1  // Copyright (c) 2012-2021 The Bitcoin Core developers
 2  // Distributed under the MIT software license, see the accompanying
 3  // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 4  
 5  #include <merkleblock.h>
 6  #include <test/util/setup_common.h>
 7  #include <uint256.h>
 8  
 9  #include <boost/test/unit_test.hpp>
10  
11  #include <set>
12  #include <vector>
13  
14  BOOST_AUTO_TEST_SUITE(merkleblock_tests)
15  
16  /**
17   * Create a CMerkleBlock using a list of txids which will be found in the
18   * given block.
19   */
20  BOOST_AUTO_TEST_CASE(merkleblock_construct_from_txids_found)
21  {
22      CBlock block = getBlock13b8a();
23  
24      std::set<Txid> txids;
25  
26      // Last txn in block.
27      Txid txhash1{TxidFromString("0x74d681e0e03bafa802c8aa084379aa98d9fcd632ddc2ed9782b586ec87451f20")};
28  
29      // Second txn in block.
30      Txid txhash2{TxidFromString("0xf9fc751cb7dc372406a9f8d738d5e6f8f63bab71986a39cf36ee70ee17036d07")};
31  
32      txids.insert(txhash1);
33      txids.insert(txhash2);
34  
35      CMerkleBlock merkleBlock(block, txids);
36  
37      BOOST_CHECK_EQUAL(merkleBlock.header.GetHash().GetHex(), block.GetHash().GetHex());
38  
39      // vMatchedTxn is only used when bloom filter is specified.
40      BOOST_CHECK_EQUAL(merkleBlock.vMatchedTxn.size(), 0U);
41  
42      std::vector<uint256> vMatched;
43      std::vector<unsigned int> vIndex;
44  
45      BOOST_CHECK_EQUAL(merkleBlock.txn.ExtractMatches(vMatched, vIndex).GetHex(), block.hashMerkleRoot.GetHex());
46      BOOST_CHECK_EQUAL(vMatched.size(), 2U);
47  
48      // Ordered by occurrence in depth-first tree traversal.
49      BOOST_CHECK_EQUAL(vMatched[0].ToString(), txhash2.ToString());
50      BOOST_CHECK_EQUAL(vIndex[0], 1U);
51  
52      BOOST_CHECK_EQUAL(vMatched[1].ToString(), txhash1.ToString());
53      BOOST_CHECK_EQUAL(vIndex[1], 8U);
54  }
55  
56  
57  /**
58   * Create a CMerkleBlock using a list of txids which will not be found in the
59   * given block.
60   */
61  BOOST_AUTO_TEST_CASE(merkleblock_construct_from_txids_not_found)
62  {
63      CBlock block = getBlock13b8a();
64  
65      std::set<Txid> txids2;
66      txids2.insert(TxidFromString("0xc0ffee00003bafa802c8aa084379aa98d9fcd632ddc2ed9782b586ec87451f20"));
67      CMerkleBlock merkleBlock(block, txids2);
68  
69      BOOST_CHECK_EQUAL(merkleBlock.header.GetHash().GetHex(), block.GetHash().GetHex());
70      BOOST_CHECK_EQUAL(merkleBlock.vMatchedTxn.size(), 0U);
71  
72      std::vector<uint256> vMatched;
73      std::vector<unsigned int> vIndex;
74  
75      BOOST_CHECK_EQUAL(merkleBlock.txn.ExtractMatches(vMatched, vIndex).GetHex(), block.hashMerkleRoot.GetHex());
76      BOOST_CHECK_EQUAL(vMatched.size(), 0U);
77      BOOST_CHECK_EQUAL(vIndex.size(), 0U);
78  }
79  
80  BOOST_AUTO_TEST_SUITE_END()