mirror of
https://github.com/kaspanet/kaspad.git
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309 lines
13 KiB
Go
309 lines
13 KiB
Go
package consensus_test
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import (
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"errors"
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"github.com/kaspanet/kaspad/domain/consensus"
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"github.com/kaspanet/kaspad/domain/consensus/model"
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"github.com/kaspanet/kaspad/domain/consensus/model/externalapi"
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"github.com/kaspanet/kaspad/domain/consensus/ruleerrors"
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"github.com/kaspanet/kaspad/domain/consensus/utils/consensushashing"
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"github.com/kaspanet/kaspad/domain/consensus/utils/constants"
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"github.com/kaspanet/kaspad/domain/consensus/utils/testutils"
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"github.com/kaspanet/kaspad/domain/consensus/utils/transactionhelper"
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"github.com/kaspanet/kaspad/domain/consensus/utils/txscript"
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"testing"
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)
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// TestCheckLockTimeVerifyConditionedByBlockHeight verifies that an output locked by the CLTV script is spendable only after
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// the block height reached the set target.
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func TestCheckLockTimeVerifyConditionedByBlockHeight(t *testing.T) {
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testutils.ForAllNets(t, true, func(t *testing.T, consensusConfig *consensus.Config) {
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consensusConfig.BlockCoinbaseMaturity = 0
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factory := consensus.NewFactory()
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testConsensus, teardown, err := factory.NewTestConsensus(consensusConfig, "TestCheckLockTimeVerifyConditionedByBlockHeight")
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if err != nil {
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t.Fatalf("Error setting up consensus: %+v", err)
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}
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defer teardown(false)
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currentBlockHeight := int64(0)
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blockAHash, _, err := testConsensus.AddBlock([]*externalapi.DomainHash{testConsensus.DAGParams().GenesisHash}, nil, nil)
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if err != nil {
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t.Fatalf("Error creating blockA: %v", err)
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}
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currentBlockHeight++
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blockBHash, _, err := testConsensus.AddBlock([]*externalapi.DomainHash{blockAHash}, nil, nil)
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if err != nil {
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t.Fatalf("Error creating blockB: %v", err)
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}
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currentBlockHeight++
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blockCHash, _, err := testConsensus.AddBlock([]*externalapi.DomainHash{blockBHash}, nil, nil)
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if err != nil {
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t.Fatalf("Error creating blockC: %v", err)
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}
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currentBlockHeight++
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blockC, err := testConsensus.GetBlock(blockCHash)
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if err != nil {
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t.Fatalf("Failed getting blockC: %v", err)
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}
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fees := uint64(1)
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fundingTransaction, err := testutils.CreateTransaction(blockC.Transactions[transactionhelper.CoinbaseTransactionIndex], fees)
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if err != nil {
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t.Fatalf("Error creating fundingTransaction: %v", err)
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}
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blockDHash, _, err := testConsensus.AddBlock([]*externalapi.DomainHash{blockCHash}, nil,
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[]*externalapi.DomainTransaction{fundingTransaction})
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if err != nil {
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t.Fatalf("Error creating blockD: %v", err)
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}
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currentBlockHeight++
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//Create a CLTV script:
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targetBlockHeight := int64(30)
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redeemScriptCLTV, err := createScriptCLTV(targetBlockHeight)
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if err != nil {
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t.Fatalf("Failed to create a script using createScriptCLTV: %v", err)
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}
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p2shScriptCLTV, err := txscript.PayToScriptHashScript(redeemScriptCLTV)
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if err != nil {
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t.Fatalf("Failed to create a pay-to-script-hash script : %v", err)
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}
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scriptPublicKeyCLTV := externalapi.ScriptPublicKey{
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Version: constants.MaxScriptPublicKeyVersion,
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Script: p2shScriptCLTV,
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}
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transactionWithLockedOutput, err := createTransactionWithLockedOutput(fundingTransaction, fees, &scriptPublicKeyCLTV)
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if err != nil {
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t.Fatalf("Error in createTransactionWithLockedOutput: %v", err)
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}
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// BlockE contains the locked output (locked by CLTV).
