refactor code

Change-Id: Ia2bc49ed8742d79000fd59f7e95fa9b957573c54
diff --git a/tests/core/leaf.t.cpp b/tests/core/leaf.t.cpp
new file mode 100644
index 0000000..c55a118
--- /dev/null
+++ b/tests/core/leaf.t.cpp
@@ -0,0 +1,158 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2014,  Regents of the University of California
+ *
+ * This file is part of NSL (NDN Signature Logger).
+ * See AUTHORS.md for complete list of NSL authors and contributors.
+ *
+ * NSL 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.
+ *
+ * NSL 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
+ * NSL, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * See AUTHORS.md for complete list of nsl authors and contributors.
+ */
+
+#include "leaf.hpp"
+#include "cryptopp.hpp"
+
+#include "boost-test.hpp"
+
+namespace nsl {
+namespace tests {
+
+BOOST_AUTO_TEST_SUITE(TestLeaf)
+
+void
+printByte(const uint8_t* buf, size_t size)
+{
+  std::stringstream ss;
+  using namespace CryptoPP;
+  StringSource is(buf, size, true, new HexEncoder(new FileSink(ss), false));
+
+  std::string output = ss.str();
+  for (size_t i = 0; i < output.size(); i++) {
+    std::cerr << "0x" << output.at(i);
+    std::cerr << output.at(++i) << ", ";
+    if ((i + 1) % 32 == 0)
+      std::cerr << std::endl;
+  }
+}
+
+BOOST_AUTO_TEST_CASE(Basic)
+{
+  Name loggerName("/test/logger");
+  Name dataName("/test/data");
+
+  BOOST_CHECK_NO_THROW(Leaf(dataName, 0, 1, 1, loggerName));
+  BOOST_CHECK_NO_THROW(Leaf(dataName, 0, 2, 1, loggerName));
+  BOOST_CHECK_THROW(Leaf(dataName, 0, 2, 3, loggerName), Leaf::Error);
+
+  Leaf leaf(dataName, 0, 2, 1, loggerName);
+
+  BOOST_CHECK_EQUAL(leaf.getDataName(), dataName);
+  BOOST_CHECK_EQUAL(leaf.getTimestamp(), 0);
+  BOOST_CHECK_EQUAL(leaf.getDataSeqNo(), 2);
+  BOOST_CHECK_EQUAL(leaf.getSignerSeqNo(), 1);
+
+  BOOST_CHECK_THROW(leaf.setDataSeqNo(0), Leaf::Error);
+  BOOST_CHECK_THROW(leaf.setSignerSeqNo(5), Leaf::Error);
+}
+
+uint8_t LEAF_BLOCK[] = {
+  0x80, 0x17,
+    0x07, 0x0c,
+      0x08, 0x04, 0x74, 0x65, 0x73, 0x74,
+      0x08, 0x04, 0x64, 0x61, 0x74, 0x61,
+    0x81, 0x01, 0x00,
+    0x82, 0x01, 0x02,
+    0x83, 0x01, 0x01
+};
+
+uint8_t LEAF_HASH[] = {
+  0x79, 0xcb, 0x54, 0xa7, 0x47, 0xa8, 0xea, 0x98, 0x92, 0x39, 0xdb, 0xcf, 0xd0, 0x9a, 0xbb, 0xbd,
+  0xe3, 0x10, 0x82, 0x3b, 0x4d, 0x46, 0xc4, 0xc1, 0x39, 0x76, 0xbd, 0x3d, 0x17, 0xcc, 0xa9, 0x2b
+};
+
+uint8_t LEAF_DATA[] = {
+  0x06, 0x79,
+    0x07, 0x33,
+      0x08, 0x04, 0x74, 0x65, 0x73, 0x74,
+      0x08, 0x06, 0x6c, 0x6f, 0x67, 0x67, 0x65, 0x72,
+      0x08, 0x01, 0x02,
+      0x08, 0x20,
+        0x79, 0xcb, 0x54, 0xa7, 0x47, 0xa8, 0xea, 0x98,
+        0x92, 0x39, 0xdb, 0xcf, 0xd0, 0x9a, 0xbb, 0xbd,
+        0xe3, 0x10, 0x82, 0x3b, 0x4d, 0x46, 0xc4, 0xc1,
+        0x39, 0x76, 0xbd, 0x3d, 0x17, 0xcc, 0xa9, 0x2b,
+    0x14, 0x00,
+    0x15, 0x19,
+      0x80, 0x17,
+        0x07, 0x0c,
+          0x08, 0x04, 0x74, 0x65, 0x73, 0x74,
+          0x08, 0x04, 0x64, 0x61, 0x74, 0x61,
+        0x81, 0x01, 0x00,
+        0x82, 0x01, 0x02,
+        0x83, 0x01, 0x01,
+    0x16, 0x03,
+      0x1b, 0x01, 0x00,
+    0x17, 0x20,
+      0x96, 0x49, 0xe0, 0x62, 0x23, 0x72, 0xd0, 0x90, 0x85, 0x9c, 0x28, 0xda, 0xc8, 0x50, 0x6f, 0x48,
+      0x56, 0x62, 0x14, 0x8d, 0x75, 0x20, 0x91, 0xa9, 0x0a, 0x46, 0xd6, 0xf8, 0xfc, 0x5d, 0x8e, 0x8e
+};
+
+BOOST_AUTO_TEST_CASE(Encoding)
+{
+  Name loggerName("/test/logger");
+  Name dataName("/test/data");
+
+  Leaf leaf(dataName, 0, 2, 1, loggerName);
+  const Block& block = leaf.wireEncode();
+
+  BOOST_CHECK_EQUAL_COLLECTIONS(block.wire(), block.wire() + block.size(),
+                                LEAF_BLOCK, LEAF_BLOCK + sizeof(LEAF_BLOCK));
+
+  ndn::ConstBufferPtr hash = leaf.getHash();
+  BOOST_CHECK_EQUAL_COLLECTIONS(hash->begin(), hash->end(),
+                                LEAF_HASH, LEAF_HASH + sizeof(LEAF_HASH));
+
+  auto data = leaf.encode();
+  BOOST_CHECK_EQUAL_COLLECTIONS(data->wireEncode().wire(),
+                                data->wireEncode().wire() + data->wireEncode().size(),
+                                LEAF_DATA,
+                                LEAF_DATA + sizeof(LEAF_DATA));
+}
+
+BOOST_AUTO_TEST_CASE(Decoding)
+{
+  Name loggerName("/test/logger");
+  Name dataName("/test/data");
+
+
+  Block block(LEAF_DATA, sizeof(LEAF_DATA));
+  Data data(block);
+
+  Leaf leaf;
+  BOOST_REQUIRE_NO_THROW(leaf.decode(data));
+
+  BOOST_CHECK_EQUAL(leaf.getDataName(), dataName);
+  BOOST_CHECK_EQUAL(leaf.getTimestamp(), 0);
+  BOOST_CHECK_EQUAL(leaf.getDataSeqNo(), 2);
+  BOOST_CHECK_EQUAL(leaf.getSignerSeqNo(), 1);
+
+  ndn::ConstBufferPtr hash = leaf.getHash();
+  BOOST_CHECK_EQUAL_COLLECTIONS(hash->begin(), hash->end(),
+                                LEAF_HASH, LEAF_HASH + sizeof(LEAF_HASH));
+}
+
+
+BOOST_AUTO_TEST_SUITE_END()
+
+} // namespace tests
+} // namespace nsl