def test_is_locked(self):
"""Tests the is_locked function."""
if not unittest.source:
raise unittest.SkipTest("missing source")
bde_volume = pybde.volume()
bde_volume.open(unittest.source)
result = bde_volume.is_locked()
self.assertTrue(result)
bde_volume.close()
if unittest.password or unittest.recovery_password:
bde_volume = pybde.volume()
if unittest.password:
bde_volume.set_password(unittest.password)
if unittest.recovery_password:
bde_volume.set_recovery_password(unittest.recovery_password)
bde_volume.open(unittest.source)
result = bde_volume.is_locked()
self.assertFalse(result)
bde_volume.close()
def test_get_number_of_key_protectors(self):
"""Tests the get_number_of_key_protectors function and number_of_key_protectors property."""
test_source = unittest.source
if not test_source:
raise unittest.SkipTest("missing source")
bde_volume = pybde.volume()
if unittest.password:
bde_volume.set_password(unittest.password)
if unittest.recovery_password:
bde_volume.set_recovery_password(unittest.recovery_password)
if unittest.startup_key:
bde_volume.read_startup_key(unittest.startup_key)
with DataRangeFileObject(test_source, unittest.offset or 0,
None) as file_object:
bde_volume = pybde.volume()
bde_volume.open_file_object(file_object)
number_of_key_protectors = bde_volume.get_number_of_key_protectors(
)
self.assertIsNotNone(number_of_key_protectors)
self.assertIsNotNone(bde_volume.number_of_key_protectors)
bde_volume.close()
def test_get_description(self):
"""Tests the get_description function and description property."""
test_source = unittest.source
if not test_source:
raise unittest.SkipTest("missing source")
bde_volume = pybde.volume()
if unittest.password:
bde_volume.set_password(unittest.password)
if unittest.recovery_password:
bde_volume.set_recovery_password(unittest.recovery_password)
if unittest.startup_key:
bde_volume.read_startup_key(unittest.startup_key)
with DataRangeFileObject(test_source, unittest.offset or 0,
None) as file_object:
bde_volume = pybde.volume()
bde_volume.open_file_object(file_object)
description = bde_volume.get_description()
self.assertIsNotNone(description)
self.assertIsNotNone(bde_volume.description)
bde_volume.close()
def test_is_locked(self):
"""Tests the is_locked function."""
test_source = unittest.source
if not test_source:
raise unittest.SkipTest("missing source")
if unittest.offset:
raise unittest.SkipTest("source defines offset")
bde_volume = pybde.volume()
bde_volume.open(test_source)
result = bde_volume.is_locked()
self.assertTrue(result)
bde_volume.close()
if unittest.password or unittest.recovery_password:
bde_volume = pybde.volume()
if unittest.password:
bde_volume.set_password(unittest.password)
if unittest.recovery_password:
bde_volume.set_recovery_password(unittest.recovery_password)
if unittest.startup_key:
bde_volume.read_startup_key(unittest.startup_key)
bde_volume.open(test_source)
result = bde_volume.is_locked()
self.assertFalse(result)
bde_volume.close()
def test_open(self):
"""Tests the open function."""
if not unittest.source:
return
bde_volume = pybde.volume()
if unittest.password:
bde_volume.set_password(unittest.password)
if unittest.recovery_password:
bde_volume.set_recovery_password(
unittest.recovery_password)
bde_volume.open(unittest.source)
with self.assertRaises(IOError):
bde_volume.open(unittest.source)
bde_volume.close()
with self.assertRaises(TypeError):
bde_volume.open(None)
with self.assertRaises(ValueError):
bde_volume.open(unittest.source, mode="w")
def _Open(self, path_spec, mode='rb'):
"""Opens the file system defined by path specification.
Args:
path_spec (PathSpec): path specification.
mode (Optional[str]): file access mode. The default is 'rb'
read-only binary.
Raises:
AccessError: if the access to open the file was denied.
