refactor code

Change-Id: Ia2bc49ed8742d79000fd59f7e95fa9b957573c54
diff --git a/tests/core/db.t.cpp b/tests/core/db.t.cpp
new file mode 100644
index 0000000..84ce74e
--- /dev/null
+++ b/tests/core/db.t.cpp
@@ -0,0 +1,167 @@
+/* -*- 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 "db.hpp"
+#include "db-fixture.hpp"
+
+#include <ndn-cxx/security/digest-sha256.hpp>
+#include <ndn-cxx/encoding/buffer-stream.hpp>
+#include "boost-test.hpp"
+
+namespace nsl {
+namespace tests {
+
+BOOST_FIXTURE_TEST_SUITE(TestDb, DbFixture)
+
+BOOST_AUTO_TEST_CASE(Basic)
+{
+  ndn::DigestSha256 digest;
+  ndn::ConstBufferPtr hash = make_shared<ndn::Buffer>(32);
+  Data data1(Name("/logger/name/5/0/abcdabcdabcdabcdabcd/complete"));
+  data1.setSignature(digest);
+  data1.setSignatureValue(Block(tlv::SignatureValue, hash));
+  Data data2(Name("/logger/name/5/32/abcdabcdabcdabcdabcd/complete"));
+  data2.setSignature(digest);
+  data2.setSignatureValue(Block(tlv::SignatureValue, hash));
+  Data data3(Name("/logger/name/5/32/abcdabcdabcdabcdabcd/33"));
+  data3.setSignature(digest);
+  data3.setSignatureValue(Block(tlv::SignatureValue, hash));
+
+  BOOST_CHECK_EQUAL(db.getPendingSubTrees().size(), 0);
+  BOOST_CHECK(db.getSubTreeData(5, 0) == nullptr);
+  db.insertSubTreeData(5, 0, data1);
+  BOOST_REQUIRE(db.getSubTreeData(5, 0) != nullptr);
+  BOOST_CHECK(db.getSubTreeData(5, 0)->wireEncode() == data1.wireEncode());
+  BOOST_CHECK_EQUAL(db.getPendingSubTrees().size(), 0);
+
+  BOOST_CHECK(db.getSubTreeData(5, 32) == nullptr);
+  db.insertSubTreeData(5, 32, data3, false, 33);
+  BOOST_REQUIRE(db.getSubTreeData(5, 32) != nullptr);
+  BOOST_CHECK(db.getSubTreeData(5, 32)->wireEncode() == data3.wireEncode());
+  BOOST_CHECK_EQUAL(db.getPendingSubTrees().size(), 1);
+
+  db.insertSubTreeData(5, 32, data2);
+  BOOST_REQUIRE(db.getSubTreeData(5, 32) != nullptr);
+  BOOST_CHECK(db.getSubTreeData(5, 32)->wireEncode() == data2.wireEncode());
+  BOOST_CHECK_EQUAL(db.getPendingSubTrees().size(), 0);
+}
+
+BOOST_AUTO_TEST_CASE(Basic2)
+{
+  ndn::DigestSha256 digest;
+  ndn::ConstBufferPtr hash = make_shared<ndn::Buffer>(32);
+  Data data1(Name("/logger/name/10/0/abcdabcdabcdabcdabcd/33"));
+  data1.setSignature(digest);
+  data1.setSignatureValue(Block(tlv::SignatureValue, hash));
+  Data data2(Name("/logger/name/5/32/abcdabcdabcdabcdabcd/33"));
+  data2.setSignature(digest);
+  data2.setSignatureValue(Block(tlv::SignatureValue, hash));
+
+  db.insertSubTreeData(5, 32, data2, false, 33);
+  db.insertSubTreeData(10, 0, data1, false, 33);
+  std::vector<shared_ptr<Data>> subtrees = db.getPendingSubTrees();
+
+  BOOST_CHECK_EQUAL(subtrees.size(), 2);
+  BOOST_CHECK(subtrees[0]->wireEncode() == data1.wireEncode());
+  BOOST_CHECK(subtrees[1]->wireEncode() == data2.wireEncode());
+}
+
+const uint8_t Data1[] = {
+0x06, 0xc5, // NDN Data
+    0x07, 0x14, // Name
+        0x08, 0x05,
+            0x6c, 0x6f, 0x63, 0x61, 0x6c,
+        0x08, 0x03,
+            0x6e, 0x64, 0x6e,
+        0x08, 0x06,
