From 46ce223d15d4111d096f6342eb6f526d2507d7d7 Mon Sep 17 00:00:00 2001
From: James O'Beirne <james.obeirne@gmail.com>
Date: Mon, 11 Sep 2017 17:43:48 -0700
Subject: Add tests for CMerkleBlock usage with txids specified

---
 src/test/merkleblock_tests.cpp | 78 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 78 insertions(+)
 create mode 100644 src/test/merkleblock_tests.cpp

(limited to 'src/test/merkleblock_tests.cpp')

diff --git a/src/test/merkleblock_tests.cpp b/src/test/merkleblock_tests.cpp
new file mode 100644
index 0000000000..3e66c6f2c6
--- /dev/null
+++ b/src/test/merkleblock_tests.cpp
@@ -0,0 +1,78 @@
+// Copyright (c) 2012-2017 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#include "merkleblock.h"
+#include "uint256.h"
+#include "test/test_bitcoin.h"
+
+#include <boost/test/unit_test.hpp>
+
+
+BOOST_FIXTURE_TEST_SUITE(merkleblock_tests, BasicTestingSetup)
+
+/**
+ * Create a CMerkleBlock using a list of txids which will be found in the
+ * given block.
+ */
+BOOST_AUTO_TEST_CASE(merkleblock_construct_from_txids_found)
+{
+    CBlock block = getBlock13b8a();
+
+    std::set<uint256> txids;
+
+    // Last txn in block.
+    uint256 txhash1 = uint256S("0x74d681e0e03bafa802c8aa084379aa98d9fcd632ddc2ed9782b586ec87451f20");
+
+    // Second txn in block.
+    uint256 txhash2 = uint256S("0xf9fc751cb7dc372406a9f8d738d5e6f8f63bab71986a39cf36ee70ee17036d07");
+
+    txids.insert(txhash1);
+    txids.insert(txhash2);
+
+    CMerkleBlock merkleBlock(block, txids);
+
+    BOOST_CHECK_EQUAL(merkleBlock.header.GetHash().GetHex(), block.GetHash().GetHex());
+
+    // vMatchedTxn is only used when bloom filter is specified.
+    BOOST_CHECK_EQUAL(merkleBlock.vMatchedTxn.size(), 0);
+
+    std::vector<uint256> vMatched;
+    std::vector<unsigned int> vIndex;
+
+    BOOST_CHECK_EQUAL(merkleBlock.txn.ExtractMatches(vMatched, vIndex).GetHex(), block.hashMerkleRoot.GetHex());
+    BOOST_CHECK_EQUAL(vMatched.size(), 2);
+
+    // Ordered by occurrence in depth-first tree traversal.
+    BOOST_CHECK_EQUAL(vMatched[0].ToString(), txhash2.ToString());
+    BOOST_CHECK_EQUAL(vIndex[0], 1);
+
+    BOOST_CHECK_EQUAL(vMatched[1].ToString(), txhash1.ToString());
+    BOOST_CHECK_EQUAL(vIndex[1], 8);
+}
+
+
+/**
+ * Create a CMerkleBlock using a list of txids which will not be found in the
+ * given block.
+ */
+BOOST_AUTO_TEST_CASE(merkleblock_construct_from_txids_not_found)
+{
+    CBlock block = getBlock13b8a();
+
+    std::set<uint256> txids2;
+    txids2.insert(uint256S("0xc0ffee00003bafa802c8aa084379aa98d9fcd632ddc2ed9782b586ec87451f20"));
+    CMerkleBlock merkleBlock(block, txids2);
+
+    BOOST_CHECK_EQUAL(merkleBlock.header.GetHash().GetHex(), block.GetHash().GetHex());
+    BOOST_CHECK_EQUAL(merkleBlock.vMatchedTxn.size(), 0);
+
+    std::vector<uint256> vMatched;
+    std::vector<unsigned int> vIndex;
+
+    BOOST_CHECK_EQUAL(merkleBlock.txn.ExtractMatches(vMatched, vIndex).GetHex(), block.hashMerkleRoot.GetHex());
+    BOOST_CHECK_EQUAL(vMatched.size(), 0);
+    BOOST_CHECK_EQUAL(vIndex.size(), 0);
+}
+
+BOOST_AUTO_TEST_SUITE_END()
-- 
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