@Test
public void test1() {
byte[] result = HashUtil.sha3("horse".getBytes());
assertEquals(
"c87f65ff3f271bf5dc8643484f66b200109caffe4bf98c4cb393dc35740b28c0",
Hex.toHexString(result));
result = HashUtil.sha3("cow".getBytes());
assertEquals(
"c85ef7d79691fe79573b1a7064c19c1a9819ebdbd1faaab1a8ec92344438aaf4",
Hex.toHexString(result));
}
// sha3_memSizeQuadraticCost32_zeroSize
@Ignore // TODO #POC9
@Test // contract call quadratic memory use
public void test10() {
int expectedGas = 313;
DataWord key1 = new DataWord(999);
DataWord value1 = new DataWord(3);
// Set contract into Database
String callerAddr = "cd1722f3947def4cf144679da39c4c32bdc35681";
String contractAddr = "0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6";
String code = "600061040020600055";
byte[] contractAddrB = Hex.decode(contractAddr);
byte[] callerAddrB = Hex.decode(callerAddr);
byte[] codeB = Hex.decode(code);
byte[] codeKey = HashUtil.sha3(codeB);
AccountState accountState = new AccountState(SystemProperties.getDefault());
accountState.setCodeHash(codeKey);
ProgramInvokeMockImpl pi = new ProgramInvokeMockImpl();
pi.setOwnerAddress(contractAddrB);
Repository repository = pi.getRepository();
repository.createAccount(callerAddrB);
repository.addBalance(
callerAddrB,
new BigInteger(
"115792089237316195423570985008687907853269984665640564039457584007913129639935"));
repository.createAccount(contractAddrB);
repository.saveCode(contractAddrB, codeB);
repository.addStorageRow(contractAddrB, key1, value1);
// Play the program
VM vm = new VM();
Program program = new Program(codeB, pi);
try {
while (!program.isStopped()) vm.step(program);
} catch (RuntimeException e) {
program.setRuntimeFailure(e);
}
System.out.println();
System.out.println("============ Results ============");
BigInteger balance = repository.getBalance(callerAddrB);
System.out.println("*** Used gas: " + program.getResult().getGasUsed());
System.out.println("*** Contract Balance: " + balance);
// todo: assert caller balance after contract exec
repository.close();
assertEquals(expectedGas, program.getResult().getGasUsed());
}
@Test /* real tx hash calc */
public void test7() {
String txRaw =
"F89D80809400000000000000000000000000000000000000008609184E72A000822710B3606956330C0D630000003359366000530A0D630000003359602060005301356000533557604060005301600054630000000C5884336069571CA07F6EB94576346488C6253197BDE6A7E59DDC36F2773672C849402AA9C402C3C4A06D254E662BF7450DD8D835160CBB053463FED0B53F2CDD7F3EA8731919C8E8CC";
byte[] txHashB = HashUtil.sha3(Hex.decode(txRaw));
String txHash = Hex.toHexString(txHashB);
assertEquals("4b7d9670a92bf120d5b43400543b69304a14d767cf836a7f6abff4edde092895", txHash);
}
@Test /* real block hash calc */
public void test8() {
String blockRaw =
"F885F8818080A01DCC4DE8DEC75D7AAB85B567B6CCD41AD312451B948A7413F0A142FD40D49347940000000000000000000000000000000000000000A0BCDDD284BF396739C224DBA0411566C891C32115FEB998A3E2B4E61F3F35582AA01DCC4DE8DEC75D7AAB85B567B6CCD41AD312451B948A7413F0A142FD40D4934783800000808080C0C0";
byte[] blockHashB = HashUtil.sha3(Hex.decode(blockRaw));
String blockHash = Hex.toHexString(blockHashB);
System.out.println(blockHash);
}
@Override
public byte[] getRootHash() {
if (root == null
|| (root instanceof byte[] && ((byte[]) root).length == 0)
|| (root instanceof String && "".equals(root))) {
return EMPTY_TRIE_HASH;
} else if (root instanceof byte[]) {
return (byte[]) this.getRoot();
} else {
Value rootValue = new Value(this.getRoot());
byte[] val = rootValue.encode();
return HashUtil.sha3(val);
}
}
@Test /* performance test */
public void test6() {
long firstTime = System.currentTimeMillis();
System.out.println(firstTime);
for (int i = 0; i < 1000; ++i) {
byte[] horseBytes = HashUtil.sha3("horse".getBytes());
byte[] addr = ECKey.fromPrivate(horseBytes).getAddress();
assertEquals("13978AEE95F38490E9769C39B2773ED763D9CD5F", Hex.toHexString(addr).toUpperCase());
}
long secondTime = System.currentTimeMillis();
System.out.println(secondTime);
System.out.println(secondTime - firstTime + " millisec");
// 1) result: ~52 address calculation every second
}
@Ignore // TODO #POC9
@Test // contract call recursive
public void test1() {
/**
* #The code will run ------------------
*
* <p>a = contract.storage[999] if a > 0: contract.storage[999] = a - 1
*
* <p># call to contract: 77045e71a7a2c50903d88e564cd72fab11e82051 send((tx.gas / 10 * 8),
* 0x77045e71a7a2c50903d88e564cd72fab11e82051, 0) else: stop
*/
int expectedGas = 436;
DataWord key1 = new DataWord(999);
DataWord value1 = new DataWord(3);
// Set contract into Database
String callerAddr = "cd2a3d9f938e13cd947ec05abc7fe734df8dd826";
String contractAddr = "77045e71a7a2c50903d88e564cd72fab11e82051";
String code =
