openethereum/crates/rpc/src/v1/tests/mocked/parity.rs

// Copyright 2015-2020 Parity Technologies (UK) Ltd.
// This file is part of OpenEthereum.

// OpenEthereum is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.

// OpenEthereum is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with OpenEthereum.  If not, see <http://www.gnu.org/licenses/>.

use crypto::publickey::{Generator, Random};
use ethcore::client::{Executed, TestBlockChainClient, TransactionId};
use ethcore_logger::RotatingLogger;
use ethereum_types::{Address, BigEndianHash, Bloom, H256, U256};
use miner::pool::local_transactions::Status as LocalTransactionStatus;
use std::{str::FromStr, sync::Arc};
use sync::ManageNetwork;
use types::{
    receipt::{LocalizedReceipt, TransactionOutcome},
    transaction::TypedTxId,
};

use super::manage_network::TestManageNetwork;
use jsonrpc_core::IoHandler;
use v1::{
    helpers::{external_signer::SignerService, NetworkSettings},
    metadata::Metadata,
    tests::helpers::{Config, TestMinerService, TestSyncProvider},
    Parity, ParityClient,
};
use Host;

pub type TestParityClient = ParityClient<TestBlockChainClient, TestMinerService>;

pub struct Dependencies {
    pub miner: Arc<TestMinerService>,
    pub client: Arc<TestBlockChainClient>,
    pub sync: Arc<TestSyncProvider>,
    pub logger: Arc<RotatingLogger>,
    pub settings: Arc<NetworkSettings>,
    pub network: Arc<dyn ManageNetwork>,
    pub ws_address: Option<Host>,
}

impl Dependencies {
    pub fn new() -> Self {
        Dependencies {
            miner: Arc::new(TestMinerService::default()),
            client: Arc::new(TestBlockChainClient::default()),
            sync: Arc::new(TestSyncProvider::new(Config {
                network_id: 3,
                num_peers: 120,
            })),
            logger: Arc::new(RotatingLogger::new("rpc=trace".to_owned())),
            settings: Arc::new(NetworkSettings {
                name: "mynode".to_owned(),
                chain: "testchain".to_owned(),
                is_dev_chain: false,
                network_port: 30303,
                rpc_enabled: true,
                rpc_interface: "all".to_owned(),
                rpc_port: 8545,
            }),
            network: Arc::new(TestManageNetwork),
            ws_address: Some("127.0.0.1:18546".into()),
        }
    }

    pub fn client(&self, signer: Option<Arc<SignerService>>) -> TestParityClient {
        ParityClient::new(
            self.client.clone(),
            self.miner.clone(),
            self.sync.clone(),
            self.network.clone(),
            self.logger.clone(),
            self.settings.clone(),
            signer,
            self.ws_address.clone(),
            None,
        )
    }

    fn default_client(&self) -> IoHandler<Metadata> {
        let mut io = IoHandler::default();
        io.extend_with(self.client(None).to_delegate());
        io
    }

    fn with_signer(&self, signer: SignerService) -> IoHandler<Metadata> {
        let mut io = IoHandler::default();
        io.extend_with(self.client(Some(Arc::new(signer))).to_delegate());
        io
    }
}

#[test]
fn rpc_parity_extra_data() {
    let deps = Dependencies::new();
    let io = deps.default_client();

    let request = r#"{"jsonrpc": "2.0", "method": "parity_extraData", "params": [], "id": 1}"#;
    let response = r#"{"jsonrpc":"2.0","result":"0x01020304","id":1}"#;

    assert_eq!(io.handle_request_sync(request), Some(response.to_owned()));
}

#[test]
fn rpc_parity_default_extra_data() {
    use bytes::ToPretty;
    use version::version_data;

    let deps = Dependencies::new();
    let io = deps.default_client();

    let request =
        r#"{"jsonrpc": "2.0", "method": "parity_defaultExtraData", "params": [], "id": 1}"#;
    let response = format!(
        r#"{{"jsonrpc":"2.0","result":"0x{}","id":1}}"#,
        version_data().to_hex()
    );

    assert_eq!(io.handle_request_sync(request), Some(response));
}

#[test]
fn rpc_parity_gas_floor_target() {
    let deps = Dependencies::new();
    let io = deps.default_client();

