Package org.bitcoinj.testing

Class FakeTxBuilder

java.lang.Object

org.bitcoinj.testing.FakeTxBuilder

public class FakeTxBuilder
extends java.lang.Object

Methods for building fake transactions for unit tests. Since these methods are currently used both in the `bitcoinj-core` unit tests and in the `integration-test` subproject, they are (for now) included in the `bitcoinj-core` JAR. They should not be considered part of the API.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	FakeTxBuilder.BlockPair
static class	FakeTxBuilder.DoubleSpends

Constructor Summary

Constructors

Constructor	Description
FakeTxBuilder()

Method Summary

Modifier and Type	Method	Description
static FakeTxBuilder.BlockPair	createFakeBlock(BlockStore blockStore, int height, Transaction... transactions)	Emulates receiving a valid block that builds on top of the chain.
static FakeTxBuilder.BlockPair	createFakeBlock(BlockStore blockStore, long version, long timeSecs, int height, Transaction... transactions)	Deprecated. use createFakeBlock(BlockStore, long, Instant, int, Transaction...)
static FakeTxBuilder.BlockPair	createFakeBlock(BlockStore blockStore, long version, long timeSecs, Transaction... transactions)	Deprecated. use createFakeBlock(BlockStore, long, Instant, Transaction...)
static FakeTxBuilder.BlockPair	createFakeBlock(BlockStore blockStore, long version, java.time.Instant time, int height, Transaction... transactions)	Emulates receiving a valid block that builds on top of the chain.
static FakeTxBuilder.BlockPair	createFakeBlock(BlockStore blockStore, long version, java.time.Instant time, Transaction... transactions)	Emulates receiving a valid block that builds on top of the chain.
static FakeTxBuilder.BlockPair	createFakeBlock(BlockStore blockStore, StoredBlock previousStoredBlock, int height, Transaction... transactions)
static FakeTxBuilder.BlockPair	createFakeBlock(BlockStore blockStore, StoredBlock previousStoredBlock, long version, long timeSecs, int height, Transaction... transactions)	Deprecated. use createFakeBlock(BlockStore, StoredBlock, long, Instant, int, Transaction...)
static FakeTxBuilder.BlockPair	createFakeBlock(BlockStore blockStore, StoredBlock previousStoredBlock, long version, java.time.Instant time, int height, Transaction... transactions)	Emulates receiving a valid block
static FakeTxBuilder.BlockPair	createFakeBlock(BlockStore blockStore, Transaction... transactions)	Emulates receiving a valid block that builds on top of the chain.
static Transaction	createFakeCoinbaseTx(NetworkParameters params)	Create a fake coinbase transaction.
static FakeTxBuilder.DoubleSpends	createFakeDoubleSpendTxns(NetworkParameters params, Address to)	Creates two transactions that spend the same (fake) output.
static Transaction	createFakeTx(NetworkParameters params)	Create a fake transaction, without change.
static Transaction	createFakeTx(NetworkParameters params, Coin value, Address to)	Create a fake TX of sufficient realism to exercise the unit tests.
static Transaction[]	createFakeTx(NetworkParameters params, Coin value, Address to, Address from)	Transaction[0] is a feeder transaction, supplying BTC to Transaction[1]
static Transaction	createFakeTx(NetworkParameters params, Coin value, ECKey to)	Create a fake TX of sufficient realism to exercise the unit tests.
static Transaction	createFakeTxWithChangeAddress(NetworkParameters params, Coin value, Address to, Address changeOutput)	Create a fake TX of sufficient realism to exercise the unit tests.
static Transaction	createFakeTxWithoutChange(NetworkParameters params, TransactionOutput output)	Create a fake transaction, without change.
static Transaction	createFakeTxWithoutChangeAddress(NetworkParameters params, Coin value, Address to)	Create a fake TX for unit tests, for use with unit tests that need greater control.
static Block	makeSolvedTestBlock(Block prev, Address to, Transaction... transactions)
static Block	makeSolvedTestBlock(Block prev, Transaction... transactions)
static Block	makeSolvedTestBlock(BlockStore blockStore, Address coinsTo)
static Transaction	roundTripTransaction(NetworkParameters params, Transaction tx)	Roundtrip a transaction so that it appears as if it has just come from the wire

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FakeTxBuilder

public FakeTxBuilder()

Method Detail

createFakeTx

public static Transaction createFakeTx(NetworkParameters params)

Create a fake transaction, without change.

createFakeTxWithoutChange

public static Transaction createFakeTxWithoutChange(NetworkParameters params,
                                                    TransactionOutput output)

Create a fake transaction, without change.

createFakeCoinbaseTx

public static Transaction createFakeCoinbaseTx(NetworkParameters params)

Create a fake coinbase transaction.

