TEST(wallet_tests, find_unspent_notes) { SelectParams(CBaseChainParams::TESTNET); CWallet wallet; auto sk = libzcash::SpendingKey::random(); wallet.AddSpendingKey(sk); auto wtx = GetValidReceive(sk, 10, true); auto note = GetNote(sk, wtx, 0, 1); auto nullifier = note.nullifier(sk); mapNoteData_t noteData; JSOutPoint jsoutpt {wtx.GetHash(), 0, 1}; CNoteData nd {sk.address(), nullifier}; noteData[jsoutpt] = nd; wtx.SetNoteData(noteData); wallet.AddToWallet(wtx, true, NULL); EXPECT_FALSE(wallet.IsSpent(nullifier)); // We currently have an unspent and unconfirmed note in the wallet (depth of -1) std::vector<CNotePlaintextEntry> entries; wallet.GetFilteredNotes(entries, "", 0); EXPECT_EQ(0, entries.size()); entries.clear(); wallet.GetFilteredNotes(entries, "", -1); EXPECT_EQ(1, entries.size()); entries.clear(); // Fake-mine the transaction EXPECT_EQ(-1, chainActive.Height()); CBlock block; block.vtx.push_back(wtx); block.hashMerkleRoot = block.BuildMerkleTree(); auto blockHash = block.GetHash(); CBlockIndex fakeIndex {block}; mapBlockIndex.insert(std::make_pair(blockHash, &fakeIndex)); chainActive.SetTip(&fakeIndex); EXPECT_TRUE(chainActive.Contains(&fakeIndex)); EXPECT_EQ(0, chainActive.Height()); wtx.SetMerkleBranch(block); wallet.AddToWallet(wtx, true, NULL); EXPECT_FALSE(wallet.IsSpent(nullifier)); // We now have an unspent and confirmed note in the wallet (depth of 1) wallet.GetFilteredNotes(entries, "", 0); EXPECT_EQ(1, entries.size()); entries.clear(); wallet.GetFilteredNotes(entries, "", 1); EXPECT_EQ(1, entries.size()); entries.clear(); wallet.GetFilteredNotes(entries, "", 2); EXPECT_EQ(0, entries.size()); entries.clear(); // Let's spend the note. auto wtx2 = GetValidSpend(sk, note, 5); wallet.AddToWallet(wtx2, true, NULL); EXPECT_FALSE(wallet.IsSpent(nullifier)); // Fake-mine a spend transaction EXPECT_EQ(0, chainActive.Height()); CBlock block2; block2.vtx.push_back(wtx2); block2.hashMerkleRoot = block2.BuildMerkleTree(); block2.hashPrevBlock = blockHash; auto blockHash2 = block2.GetHash(); CBlockIndex fakeIndex2 {block2}; mapBlockIndex.insert(std::make_pair(blockHash2, &fakeIndex2)); fakeIndex2.nHeight = 1; chainActive.SetTip(&fakeIndex2); EXPECT_TRUE(chainActive.Contains(&fakeIndex2)); EXPECT_EQ(1, chainActive.Height()); wtx2.SetMerkleBranch(block2); wallet.AddToWallet(wtx2, true, NULL); EXPECT_TRUE(wallet.IsSpent(nullifier)); // The note has been spent. By default, GetFilteredNotes() ignores spent notes. wallet.GetFilteredNotes(entries, "", 0); EXPECT_EQ(0, entries.size()); entries.clear(); // Let's include spent notes to retrieve it. wallet.GetFilteredNotes(entries, "", 0, false); EXPECT_EQ(1, entries.size()); entries.clear(); // The spent note has two confirmations. wallet.GetFilteredNotes(entries, "", 2, false); EXPECT_EQ(1, entries.size()); entries.clear(); // It does not have 3 confirmations. wallet.GetFilteredNotes(entries, "", 3, false); EXPECT_EQ(0, entries.size()); entries.clear(); // Let's receive a new note CWalletTx wtx3; { auto wtx = GetValidReceive(sk, 20, true); auto note = GetNote(sk, wtx, 0, 1); auto nullifier = note.nullifier(sk); mapNoteData_t noteData; JSOutPoint jsoutpt {wtx.GetHash(), 0, 1}; CNoteData nd {sk.address(), nullifier}; noteData[jsoutpt] = nd; wtx.SetNoteData(noteData); wallet.AddToWallet(wtx, true, NULL); EXPECT_FALSE(wallet.IsSpent(nullifier)); wtx3 = wtx; } // Fake-mine the new transaction EXPECT_EQ(1, chainActive.Height()); CBlock block3; block3.vtx.push_back(wtx3); block3.hashMerkleRoot = block3.BuildMerkleTree(); block3.hashPrevBlock = blockHash2; auto blockHash3 = block3.GetHash(); CBlockIndex fakeIndex3 {block3}; mapBlockIndex.insert(std::make_pair(blockHash3, &fakeIndex3)); fakeIndex3.nHeight = 2; chainActive.SetTip(&fakeIndex3); EXPECT_TRUE(chainActive.Contains(&fakeIndex3)); EXPECT_EQ(2, chainActive.Height()); wtx3.SetMerkleBranch(block3); wallet.AddToWallet(wtx3, true, NULL); // We now have an unspent note which has one confirmation, in addition to our spent note. wallet.GetFilteredNotes(entries, "", 1); EXPECT_EQ(1, entries.size()); entries.clear(); // Let's return the spent note too. wallet.GetFilteredNotes(entries, "", 1, false); EXPECT_EQ(2, entries.size()); entries.clear(); // Increasing number of confirmations will exclude our new unspent note. wallet.GetFilteredNotes(entries, "", 2, false); EXPECT_EQ(1, entries.size()); entries.clear(); // If we also ignore spent notes at thie depth, we won't find any notes. wallet.GetFilteredNotes(entries, "", 2, true); EXPECT_EQ(0, entries.size()); entries.clear(); // Tear down chainActive.SetTip(NULL); mapBlockIndex.erase(blockHash); mapBlockIndex.erase(blockHash2); mapBlockIndex.erase(blockHash3); }