"6103e75460005260006000511115630000004c576001600051036103e755600060006000600060007377045e71a7a2c50903d88e564cd72fab11e820516008600a5a0402f1630000004c00565b00";
byte[] contractAddrB = Hex.decode(contractAddr);
byte[] callerAddrB = Hex.decode(callerAddr);
byte[] codeB = Hex.decode(code);
byte[] codeKey = HashUtil.sha3(codeB);
AccountState accountState = new AccountState(SystemProperties.getDefault());
accountState.setCodeHash(codeKey);
ProgramInvokeMockImpl pi = new ProgramInvokeMockImpl();
pi.setOwnerAddress(contractAddrB);
Repository repository = pi.getRepository();
repository.createAccount(callerAddrB);
repository.addBalance(callerAddrB, new BigInteger("100000000000000000000"));
repository.createAccount(contractAddrB);
repository.saveCode(contractAddrB, codeB);
repository.addStorageRow(contractAddrB, key1, value1);
// Play the program
VM vm = new VM();
Program program = new Program(codeB, pi);
try {
while (!program.isStopped()) vm.step(program);
} catch (RuntimeException e) {
program.setRuntimeFailure(e);
}
System.out.println();
System.out.println("============ Results ============");
BigInteger balance = repository.getBalance(callerAddrB);
System.out.println("*** Used gas: " + program.getResult().getGasUsed());
System.out.println("*** Contract Balance: " + balance);
// todo: assert caller balance after contract exec
repository.close();
assertEquals(expectedGas, program.getResult().getGasUsed());
}
public void createContract(DataWord value, DataWord memStart, DataWord memSize) {
if (invokeData.byTestingSuite()) {
logger.info("[testing suite] - omit real create");
return;
}
// [1] FETCH THE CODE FROM THE MEMORY
ByteBuffer programCode = memoryChunk(memStart, memSize);
byte[] senderAddress = this.getOwnerAddress().getLast20Bytes();
if (logger.isInfoEnabled())
logger.info(
"creating a new contract inside contract run: [{}]", Hex.toHexString(senderAddress));
// actual gas subtract
int gas = this.getGas().intValue();
this.spendGas(gas, "internal call");
// [2] CREATE THE CONTRACT ADDRESS
byte[] nonce = result.getRepository().getNonce(senderAddress).toByteArray();
byte[] newAddress = HashUtil.calcNewAddr(this.getOwnerAddress().getLast20Bytes(), nonce);
result.getRepository().createAccount(newAddress);
// [3] UPDATE THE NONCE
// (THIS STAGE IS NOT REVERTED BY ANY EXCEPTION)
result.getRepository().increaseNonce(senderAddress);
// [4] TRANSFER THE BALANCE
BigInteger endowment = value.value();
BigInteger senderBalance = result.getRepository().getBalance(senderAddress);
if (senderBalance.compareTo(endowment) < 0) {
stackPushZero();
return;
}
result.getRepository().addBalance(senderAddress, endowment.negate());
result.getRepository().addBalance(newAddress, endowment);
RepositoryImpl trackRepositoryImpl = result.getRepository().getTrack();
trackRepositoryImpl.startTracking();
// [5] COOK THE INVOKE AND EXECUTE
ProgramInvoke programInvoke =
ProgramInvokeFactory.createProgramInvoke(
this,
new DataWord(newAddress),
DataWord.ZERO,
new DataWord(gas),
BigInteger.ZERO,
null,
trackRepositoryImpl,
this.invokeData.getCallDeep() + 1);
VM vm = new VM();
Program program = new Program(programCode.array(), programInvoke);
vm.play(program);
ProgramResult result = program.getResult();
this.result.addDeleteAccounts(result.getDeleteAccounts());
if (result.getException() != null
&& result.getException() instanceof Program.OutOfGasException) {
logger.info(
"contract run halted by OutOfGas: new contract init ={}", Hex.toHexString(newAddress));
trackRepositoryImpl.rollback();
stackPushZero();
return;
}
// 4. CREATE THE CONTRACT OUT OF RETURN
byte[] code = result.getHReturn().array();
trackRepositoryImpl.saveCode(newAddress, code);
// IN SUCCESS PUSH THE ADDRESS INTO THE STACK
stackPush(new DataWord(newAddress));
trackRepositoryImpl.commit();
// 5. REFUND THE REMAIN GAS
long refundGas = gas - result.getGasUsed();
if (refundGas > 0) {
this.refundGas(refundGas, "remain gas from the internal call");
if (logger.isInfoEnabled()) {
logger.info(
"The remaining gas is refunded, account: [ {} ], gas: [ {} ] ",
Hex.toHexString(this.getOwnerAddress().getLast20Bytes()),
refundGas);
}
}
}
public byte[] getContractAddress() {
if (!isContractCreation()) return null;
return HashUtil.calcNewAddr(this.getSender(), this.getNonce());
}
public byte[] getRawHash() {
if (!parsed) rlpParse();
byte[] plainMsg = this.getEncodedRaw();
return HashUtil.sha3(plainMsg);
}
@Test
public void test5() {
byte[] horseBytes = HashUtil.sha3("horse".getBytes());
byte[] addr = ECKey.fromPrivate(horseBytes).getAddress();
assertEquals("13978AEE95F38490E9769C39B2773ED763D9CD5F", Hex.toHexString(addr).toUpperCase());
}
@Test
public void test4() {
byte[] cowBytes = HashUtil.sha3("cow".getBytes());
byte[] addr = ECKey.fromPrivate(cowBytes).getAddress();
assertEquals("CD2A3D9F938E13CD947EC05ABC7FE734DF8DD826", Hex.toHexString(addr).toUpperCase());
}