+            0x70, 0x72, 0x65, 0x66, 0x69, 0x78,
+    0x14, 0x04, // MetaInfo
+        0x19, 0x02, // FreshnessPeriod
+            0x27, 0x10,
+    0x15, 0x08, // Content
+        0x53, 0x55, 0x43, 0x43, 0x45, 0x53, 0x53, 0x21,
+    0x16, 0x1b, // SignatureInfo
+        0x1b, 0x01, // SignatureType
+            0x01,
+        0x1c, 0x16, // KeyLocator
+            0x07, 0x14, // Name
+                0x08, 0x04,
+                    0x74, 0x65, 0x73, 0x74,
+                0x08, 0x03,
+                    0x6b, 0x65, 0x79,
+                0x08, 0x07,
+                    0x6c, 0x6f, 0x63, 0x61, 0x74, 0x6f, 0x72,
+    0x17, 0x80, // SignatureValue
+        0x2f, 0xd6, 0xf1, 0x6e, 0x80, 0x6f, 0x10, 0xbe, 0xb1, 0x6f, 0x3e, 0x31, 0xec,
+        0xe3, 0xb9, 0xea, 0x83, 0x30, 0x40, 0x03, 0xfc, 0xa0, 0x13, 0xd9, 0xb3, 0xc6,
+        0x25, 0x16, 0x2d, 0xa6, 0x58, 0x41, 0x69, 0x62, 0x56, 0xd8, 0xb3, 0x6a, 0x38,
+        0x76, 0x56, 0xea, 0x61, 0xb2, 0x32, 0x70, 0x1c, 0xb6, 0x4d, 0x10, 0x1d, 0xdc,
+        0x92, 0x8e, 0x52, 0xa5, 0x8a, 0x1d, 0xd9, 0x96, 0x5e, 0xc0, 0x62, 0x0b, 0xcf,
+        0x3a, 0x9d, 0x7f, 0xca, 0xbe, 0xa1, 0x41, 0x71, 0x85, 0x7a, 0x8b, 0x5d, 0xa9,
+        0x64, 0xd6, 0x66, 0xb4, 0xe9, 0x8d, 0x0c, 0x28, 0x43, 0xee, 0xa6, 0x64, 0xe8,
+        0x55, 0xf6, 0x1c, 0x19, 0x0b, 0xef, 0x99, 0x25, 0x1e, 0xdc, 0x78, 0xb3, 0xa7,
+        0xaa, 0x0d, 0x14, 0x58, 0x30, 0xe5, 0x37, 0x6a, 0x6d, 0xdb, 0x56, 0xac, 0xa3,
+        0xfc, 0x90, 0x7a, 0xb8, 0x66, 0x9c, 0x0e, 0xf6, 0xb7, 0x64, 0xd1
+};
+
+BOOST_AUTO_TEST_CASE(Basic3)
+{
+  Name loggerName("/test/logger");
+  Name dataName("/test/data");
+  Block block(Data1, sizeof(Data1));
+  Data data(block);
+
+  BOOST_CHECK_EQUAL(db.getMaxLeafSeq(), 0);
+
+  Leaf leaf(dataName, 1, 0, 0, loggerName);
+  BOOST_CHECK(db.insertLeafData(leaf, data));
+  BOOST_CHECK_EQUAL(db.getMaxLeafSeq(), 1);
+
+  auto result = db.getLeaf(0);
+  BOOST_CHECK_EQUAL(result.first->getDataName(), dataName);
+  BOOST_CHECK_EQUAL(result.first->getTimestamp(), 1);
+  BOOST_CHECK_EQUAL(result.first->getDataSeqNo(), 0);
+  BOOST_CHECK_EQUAL(result.first->getSignerSeqNo(), 0);
+  BOOST_REQUIRE(result.second != nullptr);
+  BOOST_CHECK_EQUAL(result.second->getName(), data.getName());
+
+  Leaf leaf2(dataName, 2, 1, 0, loggerName);
+  BOOST_CHECK(db.insertLeafData(leaf2));
+  BOOST_CHECK_EQUAL(db.getMaxLeafSeq(), 2);
+
+  result = db.getLeaf(1);
+  BOOST_REQUIRE(result.first != nullptr);
+  BOOST_CHECK_EQUAL(result.first->getDataName(), dataName);
+  BOOST_CHECK_EQUAL(result.first->getTimestamp(), 2);
+  BOOST_CHECK_EQUAL(result.first->getDataSeqNo(), 1);
+  BOOST_CHECK_EQUAL(result.first->getSignerSeqNo(), 0);
+  BOOST_REQUIRE(result.second == nullptr);
+
+  Leaf leaf3(dataName, 2, 5, 0, loggerName);
+  BOOST_CHECK_EQUAL(db.insertLeafData(leaf), false);
+  BOOST_CHECK_EQUAL(db.insertLeafData(leaf2), false);
+  BOOST_CHECK_EQUAL(db.insertLeafData(leaf3), false);
+}
+
+BOOST_AUTO_TEST_SUITE_END()
+
+} // namespace tests
+} // namespace nsl