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// This block should be valid since CLTV script locked only the output.
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blockEHash, _, err := testConsensus.AddBlock([]*externalapi.DomainHash{blockDHash}, nil,
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[]*externalapi.DomainTransaction{transactionWithLockedOutput})
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if err != nil {
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t.Fatalf("Error creating blockE: %v", err)
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}
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currentBlockHeight++
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// Create a transaction that tries to spend the locked output.
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transactionThatSpentTheLockedOutput, err := createTransactionThatSpentTheLockedOutput(transactionWithLockedOutput,
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fees, redeemScriptCLTV, targetBlockHeight)
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if err != nil {
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t.Fatalf("Error creating transactionThatSpentTheLockedOutput: %v", err)
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}
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// Add a block that contains a transaction that spends the locked output before the time, and therefore should be failed.
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// (The block height should be x, before the output will be spendable, where x = 'targetBlockHeight' ).
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_, _, err = testConsensus.AddBlock([]*externalapi.DomainHash{blockEHash}, nil,
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[]*externalapi.DomainTransaction{transactionThatSpentTheLockedOutput})
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if err == nil || !errors.Is(err, ruleerrors.ErrUnfinalizedTx) {
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t.Fatalf("Expected block to be invalid with err: %v, instead found: %v", ruleerrors.ErrUnfinalizedTx, err)
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}
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// Add blocks to release the locked output, the block height should be 'numOfBlocksToWait'.
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tipHash := blockEHash
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numOfBlocksToAdd := targetBlockHeight - currentBlockHeight
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for i := int64(0); i < numOfBlocksToAdd; i++ {
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tipHash, _, err = testConsensus.AddBlock([]*externalapi.DomainHash{tipHash}, nil, nil)
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if err != nil {
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t.Fatalf("Error creating tip: %v", err)
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}
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}
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// Tries to spend the output that should be no longer locked
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_, _, err = testConsensus.AddBlock([]*externalapi.DomainHash{tipHash}, nil,
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[]*externalapi.DomainTransaction{transactionThatSpentTheLockedOutput})
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if err != nil {
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t.Fatalf("The block should be valid since the output is not locked anymore. but got an error: %v", err)
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}
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})
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}
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// TestCheckLockTimeVerifyConditionedByAbsoluteTime verifies that an output locked by the CLTV script is spendable only after
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// the time is reached to the set target (compared to the past median time)).
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func TestCheckLockTimeVerifyConditionedByAbsoluteTime(t *testing.T) {
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testutils.ForAllNets(t, true, func(t *testing.T, consensusConfig *consensus.Config) {
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consensusConfig.BlockCoinbaseMaturity = 0
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factory := consensus.NewFactory()
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testConsensus, teardown, err := factory.NewTestConsensus(consensusConfig, "TestCheckLockTimeVerifyConditionedByAbsoluteTime")
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if err != nil {
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t.Fatalf("Error setting up consensus: %+v", err)
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}
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defer teardown(false)
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blockAHash, _, err := testConsensus.AddBlock([]*externalapi.DomainHash{testConsensus.DAGParams().GenesisHash}, nil, nil)
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if err != nil {
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t.Fatalf("Error creating blockA: %v", err)
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}
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blockBHash, _, err := testConsensus.AddBlock([]*externalapi.DomainHash{blockAHash}, nil, nil)
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if err != nil {
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t.Fatalf("Error creating blockB: %v", err)
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}
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blockCHash, _, err := testConsensus.AddBlock([]*externalapi.DomainHash{blockBHash}, nil, nil)
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if err != nil {
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t.Fatalf("Error creating blockC: %v", err)
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}
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blockC, err := testConsensus.GetBlock(blockCHash)
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if err != nil {
