[feature] unarmored incremental blobs decrypt

1 files changed, 49 insertions, 0 deletions

diff --git a/testing/tests/blobs/test_blobs.py b/testing/tests/blobs/test_blobs.py
new file mode 100644
index 00000000..5e763026
--- /dev/null
+++ b/testing/tests/blobs/test_blobs.py
@@ -0,0 +1,49 @@
+# -*- coding: utf-8 -*-
+# test_crypto.py
+# Copyright (C) 2017 LEAP
+#
+# This program 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.
+#
+# This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
+"""
+Tests for cryptographic related stuff.
+"""
+from twisted.trial import unittest
+from twisted.internet import defer
+from leap.soledad.client._blobs import DecrypterBuffer
+from leap.soledad.client import _crypto
+from io import BytesIO
+
+
+class BlobTestCase(unittest.TestCase):
+
+    class doc_info:
+        doc_id = 'D-deadbeef'
+        rev = '397932e0c77f45fcb7c3732930e7e9b2:1'
+
+    def setUp(self):
+        self.cleartext = BytesIO('rosa de foc')
+        self.secret = 'A' * 96
+        self.blob = _crypto.BlobEncryptor(
+            self.doc_info, self.cleartext,
+            armor=False,
+            secret='A' * 96)
+
+    @defer.inlineCallbacks
+    def test_decrypt_buffer(self):
+        encrypted = (yield self.blob.encrypt()).getvalue()
+        doc_id, rev = self.doc_info.doc_id, self.doc_info.rev
+        tag = encrypted[-16:]
+        buf = DecrypterBuffer(doc_id, rev, self.secret, tag)
+        buf.write(encrypted)
+        fd, size = buf.close()
+        assert fd.getvalue() == 'rosa de foc'