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TransactionBuilder: Make fee configurable

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This commit is contained in:
Jack Grigg
2018-07-30 12:52:48 +01:00
parent 45c0d1ec84
commit a8dd4b0cf1
3 changed files with 69 additions and 3 deletions
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61
src/gtest/test_transaction_builder.cpp
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@@ -272,3 +272,64 @@ TEST(TransactionBuilder, ChangeOutput)
UpdateNetworkUpgradeParameters(Consensus::UPGRADE_SAPLING, Consensus::NetworkUpgrade::NO_ACTIVATION_HEIGHT);
UpdateNetworkUpgradeParameters(Consensus::UPGRADE_OVERWINTER, Consensus::NetworkUpgrade::NO_ACTIVATION_HEIGHT);
}
TEST(TransactionBuilder, SetFee)
{
SelectParams(CBaseChainParams::REGTEST);
UpdateNetworkUpgradeParameters(Consensus::UPGRADE_OVERWINTER, Consensus::NetworkUpgrade::ALWAYS_ACTIVE);
UpdateNetworkUpgradeParameters(Consensus::UPGRADE_SAPLING, Consensus::NetworkUpgrade::ALWAYS_ACTIVE);
auto consensusParams = Params().GetConsensus();
// Generate dummy Sapling address
auto sk = libzcash::SaplingSpendingKey::random();
auto xsk = sk.expanded_spending_key();
auto fvk = sk.full_viewing_key();
auto pk = sk.default_address();
// Generate dummy Sapling note
libzcash::SaplingNote note(pk, 50000);
auto cm = note.cm().value();
ZCSaplingIncrementalMerkleTree tree;
tree.append(cm);
auto anchor = tree.root();
auto witness = tree.witness();
// Default fee
{
auto builder = TransactionBuilder(consensusParams, 1);
ASSERT_TRUE(builder.AddSaplingSpend(xsk, note, anchor, witness));
builder.AddSaplingOutput(fvk, pk, 25000, {});
auto maybe_tx = builder.Build();
ASSERT_EQ(static_cast<bool>(maybe_tx), true);
auto tx = maybe_tx.get();
EXPECT_EQ(tx.vin.size(), 0);
EXPECT_EQ(tx.vout.size(), 0);
EXPECT_EQ(tx.vjoinsplit.size(), 0);
EXPECT_EQ(tx.vShieldedSpend.size(), 1);
EXPECT_EQ(tx.vShieldedOutput.size(), 2);
EXPECT_EQ(tx.valueBalance, 10000);
}
// Configured fee
{
auto builder = TransactionBuilder(consensusParams, 1);
ASSERT_TRUE(builder.AddSaplingSpend(xsk, note, anchor, witness));
builder.AddSaplingOutput(fvk, pk, 25000, {});
builder.SetFee(20000);
auto maybe_tx = builder.Build();
ASSERT_EQ(static_cast<bool>(maybe_tx), true);
auto tx = maybe_tx.get();
EXPECT_EQ(tx.vin.size(), 0);
EXPECT_EQ(tx.vout.size(), 0);
EXPECT_EQ(tx.vjoinsplit.size(), 0);
EXPECT_EQ(tx.vShieldedSpend.size(), 1);
EXPECT_EQ(tx.vShieldedOutput.size(), 2);
EXPECT_EQ(tx.valueBalance, 20000);
}
// Revert to default
UpdateNetworkUpgradeParameters(Consensus::UPGRADE_SAPLING, Consensus::NetworkUpgrade::NO_ACTIVATION_HEIGHT);
UpdateNetworkUpgradeParameters(Consensus::UPGRADE_OVERWINTER, Consensus::NetworkUpgrade::NO_ACTIVATION_HEIGHT);
}