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t.Fatalf("Failed getting blockC: %v", err)
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}
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fees := uint64(1)
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fundingTransaction, err := testutils.CreateTransaction(blockC.Transactions[transactionhelper.CoinbaseTransactionIndex], fees)
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if err != nil {
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t.Fatalf("Error creating fundingTransaction: %v", err)
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}
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blockDHash, _, err := testConsensus.AddBlock([]*externalapi.DomainHash{blockCHash}, nil,
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[]*externalapi.DomainTransaction{fundingTransaction})
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if err != nil {
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t.Fatalf("Error creating blockD: %v", err)
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}
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blockD, err := testConsensus.GetBlock(blockDHash)
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if err != nil {
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t.Fatalf("Failed getting blockD: %v", err)
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}
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//Create a CLTV script:
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timeToWait := int64(12 * 1000)
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lockTimeTarget := blockD.Header.TimeInMilliseconds() + timeToWait
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redeemScriptCLTV, err := createScriptCLTV(lockTimeTarget)
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if err != nil {
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t.Fatalf("Failed to create a script using createScriptCLTV: %v", err)
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}
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p2shScriptCLTV, err := txscript.PayToScriptHashScript(redeemScriptCLTV)
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if err != nil {
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t.Fatalf("Failed to create a pay-to-script-hash script : %v", err)
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}
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scriptPublicKeyCLTV := externalapi.ScriptPublicKey{
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Version: constants.MaxScriptPublicKeyVersion,
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Script: p2shScriptCLTV,
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}
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transactionWithLockedOutput, err := createTransactionWithLockedOutput(fundingTransaction, fees, &scriptPublicKeyCLTV)
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if err != nil {
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t.Fatalf("Error in createTransactionWithLockedOutput: %v", err)
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}
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// BlockE contains the locked output (locked by CLTV).
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// This block should be valid since CLTV script locked only the output.
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blockEHash, _, err := testConsensus.AddBlock([]*externalapi.DomainHash{blockDHash}, nil,
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[]*externalapi.DomainTransaction{transactionWithLockedOutput})
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if err != nil {
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t.Fatalf("Error creating blockE: %v", err)
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}
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blockE, err := testConsensus.GetBlock(blockEHash)
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if err != nil {
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t.Fatalf("Failed getting blockE: %v", err)
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}
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// Create a transaction that tries to spend the locked output.
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transactionThatSpentTheLockedOutput, err := createTransactionThatSpentTheLockedOutput(transactionWithLockedOutput,
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fees, redeemScriptCLTV, lockTimeTarget)
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if err != nil {
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t.Fatalf("Error creating transactionThatSpentTheLockedOutput: %v", err)
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}
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// Add a block that contains a transaction that tries to spend the locked output before the time, and therefore should be failed.
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_, _, err = testConsensus.AddBlock([]*externalapi.DomainHash{blockEHash}, nil,
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[]*externalapi.DomainTransaction{transactionThatSpentTheLockedOutput})
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if err == nil || !errors.Is(err, ruleerrors.ErrUnfinalizedTx) {
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t.Fatalf("Expected block to be invalid with err: %v, instead found: %v", ruleerrors.ErrUnfinalizedTx, err)
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}
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emptyCoinbase := externalapi.DomainCoinbaseData{
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ScriptPublicKey: &externalapi.ScriptPublicKey{
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Script: nil,
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Version: 0,
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},
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}
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var tipHash *externalapi.DomainHash
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timeStampBlockE := blockE.Header.TimeInMilliseconds()
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stagingArea := model.NewStagingArea()
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// Make sure the time limitation has passed.
