1 files changed, 151 insertions, 0 deletions
diff --git a/tests/test_group_session.cpp b/tests/test_group_session.cpp
new file mode 100644
index 0000000..4a82154
--- /dev/null
+++ b/tests/test_group_session.cpp
@@ -0,0 +1,151 @@
+/* Copyright 2016 OpenMarket Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include "olm/inbound_group_session.h"
+#include "olm/outbound_group_session.h"
+#include "unittest.hh"
+
+
+int main() {
+
+{
+    TestCase test_case("Pickle outbound group session");
+
+    size_t size = olm_outbound_group_session_size();
+    uint8_t memory[size];
+    OlmOutboundGroupSession *session = olm_outbound_group_session(memory);
+
+    size_t pickle_length = olm_pickle_outbound_group_session_length(session);
+    uint8_t pickle1[pickle_length];
+    olm_pickle_outbound_group_session(session,
+                                      "secret_key", 10,
+                                      pickle1, pickle_length);
+    uint8_t pickle2[pickle_length];
+    memcpy(pickle2, pickle1, pickle_length);
+
+    uint8_t buffer2[size];
+    OlmOutboundGroupSession *session2 = olm_outbound_group_session(buffer2);
+    size_t res = olm_unpickle_outbound_group_session(session2,
+                                                     "secret_key", 10,
+                                                     pickle2, pickle_length);
+    assert_not_equals((size_t)-1, res);
+    assert_equals(pickle_length,
+                  olm_pickle_outbound_group_session_length(session2));
+    olm_pickle_outbound_group_session(session2,
+                                      "secret_key", 10,
+                                      pickle2, pickle_length);
+
+    assert_equals(pickle1, pickle2, pickle_length);
+}
+
+
+{
+    TestCase test_case("Pickle inbound group session");
+
+    size_t size = olm_inbound_group_session_size();
+    uint8_t memory[size];
+    OlmInboundGroupSession *session = olm_inbound_group_session(memory);
+
+    size_t pickle_length = olm_pickle_inbound_group_session_length(session);
+    uint8_t pickle1[pickle_length];
+    olm_pickle_inbound_group_session(session,
+                                     "secret_key", 10,
+                                     pickle1, pickle_length);
+    uint8_t pickle2[pickle_length];
+    memcpy(pickle2, pickle1, pickle_length);
+
+    uint8_t buffer2[size];
+    OlmInboundGroupSession *session2 = olm_inbound_group_session(buffer2);
+    size_t res = olm_unpickle_inbound_group_session(session2,
+                                                    "secret_key", 10,
+                                                    pickle2, pickle_length);
+    assert_not_equals((size_t)-1, res);
+    assert_equals(pickle_length,
+                  olm_pickle_inbound_group_session_length(session2));
+    olm_pickle_inbound_group_session(session2,
+                                      "secret_key", 10,
+                                      pickle2, pickle_length);
+
+    assert_equals(pickle1, pickle2, pickle_length);
+}
+
+
+{
+    TestCase test_case("Group message send/receive");
+
+    uint8_t random_bytes[] =
+        "0123456789ABDEF0123456789ABCDEF"
+        "0123456789ABDEF0123456789ABCDEF"
+        "0123456789ABDEF0123456789ABCDEF"
+        "0123456789ABDEF0123456789ABCDEF"
+        "0123456789ABDEF0123456789ABCDEF";
+
+
+    /* build the outbound session */
+    size_t size = olm_outbound_group_session_size();
+    uint8_t memory[size];
+    OlmOutboundGroupSession *session = olm_outbound_group_session(memory);
+
+    assert_equals((size_t)132,
+                  olm_init_outbound_group_session_random_length(session));
+
+    size_t res = olm_init_outbound_group_session(
+        session, random_bytes, sizeof(random_bytes));
+    assert_equals((size_t)0, res);
+
+    assert_equals(0U, olm_outbound_group_session_message_index(session));
+    size_t session_key_len = olm_outbound_group_session_key_length(session);
+    uint8_t session_key[session_key_len];
+    olm_outbound_group_session_key(session, session_key, session_key_len);
+
+
+    /* encode the message */
+    uint8_t plaintext[] = "Message";
+    size_t plaintext_length = sizeof(plaintext) - 1;
+
+    size_t msglen = olm_group_encrypt_message_length(
+        session, plaintext_length);
+
+    uint8_t msg[msglen];
+    res = olm_group_encrypt(session, plaintext, plaintext_length,
+                            msg, msglen);
+    assert_equals(msglen, res);
+    assert_equals(1U, olm_outbound_group_session_message_index(session));
+
+
+    /* build the inbound session */
+    size = olm_inbound_group_session_size();
+    uint8_t inbound_session_memory[size];
+    OlmInboundGroupSession *inbound_session =
+        olm_inbound_group_session(inbound_session_memory);
+
+    res = olm_init_inbound_group_session(
+        inbound_session, 0U, session_key, session_key_len);
+    assert_equals((size_t)0, res);
+
+    /* decode the message */
+
+    /* olm_group_decrypt_max_plaintext_length destroys the input so we have to
+       copy it. */
+    uint8_t msgcopy[msglen];
+    memcpy(msgcopy, msg, msglen);
+    size = olm_group_decrypt_max_plaintext_length(inbound_session, msgcopy, msglen);
+    uint8_t plaintext_buf[size];
+    res = olm_group_decrypt(inbound_session, msg, msglen,
+                            plaintext_buf, size);
+    assert_equals(plaintext_length, res);
+    assert_equals(plaintext, plaintext_buf, res);
+}
+
+}