Hush Full Node software. We were censored from Github, this is where all development happens now.
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338 lines
13 KiB
338 lines
13 KiB
// Copyright (c) 2019-2020 The Hush developers
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// Distributed under the GPLv3 software license, see the accompanying
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// file COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html
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#include "chainparams.h"
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#include "consensus/params.h"
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#include "consensus/validation.h"
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#include "key_io.h"
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#include "main.h"
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#include "pubkey.h"
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#include "transaction_builder.h"
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#include "zcash/Address.hpp"
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#include <gmock/gmock.h>
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#include <gtest/gtest.h>
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static const std::string tSecretRegtest = "cND2ZvtabDbJ1gucx9GWH6XT9kgTAqfb6cotPt5Q5CyxVDhid2EN";
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TEST(TransactionBuilder, Invoke)
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{
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SelectParams(CBaseChainParams::REGTEST);
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UpdateNetworkUpgradeParameters(Consensus::UPGRADE_OVERWINTER, Consensus::NetworkUpgrade::ALWAYS_ACTIVE);
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UpdateNetworkUpgradeParameters(Consensus::UPGRADE_SAPLING, Consensus::NetworkUpgrade::ALWAYS_ACTIVE);
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auto consensusParams = Params().GetConsensus();
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CBasicKeyStore keystore;
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CKey tsk = DecodeSecret(tSecretRegtest);
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keystore.AddKey(tsk);
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auto scriptPubKey = GetScriptForDestination(tsk.GetPubKey().GetID());
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auto sk_from = libzcash::SaplingSpendingKey::random();
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auto fvk_from = sk_from.full_viewing_key();
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auto sk = libzcash::SaplingSpendingKey::random();
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auto expsk = sk.expanded_spending_key();
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auto fvk = sk.full_viewing_key();
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auto ivk = fvk.in_viewing_key();
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libzcash::diversifier_t d = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
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auto pk = *ivk.address(d);
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// Create a shielding transaction from transparent to Sapling
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// 0.0005 t-ZEC in, 0.0004 z-ZEC out, 0.0001 t-ZEC fee
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auto builder1 = TransactionBuilder(consensusParams, 1, &keystore);
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builder1.AddTransparentInput(COutPoint(), scriptPubKey, 50000);
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builder1.AddSaplingOutput(fvk_from.ovk, pk, 40000, {});
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auto maybe_tx1 = builder1.Build();
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ASSERT_EQ(static_cast<bool>(maybe_tx1), true);
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auto tx1 = maybe_tx1.get();
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EXPECT_EQ(tx1.vin.size(), 1);
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EXPECT_EQ(tx1.vout.size(), 0);
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EXPECT_EQ(tx1.vjoinsplit.size(), 0);
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EXPECT_EQ(tx1.vShieldedSpend.size(), 0);
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EXPECT_EQ(tx1.vShieldedOutput.size(), 1);
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EXPECT_EQ(tx1.valueBalance, -40000);
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CValidationState state;
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EXPECT_TRUE(ContextualCheckTransaction(0,tx1, state, 2, 0));
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EXPECT_EQ(state.GetRejectReason(), "");
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// Prepare to spend the note that was just created
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auto maybe_pt = libzcash::SaplingNotePlaintext::decrypt(
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tx1.vShieldedOutput[0].encCiphertext, ivk, tx1.vShieldedOutput[0].ephemeralKey, tx1.vShieldedOutput[0].cm);
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ASSERT_EQ(static_cast<bool>(maybe_pt), true);
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auto maybe_note = maybe_pt.get().note(ivk);
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ASSERT_EQ(static_cast<bool>(maybe_note), true);
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auto note = maybe_note.get();
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SaplingMerkleTree tree;
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tree.append(tx1.vShieldedOutput[0].cm);
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auto anchor = tree.root();
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auto witness = tree.witness();
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// Create a Sapling-only transaction
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// 0.0004 z-ZEC in, 0.00025 z-ZEC out, 0.0001 t-ZEC fee, 0.00005 z-ZEC change
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auto builder2 = TransactionBuilder(consensusParams, 2);
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ASSERT_TRUE(builder2.AddSaplingSpend(expsk, note, anchor, witness));
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// Check that trying to add a different anchor fails
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ASSERT_FALSE(builder2.AddSaplingSpend(expsk, note, uint256(), witness));
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builder2.AddSaplingOutput(fvk.ovk, pk, 25000, {});
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auto maybe_tx2 = builder2.Build();
