Examples with Uint128FVM org.aion.zero.impl.precompiled.encoding.Uint128FVM used on opensource projects

Example 1 with Uint128FVM

use of org.aion.zero.impl.precompiled.encoding.Uint128FVM in project aion by aionnetwork.

the class TokenBridgeContractTest method testTransferRingLocked.

// william test
@Test
public void testTransferRingLocked() {
    // override defaults
    PrecompiledTransactionContext initializationContext = context(OWNER_ADDR, CONTRACT_ADDR);
    this.contract = new TokenBridgeContract(initializationContext, ExternalStateForTests.usingRepository(this.repository), OWNER_ADDR, CONTRACT_ADDR);
    this.connector = this.contract.getConnector();
    ListFVM encodingList = new ListFVM();
    for (ECKey k : members) {
        encodingList.add(new AddressFVM(k.getAddress()));
    }
    // not initializing the ring
    // set relayer
    byte[] callPayload = new AbiEncoder(BridgeFuncSig.SIG_SET_RELAYER.getSignature(), new AddressFVM(members[0].getAddress())).encodeBytes();
    PrecompiledTransactionResult transferResult = this.contract.execute(callPayload, DEFAULT_NRG);
    assertTrue(transferResult.getStatus().isSuccess());
    // override defaults
    this.repository.addBalance(CONTRACT_ADDR, BigInteger.TEN);
    // we create a new token bridge contract here because we
    // need to change the execution context
    PrecompiledTransactionContext submitBundleContext = context(new AionAddress(members[0].getAddress()), CONTRACT_ADDR);
    this.contract = new TokenBridgeContract(submitBundleContext, ExternalStateForTests.usingRepository(this.repository), OWNER_ADDR, CONTRACT_ADDR);
    this.connector = this.contract.getConnector();
    // assemble the payload
    byte[] blockHash = HashUtil.h256("blockHash".getBytes());
    BridgeTransfer[] transfers = new BridgeTransfer[5];
    for (int i = 0; i < 5; i++) {
        // generate a unique sourceTransactionHash for each transfer
        byte[] sourceTransactionHash = HashUtil.h256(Integer.toString(i).getBytes());
        transfers[i] = BridgeTransfer.getInstance(BigInteger.ONE, AddressSpecs.computeA0Address(HashUtil.h256(Integer.toHexString(i).getBytes())), sourceTransactionHash);
    }
    byte[] payloadHash = BridgeUtilities.computeBundleHash(blockHash, transfers);
    // ATB-4, do one assert here to check that transactionHash is not set
    assertThat(this.contract.execute(ByteUtil.merge(BridgeFuncSig.PURE_ACTION_MAP.getBytes(), payloadHash), 21000L).getReturnData()).isEqualTo(ByteUtil.EMPTY_WORD);
    byte[][] signatures = new byte[members.length][];
    int i = 0;
    for (ECKey k : members) {
        signatures[i] = k.sign(payloadHash).toBytes();
        i++;
    }
    ListFVM sourceTransactionList = new ListFVM();
    ListFVM addressList = new ListFVM();
    ListFVM uintList = new ListFVM();
    for (BridgeTransfer b : transfers) {
        sourceTransactionList.add(new AddressFVM(b.getSourceTransactionHash()));
        addressList.add(new AddressFVM(b.getRecipient()));
        uintList.add(new Uint128FVM(PrecompiledUtilities.pad(b.getTransferValue().toByteArray(), 16)));
    }
    ListFVM sigChunk1 = new ListFVM();
    ListFVM sigChunk2 = new ListFVM();
    ListFVM sigChunk3 = new ListFVM();
    for (byte[] sig : signatures) {
        sigChunk1.add(new AddressFVM(Arrays.copyOfRange(sig, 0, 32)));
        sigChunk2.add(new AddressFVM(Arrays.copyOfRange(sig, 32, 64)));
        sigChunk3.add(new AddressFVM(Arrays.copyOfRange(sig, 64, 96)));
    }
    callPayload = new AbiEncoder(BridgeFuncSig.SIG_SUBMIT_BUNDLE.getSignature(), new AddressFVM(blockHash), sourceTransactionList, addressList, uintList, sigChunk1, sigChunk2, sigChunk3).encodeBytes();
    transferResult = this.contract.execute(callPayload, DEFAULT_NRG);
    // VERIFICATION - failure
    assertThat(this.contract.execute(ByteUtil.merge(BridgeFuncSig.PURE_ACTION_MAP.getBytes(), payloadHash), 21000L).getReturnData()).isEqualTo(new byte[32]);
    assertEquals("FAILURE", transferResult.getStatus().causeOfError);
    // check that nothing has been modified from the failed transfer
    for (BridgeTransfer b : transfers) {
        assertThat(this.repository.getBalance(new AionAddress(b.getRecipient()))).isEqualTo(BigInteger.ZERO);
    }
    assertThat(this.repository.getBalance(CONTRACT_ADDR)).isEqualTo(BigInteger.valueOf(10));
    assertThat(submitBundleContext.getInternalTransactions()).isEmpty();
    assertThat(submitBundleContext.getLogs()).isEmpty();
}

