Framework for improved RPC unit tests

ethcore/src/types/transaction.rs

@@ -36,6 +36,7 @@ pub enum Action {
 	/// Create creates new contract.
 	Create,
 	/// Calls contract at given address.
+	/// In the case of a transfer, this is the receiver's address.'
 	Call(Address),
 }
 

json/src/bytes.rs

@@ -19,6 +19,7 @@
 use rustc_serialize::hex::FromHex;
 use serde::{Deserialize, Deserializer, Error};
 use serde::de::Visitor;
+use std::ops::Deref;
 
 /// Lenient bytes json deserialization for test json files.
 #[derive(Default, Debug, PartialEq, Clone)]
@@ -30,6 +31,14 @@ impl Into<Vec<u8>> for Bytes {
 	}
 }
 
+impl Deref for Bytes {
+	type Target = Vec<u8>;
+
+	fn deref(&self) -> &Vec<u8> {
+		&self.0
+	}
+}
+
 impl Deserialize for Bytes {
 	fn deserialize<D>(deserializer: &mut D) -> Result<Self, D::Error>
 		where D: Deserializer {

json/src/vm/call.rs

@@ -39,16 +39,47 @@ pub struct Call {
 mod tests {
 	use serde_json;
 	use vm::Call;
+	use util::numbers::U256;
+	use uint::Uint;
+	use util::hash::Address as Hash160;
+	use hash::Address;
+	use maybe::MaybeEmpty;
+	use std::str::FromStr;
 
 	#[test]
-	fn call_deserialization() {
+	fn call_deserialization_empty_dest() {
 		let s = r#"{
 			"data" : "0x1111222233334444555566667777888899990000aaaabbbbccccddddeeeeffff",
 			"destination" : "",
 			"gasLimit" : "0x1748766aa5",
 			"value" : "0x00"
 		}"#;
-		let _deserialized: Call = serde_json::from_str(s).unwrap();
-		// TODO: validate all fields
+		let call: Call = serde_json::from_str(s).unwrap();
+
+		assert_eq!(&call.data[..],
+			&[0x11, 0x11, 0x22, 0x22, 0x33, 0x33, 0x44, 0x44, 0x55, 0x55, 0x66, 0x66, 0x77, 0x77,
+			  0x88, 0x88, 0x99, 0x99, 0x00, 0x00, 0xaa, 0xaa, 0xbb, 0xbb, 0xcc, 0xcc, 0xdd, 0xdd,
+			  0xee, 0xee, 0xff, 0xff]);
+
+		assert_eq!(call.destination, MaybeEmpty::None);
+		assert_eq!(call.gas_limit, Uint(U256::from(0x1748766aa5u64)));
+		assert_eq!(call.value, Uint(U256::from(0)));
+	}
+
+	#[test]
+	fn call_deserialization_full_dest() {
+		let s = r#"{
+			"data" : "0x1234",
+			"destination" : "5a39ed1020c04d4d84539975b893a4e7c53eab6c",
+			"gasLimit" : "0x1748766aa5",
+			"value" : "0x00"
+		}"#;
+
+		let call: Call = serde_json::from_str(s).unwrap();
+
+		assert_eq!(&call.data[..], &[0x12, 0x34]);
+		assert_eq!(call.destination, MaybeEmpty::Some(Address(Hash160::from_str("5a39ed1020c04d4d84539975b893a4e7c53eab6c").unwrap())));
+		assert_eq!(call.gas_limit, Uint(U256::from(0x1748766aa5u64)));
+		assert_eq!(call.value, Uint(U256::from(0)));
 	}
 }

miner/src/lib.rs

@@ -107,12 +107,12 @@ pub trait MinerService : Send + Sync {
 	/// Imports transactions to transaction queue.
 	fn import_transactions<T>(&self, transactions: Vec<SignedTransaction>, fetch_account: T) ->
 		Vec<Result<TransactionImportResult, Error>>
-		where T: Fn(&Address) -> AccountDetails;
+		where T: Fn(&Address) -> AccountDetails, Self: Sized;
 
 	/// Imports own (node owner) transaction to queue.
 	fn import_own_transaction<T>(&self, chain: &BlockChainClient, transaction: SignedTransaction, fetch_account: T) ->
 		Result<TransactionImportResult, Error>
-		where T: Fn(&Address) -> AccountDetails;
+		where T: Fn(&Address) -> AccountDetails, Self: Sized;
 
 	/// Returns hashes of transactions currently in pending
 	fn pending_transactions_hashes(&self) -> Vec<H256>;
@@ -131,7 +131,8 @@ pub trait MinerService : Send + Sync {
 	fn submit_seal(&self, chain: &BlockChainClient, pow_hash: H256, seal: Vec<Bytes>) -> Result<(), Error>;
 