    let request = r#"{"jsonrpc": "2.0", "method": "parity_gasFloorTarget", "params": [], "id": 1}"#;
    let response = r#"{"jsonrpc":"2.0","result":"0x3039","id":1}"#;

    assert_eq!(io.handle_request_sync(request), Some(response.to_owned()));
}

#[test]
fn rpc_parity_min_gas_price() {
    let deps = Dependencies::new();
    let io = deps.default_client();

    let request = r#"{"jsonrpc": "2.0", "method": "parity_minGasPrice", "params": [], "id": 1}"#;
    let response = r#"{"jsonrpc":"2.0","result":"0x1312d00","id":1}"#;

    assert_eq!(io.handle_request_sync(request), Some(response.to_owned()));
}

#[test]
fn rpc_parity_dev_logs() {
    let deps = Dependencies::new();
    deps.logger.append("a".to_owned());
    deps.logger.append("b".to_owned());

    let io = deps.default_client();

    let request = r#"{"jsonrpc": "2.0", "method": "parity_devLogs", "params":[], "id": 1}"#;
    let response = r#"{"jsonrpc":"2.0","result":["b","a"],"id":1}"#;

    assert_eq!(io.handle_request_sync(request), Some(response.to_owned()));
}

#[test]
fn rpc_parity_dev_logs_levels() {
    let deps = Dependencies::new();
    let io = deps.default_client();

    let request = r#"{"jsonrpc": "2.0", "method": "parity_devLogsLevels", "params":[], "id": 1}"#;
    let response = r#"{"jsonrpc":"2.0","result":"rpc=trace","id":1}"#;

    assert_eq!(io.handle_request_sync(request), Some(response.to_owned()));
}

#[test]
fn rpc_parity_transactions_limit() {
    let deps = Dependencies::new();
    let io = deps.default_client();

    let request =
        r#"{"jsonrpc": "2.0", "method": "parity_transactionsLimit", "params":[], "id": 1}"#;
    let response = r#"{"jsonrpc":"2.0","result":1024,"id":1}"#;

    assert_eq!(io.handle_request_sync(request), Some(response.to_owned()));
}

#[test]
fn rpc_parity_net_chain() {
    let deps = Dependencies::new();
    let io = deps.default_client();

    let request = r#"{"jsonrpc": "2.0", "method": "parity_netChain", "params":[], "id": 1}"#;
    let response = r#"{"jsonrpc":"2.0","result":"testchain","id":1}"#;

    assert_eq!(io.handle_request_sync(request), Some(response.to_owned()));
}

#[test]
fn rpc_parity_chain() {
    let deps = Dependencies::new();
    let io = deps.default_client();

    let request = r#"{"jsonrpc": "2.0", "method": "parity_chain", "params":[], "id": 1}"#;
    let response = r#"{"jsonrpc":"2.0","result":"foundation","id":1}"#;

    assert_eq!(io.handle_request_sync(request), Some(response.to_owned()));
}

#[test]
fn rpc_parity_net_peers() {
    let deps = Dependencies::new();
    let io = deps.default_client();

    let request = r#"{"jsonrpc": "2.0", "method": "parity_netPeers", "params":[], "id": 1}"#;
    let response = r#"{"jsonrpc":"2.0","result":{"active":0,"connected":120,"max":50,"peers":[{"caps":["eth/63","eth/64"],"id":"node1","name":{"ParityClient":{"can_handle_large_requests":true,"compiler":"rustc","identity":"1","name":"Parity-Ethereum","os":"linux","semver":"2.4.0"}},"network":{"localAddress":"127.0.0.1:8888","remoteAddress":"127.0.0.1:7777"},"protocols":{"eth":{"difficulty":"0x28","head":"0000000000000000000000000000000000000000000000000000000000000032","version":63}}},{"caps":["eth/64","eth/65"],"id":null,"name":{"Other":"Open-Ethereum/2/v2.4.0/linux/rustc"},"network":{"localAddress":"127.0.0.1:3333","remoteAddress":"Handshake"},"protocols":{"eth":{"difficulty":null,"head":"000000000000000000000000000000000000000000000000000000000000003c","version":65}}}]},"id":1}"#;

    assert_eq!(io.handle_request_sync(request), Some(response.to_owned()));
}

#[test]
fn rpc_parity_net_port() {
    let deps = Dependencies::new();
    let io = deps.default_client();