Example 2 with Uint128FVM

use of org.aion.zero.impl.precompiled.encoding.Uint128FVM in project aion by aionnetwork.

the class TokenBridgeContractTest method setupForTest.

private ReturnDataFromSetup setupForTest(BridgeTransfer[] transfers, ECKey[] members) {
    // override defaults
    PrecompiledTransactionContext initializationContext = context(OWNER_ADDR, CONTRACT_ADDR);
    this.contract = new TokenBridgeContract(initializationContext, ExternalStateForTests.usingRepository(this.repository), OWNER_ADDR, CONTRACT_ADDR);
    this.connector = this.contract.getConnector();
    ListFVM encodingList = new ListFVM();
    for (ECKey k : members) {
        encodingList.add(new AddressFVM(k.getAddress()));
    }
    byte[] payload = new AbiEncoder(BridgeFuncSig.SIG_RING_INITIALIZE.getSignature(), encodingList).encodeBytes();
    PrecompiledTransactionResult result = this.contract.execute(payload, DEFAULT_NRG);
    assertTrue(result.getStatus().isSuccess());
    // set relayer
    byte[] callPayload = new AbiEncoder(BridgeFuncSig.SIG_SET_RELAYER.getSignature(), new AddressFVM(members[0].getAddress())).encodeBytes();
    PrecompiledTransactionResult transferResult = this.contract.execute(callPayload, DEFAULT_NRG);
    assertTrue(transferResult.getStatus().isSuccess());
    // override defaults
    this.repository.addBalance(CONTRACT_ADDR, BigInteger.TEN);
    // we create a new token bridge contract here because we
    // need to change the execution context
    PrecompiledTransactionContext submitBundleContext = context(new AionAddress(members[0].getAddress()), CONTRACT_ADDR);
    this.contract = new TokenBridgeContract(submitBundleContext, ExternalStateForTests.usingRepository(this.repository), OWNER_ADDR, CONTRACT_ADDR);
    this.connector = this.contract.getConnector();
    // assemble the payload
    byte[] blockHash = HashUtil.h256("blockHash".getBytes());
    byte[] payloadHash = BridgeUtilities.computeBundleHash(blockHash, transfers);
    byte[][] signatures = new byte[members.length][];
    int i = 0;
    for (ECKey k : members) {
        signatures[i] = k.sign(payloadHash).toBytes();
        i++;
    }
    ListFVM sourceTransactionList = new ListFVM();
    ListFVM addressList = new ListFVM();
    ListFVM uintList = new ListFVM();
    for (BridgeTransfer b : transfers) {
        sourceTransactionList.add(new AddressFVM(b.getSourceTransactionHash()));
        addressList.add(new AddressFVM(b.getRecipient()));
        uintList.add(new Uint128FVM(PrecompiledUtilities.pad(b.getTransferValue().toByteArray(), 16)));
    }
    ListFVM sigChunk1 = new ListFVM();
    ListFVM sigChunk2 = new ListFVM();
    ListFVM sigChunk3 = new ListFVM();
    for (byte[] sig : signatures) {
        sigChunk1.add(new AddressFVM(Arrays.copyOfRange(sig, 0, 32)));
        sigChunk2.add(new AddressFVM(Arrays.copyOfRange(sig, 32, 64)));
        sigChunk3.add(new AddressFVM(Arrays.copyOfRange(sig, 64, 96)));
    }
    callPayload = new AbiEncoder(BridgeFuncSig.SIG_SUBMIT_BUNDLE.getSignature(), new AddressFVM(blockHash), sourceTransactionList, addressList, uintList, sigChunk1, sigChunk2, sigChunk3).encodeBytes();
    return new ReturnDataFromSetup(submitBundleContext, blockHash, payloadHash, callPayload);
}

Example 3 with Uint128FVM

use of org.aion.zero.impl.precompiled.encoding.Uint128FVM in project aion by aionnetwork.

the class TokenBridgeContractTest method testTransferInsufficientValidatorSignatures.