IOError: if the file system could not be opened.
PathSpecError: if the path specification is incorrect.
ValueError: if the path specification is invalid.
"""
if not path_spec.HasParent():
raise errors.PathSpecError(
u'Unsupported path specification without parent.')
bde_volume = pybde.volume()
file_object = resolver.Resolver.OpenFileObject(
path_spec.parent, resolver_context=self._resolver_context)
try:
bde.BDEVolumeOpen(bde_volume, path_spec, file_object,
resolver.Resolver.key_chain)
except:
file_object.close()
raise
self._bde_volume = bde_volume
self._file_object = file_object
def _Open(self, path_spec=None, mode='rb'):
"""Opens the file system object defined by path specification.
Args:
path_spec: optional path specification (instance of path.PathSpec).
The default is None.
mode: optional file access mode. The default is 'rb' read-only binary.
Raises:
AccessError: if the access to open the file was denied.
IOError: if the file system object could not be opened.
PathSpecError: if the path specification is incorrect.
ValueError: if the path specification is invalid.
"""
if not path_spec.HasParent():
raise errors.PathSpecError(
u'Unsupported path specification without parent.')
bde_volume = pybde.volume()
file_object = resolver.Resolver.OpenFileObject(
path_spec.parent, resolver_context=self._resolver_context)
bde.BdeVolumeOpen(bde_volume, path_spec, file_object,
resolver.Resolver.key_chain)
self._bde_volume = bde_volume
self._file_object = file_object
def pybde_test_multi_open_close_file(filename, mode, password=None, recovery_password=None):
print("Testing multi open close of: {0:s} with access: {1:s}\t".format(filename, get_mode_string(mode)))
result = True
try:
bde_volume = pybde.volume()
if password:
bde_volume.set_password(password)
if recovery_password:
bde_volume.set_recovery_password(recovery_password)
bde_volume.open(filename, mode)
bde_volume.close()
bde_volume.open(filename, mode)
bde_volume.close()
except Exception as exception:
print(str(exception))
result = False
if not result:
print("(FAIL)")
else:
print("(PASS)")
return result
def test_open(self):
"""Tests the open function."""
test_source = unittest.source
if not test_source:
raise unittest.SkipTest("missing source")
if unittest.offset:
raise unittest.SkipTest("source defines offset")
bde_volume = pybde.volume()
if unittest.password:
bde_volume.set_password(unittest.password)
if unittest.recovery_password:
bde_volume.set_recovery_password(unittest.recovery_password)
if unittest.startup_key:
bde_volume.read_startup_key(unittest.startup_key)
bde_volume.open(test_source)
with self.assertRaises(IOError):
bde_volume.open(test_source)
bde_volume.close()
with self.assertRaises(TypeError):
bde_volume.open(None)
with self.assertRaises(ValueError):
bde_volume.open(test_source, mode="w")
def _Open(self, path_spec, mode='rb'):
"""Opens the file system object defined by path specification.
Args:
path_spec: a path specification (instance of path.PathSpec).
mode: optional file access mode. The default is 'rb' read-only binary.
Raises:
AccessError: if the access to open the file was denied.
IOError: if the file system object could not be opened.
PathSpecError: if the path specification is incorrect.
ValueError: if the path specification is invalid.
"""
if not path_spec.HasParent():
raise errors.PathSpecError(
u'Unsupported path specification without parent.')
bde_volume = pybde.volume()
file_object = resolver.Resolver.OpenFileObject(
path_spec.parent, resolver_context=self._resolver_context)
try:
bde.BDEVolumeOpen(
bde_volume, path_spec, file_object, resolver.Resolver.key_chain)
except:
file_object.close()
raise
self._bde_volume = bde_volume
self._file_object = file_object
def test_read_buffer_file_object(self):
"""Tests the read_buffer function on a file-like object."""