    let request = r#"{"jsonrpc": "2.0", "method": "parity_netPort", "params":[], "id": 1}"#;
    let response = r#"{"jsonrpc":"2.0","result":30303,"id":1}"#;

    assert_eq!(io.handle_request_sync(request), Some(response.to_owned()));
}

#[test]
fn rpc_parity_rpc_settings() {
    let deps = Dependencies::new();
    let io = deps.default_client();

    let request = r#"{"jsonrpc": "2.0", "method": "parity_rpcSettings", "params":[], "id": 1}"#;
    let response =
        r#"{"jsonrpc":"2.0","result":{"enabled":true,"interface":"all","port":8545},"id":1}"#;

    assert_eq!(io.handle_request_sync(request), Some(response.to_owned()));
}

#[test]
fn rpc_parity_node_name() {
    let deps = Dependencies::new();
    let io = deps.default_client();

    let request = r#"{"jsonrpc": "2.0", "method": "parity_nodeName", "params":[], "id": 1}"#;
    let response = r#"{"jsonrpc":"2.0","result":"mynode","id":1}"#;

    assert_eq!(io.handle_request_sync(request), Some(response.to_owned()));
}

#[test]
fn rpc_parity_unsigned_transactions_count() {
    let deps = Dependencies::new();
    let io = deps.with_signer(SignerService::new_test(true));

    let request =
        r#"{"jsonrpc": "2.0", "method": "parity_unsignedTransactionsCount", "params":[], "id": 1}"#;
    let response = r#"{"jsonrpc":"2.0","result":0,"id":1}"#;

    assert_eq!(io.handle_request_sync(request), Some(response.to_owned()));
}

#[test]
fn rpc_parity_unsigned_transactions_count_when_signer_disabled() {
    let deps = Dependencies::new();
    let io = deps.default_client();

    let request =
        r#"{"jsonrpc": "2.0", "method": "parity_unsignedTransactionsCount", "params":[], "id": 1}"#;
    let response = r#"{"jsonrpc":"2.0","error":{"code":-32000,"message":"Trusted Signer is disabled. This API is not available."},"id":1}"#;

    assert_eq!(io.handle_request_sync(request), Some(response.to_owned()));
}

#[test]
fn rpc_parity_pending_transactions() {
    let deps = Dependencies::new();
    let io = deps.default_client();

    let request =
        r#"{"jsonrpc": "2.0", "method": "parity_pendingTransactions", "params":[], "id": 1}"#;
    let response = r#"{"jsonrpc":"2.0","result":[],"id":1}"#;

    assert_eq!(io.handle_request_sync(request), Some(response.to_owned()));
}

fn assert_txs_filtered(io: &IoHandler<Metadata>, filter: &str, expected: Vec<u8>) {
    let request = format!(
        r#"{{"jsonrpc": "2.0", "method": "parity_pendingTransactions",
        "params":[10, {}], "id": 1}}"#,
        filter
    );
    let response_str = io.handle_request_sync(&request).unwrap();
    let response = serde_json::Value::from_str(&response_str).unwrap();
    assert_eq!(response["result"].as_array().unwrap().len(), expected.len());
    for n in expected {
        let expected_sender = format!("0x000000000000000000000000000000000000005{}", n);
        assert!(response_str.contains(&expected_sender));
    }
}

#[test]
fn rpc_parity_pending_transactions_with_filter() {
    use types::transaction::{Action, Transaction, TypedTransaction};
    let deps = Dependencies::new();
    let io = deps.default_client();

    for i in 1..6 {
        let tx = TypedTransaction::Legacy(Transaction {
            value: i.into(),
            gas: (i + 0x10).into(),
            gas_price: (i + 0x20).into(),
            nonce: (i + 0x30).into(),
            action: Action::Call(Address::from_low_u64_be(i + 0x40)),
            data: vec![],
        })
        .fake_sign(Address::from_low_u64_be(i + 0x50));
        deps.miner
            .pending_transactions
            .lock()
            .insert(H256::from_low_u64_be(i + 0x60), tx);
    }