@Test
public void testTransferInsufficientValidatorSignatures() {
    // override defaults
    PrecompiledTransactionContext initializationContext = context(OWNER_ADDR, CONTRACT_ADDR);
    this.contract = new TokenBridgeContract(initializationContext, ExternalStateForTests.usingRepository(this.repository), OWNER_ADDR, CONTRACT_ADDR);
    this.connector = this.contract.getConnector();
    ListFVM encodingList = new ListFVM();
    for (ECKey k : members) {
        encodingList.add(new AddressFVM(k.getAddress()));
    }
    byte[] payload = new AbiEncoder(BridgeFuncSig.SIG_RING_INITIALIZE.getSignature(), encodingList).encodeBytes();
    PrecompiledTransactionResult result = this.contract.execute(payload, DEFAULT_NRG);
    assertTrue(result.getStatus().isSuccess());
    // set relayer
    byte[] callPayload = new AbiEncoder(BridgeFuncSig.SIG_SET_RELAYER.getSignature(), new AddressFVM(members[0].getAddress())).encodeBytes();
    PrecompiledTransactionResult transferResult = this.contract.execute(callPayload, DEFAULT_NRG);
    assertTrue(transferResult.getStatus().isSuccess());
    // override defaults
    this.repository.addBalance(CONTRACT_ADDR, BigInteger.TEN);
    // we create a new token bridge contract here because we
    // need to change the execution context
    PrecompiledTransactionContext submitBundleContext = context(new AionAddress(members[0].getAddress()), CONTRACT_ADDR);
    this.contract = new TokenBridgeContract(submitBundleContext, ExternalStateForTests.usingRepository(this.repository), OWNER_ADDR, CONTRACT_ADDR);
    this.connector = this.contract.getConnector();
    // assemble the payload
    byte[] blockHash = HashUtil.h256("blockHash".getBytes());
    BridgeTransfer[] transfers = new BridgeTransfer[5];
    for (int i = 0; i < 5; i++) {
        // generate a unique sourceTransactionHash for each transfer
        byte[] sourceTransactionHash = HashUtil.h256(Integer.toString(i).getBytes());
        transfers[i] = BridgeTransfer.getInstance(BigInteger.ONE, AddressSpecs.computeA0Address(HashUtil.h256(Integer.toHexString(i).getBytes())), sourceTransactionHash);
    }
    byte[] payloadHash = BridgeUtilities.computeBundleHash(blockHash, transfers);
    // ATB-4, do one assert here to check that transactionHash is not set
    assertThat(this.contract.execute(ByteUtil.merge(BridgeFuncSig.PURE_ACTION_MAP.getBytes(), payloadHash), 21000L).getReturnData()).isEqualTo(ByteUtil.EMPTY_WORD);
    // only give 3/5 signatures
    byte[][] signatures = new byte[3][];
    signatures[0] = members[0].sign(payloadHash).toBytes();
    signatures[1] = members[1].sign(payloadHash).toBytes();
    signatures[2] = members[1].sign(payloadHash).toBytes();
    ListFVM sourceTransactionList = new ListFVM();
    ListFVM addressList = new ListFVM();
    ListFVM uintList = new ListFVM();
    for (BridgeTransfer b : transfers) {
        sourceTransactionList.add(new AddressFVM(b.getSourceTransactionHash()));
        addressList.add(new AddressFVM(b.getRecipient()));
        uintList.add(new Uint128FVM(PrecompiledUtilities.pad(b.getTransferValue().toByteArray(), 16)));
    }
    ListFVM sigChunk1 = new ListFVM();
    ListFVM sigChunk2 = new ListFVM();
    ListFVM sigChunk3 = new ListFVM();
    for (byte[] sig : signatures) {
        // add incorrect signatures, copies [0:32] for all chunks
        sigChunk1.add(new AddressFVM(Arrays.copyOfRange(sig, 0, 32)));
        sigChunk2.add(new AddressFVM(Arrays.copyOfRange(sig, 0, 32)));
        sigChunk3.add(new AddressFVM(Arrays.copyOfRange(sig, 0, 32)));
    }
    callPayload = new AbiEncoder(BridgeFuncSig.SIG_SUBMIT_BUNDLE.getSignature(), new AddressFVM(blockHash), sourceTransactionList, addressList, uintList, sigChunk1, sigChunk2, sigChunk3).encodeBytes();
    // input will include 5 transfers and 3 validators with incorrect signatures
    transferResult = this.contract.execute(callPayload, DEFAULT_NRG);
    // / VERIFICATION
    assertThat(this.contract.execute(ByteUtil.merge(BridgeFuncSig.PURE_ACTION_MAP.getBytes(), payloadHash), 21000L).getReturnData()).isEqualTo(new byte[32]);
    assertEquals("FAILURE", transferResult.getStatus().causeOfError);
    // check that nothing has been changed from the failed transfer
    for (BridgeTransfer b : transfers) {
        assertThat(this.repository.getBalance(new AionAddress(b.getRecipient()))).isEqualTo(BigInteger.ZERO);
    }
    assertThat(this.repository.getBalance(CONTRACT_ADDR)).isEqualTo(BigInteger.valueOf(10));
    assertThat(submitBundleContext.getInternalTransactions()).isEmpty();
    assertThat(submitBundleContext.getLogs()).isEmpty();
}

