From 457a75170e061c872f64840df6b3e548b887ff7a Mon Sep 17 00:00:00 2001
From: Zane Beckwith <zanebeckwith@aol.com>
Date: Wed, 27 Sep 2017 11:05:19 -0500
Subject: [PATCH] Test serialization of group-public-key.

---
 test/CMakeLists.txt           |  1 +
 test/group_public_key-tests.c | 85 +++++++++++++++++++++++++++++++++++
 2 files changed, 86 insertions(+)
 create mode 100644 test/group_public_key-tests.c

diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 03fec67..bb2518c 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -19,6 +19,7 @@ include(CTest)
 set(CURRENT_TEST_BINARY_DIR ${CMAKE_BINARY_DIR}/testBin/)
 
 set(TEST_SRCS
+        group_public_key-tests.c
         sign-and-verify-tests.c
         issuer_keypair-tests.c
         credential-tests.c
diff --git a/test/group_public_key-tests.c b/test/group_public_key-tests.c
new file mode 100644
index 0000000..35079c7
--- /dev/null
+++ b/test/group_public_key-tests.c
@@ -0,0 +1,85 @@
+/******************************************************************************
+ *
+ * Copyright 2017 Xaptum, Inc.
+ * 
+ *    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 "ecdaa-test-utils.h"
+
+#include <ecdaa/group_public_key_BN254.h>
+
+#include "../src/amcl-extensions/ecp2_BN254.h"
+
+#include <stdio.h>
+#include <string.h>
+
+static void serialize_then_deserialize_basepoints();
+static void lengths_same();
+static void deserialize_garbage_fails();
+
+int main()
+{
+    serialize_then_deserialize_basepoints();
+    lengths_same();
+    deserialize_garbage_fails();
+
+    return 0;
+}
+
+static void serialize_then_deserialize_basepoints()
+{
+    printf("Starting group_public_key::serialize_then_deserialize_basepoints...\n");
+
+    struct ecdaa_group_public_key_BN254 gpk;
+
+    ecp2_BN254_set_to_generator(&gpk.X);
+    ecp2_BN254_set_to_generator(&gpk.Y);
+
+
+    uint8_t buffer[ECDAA_GROUP_PUBLIC_KEY_BN254_LENGTH];
+
+    ecdaa_group_public_key_BN254_serialize(buffer, &gpk);
+
+    struct ecdaa_group_public_key_BN254 gpk_deserialized;
+    TEST_ASSERT(0 == ecdaa_group_public_key_BN254_deserialize(&gpk_deserialized, buffer));
+
+    TEST_ASSERT(ECP2_BN254_equals(&gpk.X, &gpk_deserialized.X));
+    TEST_ASSERT(ECP2_BN254_equals(&gpk.Y, &gpk_deserialized.Y));
+
+    printf("\tsuccess\n");
+}
+
+static void lengths_same()
+{
+    printf("Starting group_public_key::lengths_same...\n");
+
+    TEST_ASSERT(ECDAA_GROUP_PUBLIC_KEY_BN254_LENGTH == ecdaa_group_public_key_BN254_length());
+
+    printf("\tsuccess\n");
+}
+
+static void deserialize_garbage_fails()
+{
+    printf("Starting group_public_key::deserialize_garbage_fails...\n");
+
+    uint8_t buffer[ECDAA_GROUP_PUBLIC_KEY_BN254_LENGTH] = {0};
+    memset(buffer, 1, sizeof(buffer));  // All 1's
+    buffer[0] = 0x4;
+
+    struct ecdaa_group_public_key_BN254 gpk_deserialized;
+    TEST_ASSERT(-1 == ecdaa_group_public_key_BN254_deserialize(&gpk_deserialized, buffer));
+
+    printf("\tsuccess\n");
+}