createFakeTxWithChangeAddress

public static Transaction createFakeTxWithChangeAddress(NetworkParameters params,
                                                        Coin value,
                                                        Address to,
                                                        Address changeOutput)

Create a fake TX of sufficient realism to exercise the unit tests. Two outputs, one to us, one to somewhere else to simulate change. There is one random input.

createFakeTxWithoutChangeAddress

public static Transaction createFakeTxWithoutChangeAddress(NetworkParameters params,
                                                           Coin value,
                                                           Address to)

Create a fake TX for unit tests, for use with unit tests that need greater control. One outputs, 2 random inputs, split randomly to create randomness.

createFakeTx

public static Transaction createFakeTx(NetworkParameters params,
                                       Coin value,
                                       Address to)

Create a fake TX of sufficient realism to exercise the unit tests. Two outputs, one to us, one to somewhere else to simulate change. There is one random input.

createFakeTx

public static Transaction createFakeTx(NetworkParameters params,
                                       Coin value,
                                       ECKey to)

Create a fake TX of sufficient realism to exercise the unit tests. Two outputs, one to us, one to somewhere else to simulate change. There is one random input.

createFakeTx

public static Transaction[] createFakeTx(NetworkParameters params,
                                         Coin value,
                                         Address to,
                                         Address from)

Transaction[0] is a feeder transaction, supplying BTC to Transaction[1]

roundTripTransaction

public static Transaction roundTripTransaction(NetworkParameters params,
                                               Transaction tx)

Roundtrip a transaction so that it appears as if it has just come from the wire

createFakeDoubleSpendTxns

public static FakeTxBuilder.DoubleSpends createFakeDoubleSpendTxns(NetworkParameters params,
                                                                   Address to)

Creates two transactions that spend the same (fake) output. t1 spends to "to". t2 spends somewhere else. The fake output goes to the same address as t2.

createFakeBlock

public static FakeTxBuilder.BlockPair createFakeBlock(BlockStore blockStore,
                                                      long version,
                                                      java.time.Instant time,
                                                      Transaction... transactions)

Emulates receiving a valid block that builds on top of the chain.

createFakeBlock

@Deprecated
public static FakeTxBuilder.BlockPair createFakeBlock(BlockStore blockStore,
                                                      long version,
                                                      long timeSecs,
                                                      Transaction... transactions)

Deprecated.

use createFakeBlock(BlockStore, long, Instant, Transaction...)

createFakeBlock

public static FakeTxBuilder.BlockPair createFakeBlock(BlockStore blockStore,
                                                      StoredBlock previousStoredBlock,
                                                      long version,
                                                      java.time.Instant time,
                                                      int height,
                                                      Transaction... transactions)

Emulates receiving a valid block

createFakeBlock

@Deprecated
public static FakeTxBuilder.BlockPair createFakeBlock(BlockStore blockStore,
                                                      StoredBlock previousStoredBlock,
                                                      long version,
                                                      long timeSecs,
                                                      int height,
                                                      Transaction... transactions)

Deprecated.

use createFakeBlock(BlockStore, StoredBlock, long, Instant, int, Transaction...)

createFakeBlock

public static FakeTxBuilder.BlockPair createFakeBlock(BlockStore blockStore,
                                                      StoredBlock previousStoredBlock,
                                                      int height,
                                                      Transaction... transactions)

createFakeBlock

public static FakeTxBuilder.BlockPair createFakeBlock(BlockStore blockStore,
                                                      long version,
                                                      java.time.Instant time,
                                                      int height,
                                                      Transaction... transactions)

Emulates receiving a valid block that builds on top of the chain.

createFakeBlock

@Deprecated
public static FakeTxBuilder.BlockPair createFakeBlock(BlockStore blockStore,
                                                      long version,
                                                      long timeSecs,
                                                      int height,
                                                      Transaction... transactions)

Deprecated.

use createFakeBlock(BlockStore, long, Instant, int, Transaction...)

createFakeBlock

public static FakeTxBuilder.BlockPair createFakeBlock(BlockStore blockStore,
                                                      int height,
                                                      Transaction... transactions)

Emulates receiving a valid block that builds on top of the chain.

createFakeBlock

public static FakeTxBuilder.BlockPair createFakeBlock(BlockStore blockStore,
                                                      Transaction... transactions)

Emulates receiving a valid block that builds on top of the chain.

makeSolvedTestBlock

public static Block makeSolvedTestBlock(BlockStore blockStore,
                                        Address coinsTo)
                                 throws BlockStoreException

Throws:

BlockStoreException

makeSolvedTestBlock

public static Block makeSolvedTestBlock(Block prev,
                                        Transaction... transactions)
                                 throws BlockStoreException

Throws:

BlockStoreException

makeSolvedTestBlock

public static Block makeSolvedTestBlock(Block prev,
                                        Address to,
                                        Transaction... transactions)
                                 throws BlockStoreException

Throws:

BlockStoreException