    let tx = TypedTransaction::Legacy(Transaction {
        value: 0.into(),
        gas: 0x16.into(),
        gas_price: 0x26.into(),
        nonce: 0x36.into(),
        action: Action::Create,
        data: vec![0x01, 0x02, 0x03],
    })
    .fake_sign(Address::from_low_u64_be(0x56));
    deps.miner
        .pending_transactions
        .lock()
        .insert(H256::from_low_u64_be(0x66), tx);

    assert_txs_filtered(
        &io,
        r#"{"from":{"eq":"0x0000000000000000000000000000000000000052"}}"#,
        vec![2],
    );
    assert_txs_filtered(
        &io,
        r#"{"to":{"eq":"0x0000000000000000000000000000000000000041"}}"#,
        vec![1],
    );
    assert_txs_filtered(&io, r#"{"to":{"action":"contract_creation"}}"#, vec![6]);
    assert_txs_filtered(&io, r#"{"gas":{"gt":"0x12"}}"#, vec![3, 4, 5, 6]);
    assert_txs_filtered(&io, r#"{"gasPrice":{"eq":"0x24"}}"#, vec![4]);
    assert_txs_filtered(&io, r#"{"nonce":{"lt":"0x33"}}"#, vec![1, 2]);
    assert_txs_filtered(&io, r#"{"value":{"lt":"0x2"}}"#, vec![1, 6]);
    assert_txs_filtered(
        &io,
        r#"{"value":{"gt":"0x1"},"gas":{"lt":"0x14"}}"#,
        vec![2, 3],
    );
    assert_txs_filtered(&io, r#"{"value":{"gt":"0x6"},"gas":{"gt":"0x1"}}"#, vec![]);
    assert_txs_filtered(
        &io,
        r#"{"value":{"lt":"0x60"},"nonce":{"lt":"0x60"}}"#,
        vec![1, 2, 3, 4, 5, 6],
    );
}

#[test]
fn rpc_parity_encrypt() {
    let deps = Dependencies::new();
    let io = deps.default_client();
    let key = format!("{:x}", Random.generate().public());

    let request = r#"{"jsonrpc": "2.0", "method": "parity_encryptMessage", "params":["0x"#
        .to_owned()
        + &key
        + r#"", "0x01"], "id": 1}"#;
    assert!(
        io.handle_request_sync(&request).unwrap().contains("result"),
        "Should return success."
    );
}

#[test]
fn rpc_parity_ws_address() {
    // given
    let mut deps = Dependencies::new();
    let io1 = deps.default_client();
    deps.ws_address = None;
    let io2 = deps.default_client();

    // when
    let request = r#"{"jsonrpc": "2.0", "method": "parity_wsUrl", "params": [], "id": 1}"#;
    let response1 = r#"{"jsonrpc":"2.0","result":"127.0.0.1:18546","id":1}"#;
    let response2 = r#"{"jsonrpc":"2.0","error":{"code":-32000,"message":"WebSockets Server is disabled. This API is not available."},"id":1}"#;

    // then
    assert_eq!(io1.handle_request_sync(request), Some(response1.to_owned()));
    assert_eq!(io2.handle_request_sync(request), Some(response2.to_owned()));
}

#[test]
fn rpc_parity_next_nonce() {
    let deps = Dependencies::new();
    let address = Address::default();
    let io1 = deps.default_client();
    let deps = Dependencies::new();
    deps.miner.increment_nonce(&address);
    deps.miner.increment_nonce(&address);
    deps.miner.increment_nonce(&address);
    let io2 = deps.default_client();

    let request = r#"{
		"jsonrpc": "2.0",
		"method": "parity_nextNonce",
		"params": [""#
        .to_owned()
        + &format!("0x{:x}", address)
        + r#""],
		"id": 1
	}"#;
    let response1 = r#"{"jsonrpc":"2.0","result":"0x0","id":1}"#;
    let response2 = r#"{"jsonrpc":"2.0","result":"0x3","id":1}"#;

    assert_eq!(
        io1.handle_request_sync(&request),
        Some(response1.to_owned())
    );
    assert_eq!(
        io2.handle_request_sync(&request),
        Some(response2.to_owned())
    );
}

