Великденски Яйца

Програмиране с Python

Курс във Факултета по Математика и Информатика към СУ

Решение на In-memory файлова система от Иван Тодоров

Обратно към всички решения

Към профила на Иван Тодоров

Резултати

  • 1 точка от тестове
  • 0 бонус точки
  • 1 точка общо
  • 1 успешни тест(а)
  • 17 неуспешни тест(а)

Код

import os
import shutil
class FileSystemError(Exception):
pass
class NodeDoesNotExistError(FileSystemError):
pass
class DestinationNodeExistsError(NodeDoesNotExistError):
pass
class DestinationNodeDoesNotExistError(NodeDoesNotExistError):
pass
class NotEnoughSpaceError(FileSystemError):
pass
class NonExplicitDirectoryDeletionError(FileSystemError):
pass
class NonEmptyDirectoryDeletionError(FileSystemError):
pass
class SourceNodeDoesNotExistError(FileSystemError):
pass
class DestinationNotADirectoryError(FileSystemError):
pass
class GetNode:
def __init__(self, value, is_directory):
self.is_directory = is_directory
self.value = value
if not is_directory:
with open(value) as infile:
self.content = infile.read()
def get_size(start_path='.'):
total_size = 0
for dirpath, dirnames, filenames in os.walk(start_path):
for f in filenames:
fp = os.path.join(dirpath, f)
total_size += os.path.getsize(fp)
return total_size
class FileSystem:
def __init__(self, size):
self.size = size
self.available_size = size - 1
def get_node(self, path):
path = path[1:]
if not os.access(path, os.F_OK):
raise NodeDoesNotExistError
else:
return GetNode(os.path.abspath(path), os.path.isdir(path))
def create(self, path, directory=False, content=''):
path = path[1:]
if directory:
if os.path.exists(path):
raise DestinationNodeExistsError
elif os.path.exists(path[:path.rfind('/')]):
raise DestinationNodeDoesNotExistError
else:
os.mkdir(path)
elif len(content) > self.available_size:
raise NotEnoughSpaceError
else:
if os.path.exists(path):
raise DestinationNodeExistsError
elif os.path.exists(path[:path.rfind('/')]):
raise DestinationNodeDoesNotExistError
else:
with open(path, 'w') as infile:
infile.write(content)
self.available_size = self.available_size - len(content)
def remove(self, path, directory=False, force=True):
path = path[1:]
if os.path.exists == False:
raise NodeDoesNotExistError
elif directory == False and os.path.isdir(path):
raise NonExplicitDirectoryDeletionError
elif os.listdir(path): # differs from zero
if force:
self.available_size += get_size(path)
shutil.rmtree(path)
else:
raise NonEmptyDirectoryDeletionError
else:
self.available_size += os.path.getsize(path)
os.remove(path)
def move(source, destination):
source = source[1:]
destination = destination[1:]
if os.path.exists(source) is False:
raise SourceNodeDoesNotExistError
elif os.path.exists(destination) is False:
raise DestinationNodeDoesNotExistError
elif os.path.isdir(destination) is False:
raise DestinationNotADirectoryError
else:
shutil.move(source, destination)

Лог от изпълнението

EEEEEEE.EEEEEEEEEE
======================================================================
ERROR: test_create_directory (test.TestFileSystem)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "lib/language/python/runner.py", line 65, in thread
    raise TimeoutError
TimeoutError

======================================================================
ERROR: test_create_file (test.TestFileSystem)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "lib/language/python/runner.py", line 65, in thread
    raise TimeoutError
TimeoutError

======================================================================
ERROR: test_hard_link_create (test.TestFileSystem)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "lib/language/python/runner.py", line 65, in thread
    raise TimeoutError
TimeoutError

======================================================================
ERROR: test_hard_link_space_consumption (test.TestFileSystem)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "lib/language/python/runner.py", line 65, in thread
    raise TimeoutError
TimeoutError

======================================================================
ERROR: test_hard_link_to_directory (test.TestFileSystem)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "lib/language/python/runner.py", line 65, in thread
    raise TimeoutError
TimeoutError

======================================================================
ERROR: test_hard_link_to_missing_file (test.TestFileSystem)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "lib/language/python/runner.py", line 65, in thread
    raise TimeoutError
TimeoutError

======================================================================
ERROR: test_link_create (test.TestFileSystem)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "lib/language/python/runner.py", line 65, in thread
    raise TimeoutError
TimeoutError

======================================================================
ERROR: test_mounting (test.TestFileSystem)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "lib/language/python/runner.py", line 65, in thread
    raise TimeoutError
TimeoutError

======================================================================
ERROR: test_move_not_to_a_directory (test.TestFileSystem)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "lib/language/python/runner.py", line 65, in thread
    raise TimeoutError
TimeoutError