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ASSERT_EQ(static_cast<bool>(maybe_tx2), true);
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auto tx2 = maybe_tx2.get();
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EXPECT_EQ(tx2.vin.size(), 0);
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EXPECT_EQ(tx2.vout.size(), 0);
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EXPECT_EQ(tx2.vjoinsplit.size(), 0);
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EXPECT_EQ(tx2.vShieldedSpend.size(), 1);
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EXPECT_EQ(tx2.vShieldedOutput.size(), 2);
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EXPECT_EQ(tx2.valueBalance, 10000);
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EXPECT_TRUE(ContextualCheckTransaction(0,tx2, state, 3, 0));
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EXPECT_EQ(state.GetRejectReason(), "");
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// Revert to default
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UpdateNetworkUpgradeParameters(Consensus::UPGRADE_SAPLING, Consensus::NetworkUpgrade::NO_ACTIVATION_HEIGHT);
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UpdateNetworkUpgradeParameters(Consensus::UPGRADE_OVERWINTER, Consensus::NetworkUpgrade::NO_ACTIVATION_HEIGHT);
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}
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TEST(TransactionBuilder, ThrowsOnTransparentInputWithoutKeyStore)
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{
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auto consensusParams = Params().GetConsensus();
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auto builder = TransactionBuilder(consensusParams, 1);
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ASSERT_THROW(builder.AddTransparentInput(COutPoint(), CScript(), 1), std::runtime_error);
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}
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TEST(TransactionBuilder, RejectsInvalidTransparentOutput)
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{
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auto consensusParams = Params().GetConsensus();
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// Default CTxDestination type is an invalid address
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CTxDestination taddr;
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auto builder = TransactionBuilder(consensusParams, 1);
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EXPECT_FALSE(builder.AddTransparentOutput(taddr, 50));
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}
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TEST(TransactionBuilder, RejectsInvalidTransparentChangeAddress)
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{
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auto consensusParams = Params().GetConsensus();
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// Default CTxDestination type is an invalid address
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CTxDestination taddr;
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auto builder = TransactionBuilder(consensusParams, 1);
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EXPECT_FALSE(builder.SendChangeTo(taddr));
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}
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TEST(TransactionBuilder, FailsWithNegativeChange)
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{
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SelectParams(CBaseChainParams::REGTEST);
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UpdateNetworkUpgradeParameters(Consensus::UPGRADE_OVERWINTER, Consensus::NetworkUpgrade::ALWAYS_ACTIVE);
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UpdateNetworkUpgradeParameters(Consensus::UPGRADE_SAPLING, Consensus::NetworkUpgrade::ALWAYS_ACTIVE);
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auto consensusParams = Params().GetConsensus();
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// Generate dummy Sapling address
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auto sk = libzcash::SaplingSpendingKey::random();
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auto expsk = sk.expanded_spending_key();
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auto fvk = sk.full_viewing_key();
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auto pk = sk.default_address();
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// Set up dummy transparent address
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CBasicKeyStore keystore;
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CKey tsk = DecodeSecret(tSecretRegtest);
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keystore.AddKey(tsk);
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auto tkeyid = tsk.GetPubKey().GetID();
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auto scriptPubKey = GetScriptForDestination(tkeyid);
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CTxDestination taddr = tkeyid;
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// Generate dummy Sapling note
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libzcash::SaplingNote note(pk, 59999);
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auto cm = note.cm().value();
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SaplingMerkleTree tree;
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tree.append(cm);
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auto anchor = tree.root();
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auto witness = tree.witness();
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// Fail if there is only a Sapling output
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// 0.0005 z-ZEC out, 0.0001 t-ZEC fee
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auto builder = TransactionBuilder(consensusParams, 1);
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builder.AddSaplingOutput(fvk.ovk, pk, 50000, {});
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EXPECT_FALSE(static_cast<bool>(builder.Build()));
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// Fail if there is only a transparent output
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// 0.0005 t-ZEC out, 0.0001 t-ZEC fee
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builder = TransactionBuilder(consensusParams, 1, &keystore);
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EXPECT_TRUE(builder.AddTransparentOutput(taddr, 50000));
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EXPECT_FALSE(static_cast<bool>(builder.Build()));
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// Fails if there is insufficient input