#[test]
fn rpc_parity_transactions_stats() {
    let deps = Dependencies::new();
    let io = deps.default_client();

    let request =
        r#"{"jsonrpc": "2.0", "method": "parity_pendingTransactionsStats", "params":[], "id": 1}"#;
    let response = r#"{"jsonrpc":"2.0","result":{"0x0000000000000000000000000000000000000000000000000000000000000001":{"firstSeen":10,"propagatedTo":{"0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080":16}},"0x0000000000000000000000000000000000000000000000000000000000000005":{"firstSeen":16,"propagatedTo":{"0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010":1}}},"id":1}"#;

    assert_eq!(io.handle_request_sync(request), Some(response.to_owned()));
}

#[test]
fn rpc_parity_local_transactions() {
    use types::transaction::{Transaction, TypedTransaction};
    let deps = Dependencies::new();
    let io = deps.default_client();
    let tx = TypedTransaction::Legacy(Transaction {
        value: 5.into(),
        gas: 3.into(),
        gas_price: 2.into(),
        action: ::types::transaction::Action::Create,
        data: vec![1, 2, 3],
        nonce: 0.into(),
    })
    .fake_sign(Address::from_low_u64_be(3));
    let tx = Arc::new(::miner::pool::VerifiedTransaction::from_pending_block_transaction(tx));
    deps.miner.local_transactions.lock().insert(
        H256::from_low_u64_be(10),
        LocalTransactionStatus::Pending(tx.clone()),
    );
    deps.miner.local_transactions.lock().insert(
        H256::from_low_u64_be(15),
        LocalTransactionStatus::Pending(tx.clone()),
    );

    let request =
        r#"{"jsonrpc": "2.0", "method": "parity_localTransactions", "params":[], "id": 1}"#;
    let response = r#"{"jsonrpc":"2.0","result":{"0x000000000000000000000000000000000000000000000000000000000000000a":{"status":"pending"},"0x000000000000000000000000000000000000000000000000000000000000000f":{"status":"pending"}},"id":1}"#;

    assert_eq!(io.handle_request_sync(request), Some(response.to_owned()));
}

#[test]
fn rpc_parity_chain_status() {
    let deps = Dependencies::new();
    let io = deps.default_client();

    *deps.client.ancient_block.write() = Some((H256::default(), 5));
    *deps.client.first_block.write() = Some((BigEndianHash::from_uint(&U256::from(1234)), 3333));

    let request = r#"{"jsonrpc": "2.0", "method": "parity_chainStatus", "params":[], "id": 1}"#;
    let response = r#"{"jsonrpc":"2.0","result":{"blockGap":["0x6","0xd05"]},"id":1}"#;

    assert_eq!(io.handle_request_sync(request), Some(response.to_owned()));
}

#[test]
fn rpc_parity_node_kind() {
    let deps = Dependencies::new();
    let io = deps.default_client();

    let request = r#"{"jsonrpc": "2.0", "method": "parity_nodeKind", "params":[], "id": 1}"#;
    let response =
        r#"{"jsonrpc":"2.0","result":{"availability":"personal","capability":"full"},"id":1}"#;

    assert_eq!(io.handle_request_sync(request), Some(response.to_owned()));
}

#[test]
fn rpc_parity_call() {
    let deps = Dependencies::new();
    deps.client.set_execution_result(Ok(Executed {
        exception: None,
        gas: U256::zero(),
        gas_used: U256::from(0xff30),
        refunded: U256::from(0x5),
        cumulative_gas_used: U256::zero(),
        logs: vec![],
        contracts_created: vec![],
        output: vec![0x12, 0x34, 0xff],
        trace: vec![],
        vm_trace: None,
        state_diff: None,
    }));
    let io = deps.default_client();

    let request = r#"{
		"jsonrpc": "2.0",
		"method": "parity_call",
		"params": [[{
			"from": "0xb60e8dd61c5d32be8058bb8eb970870f07233155",
			"to": "0xd46e8dd67c5d32be8058bb8eb970870f07244567",
			"gas": "0x76c0",
			"gasPrice": "0x9184e72a000",
			"value": "0x9184e72a",
			"data": "0xd46e8dd67c5d32be8d46e8dd67c5d32be8058bb8eb970870f072445675058bb8eb970870f072445675"
		}],
		"latest"],
		"id": 1
	}"#;
    let response = r#"{"jsonrpc":"2.0","result":["0x1234ff"],"id":1}"#;