if not unittest.source:
return
file_object = open(unittest.source, "rb")
bde_volume = pybde.volume()
if unittest.password:
bde_volume.set_password(unittest.password)
if unittest.recovery_password:
bde_volume.set_recovery_password(unittest.recovery_password)
bde_volume.open_file_object(file_object)
file_size = bde_volume.get_size()
# Test normal read.
data = bde_volume.read_buffer(size=4096)
self.assertIsNotNone(data)
self.assertEqual(len(data), min(file_size, 4096))
bde_volume.close()
def test_open_file_object(self):
"""Tests the open_file_object function."""
if not unittest.source:
return
file_object = open(unittest.source, "rb")
bde_volume = pybde.volume()
if unittest.password:
bde_volume.set_password(unittest.password)
if unittest.recovery_password:
bde_volume.set_recovery_password(unittest.recovery_password)
bde_volume.open_file_object(file_object)
# TODO: fix
# with self.assertRaises(IOError):
# bde_volume.open_file_object(file_object)
bde_volume.close()
# TODO: change IOError into TypeError
with self.assertRaises(IOError):
bde_volume.open_file_object(None)
with self.assertRaises(ValueError):
bde_volume.open_file_object(file_object, mode="w")
def _OpenFileObject(self, path_spec):
"""Opens the file-like object defined by path specification.
Args:
path_spec (PathSpec): path specification.
Returns:
A file-like object.
Raises:
PathSpecError: if the path specification is incorrect.
"""
if not path_spec.HasParent():
raise errors.PathSpecError(
u'Unsupported path specification without parent.')
resolver.Resolver.key_chain.ExtractCredentialsFromPathSpec(path_spec)
file_object = resolver.Resolver.OpenFileObject(
path_spec.parent, resolver_context=self._resolver_context)
bde_volume = pybde.volume()
bde.BDEVolumeOpen(
bde_volume, path_spec, file_object, resolver.Resolver.key_chain)
return bde_volume
def test_open_close(self):
"""Tests the open and close functions."""
if not unittest.source:
return
bde_volume = pybde.volume()
if unittest.password:
bde_volume.set_password(unittest.password)
if unittest.recovery_password:
bde_volume.set_recovery_password(unittest.recovery_password)
# Test open and close.
bde_volume.open(unittest.source)
bde_volume.close()
# Test open and close a second time to validate clean up on close.
bde_volume.open(unittest.source)
bde_volume.close()
file_object = open(unittest.source, "rb")
# Test open_file_object and close.
bde_volume.open_file_object(file_object)
bde_volume.close()
# Test open_file_object and close a second time to validate clean up on close.
bde_volume.open_file_object(file_object)
bde_volume.close()
# Test open_file_object and close and dereferencing file_object.
bde_volume.open_file_object(file_object)
del file_object
bde_volume.close()
def pybde_test_multi_open_close_file(filename,
mode,
password=None,
recovery_password=None):
print("Testing multi open close of: {0:s} with access: {1:s}\t".format(
filename, get_mode_string(mode)))
result = True
try:
bde_volume = pybde.volume()
if password:
bde_volume.set_password(password)
if recovery_password:
bde_volume.set_recovery_password(recovery_password)
bde_volume.open(filename, mode)
bde_volume.close()
bde_volume.open(filename, mode)
bde_volume.close()
except Exception as exception:
print(str(exception))
result = False
if not result:
print("(FAIL)")
else:
print("(PASS)")
return result
def _OpenFileObject(self, path_spec):
"""Opens the file-like object defined by path specification.
Args:
path_spec (PathSpec): path specification.
Returns:
pyvde.volume: BDE volume file-like object.
Raises:
PathSpecError: if the path specification is incorrect.
