Added `nose' for combox/config.py, combox/crypto.py, combox/file.py

	new file:   tests/config_test.py
	new file:   tests/crypto_test.py
	new file:   tests/file_test.py

1 files changed, 79 insertions, 0 deletions

diff --git a/tests/crypto_test.py b/tests/crypto_test.py
new file mode 100644
index 0000000..aaa3bd2
--- /dev/null
+++ b/tests/crypto_test.py
@@ -0,0 +1,79 @@
+#    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)