Example 4 with Uint128FVM

use of org.aion.zero.impl.precompiled.encoding.Uint128FVM in project aion by aionnetwork.

the class TokenBridgeContractTest method testTransfersGreaterThanMaxListSize.

@Test
public void testTransfersGreaterThanMaxListSize() {
    // override defaults
    this.contract = new TokenBridgeContract(context(OWNER_ADDR, CONTRACT_ADDR), ExternalStateForTests.usingRepository(this.repository), OWNER_ADDR, CONTRACT_ADDR);
    this.connector = this.contract.getConnector();
    ListFVM encodingList = new ListFVM();
    for (ECKey k : members) {
        encodingList.add(new AddressFVM(k.getAddress()));
    }
    byte[] payload = new AbiEncoder(BridgeFuncSig.SIG_RING_INITIALIZE.getSignature(), encodingList).encodeBytes();
    PrecompiledTransactionResult result = this.contract.execute(payload, DEFAULT_NRG);
    assertTrue(result.getStatus().isSuccess());
    // set relayer
    byte[] callPayload = new AbiEncoder(BridgeFuncSig.SIG_SET_RELAYER.getSignature(), new AddressFVM(members[0].getAddress())).encodeBytes();
    PrecompiledTransactionResult transferResult = this.contract.execute(callPayload, DEFAULT_NRG);
    assertTrue(transferResult.getStatus().isSuccess());
    // override defaults
    PrecompiledTransactionContext submitBundleContext = context(new AionAddress(members[0].getAddress()), CONTRACT_ADDR);
    this.repository.addBalance(CONTRACT_ADDR, BigInteger.valueOf(1024));
    this.contract = new TokenBridgeContract(submitBundleContext, ExternalStateForTests.usingRepository(this.repository), OWNER_ADDR, CONTRACT_ADDR);
    this.connector = this.contract.getConnector();
    // assemble the payload
    byte[] blockHash = HashUtil.h256("blockHash".getBytes());
    // place a value greater than the maximum 1024
    BridgeTransfer[] transfers = new BridgeTransfer[1024];
    for (int i = 0; i < 1024; i++) {
        // generate a unique sourceTransactionHash for each transfer
        byte[] sourceTransactionHash = HashUtil.h256(Integer.toString(i).getBytes());
        transfers[i] = BridgeTransfer.getInstance(BigInteger.ONE, AddressSpecs.computeA0Address(HashUtil.h256(Integer.toHexString(i).getBytes())), sourceTransactionHash);
    }
    byte[] payloadHash = BridgeUtilities.computeBundleHash(blockHash, transfers);
    byte[][] signatures = new byte[members.length][];
    int i = 0;
    for (ECKey k : members) {
        signatures[i] = k.sign(payloadHash).toBytes();
        i++;
    }
    ListFVM sourceTransactionList = new ListFVM();
    ListFVM addressList = new ListFVM();
    ListFVM uintList = new ListFVM();
    for (BridgeTransfer b : transfers) {
        sourceTransactionList.add(new AddressFVM(b.getSourceTransactionHash()));
        addressList.add(new AddressFVM(b.getRecipient()));
        uintList.add(new Uint128FVM(PrecompiledUtilities.pad(b.getTransferValue().toByteArray(), 16)));
    }
    ListFVM sigChunk1 = new ListFVM();
    ListFVM sigChunk2 = new ListFVM();
    ListFVM sigChunk3 = new ListFVM();
    for (byte[] sig : signatures) {
        sigChunk1.add(new AddressFVM(Arrays.copyOfRange(sig, 0, 32)));
        sigChunk2.add(new AddressFVM(Arrays.copyOfRange(sig, 32, 64)));
        sigChunk3.add(new AddressFVM(Arrays.copyOfRange(sig, 64, 96)));
    }
    callPayload = new AbiEncoder(BridgeFuncSig.SIG_SUBMIT_BUNDLE.getSignature(), new AddressFVM(blockHash), sourceTransactionList, addressList, uintList, sigChunk1, sigChunk2, sigChunk3).encodeBytes();
    transferResult = this.contract.execute(callPayload, DEFAULT_NRG);
    // / VERIFICATION
    assertEquals("FAILURE", transferResult.getStatus().causeOfError);
    for (BridgeTransfer b : transfers) {
        assertThat(this.repository.getBalance(new AionAddress(b.getRecipient()))).isEqualTo(BigInteger.ZERO);
    }
    assertThat(this.repository.getBalance(CONTRACT_ADDR)).isEqualTo(BigInteger.valueOf(1024));
    assertThat(submitBundleContext.getInternalTransactions()).isEmpty();
    assertThat(submitBundleContext.getLogs()).isEmpty();
}