"""
if not path_spec.HasParent():
raise errors.PathSpecError(
'Unsupported path specification without parent.')
resolver.Resolver.key_chain.ExtractCredentialsFromPathSpec(path_spec)
file_object = resolver.Resolver.OpenFileObject(
path_spec.parent, resolver_context=self._resolver_context)
bde_volume = pybde.volume()
bde.BDEVolumeOpen(
bde_volume, path_spec, file_object, resolver.Resolver.key_chain)
return bde_volume
def test_open_file_object(self):
"""Tests the open_file_object function."""
test_source = unittest.source
if not test_source:
raise unittest.SkipTest("missing source")
if not os.path.isfile(test_source):
raise unittest.SkipTest("source not a regular file")
bde_volume = pybde.volume()
if unittest.password:
bde_volume.set_password(unittest.password)
if unittest.recovery_password:
bde_volume.set_recovery_password(unittest.recovery_password)
if unittest.startup_key:
bde_volume.read_startup_key(unittest.startup_key)
with DataRangeFileObject(test_source, unittest.offset or 0,
None) as file_object:
bde_volume.open_file_object(file_object)
with self.assertRaises(IOError):
bde_volume.open_file_object(file_object)
bde_volume.close()
with self.assertRaises(TypeError):
bde_volume.open_file_object(None)
with self.assertRaises(ValueError):
bde_volume.open_file_object(file_object, mode="w")
def pybde_test_single_open_close_file_object_with_dereference(
filename, mode, password=None, recovery_password=None):
print(("Testing single open close of file-like object with dereference "
"of: {0:s} with access: {1:s}\t").format(filename,
get_mode_string(mode)))
result = True
try:
file_object = open(filename, "rb")
bde_volume = pybde.volume()
if password:
bde_volume.set_password(password)
if recovery_password:
bde_volume.set_recovery_password(recovery_password)
bde_volume.open_file_object(file_object, mode)
del file_object
bde_volume.close()
except Exception as exception:
print(str(exception))
result = False
if not result:
print("(FAIL)")
else:
print("(PASS)")
return result
def test_read_buffer_file_object(self):
"""Tests the read_buffer function on a file-like object."""
test_source = unittest.source
if not test_source:
raise unittest.SkipTest("missing source")
if not os.path.isfile(test_source):
raise unittest.SkipTest("source not a regular file")
bde_volume = pybde.volume()
if unittest.password:
bde_volume.set_password(unittest.password)
if unittest.recovery_password:
bde_volume.set_recovery_password(unittest.recovery_password)
if unittest.startup_key:
bde_volume.read_startup_key(unittest.startup_key)
with DataRangeFileObject(test_source, unittest.offset or 0,
None) as file_object:
bde_volume.open_file_object(file_object)
size = bde_volume.get_size()
# Test normal read.
data = bde_volume.read_buffer(size=4096)
self.assertIsNotNone(data)
self.assertEqual(len(data), min(size, 4096))
bde_volume.close()
def pybde_test_single_open_close_file(
filename, mode, password=None, recovery_password=None):
if not filename:
filename_string = "None"
else:
filename_string = filename
print "Testing single open close of: {0:s} with access: {1:s}\t".format(
filename_string, get_mode_string(mode))
try:
bde_volume = pybde.volume()
if password:
bde_volume.set_password(password)
if recovery_password:
bde_volume.set_recovery_password(recovery_password)
bde_volume.open(filename, mode)
bde_volume.close()
except TypeError, exception:
if (not filename and
exception.message == "pybde_volume_open: unsupported string object type."):
pass
else:
print "(FAIL)"
return False
def pybde_test_single_open_close_file_object_with_dereference(filename, mode, password=None, recovery_password=None):
print(
("Testing single open close of file-like object with dereference " "of: {0:s} with access: {1:s}\t").format(
filename, get_mode_string(mode)
)
)
result = True
try:
file_object = open(filename, "rb")
bde_volume = pybde.volume()
if password:
bde_volume.set_password(password)
if recovery_password:
bde_volume.set_recovery_password(recovery_password)
bde_volume.open_file_object(file_object, mode)
del file_object
bde_volume.close()
except Exception as exception:
print(str(exception))
result = False
if not result:
print("(FAIL)")
else:
print("(PASS)")
return result
def test_get_offset(self):
"""Tests the get_offset function."""