======================================================================
ERROR: test_move_overwrite (test.TestFileSystem)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "lib/language/python/runner.py", line 65, in thread
    raise TimeoutError
TimeoutError

======================================================================
ERROR: test_out_of_space (test.TestFileSystem)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "lib/language/python/runner.py", line 65, in thread
    raise TimeoutError
TimeoutError

======================================================================
ERROR: test_overwrite (test.TestFileSystem)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "lib/language/python/runner.py", line 65, in thread
    raise TimeoutError
TimeoutError

======================================================================
ERROR: test_remove_empty_directory (test.TestFileSystem)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "lib/language/python/runner.py", line 65, in thread
    raise TimeoutError
TimeoutError

======================================================================
ERROR: test_remove_file (test.TestFileSystem)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "lib/language/python/runner.py", line 65, in thread
    raise TimeoutError
TimeoutError

======================================================================
ERROR: test_remove_nonempty_directory (test.TestFileSystem)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "lib/language/python/runner.py", line 65, in thread
    raise TimeoutError
TimeoutError

======================================================================
ERROR: test_symlink_to_missing_file (test.TestFileSystem)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "lib/language/python/runner.py", line 65, in thread
    raise TimeoutError
TimeoutError

======================================================================
ERROR: test_valid_move (test.TestFileSystem)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "lib/language/python/runner.py", line 65, in thread
    raise TimeoutError
TimeoutError

----------------------------------------------------------------------
Ran 18 tests in 34.122s

FAILED (errors=17)

История (1 версия и 0 коментара)

Иван обнови решението на 30.04.2015 08:04 (преди над 9 години)

+import os
+import shutil
+
+
+class FileSystemError(Exception):
+ pass
+
+
+class NodeDoesNotExistError(FileSystemError):
+ pass
+
+
+class DestinationNodeExistsError(NodeDoesNotExistError):
+ pass
+
+
+class DestinationNodeDoesNotExistError(NodeDoesNotExistError):
+ pass
+
+
+class NotEnoughSpaceError(FileSystemError):
+ pass
+
+
+class NonExplicitDirectoryDeletionError(FileSystemError):
+ pass
+
+
+class NonEmptyDirectoryDeletionError(FileSystemError):
+ pass
+
+
+class SourceNodeDoesNotExistError(FileSystemError):
+ pass
+
+
+class DestinationNotADirectoryError(FileSystemError):
+ pass
+
+
+class GetNode:
+ def __init__(self, value, is_directory):
+ self.is_directory = is_directory
+ self.value = value
+ if not is_directory:
+ with open(value) as infile:
+ self.content = infile.read()
+
+
+def get_size(start_path='.'):
+ total_size = 0
+ for dirpath, dirnames, filenames in os.walk(start_path):
+ for f in filenames:
+ fp = os.path.join(dirpath, f)
+ total_size += os.path.getsize(fp)
+ return total_size
+
+
+class FileSystem:
+ def __init__(self, size):
+ self.size = size
+ self.available_size = size - 1
+
+ def get_node(self, path):
+ path = path[1:]
+ if not os.access(path, os.F_OK):
+ raise NodeDoesNotExistError
+ else:
+ return GetNode(os.path.abspath(path), os.path.isdir(path))
+
+ def create(self, path, directory=False, content=''):
+ path = path[1:]
+ if directory:
+ if os.path.exists(path):
+ raise DestinationNodeExistsError
+ elif os.path.exists(path[:path.rfind('/')]):
+ raise DestinationNodeDoesNotExistError
+ else:
+ os.mkdir(path)
+ elif len(content) > self.available_size:
+ raise NotEnoughSpaceError
+ else:
+ if os.path.exists(path):
+ raise DestinationNodeExistsError
+ elif os.path.exists(path[:path.rfind('/')]):
+ raise DestinationNodeDoesNotExistError
+ else:
+ with open(path, 'w') as infile:
+ infile.write(content)
+ self.available_size = self.available_size - len(content)
+
+ def remove(self, path, directory=False, force=True):
+ path = path[1:]
+ if os.path.exists == False:
+ raise NodeDoesNotExistError
+ elif directory == False and os.path.isdir(path):
+ raise NonExplicitDirectoryDeletionError
+ elif os.listdir(path): # differs from zero
+ if force:
+ self.available_size += get_size(path)
+ shutil.rmtree(path)
+ else:
+ raise NonEmptyDirectoryDeletionError
+ else:
+ self.available_size += os.path.getsize(path)
+ os.remove(path)
+
+ def move(source, destination):
+ source = source[1:]
+ destination = destination[1:]
+ if os.path.exists(source) is False:
+ raise SourceNodeDoesNotExistError
+ elif os.path.exists(destination) is False:
+ raise DestinationNodeDoesNotExistError
+ elif os.path.isdir(destination) is False:
+ raise DestinationNotADirectoryError
+ else:
+ shutil.move(source, destination)