Example 5 with Uint128FVM

use of org.aion.zero.impl.precompiled.encoding.Uint128FVM in project aion by aionnetwork.

the class TokenBridgeContractTest method testNonA0AddressTransfer.

@Test
public void testNonA0AddressTransfer() {
    // override defaults
    PrecompiledTransactionContext initializationContext = context(OWNER_ADDR, CONTRACT_ADDR);
    this.contract = new TokenBridgeContract(initializationContext, ExternalStateForTests.usingRepository(this.repository), OWNER_ADDR, CONTRACT_ADDR);
    this.connector = this.contract.getConnector();
    ListFVM encodingList = new ListFVM();
    for (ECKey k : members) {
        encodingList.add(new AddressFVM(k.getAddress()));
    }
    byte[] payload = new AbiEncoder(BridgeFuncSig.SIG_RING_INITIALIZE.getSignature(), encodingList).encodeBytes();
    PrecompiledTransactionResult result = this.contract.execute(payload, DEFAULT_NRG);
    assertTrue(result.getStatus().isSuccess());
    // set relayer
    byte[] callPayload = new AbiEncoder(BridgeFuncSig.SIG_SET_RELAYER.getSignature(), new AddressFVM(members[0].getAddress())).encodeBytes();
    PrecompiledTransactionResult transferResult = this.contract.execute(callPayload, DEFAULT_NRG);
    assertTrue(transferResult.getStatus().isSuccess());
    // override defaults
    this.repository.addBalance(CONTRACT_ADDR, BigInteger.TEN);
    // we create a new token bridge contract here because we
    // need to change the execution context
    PrecompiledTransactionContext submitBundleContext = context(new AionAddress(members[0].getAddress()), CONTRACT_ADDR);
    this.contract = new TokenBridgeContract(submitBundleContext, ExternalStateForTests.usingRepository(this.repository), OWNER_ADDR, CONTRACT_ADDR);
    this.connector = this.contract.getConnector();
    // assemble the payload
    byte[] blockHash = HashUtil.h256("blockHash".getBytes());
    BridgeTransfer[] transfers = new BridgeTransfer[10];
    for (int i = 0; i < 10; i++) {
        // generate a unique sourceTransactionHash for each transfer
        byte[] sourceTransactionHash = HashUtil.h256(Integer.toString(i).getBytes());
        transfers[i] = BridgeTransfer.getInstance(BigInteger.ONE, HashUtil.h256(Integer.toHexString(i).getBytes()), sourceTransactionHash);
    }
    byte[] payloadHash = BridgeUtilities.computeBundleHash(blockHash, transfers);
    // ATB-4, do one assert here to check that transactionHash is not set
    assertThat(this.contract.execute(ByteUtil.merge(BridgeFuncSig.PURE_ACTION_MAP.getBytes(), payloadHash), 21000L).getReturnData()).isEqualTo(ByteUtil.EMPTY_WORD);
    byte[][] signatures = new byte[members.length][];
    int i = 0;
    for (ECKey k : members) {
        signatures[i] = k.sign(payloadHash).toBytes();
        i++;
    }
    ListFVM sourceTransactionList = new ListFVM();
    ListFVM addressList = new ListFVM();
    ListFVM uintList = new ListFVM();
    for (BridgeTransfer b : transfers) {
        sourceTransactionList.add(new AddressFVM(b.getSourceTransactionHash()));
        addressList.add(new AddressFVM(b.getRecipient()));
        uintList.add(new Uint128FVM(PrecompiledUtilities.pad(b.getTransferValue().toByteArray(), 16)));
    }
    ListFVM sigChunk1 = new ListFVM();