if not unittest.source:
raise unittest.SkipTest("missing source")
bde_volume = pybde.volume()
if unittest.password:
bde_volume.set_password(unittest.password)
if unittest.recovery_password:
bde_volume.set_recovery_password(unittest.recovery_password)
with DataRangeFileObject(unittest.source, unittest.offset or 0,
None) as file_object:
bde_volume = pybde.volume()
bde_volume.open_file_object(file_object)
offset = bde_volume.get_offset()
self.assertIsNotNone(offset)
bde_volume.close()
def pybde_test_single_open_close_file(filename,
mode,
password=None,
recovery_password=None):
if not filename:
filename_string = "None"
else:
filename_string = filename
print("Testing single open close of: {0:s} with access: {1:s}\t".format(
filename_string, get_mode_string(mode)))
result = True
try:
bde_volume = pybde.volume()
if password:
bde_volume.set_password(password)
if recovery_password:
bde_volume.set_recovery_password(recovery_password)
bde_volume.open(filename, mode)
bde_volume.close()
except TypeError as exception:
expected_message = ("{0:s}: unsupported string object type."
).format("pybde_volume_open")
if not filename and str(exception) == expected_message:
pass
else:
print(str(exception))
result = False
except ValueError as exception:
expected_message = (
"{0:s}: unsupported mode: w.").format("pybde_volume_open")
if mode != "w" or str(exception) != expected_message:
print(str(exception))
result = False
except Exception as exception:
print(str(exception))
result = False
if not result:
print("(FAIL)")
else:
print("(PASS)")
return result
def pybde_test_seek_file(filename, password=None, recovery_password=None):
bde_volume = pybde.volume()
if password:
bde_volume.set_password(password)
if recovery_password:
bde_volume.set_recovery_password(recovery_password)
bde_volume.open(filename, "r")
result = pybde_test_seek(bde_volume)
bde_volume.close()
return result
def pybde_test_seek_file(filename, password=None, recovery_password=None):
bde_volume = pybde.volume()
if password:
bde_volume.set_password(password)
if recovery_password:
bde_volume.set_recovery_password(recovery_password)
bde_volume.open(filename, "r")
result = pybde_test_seek(bde_volume)
bde_volume.close()
return result
def test_close(self):
"""Tests the close function."""
if not unittest.source:
raise unittest.SkipTest("missing source")
bde_volume = pybde.volume()
if unittest.password:
bde_volume.set_password(unittest.password)
if unittest.recovery_password:
bde_volume.set_recovery_password(unittest.recovery_password)
with self.assertRaises(IOError):
bde_volume.close()
def test_get_encryption_method(self):
"""Tests the get_encryption_method function and encryption_method property."""
if not unittest.source:
raise unittest.SkipTest("missing source")
bde_volume = pybde.volume()
if unittest.password:
bde_volume.set_password(unittest.password)
if unittest.recovery_password:
bde_volume.set_recovery_password(unittest.recovery_password)
with DataRangeFileObject(unittest.source, unittest.offset or 0,
None) as file_object:
bde_volume = pybde.volume()
bde_volume.open_file_object(file_object)
encryption_method = bde_volume.get_encryption_method()
self.assertIsNotNone(encryption_method)
self.assertIsNotNone(bde_volume.encryption_method)
bde_volume.close()
def pybde_test_single_open_close_file(filename, mode, password=None, recovery_password=None):
if not filename:
filename_string = "None"
else:
filename_string = filename
print("Testing single open close of: {0:s} with access: {1:s}\t".format(filename_string, get_mode_string(mode)))
result = True
try:
bde_volume = pybde.volume()
if password:
bde_volume.set_password(password)
if recovery_password:
bde_volume.set_recovery_password(recovery_password)
bde_volume.open(filename, mode)
bde_volume.close()
except TypeError as exception:
expected_message = ("{0:s}: unsupported string object type.").format("pybde_volume_open")
if not filename and str(exception) == expected_message:
pass
else:
print(str(exception))
result = False
except ValueError as exception:
expected_message = ("{0:s}: unsupported mode: w.").format("pybde_volume_open")
if mode != "w" or str(exception) != expected_message:
print(str(exception))
result = False
except Exception as exception:
print(str(exception))
result = False
if not result:
print("(FAIL)")
else:
print("(PASS)")
return result
def test_read_buffer(self):
"""Tests the read_buffer function."""
