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-rw-r--r--tests/crypto_test.py79
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diff --git a/tests/crypto_test.py b/tests/crypto_test.py
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+# Copyright (C) 2014 Combox author(s). See AUTHORS.
+#
+# 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/>.
+
+from glob import glob
+from nose.tools import *
+from os import path, remove
+
+from combox.file import (split_data, glue_data, write_file,
+ read_file, write_shards, read_shards)
+from combox.crypto import encrypt, decrypt, encrypt_shards, decrypt_shards
+
+
+FILES_DIR = path.join('tests','files')
+TEST_FILE = path.join(FILES_DIR,'the-red-star.jpg')
+PASS = 'topsecret'
+
+def test_encryption():
+ """ Read file, encrypt it to a cipher, write cipher to file, read
+ encrypted file, decrypt it, write decrypted data to file.
+"""
+
+ f = path.abspath(TEST_FILE)
+ f_content = read_file(f)
+
+ # encrypt
+ f_cipher = encrypt(f_content, PASS)
+ # decrypt
+ f_content_decrypted = decrypt(f_cipher, PASS)
+
+ assert f_content == f_content_decrypted
+
+
+def test_split_encryption():
+ """Read file, split it, encrypt shards, write encrypted shards to
+ file, read encrypted shards from file, decrypt the encrypted shards,
+ glue the shards together, write glued data to file.
+ """
+
+ f = path.abspath(TEST_FILE)
+ f_content = read_file(f)
+ f_shards = split_data(f_content, 5)
+
+ # encrypt shards
+ ciphered_shards = encrypt_shards(f_shards, PASS)
+
+ # write ciphered shards to disk
+ f_path = FILES_DIR
+ f_basename = "%s.ciphered" % path.basename(f)
+ write_shards(ciphered_shards, f_path, f_basename)
+
+ # read ciphered shards from disk
+ ciphered_shards = read_shards(f_path, f_basename)
+
+ # decrypt shards
+ f_parts = decrypt_shards(ciphered_shards, PASS)
+ # glue them shards together
+ f_content_glued = glue_data(f_parts)
+
+ assert f_content == f_content_glued
+
+ # remove ciphered shards from disk
+ c_shards = glob("%s.ciphered*" % TEST_FILE)
+ for shard in c_shards:
+ remove(shard)