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Merge pull request #291 from rsksmart/refactor-powhsm-tests
Refactor ReleaseCreationInformationGetter and PowHSMSignerMessage tests
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src/test/java/co/rsk/federate/bitcoin/BtcTransactionBuilder.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,112 @@ | ||
| package co.rsk.federate.bitcoin; | ||
|
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| import co.rsk.bitcoinj.core.Address; | ||
| import co.rsk.bitcoinj.core.BtcTransaction; | ||
| import co.rsk.bitcoinj.core.Coin; | ||
| import co.rsk.bitcoinj.core.NetworkParameters; | ||
| import co.rsk.bitcoinj.core.TransactionInput; | ||
| import co.rsk.bitcoinj.core.TransactionOutPoint; | ||
| import co.rsk.bitcoinj.core.TransactionOutput; | ||
| import co.rsk.bitcoinj.core.TransactionWitness; | ||
| import co.rsk.bitcoinj.script.Script; | ||
| import java.util.ArrayList; | ||
| import java.util.HashMap; | ||
| import java.util.List; | ||
| import java.util.Map; | ||
|
|
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| public final class BtcTransactionBuilder { | ||
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| private NetworkParameters networkParameters = NetworkParameters.fromID(NetworkParameters.ID_MAINNET); | ||
| private final Map<Integer, TransactionWitness> transactionWitnesses = new HashMap<>(); | ||
| private final List<TransactionInput> inputs = new ArrayList<>(); | ||
| private final List<TransactionOutput> outputs = new ArrayList<>(); | ||
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| public InputBuilder createInputBuilder() { | ||
| return new InputBuilder(); | ||
| } | ||
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| public BtcTransactionBuilder withNetworkParameters(NetworkParameters networkParameters) { | ||
| this.networkParameters = networkParameters; | ||
| return this; | ||
| } | ||
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| public BtcTransactionBuilder withInput(TransactionInput transactionInput) { | ||
| inputs.add(transactionInput); | ||
| return this; | ||
| } | ||
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| public BtcTransactionBuilder withInputFromOutput(TransactionOutput transactionOutput) { | ||
| inputs.add(new InputBuilder().withAmount(transactionOutput.getValue()).withOutpointIndex( | ||
| transactionOutput.getIndex()).build()); | ||
| return this; | ||
| } | ||
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| public BtcTransactionBuilder withWitness(int inputIndex, | ||
| TransactionWitness transactionWitness) { | ||
| transactionWitnesses.put(inputIndex, transactionWitness); | ||
| return this; | ||
| } | ||
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| public BtcTransactionBuilder withOutput(Coin amount, Address address) { | ||
| outputs.add( | ||
| new TransactionOutput(networkParameters, null, amount, address) | ||
| ); | ||
| return this; | ||
| } | ||
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| public BtcTransaction build() { | ||
| BtcTransaction btcTransaction = new BtcTransaction(networkParameters); | ||
| addInputs(btcTransaction); | ||
| addOutputs(btcTransaction); | ||
| return btcTransaction; | ||
| } | ||
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| private void addInputs(BtcTransaction btcTransaction) { | ||
| inputs.forEach(transactionInput -> { | ||
| int inputIndex = btcTransaction.getInputs().size(); | ||
| btcTransaction.addInput(transactionInput); | ||
| if (transactionWitnesses.containsKey(inputIndex)) { | ||
| btcTransaction.setWitness(inputIndex, transactionWitnesses.get(inputIndex)); | ||
| } | ||
| }); | ||
| } | ||
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| private void addOutputs(BtcTransaction btcTransaction) { | ||
| outputs.forEach(btcTransaction::addOutput); | ||
| } | ||
|
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| public class InputBuilder { | ||
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| private Coin amount; | ||
| private Script scriptSig; | ||
| private int outpointIndex = 0; | ||
|
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| private InputBuilder() { } | ||
|
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| public InputBuilder withAmount(Coin amount) { | ||
| this.amount = amount; | ||
| return this; | ||
| } | ||
|
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| public InputBuilder withScriptSig(Script scriptSig) { | ||
| this.scriptSig = scriptSig; | ||
| return this; | ||
| } | ||
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| public InputBuilder withOutpointIndex(int outpointIndex) { | ||
| this.outpointIndex = outpointIndex; | ||
| return this; | ||
| } | ||
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| public TransactionInput build() { | ||
| TransactionOutPoint transactionOutpoint = new TransactionOutPoint(networkParameters, | ||
| outpointIndex, | ||
| BitcoinTestUtils.createHash(outpointIndex)); | ||
| TransactionInput transactionInput = new TransactionInput( | ||
| networkParameters, null, new byte[]{}, transactionOutpoint, amount | ||
| ); | ||
| transactionInput.setScriptSig(scriptSig); | ||
| return transactionInput; | ||
| } | ||
| } | ||
| } |
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