if not unittest.source:
return
bde_volume = pybde.volume()
if unittest.password:
bde_volume.set_password(unittest.password)
if unittest.recovery_password:
bde_volume.set_recovery_password(
unittest.recovery_password)
bde_volume.open(unittest.source)
file_size = bde_volume.get_size()
# Test normal read.
data = bde_volume.read_buffer(size=4096)
self.assertIsNotNone(data)
self.assertEqual(len(data), min(file_size, 4096))
if file_size < 4096:
data = bde_volume.read_buffer()
self.assertIsNotNone(data)
self.assertEqual(len(data), file_size)
# Test read beyond file size.
if file_size > 16:
bde_volume.seek_offset(-16, os.SEEK_END)
data = bde_volume.read_buffer(size=4096)
self.assertIsNotNone(data)
self.assertEqual(len(data), 16)
with self.assertRaises(ValueError):
bde_volume.read_buffer(size=-1)
bde_volume.close()
# Test the read without open.
with self.assertRaises(IOError):
bde_volume.read_buffer(size=4096)
def test_open_close(self):
"""Tests the open and close functions."""
test_source = unittest.source
if not test_source:
return
if unittest.offset:
raise unittest.SkipTest("source defines offset")
bde_volume = pybde.volume()
if unittest.password:
bde_volume.set_password(unittest.password)
if unittest.recovery_password:
bde_volume.set_recovery_password(unittest.recovery_password)
if unittest.startup_key:
bde_volume.read_startup_key(unittest.startup_key)
# Test open and close.
bde_volume.open(test_source)
bde_volume.close()
# Test open and close a second time to validate clean up on close.
bde_volume.open(test_source)
bde_volume.close()
if os.path.isfile(test_source):
with open(test_source, "rb") as file_object:
# Test open_file_object and close.
bde_volume.open_file_object(file_object)
bde_volume.close()
# Test open_file_object and close a second time to validate clean up on close.
bde_volume.open_file_object(file_object)
bde_volume.close()
# Test open_file_object and close and dereferencing file_object.
bde_volume.open_file_object(file_object)
del file_object
bde_volume.close()
def _OpenFileObject(self, path_spec):
"""Opens the file-like object defined by path specification.
Args:
path_spec: the path specification (instance of path.PathSpec).
Returns:
A file-like object.
Raises:
PathSpecError: if the path specification is incorrect.
"""
if not path_spec.HasParent():
raise errors.PathSpecError(
u'Unsupported path specification without parent.')