    ListFVM sigChunk2 = new ListFVM();
    ListFVM sigChunk3 = new ListFVM();
    for (byte[] sig : signatures) {
        sigChunk1.add(new AddressFVM(Arrays.copyOfRange(sig, 0, 32)));
        sigChunk2.add(new AddressFVM(Arrays.copyOfRange(sig, 32, 64)));
        sigChunk3.add(new AddressFVM(Arrays.copyOfRange(sig, 64, 96)));
    }
    callPayload = new AbiEncoder(BridgeFuncSig.SIG_SUBMIT_BUNDLE.getSignature(), new AddressFVM(blockHash), sourceTransactionList, addressList, uintList, sigChunk1, sigChunk2, sigChunk3).encodeBytes();
    transferResult = this.contract.execute(callPayload, DEFAULT_NRG);
    // / VERIFICATION
    // ATB-4 assert that transactionHash is now properly set
    // ATB-4, do one assert here to check that transactionHash is not set
    assertThat(this.contract.execute(ByteUtil.merge(BridgeFuncSig.PURE_ACTION_MAP.getBytes(), payloadHash), 21000L).getReturnData()).isEqualTo(submitBundleContext.copyOfTransactionHash());
    assertTrue(transferResult.getStatus().isSuccess());
    for (BridgeTransfer b : transfers) {
        assertThat(this.repository.getBalance(new AionAddress(b.getRecipient()))).isEqualTo(BigInteger.ONE);
    }
    assertThat(this.repository.getBalance(CONTRACT_ADDR)).isEqualTo(BigInteger.ZERO);
    // context verification
    // we expect on successful output:
    // 10 internal transactions (that all succeed)
    // 10 Distributed events
    // 1  ProcessedBundle Event
    assertThat(submitBundleContext.getInternalTransactions().size()).isEqualTo(10);
    i = 0;
    for (InternalTransaction tx : submitBundleContext.getInternalTransactions()) {
        // verify the internal transaction is not rejected
        assertThat(tx.isRejected).isFalse();
        // verify the from is the contract address
        assertThat(tx.sender).isEqualTo(CONTRACT_ADDR);
        // verify that we sent the correct amount
        assertThat(tx.value.intValueExact()).isEqualTo(1);
        // verify that the recipient is what we intended (in the order we submitted)
        assertThat(tx.destination).isEqualTo(new AionAddress(transfers[i].getRecipient()));
        i++;
    }
    // check that proper events are emit
    assertThat(submitBundleContext.getLogs().size()).isEqualTo(11);
    i = 0;
    for (Log l : submitBundleContext.getLogs()) {
        // verify address is correct
        assertThat(l.copyOfAddress()).isEqualTo(CONTRACT_ADDR.toByteArray());
        List<byte[]> topics = l.copyOfTopics();
        // on the 11th log, it should be the processed bundle event
        if (i == 10) {
            assertThat(topics.get(0)).isEqualTo(BridgeEventSig.PROCESSED_BUNDLE.getHashed());
            assertThat(topics.get(1)).isEqualTo(blockHash);
            assertThat(topics.get(2)).isEqualTo(payloadHash);
            continue;
        }
        // otherwise we expect a Distributed event
        assertThat(topics.get(0)).isEqualTo(BridgeEventSig.DISTRIBUTED.getHashed());
        assertThat(topics.get(1)).isEqualTo(transfers[i].getSourceTransactionHash());
        assertThat(topics.get(2)).isEqualTo(transfers[i].getRecipient());
        assertThat(new BigInteger(1, topics.get(3))).isEqualTo(transfers[i].getTransferValue());
        i++;
    }
}