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# -*- coding: utf-8 -*-
#
# Copyright (C) 2016 Dr. Robert C. Green II.
#
# This file is part of Combox.
#
# Combox is free software: you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Combox is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Combox (see COPYING). If not, see
# <http://www.gnu.org/licenses/>.
import yaml
from hashlib import sha512
from glob import glob
from nose.tools import *
from os import path, remove
from shutil import copyfile
from combox.config import get_nodedirs
from combox.crypto import split_and_encrypt
from combox.file import *
from tests.utils import get_config, rm_nodedirs, rm_configdir, purge
class TestFile(object):
"""
Class that tests the file.py module.
"""
@classmethod
def setup_class(self):
"""Set things up."""
self.config = get_config()
FILES_DIR = self.config['combox_dir']
self.TEST_FILE = path.join(FILES_DIR,'the-red-star.jpg')
# files that have to be removed at the end of this test class
# should be appended to this list.
self.purge_list = []
def test_split(self):
"""Test to split, glue and create a copy of the image file from the
glued image file.
"""
f = path.abspath(self.TEST_FILE)
f_content = read_file(f)
f_parts = split_data(f_content, 5)
f_content_glued = glue_data(f_parts)
assert f_content == f_content_glued
def test_shards(self):
"""Split file into N shards, write them to disk, glue them together
and check if they're the same as the orginal file.
"""
# no. of shards = no. of nodes
SHARDS = len(self.config['nodes_info'].keys())
f = path.abspath(self.TEST_FILE)
f_content = read_file(f)
f_shards = split_data(f_content, SHARDS)
f_basename = path.basename(f)
nodes = get_nodedirs(self.config)
write_shards(f_shards, nodes, f_basename)
# check if the shards have been created.
i = 0
for node in nodes:
shard = "%s.shard%s" % (path.join(node, f_basename), i)
i += 1
assert path.isfile(shard)
f_shards = read_shards(nodes, f_basename)
f_content_glued = glue_data(f_shards)
assert f_content == f_content_glued
def test_hashing(self):
"""
Tests the hashing function - hash_file
"""
fcontent = read_file(self.TEST_FILE)
fhash_0 = hash_file(self.TEST_FILE)
fhash_1 = hash_file(self.TEST_FILE, fcontent)
assert fhash_0 == sha512(fcontent).hexdigest()
assert fhash_1 == sha512(fcontent).hexdigest()
def test_relativepath(self):
"""
Tests the relative_path function
"""
test_file_basename = path.basename(self.TEST_FILE)
assert test_file_basename == relative_path(self.TEST_FILE,
self.config)
split_and_encrypt(self.TEST_FILE, self.config)
test_file_shard_0 = '%s.shard.0' % test_file_basename
test_file_shard_0_abspath = path.join(get_nodedirs(self.config)[0],
test_file_shard_0)
test_file_shard_1 = '%s.shard.1' % test_file_basename
test_file_shard_1_abspath = path.join(get_nodedirs(self.config)[1],
test_file_shard_1)
assert test_file_shard_0 == relative_path(test_file_shard_0_abspath,
self.config, False)
assert test_file_shard_1 == relative_path(test_file_shard_1_abspath,
self.config, False)
def test_cbpath(self):
"""Tests the cb_path function"""
split_and_encrypt(self.TEST_FILE, self.config)
test_file_shard_0 = '%s.shard0' % path.basename(self.TEST_FILE)
test_file_shard_0_abspath = path.join(get_nodedirs(self.config)[0],
test_file_shard_0)
test_file_shard_1 = '%s.shard1' % path.basename(self.TEST_FILE)
test_file_shard_1_abspath = path.join(get_nodedirs(self.config)[1],
test_file_shard_1)
assert self.TEST_FILE == cb_path(test_file_shard_0_abspath,
self.config)
assert self.TEST_FILE == cb_path(test_file_shard_1_abspath,
self.config)
# a directory inside combox dir.
foo_dir = path.join(self.config['combox_dir'], 'foo')
mk_nodedir(foo_dir, self.config)
foo_nodedir = path.join(get_nodedirs(self.config)[0],
'foo')
assert foo_dir == cb_path(foo_nodedir, self.config)
def test_nodepath(self):
"""Tests the node_path function"""
split_and_encrypt(self.TEST_FILE, self.config)
test_file_shard_0 = '%s.shard0' % path.basename(self.TEST_FILE)
test_file_shard_0_abspath = path.join(get_nodedirs(self.config)[0],
test_file_shard_0)
assert test_file_shard_0_abspath == node_path(self.TEST_FILE,
self.config,
isfile=True)
foo_dir = path.join(self.config['combox_dir'], 'foo')
foo_nodedir = path.join(get_nodedirs(self.config)[0],
'foo')
assert foo_nodedir == node_path(foo_dir, self.config,
isfile=False)
def test_nodepaths(self):
"""Tests the node_paths function."""
nodes = get_nodedirs(self.config)
node_iter = iter(nodes)
# test for file shards
foo = path.join(self.config['combox_dir'], 'foo.txt')
foo_rel_path = relative_path(foo, self.config)
foo_shards = node_paths(foo, self.config, True)
shard_no = 0
for foo_shard in foo_shards:
file_shard = '%s.shard%d' % (foo_rel_path, shard_no)
n_path = path.join(node_iter.next(), file_shard)
assert_equal(n_path, foo_shard)
shard_no += 1
# test for directory inside node_directories
bar = path.join(self.config['combox_dir'], 'bar')
bar_rel_path = relative_path(bar, self.config)
bar_n_paths = node_paths(bar, self.config, False)
node_iter = iter(nodes)
for bar_n_path in bar_n_paths:
b_n_path = path.join(node_iter.next(), bar_rel_path)
assert_equal(b_n_path, bar_n_path)
def test_rmpath(self):
"""Tests rm_path function"""
new_dir = path.join(self.config['combox_dir'], 'fooius')
os.mkdir(new_dir)
assert path.isdir(new_dir)
new_file = path.join(new_dir, 'fooius.ext')
copyfile(self.TEST_FILE, new_file)
assert path.isfile(new_file)
rm_path(new_file)
assert not path.isfile(new_file)
rm_path(new_dir)
assert not path.isdir(new_dir)
def test_mkdir(self):
"""Tests mk_dir function."""
new_dir = path.join(self.config['combox_dir'], 'barius')
mk_dir(new_dir)
assert path.isdir(new_dir)
# add it to purge list
self.purge_list.append(new_dir)
def test_noofshards(self):
"""Tests the node_paths function."""
nodes = get_nodedirs(self.config)
node_iter = iter(nodes)
lorem = path.join(self.config['combox_dir'], 'lorem.txt')
# get the shards on the node directories
split_and_encrypt(lorem, self.config)
# no. of shards must be equal to no. of node directories.
assert_equal(no_of_shards(lorem, self.config),
len(nodes))
n_paths = node_paths(lorem, self.config, isfile=True)
# now remove first shard
rm_path(n_paths[0])
# no. of shards must be equal to one less than the no. of node
# directories.
assert_equal(no_of_shards(lorem, self.config),
len(nodes) - 1)
# now remove second shard
rm_path(n_paths[1])
# no. of shards must be equal to two less than the no. of node
# directories.
assert_equal(no_of_shards(lorem, self.config),
len(nodes) - 2)
def teardown(self):
"""Cleans up things after each test in this class."""
purge(self.purge_list)
@classmethod
def teardown_class(self):
"""Purge the mess created by this test."""
rm_shards(self.TEST_FILE, self.config)
rm_nodedirs(self.config)
rm_configdir()
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