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for i := int64(0); ; i++ {
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tipBlock, err := testConsensus.BuildBlock(&emptyCoinbase, nil)
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if err != nil {
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t.Fatalf("Error creating tip using BuildBlock: %v", err)
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}
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blockHeader := tipBlock.Header.ToMutable()
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blockHeader.SetTimeInMilliseconds(timeStampBlockE + i*1000)
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tipBlock.Header = blockHeader.ToImmutable()
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_, err = testConsensus.ValidateAndInsertBlock(tipBlock)
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if err != nil {
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t.Fatalf("Error validating and inserting tip block: %v", err)
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}
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tipHash = consensushashing.BlockHash(tipBlock)
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pastMedianTime, err := testConsensus.PastMedianTimeManager().PastMedianTime(stagingArea, tipHash)
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if err != nil {
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t.Fatalf("Failed getting pastMedianTime: %v", err)
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}
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if pastMedianTime > lockTimeTarget {
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break
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}
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}
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// Tries to spend the output that should be no longer locked
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_, _, err = testConsensus.AddBlock([]*externalapi.DomainHash{tipHash}, nil,
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[]*externalapi.DomainTransaction{transactionThatSpentTheLockedOutput})
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if err != nil {
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t.Fatalf("The block should be valid since the output is not locked anymore. but got an error: %v", err)
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}
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})
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}
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func createScriptCLTV(blockHeightOrAbsoluteTimeTarget int64) ([]byte, error) {
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scriptBuilder := txscript.NewScriptBuilder()
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scriptBuilder.AddInt64(blockHeightOrAbsoluteTimeTarget)
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scriptBuilder.AddOp(txscript.OpCheckLockTimeVerify)
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scriptBuilder.AddOp(txscript.OpTrue)
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return scriptBuilder.Script()
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}
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func createTransactionWithLockedOutput(txToSpend *externalapi.DomainTransaction, fee uint64,
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scriptPublicKeyCLTV *externalapi.ScriptPublicKey) (*externalapi.DomainTransaction, error) {
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_, redeemScript := testutils.OpTrueScript()
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signatureScript, err := txscript.PayToScriptHashSignatureScript(redeemScript, nil)
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if err != nil {
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return nil, err
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}
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input := &externalapi.DomainTransactionInput{
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PreviousOutpoint: externalapi.DomainOutpoint{
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TransactionID: *consensushashing.TransactionID(txToSpend),
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Index: 0,
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},
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SignatureScript: signatureScript,
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Sequence: constants.MaxTxInSequenceNum,
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}
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output := &externalapi.DomainTransactionOutput{
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ScriptPublicKey: scriptPublicKeyCLTV,
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Value: txToSpend.Outputs[0].Value - fee,
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}
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return &externalapi.DomainTransaction{
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Version: constants.MaxTransactionVersion,
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Inputs: []*externalapi.DomainTransactionInput{input},
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Outputs: []*externalapi.DomainTransactionOutput{output},
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Payload: []byte{},
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}, nil
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}
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func createTransactionThatSpentTheLockedOutput(txToSpend *externalapi.DomainTransaction, fee uint64,
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redeemScript []byte, lockTime int64) (*externalapi.DomainTransaction, error) {
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signatureScript, err := txscript.PayToScriptHashSignatureScript(redeemScript, []byte{})
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if err != nil {
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return nil, err
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}
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scriptPublicKeyOutput, _ := testutils.OpTrueScript()
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input := &externalapi.DomainTransactionInput{
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PreviousOutpoint: externalapi.DomainOutpoint{
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TransactionID: *consensushashing.TransactionID(txToSpend),
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Index: 0,
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},
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SignatureScript: signatureScript,
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Sequence: 0xffffffff - 1,
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}
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output := &externalapi.DomainTransactionOutput{
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ScriptPublicKey: scriptPublicKeyOutput,
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Value: txToSpend.Outputs[0].Value - fee,
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}
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return &externalapi.DomainTransaction{
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Version: constants.MaxTransactionVersion,
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Inputs: []*externalapi.DomainTransactionInput{input},
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Outputs: []*externalapi.DomainTransactionOutput{output},
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Payload: []byte{},
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LockTime: uint64(lockTime), // less than 500 million interpreted as a block height, and above as an UNIX timestamp.
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}, nil
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}
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