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       1                 :             : // Copyright (c) 2021-present 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 <wallet/transaction.h>
       6                 :             : 
       7                 :             : #include <primitives/transaction.h>
       8                 :             : #include <serialize.h>
       9                 :             : #include <streams.h>
      10                 :             : #include <test/util/common.h>
      11                 :             : #include <wallet/test/wallet_test_fixture.h>
      12                 :             : 
      13                 :             : #include <boost/test/unit_test.hpp>
      14                 :             : 
      15                 :             : namespace wallet {
      16                 :             : BOOST_FIXTURE_TEST_SUITE(wallet_transaction_tests, WalletTestingSetup)
      17                 :             : 
      18   [ +  -  +  -  :           7 : BOOST_AUTO_TEST_CASE(roundtrip)
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                      - ]
      19                 :             : {
      20         [ +  + ]:           6 :     for (uint8_t hash = 0; hash < 5; ++hash) {
      21         [ +  + ]:          30 :         for (int index = -2; index < 3; ++index) {
      22                 :          25 :             TxState state = TxStateInterpretSerialized(TxStateUnrecognized{uint256{hash}, index});
      23         [ +  - ]:          25 :             BOOST_CHECK_EQUAL(TxStateSerializedBlockHash(state), uint256{hash});
      24         [ +  - ]:          25 :             BOOST_CHECK_EQUAL(TxStateSerializedIndex(state), index);
      25                 :             :         }
      26                 :             :     }
      27                 :           1 : }
      28                 :             : 
      29   [ +  -  +  -  :           7 : BOOST_AUTO_TEST_CASE(deserialize_rejects_mismatched_variant_txid)
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                      - ]
      30                 :             : {
      31                 :             :     // Build tx_a and serialise it as a CWalletTx.
      32                 :             :     // Needs at least one input: a zero-input tx serialises vin_count as 0x00,
      33                 :             :     // which the witness-aware deserialiser misreads as the segwit marker byte.
      34                 :           1 :     CMutableTransaction mtx_a;
      35         [ +  - ]:           1 :     mtx_a.vin.emplace_back(COutPoint{Txid::FromUint256(uint256::ONE), 0});
      36   [ +  -  +  - ]:           1 :     mtx_a.vout.emplace_back(COIN, CScript() << OP_TRUE);
      37         [ +  - ]:           1 :     CTransactionRef tx_a = MakeTransactionRef(std::move(mtx_a));
      38   [ +  -  +  - ]:           2 :     CWalletTx wtx_a{tx_a, TxStateInactive{}};
      39                 :           1 :     DataStream ss;
      40         [ +  - ]:           1 :     ss << wtx_a;
      41                 :             : 
      42                 :             :     // Build tx_b with a different txid to use as a bogus variant.
      43         [ +  - ]:           1 :     CMutableTransaction mtx_b;
      44   [ +  -  +  - ]:           1 :     mtx_b.vout.emplace_back(2 * COIN, CScript() << OP_TRUE);
      45         [ +  - ]:           1 :     CTransactionRef tx_b = MakeTransactionRef(std::move(mtx_b));
      46   [ +  -  +  -  :           3 :     BOOST_REQUIRE(tx_b->GetHash() != tx_a->GetHash());
                   +  - ]
      47                 :             : 
      48                 :             :     // A variant whose txid doesn't match the canonical txid must be rejected.
      49   [ -  +  +  +  :           2 :     std::map<Wtxid, CTransactionRef> bad_variants{{tx_b->GetWitnessHash(), tx_b}};
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                      - ]
      50   [ +  -  -  +  :           2 :     BOOST_CHECK_EXCEPTION(CWalletTx(deserialize, ss, bad_variants), std::runtime_error, HasReason{"variant txid does not match wallet txid"});
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                   +  - ]
      51   [ +  -  +  - ]:           6 : }
      52                 :             : 
      53                 :             : BOOST_AUTO_TEST_SUITE_END()
      54                 :             : } // namespace wallet