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// 0.0005 t-ZEC out, 0.0001 t-ZEC fee, 0.00059999 z-ZEC in
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EXPECT_TRUE(builder.AddSaplingSpend(expsk, note, anchor, witness));
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EXPECT_FALSE(static_cast<bool>(builder.Build()));
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// Succeeds if there is sufficient input
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builder.AddTransparentInput(COutPoint(), scriptPubKey, 1);
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EXPECT_TRUE(static_cast<bool>(builder.Build()));
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// Revert to default
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UpdateNetworkUpgradeParameters(Consensus::UPGRADE_SAPLING, Consensus::NetworkUpgrade::NO_ACTIVATION_HEIGHT);
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UpdateNetworkUpgradeParameters(Consensus::UPGRADE_OVERWINTER, Consensus::NetworkUpgrade::NO_ACTIVATION_HEIGHT);
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}
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TEST(TransactionBuilder, ChangeOutput)
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{
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SelectParams(CBaseChainParams::REGTEST);
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UpdateNetworkUpgradeParameters(Consensus::UPGRADE_OVERWINTER, Consensus::NetworkUpgrade::ALWAYS_ACTIVE);
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UpdateNetworkUpgradeParameters(Consensus::UPGRADE_SAPLING, Consensus::NetworkUpgrade::ALWAYS_ACTIVE);
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auto consensusParams = Params().GetConsensus();
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// Generate dummy Sapling address
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auto sk = libzcash::SaplingSpendingKey::random();
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auto expsk = sk.expanded_spending_key();
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auto pk = sk.default_address();
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// Generate dummy Sapling note
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libzcash::SaplingNote note(pk, 25000);
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auto cm = note.cm().value();
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SaplingMerkleTree tree;
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tree.append(cm);
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auto anchor = tree.root();
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auto witness = tree.witness();
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// Generate change Sapling address
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auto sk2 = libzcash::SaplingSpendingKey::random();
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auto fvkOut = sk2.full_viewing_key();
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auto zChangeAddr = sk2.default_address();
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// Set up dummy transparent address
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CBasicKeyStore keystore;
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CKey tsk = DecodeSecret(tSecretRegtest);
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keystore.AddKey(tsk);
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auto tkeyid = tsk.GetPubKey().GetID();
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auto scriptPubKey = GetScriptForDestination(tkeyid);
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CTxDestination taddr = tkeyid;
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// No change address and no Sapling spends
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{
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auto builder = TransactionBuilder(consensusParams, 1, &keystore);
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builder.AddTransparentInput(COutPoint(), scriptPubKey, 25000);
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EXPECT_FALSE(static_cast<bool>(builder.Build()));
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}
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// Change to the same address as the first Sapling spend
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{
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auto builder = TransactionBuilder(consensusParams, 1, &keystore);
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builder.AddTransparentInput(COutPoint(), scriptPubKey, 25000);
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ASSERT_TRUE(builder.AddSaplingSpend(expsk, note, anchor, witness));
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auto maybe_tx = builder.Build();
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ASSERT_EQ(static_cast<bool>(maybe_tx), true);
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auto tx = maybe_tx.get();
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EXPECT_EQ(tx.vin.size(), 1);
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EXPECT_EQ(tx.vout.size(), 0);
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EXPECT_EQ(tx.vjoinsplit.size(), 0);
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EXPECT_EQ(tx.vShieldedSpend.size(), 1);
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EXPECT_EQ(tx.vShieldedOutput.size(), 1);
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EXPECT_EQ(tx.valueBalance, -15000);
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}
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// Change to a Sapling address
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{
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auto builder = TransactionBuilder(consensusParams, 1, &keystore);
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builder.AddTransparentInput(COutPoint(), scriptPubKey, 25000);
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builder.SendChangeTo(zChangeAddr, fvkOut.ovk);
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auto maybe_tx = builder.Build();
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ASSERT_EQ(static_cast<bool>(maybe_tx), true);
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auto tx = maybe_tx.get();
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EXPECT_EQ(tx.vin.size(), 1);
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EXPECT_EQ(tx.vout.size(), 0);
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EXPECT_EQ(tx.vjoinsplit.size(), 0);
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EXPECT_EQ(tx.vShieldedSpend.size(), 0);
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EXPECT_EQ(tx.vShieldedOutput.size(), 1);
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EXPECT_EQ(tx.valueBalance, -15000);