file_object = resolver.Resolver.OpenFileObject(
path_spec.parent, resolver_context=self._resolver_context)
bde_volume = pybde.volume()
bde.BdeVolumeOpen(bde_volume, path_spec, file_object,
resolver.Resolver.key_chain)
return bde_volume
def pybde_test_single_open_close_file_object(
filename, mode, password=None, recovery_password=None):
print ("Testing single open close of file-like object of: {0:s} with access: "
"{1:s}\t").format(filename, get_mode_string(mode))
try:
file_object = open(filename, mode)
bde_volume = pybde.volume()
if password:
bde_volume.set_password(password)
if recovery_password:
bde_volume.set_recovery_password(recovery_password)
bde_volume.open_file_object(file_object, mode)
bde_volume.close()
except:
print "(FAIL)"
return False
print "(PASS)"
return True
def pybde_test_seek_file_no_open(
filename, password=None, recovery_password=None):
print("Testing seek of offset without open:\n")
bde_volume = pybde.volume()
if password:
bde_volume.set_password(password)
if recovery_password:
bde_volume.set_recovery_password(recovery_password)
result = False
try:
bde_volume.seek(0, os.SEEK_SET)
except Exception as exception:
print(str(exception))
result = True
if not result:
print("(FAIL)")
else:
print("(PASS)")
return result
def pybde_test_multi_open_close_file(
filename, mode, password=None, recovery_password=None):
print "Testing multi open close of: {0:s} with access: {1:s}\t".format(
filename, get_mode_string(mode))
try:
bde_volume = pybde.volume()
if password:
bde_volume.set_password(password)
if recovery_password:
bde_volume.set_recovery_password(recovery_password)
bde_volume.open(filename, mode)
bde_volume.close()
bde_volume.open(filename, mode)
bde_volume.close()
except:
print "(FAIL)"
return False
print "(PASS)"
return True
def pybde_test_seek_file_no_open(filename,
password=None,
recovery_password=None):
print("Testing seek of offset without open:\n")
bde_volume = pybde.volume()
if password:
bde_volume.set_password(password)
if recovery_password:
bde_volume.set_recovery_password(recovery_password)
result = False
try:
bde_volume.seek(0, os.SEEK_SET)
except Exception as exception:
print(str(exception))
result = True
if not result:
print("(FAIL)")
else:
print("(PASS)")
return result
def test_seek_offset(self):
"""Tests the seek_offset function."""
test_source = unittest.source
if not test_source:
raise unittest.SkipTest("missing source")
if unittest.offset:
raise unittest.SkipTest("source defines offset")
bde_volume = pybde.volume()
if unittest.password:
bde_volume.set_password(unittest.password)
if unittest.recovery_password:
bde_volume.set_recovery_password(unittest.recovery_password)
if unittest.startup_key:
bde_volume.read_startup_key(unittest.startup_key)
bde_volume.open(test_source)
size = bde_volume.get_size()
bde_volume.seek_offset(16, os.SEEK_SET)
offset = bde_volume.get_offset()
self.assertEqual(offset, 16)
bde_volume.seek_offset(16, os.SEEK_CUR)
offset = bde_volume.get_offset()
self.assertEqual(offset, 32)
bde_volume.seek_offset(-16, os.SEEK_CUR)
offset = bde_volume.get_offset()
self.assertEqual(offset, 16)
if size > 16:
bde_volume.seek_offset(-16, os.SEEK_END)
offset = bde_volume.get_offset()
self.assertEqual(offset, size - 16)
bde_volume.seek_offset(16, os.SEEK_END)
offset = bde_volume.get_offset()
self.assertEqual(offset, size + 16)
# TODO: change IOError into ValueError
with self.assertRaises(IOError):
bde_volume.seek_offset(-1, os.SEEK_SET)
# TODO: change IOError into ValueError
with self.assertRaises(IOError):
bde_volume.seek_offset(-32 - size, os.SEEK_CUR)
# TODO: change IOError into ValueError
with self.assertRaises(IOError):
bde_volume.seek_offset(-32 - size, os.SEEK_END)
# TODO: change IOError into ValueError
with self.assertRaises(IOError):
bde_volume.seek_offset(0, -1)
bde_volume.close()
# Test the seek without open.
with self.assertRaises(IOError):
bde_volume.seek_offset(16, os.SEEK_SET)
def test_read_buffer_at_offset(self):
"""Tests the read_buffer_at_offset function."""