    assert_eq!(io.handle_request_sync(request), Some(response.to_owned()));
}

#[test]
fn rpc_parity_block_receipts() {
    let deps = Dependencies::new();
    deps.client.receipts.write().insert(
        TransactionId::Hash(H256::from_low_u64_be(1)),
        LocalizedReceipt {
            transaction_hash: H256::from_low_u64_be(1),
            transaction_type: TypedTxId::Legacy,
            transaction_index: 0,
            block_hash: H256::from_low_u64_be(3),
            block_number: 0,
            cumulative_gas_used: 21_000.into(),
            gas_used: 21_000.into(),
            contract_address: None,
            logs: vec![],
            log_bloom: Bloom::from_low_u64_be(1),
            outcome: TransactionOutcome::Unknown,
            to: None,
            from: Address::from_low_u64_be(9),
            effective_gas_price: Default::default(),
        },
    );
    let io = deps.default_client();

    let request = r#"{
		"jsonrpc": "2.0",
		"method": "parity_getBlockReceipts",
		"params": [],
		"id": 1
	}"#;
    let response = r#"{"jsonrpc":"2.0","result":[{"blockHash":"0x0000000000000000000000000000000000000000000000000000000000000003","blockNumber":"0x0","contractAddress":null,"cumulativeGasUsed":"0x5208","effectiveGasPrice":"0x0","from":"0x0000000000000000000000000000000000000009","gasUsed":"0x5208","logs":[],"logsBloom":"0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001","to":null,"transactionHash":"0x0000000000000000000000000000000000000000000000000000000000000001","transactionIndex":"0x0"}],"id":1}"#;

    assert_eq!(io.handle_request_sync(request), Some(response.to_owned()));
}

#[test]
fn rpc_status_ok() {
    let deps = Dependencies::new();
    let io = deps.default_client();

    let request = r#"{
		"jsonrpc": "2.0",
		"method": "parity_nodeStatus",
		"params": [],
		"id": 1
	}"#;
    let response = r#"{"jsonrpc":"2.0","result":null,"id":1}"#;

    assert_eq!(io.handle_request_sync(request), Some(response.to_owned()));
}

#[test]
fn rpc_status_error_peers() {
    let deps = Dependencies::new();
    deps.sync.status.write().num_peers = 0;
    let io = deps.default_client();

    let request = r#"{
		"jsonrpc": "2.0",
		"method": "parity_nodeStatus",
		"params": [],
		"id": 1
	}"#;
    let response = r#"{"jsonrpc":"2.0","error":{"code":-32066,"message":"Node is not connected to any peers."},"id":1}"#;

    assert_eq!(io.handle_request_sync(request), Some(response.to_owned()));
}

#[test]
fn rpc_status_error_sync() {
    let deps = Dependencies::new();
    deps.sync.status.write().state = ::sync::SyncState::Blocks;
    let io = deps.default_client();

    let request = r#"{
		"jsonrpc": "2.0",
		"method": "parity_nodeStatus",
		"params": [],
		"id": 1
	}"#;
    let response = r#"{"jsonrpc":"2.0","error":{"code":-32001,"message":"Still syncing."},"id":1}"#;

    assert_eq!(io.handle_request_sync(request), Some(response.to_owned()));
}

#[test]
fn rpc_parity_verify_signature() {
    let deps = Dependencies::new();
    let io = deps.default_client();

    let request = r#"{
		"jsonrpc": "2.0",
		"method": "parity_verifySignature",
		"params": [
			false,
			"0xe552acf4caabe9661893fd48c7b5e68af20bf007193442f8ca05ce836699d75e",
			"0x2089e84151c3cdc45255c07557b349f5bf2ed3e68f6098723eaa90a0f8b2b3e5",
			"0x5f70e8df7bd0c4417afb5f5a39d82e15d03adeff8796725d8b14889ed1d1aa8a",
			"0x1"
		],
		"id": 0
	}"#;

    let response = r#"{"jsonrpc":"2.0","result":{"address":"0x9a2a08a1170f51208c2f3cede0d29ada94481eed","isValidForCurrentChain":true,"publicKey":"0xbeec94ea24444906fe247c47841a45220f07e5718d06157fe4502fac326dab617e973e221e45746721330c2db3f63202268686378cc28b9800c1daaf0bbafeb1"},"id":0}"#;

    assert_eq!(io.handle_request_sync(request), Some(response.to_owned()));
}