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}
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// Change to a transparent address
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{
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auto builder = TransactionBuilder(consensusParams, 1, &keystore);
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builder.AddTransparentInput(COutPoint(), scriptPubKey, 25000);
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ASSERT_TRUE(builder.SendChangeTo(taddr));
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auto maybe_tx = builder.Build();
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ASSERT_EQ(static_cast<bool>(maybe_tx), true);
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auto tx = maybe_tx.get();
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EXPECT_EQ(tx.vin.size(), 1);
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EXPECT_EQ(tx.vout.size(), 1);
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EXPECT_EQ(tx.vjoinsplit.size(), 0);
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EXPECT_EQ(tx.vShieldedSpend.size(), 0);
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EXPECT_EQ(tx.vShieldedOutput.size(), 0);
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EXPECT_EQ(tx.valueBalance, 0);
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EXPECT_EQ(tx.vout[0].nValue, 15000);
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}
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// Revert to default
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UpdateNetworkUpgradeParameters(Consensus::UPGRADE_SAPLING, Consensus::NetworkUpgrade::NO_ACTIVATION_HEIGHT);
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UpdateNetworkUpgradeParameters(Consensus::UPGRADE_OVERWINTER, Consensus::NetworkUpgrade::NO_ACTIVATION_HEIGHT);
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}
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TEST(TransactionBuilder, SetFee)
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{
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SelectParams(CBaseChainParams::REGTEST);
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UpdateNetworkUpgradeParameters(Consensus::UPGRADE_OVERWINTER, Consensus::NetworkUpgrade::ALWAYS_ACTIVE);
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UpdateNetworkUpgradeParameters(Consensus::UPGRADE_SAPLING, Consensus::NetworkUpgrade::ALWAYS_ACTIVE);
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auto consensusParams = Params().GetConsensus();
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// Generate dummy Sapling address
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auto sk = libzcash::SaplingSpendingKey::random();
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auto expsk = sk.expanded_spending_key();
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auto fvk = sk.full_viewing_key();
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auto pk = sk.default_address();
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// Generate dummy Sapling note
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libzcash::SaplingNote note(pk, 50000);
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auto cm = note.cm().value();
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SaplingMerkleTree tree;
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tree.append(cm);
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auto anchor = tree.root();
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auto witness = tree.witness();
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// Default fee
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{
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auto builder = TransactionBuilder(consensusParams, 1);
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ASSERT_TRUE(builder.AddSaplingSpend(expsk, note, anchor, witness));
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builder.AddSaplingOutput(fvk.ovk, pk, 25000, {});
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auto maybe_tx = builder.Build();
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ASSERT_EQ(static_cast<bool>(maybe_tx), true);
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auto tx = maybe_tx.get();
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EXPECT_EQ(tx.vin.size(), 0);
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EXPECT_EQ(tx.vout.size(), 0);
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EXPECT_EQ(tx.vjoinsplit.size(), 0);
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EXPECT_EQ(tx.vShieldedSpend.size(), 1);
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EXPECT_EQ(tx.vShieldedOutput.size(), 2);
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EXPECT_EQ(tx.valueBalance, 10000);
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}
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// Configured fee
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{
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auto builder = TransactionBuilder(consensusParams, 1);
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ASSERT_TRUE(builder.AddSaplingSpend(expsk, note, anchor, witness));
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builder.AddSaplingOutput(fvk.ovk, pk, 25000, {});
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builder.SetFee(20000);
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auto maybe_tx = builder.Build();
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ASSERT_EQ(static_cast<bool>(maybe_tx), true);
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auto tx = maybe_tx.get();
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EXPECT_EQ(tx.vin.size(), 0);
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EXPECT_EQ(tx.vout.size(), 0);
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EXPECT_EQ(tx.vjoinsplit.size(), 0);
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EXPECT_EQ(tx.vShieldedSpend.size(), 1);
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EXPECT_EQ(tx.vShieldedOutput.size(), 2);
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EXPECT_EQ(tx.valueBalance, 20000);
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}
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// Revert to default
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UpdateNetworkUpgradeParameters(Consensus::UPGRADE_SAPLING, Consensus::NetworkUpgrade::NO_ACTIVATION_HEIGHT);
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UpdateNetworkUpgradeParameters(Consensus::UPGRADE_OVERWINTER, Consensus::NetworkUpgrade::NO_ACTIVATION_HEIGHT);
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}
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