test_source = unittest.source
if not test_source:
raise unittest.SkipTest("missing source")
if unittest.offset:
raise unittest.SkipTest("source defines offset")
bde_volume = pybde.volume()
if unittest.password:
bde_volume.set_password(unittest.password)
if unittest.recovery_password:
bde_volume.set_recovery_password(unittest.recovery_password)
if unittest.startup_key:
bde_volume.read_startup_key(unittest.startup_key)
bde_volume.open(test_source)
size = bde_volume.get_size()
# Test normal read.
data = bde_volume.read_buffer_at_offset(4096, 0)
self.assertIsNotNone(data)
self.assertEqual(len(data), min(size, 4096))
if size > 8:
# Read buffer on size boundary.
data = bde_volume.read_buffer_at_offset(4096, size - 8)
self.assertIsNotNone(data)
self.assertEqual(len(data), 8)
# Read buffer beyond size boundary.
data = bde_volume.read_buffer_at_offset(4096, size + 8)
self.assertIsNotNone(data)
self.assertEqual(len(data), 0)
# Stress test read buffer.
for _ in range(1024):
random_number = random.random()
media_offset = int(random_number * size)
read_size = int(random_number * 4096)
data = bde_volume.read_buffer_at_offset(read_size, media_offset)
self.assertIsNotNone(data)
remaining_size = size - media_offset
data_size = len(data)
if read_size > remaining_size:
read_size = remaining_size
self.assertEqual(data_size, read_size)
remaining_size -= data_size
if not remaining_size:
bde_volume.seek_offset(0, os.SEEK_SET)
with self.assertRaises(ValueError):
bde_volume.read_buffer_at_offset(-1, 0)
with self.assertRaises(ValueError):
bde_volume.read_buffer_at_offset(4096, -1)
bde_volume.close()
# Test the read without open.
with self.assertRaises(IOError):
bde_volume.read_buffer_at_offset(4096, 0)
def test_read_buffer(self):
"""Tests the read_buffer function."""
test_source = unittest.source
if not test_source:
raise unittest.SkipTest("missing source")
if unittest.offset:
raise unittest.SkipTest("source defines offset")
bde_volume = pybde.volume()
if unittest.password:
bde_volume.set_password(unittest.password)
if unittest.recovery_password:
bde_volume.set_recovery_password(unittest.recovery_password)
if unittest.startup_key:
bde_volume.read_startup_key(unittest.startup_key)
bde_volume.open(test_source)
size = bde_volume.get_size()
if size < 4096:
# Test read without maximum size.
bde_volume.seek_offset(0, os.SEEK_SET)
data = bde_volume.read_buffer()
self.assertIsNotNone(data)
self.assertEqual(len(data), size)
# Test read with maximum size.
bde_volume.seek_offset(0, os.SEEK_SET)
data = bde_volume.read_buffer(size=4096)
self.assertIsNotNone(data)
self.assertEqual(len(data), min(size, 4096))
if size > 8:
bde_volume.seek_offset(-8, os.SEEK_END)
# Read buffer on size boundary.
data = bde_volume.read_buffer(size=4096)
self.assertIsNotNone(data)
self.assertEqual(len(data), 8)
# Read buffer beyond size boundary.
data = bde_volume.read_buffer(size=4096)
self.assertIsNotNone(data)
self.assertEqual(len(data), 0)
# Stress test read buffer.
bde_volume.seek_offset(0, os.SEEK_SET)
remaining_size = size
for _ in range(1024):
read_size = int(random.random() * 4096)
data = bde_volume.read_buffer(size=read_size)
self.assertIsNotNone(data)
data_size = len(data)
if read_size > remaining_size:
read_size = remaining_size
self.assertEqual(data_size, read_size)
remaining_size -= data_size
if not remaining_size:
bde_volume.seek_offset(0, os.SEEK_SET)
remaining_size = size
with self.assertRaises(ValueError):
bde_volume.read_buffer(size=-1)
bde_volume.close()
# Test the read without open.
with self.assertRaises(IOError):
bde_volume.read_buffer(size=4096)
def test_close(self):
"""Tests the close function."""
if not unittest.source:
return
bde_volume = pybde.volume()
def test_signal_abort(self):
"""Tests the signal_abort function."""
bde_volume = pybde.volume()
bde_volume.signal_abort()