEntry function."""
file_entry = self._file_system.GetFileEntryByPathSpec(
self._data_range_path_spec)
self.assertIsNotNone(file_entry)
parent_file_entry = file_entry.GetParentFileEntry()
self.assertIsNone(parent_file_entry)
def testGetStat(self):
"""Tests the GetStat function."""
file_entry = self._file_system.GetFileEntryByPathSpec(
self._data_range_path_spec)
self.assertIsNotNone(file_entry)
stat_object = file_entry.GetStat()
self.assertIsNotNone(stat_object)
self.assertEqual(stat_object.type, stat_object.TYPE_FILE)
self.assertEqual(stat_object.size, 0x41)
def testIsFunctions(self):
"""Test the Is? functions."""
file_entry = self._file_system.GetFileEntryByPathSpec(
self._data_range_path_spec)
self.assertIsNotNone(file_entry)
self.assertTrue(file_entry.IsRoot())
self.assertTrue(file_entry.IsVirtual())
self.assertTrue(file_entry.IsAllocated())
self.assertFalse(file_entry.IsDevice())
self.assertFalse(file_entry.IsDirectory())
self.assertTrue(file_entry.IsFile())
self.assertFalse(file_entry.IsLink())
self.assertFalse(file_entry.IsPipe())
self.assertFalse(file_entry.IsSocket())
def testSubFileEntries(self):
"""Test the sub file entries iteration functionality."""
file_entry = self._file_system.GetFileEntryByPathSpec(
self._data_range_path_spec)
self.assertIsNotNone(file_entry)
self.assertEqual(file_entry.number_of_sub_file_entries, 0)
expected_sub_file_entry_names = []
sub_file_entry_names = []
for sub_file_entry in file_entry.sub_file_entries:
sub_file_entry_names.append(sub_file_entry.name)
self.assertEqual(
len(sub_file_entry_names), len(expected_sub_file_entry_names))
self.assertEqual(
sorted(sub_file_entry_names), expected_sub_file_entry_names)
def testDataStreams(self):
"""Test the data streams functionality."""
file_entry = self._file_system.GetFileEntryByPathSpec(
self._data_range_path_spec)
self.assertIsNotNone(file_entry)
self.assertEqual(file_entry.number_of_data_streams, 1)
data_stream_names = []
for data_stream in file_entry.data_streams:
data_stream_names.append(data_stream.name)
self.assertEqual(data_stream_names, [''])
def testGetDataStream(self):
"""Tests the GetDataStream function."""
file_entry = self._file_system.GetFileEntryByPathSpec(
self._data_range_path_spec)
self.assertIsNotNone(file_entry)
data_stream_name = ''
data_stream = file_entry.GetDataStream(data_stream_name)
self.assertIsNotNone(data_stream)
self.assertEqual(data_stream.name, data_stream_name)
data_stream = file_entry.GetDataStream('bogus')
self.assertIsNone(data_stream)
if __name__ == '__main__':
unittest.main()
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