 	/// Get the sealing work package and if `Some`, apply some transform.
-	fn map_sealing_work<F, T>(&self, chain: &BlockChainClient, f: F) -> Option<T> where F: FnOnce(&ClosedBlock) -> T;
+	fn map_sealing_work<F, T>(&self, chain: &BlockChainClient, f: F) -> Option<T>
+		where F: FnOnce(&ClosedBlock) -> T, Self: Sized;
 
 	/// Query pending transactions for hash.
 	fn transaction(&self, hash: &H256) -> Option<SignedTransaction>;

rpc/Cargo.toml

@@ -19,6 +19,8 @@ ethcore = { path = "../ethcore" }
 ethash = { path = "../ethash" }
 ethsync = { path = "../sync" }
 ethminer = { path = "../miner" }
+ethjson = { path = "../json" }
+ethcore-devtools = { path = "../devtools" }
 rustc-serialize = "0.3"
 transient-hashmap = "0.1"
 serde_macros = { version = "0.7.0", optional = true }

rpc/src/lib.rs

@@ -33,6 +33,11 @@ extern crate ethminer;
 extern crate transient_hashmap;
 extern crate json_ipc_server as ipc;
 
+#[cfg(test)]
+extern crate ethjson;
+#[cfg(test)]
+extern crate ethcore_devtools as devtools;
+
 use std::sync::Arc;
 use std::net::SocketAddr;
 use self::jsonrpc_core::{IoHandler, IoDelegate};

rpc/src/v1/impls/ethcore.rs

@@ -22,7 +22,7 @@ use std::sync::{Arc, Weak};
 use std::ops::Deref;
 use std::collections::BTreeMap;
 use jsonrpc_core::*;
-use ethminer::{MinerService};
+use ethminer::MinerService;
 use v1::traits::Ethcore;
 use v1::types::Bytes;
 

rpc/src/v1/tests/eth.rs

@@ -0,0 +1,229 @@
+// Copyright 2016 Ethcore (UK) Ltd.
+// This file is part of Parity.
+
+// Parity 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.
+
+// Parity 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 Parity.  If not, see <http://www.gnu.org/licenses/>.
+
+//! rpc integration tests.
+use std::collections::HashMap;
+use std::sync::Arc;
+use std::str::FromStr;
+
+use ethcore::client::{BlockChainClient, Client, ClientConfig};
+use ethcore::spec::Genesis;
+use ethcore::block::Block;
+use ethcore::ethereum;
+use ethcore::transaction::{Transaction, Action};
+use ethminer::{MinerService, ExternalMiner};
+use devtools::RandomTempPath;
+use util::io::IoChannel;
+use util::hash::{Address, FixedHash};
+use util::numbers::{Uint, U256};
+use util::keys::{AccountProvider, TestAccount, TestAccountProvider};
+use jsonrpc_core::IoHandler;
+use ethjson::blockchain::BlockChain;
+
+use v1::traits::eth::Eth;
+use v1::impls::EthClient;
+use v1::tests::helpers::{TestSyncProvider, Config, TestMinerService};
+
+struct EthTester {
+	_client: Arc<BlockChainClient>,
+	_miner: Arc<MinerService>,
+	accounts: Arc<TestAccountProvider>,
+	handler: IoHandler,
+}
+
+#[test]
+fn harness_works() {
+	let chain: BlockChain = extract_chain!("BlockchainTests/bcUncleTest");
+	chain_harness(chain, |_| {});
+}
+
+#[test]
+fn eth_get_balance() {
+	let chain = extract_chain!("BlockchainTests/bcWalletTest", "wallet2outOf3txs");
+	chain_harness(chain, |tester| {
+		// final account state
+		let req_latest = r#"{
+			"jsonrpc": "2.0",
+			"method": "eth_getBalance",
+			"params": ["0xaaaf5374fce5edbc8e2a8697c15331677e6ebaaa", "latest"],
+			"id": 1
+		}"#;
+		let res_latest = r#"{"jsonrpc":"2.0","result":"0x09","id":1}"#.to_owned();
+		assert_eq!(tester.handler.handle_request(req_latest).unwrap(), res_latest);
+
+		// non-existant account
+		let req_new_acc = r#"{
+			"jsonrpc": "2.0",
+			"method": "eth_getBalance",
+			"params": ["0xaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"],
+			"id": 3
+		}"#;
+
+		let res_new_acc = r#"{"jsonrpc":"2.0","result":"0x00","id":3}"#.to_owned();
+		assert_eq!(tester.handler.handle_request(req_new_acc).unwrap(), res_new_acc);
+	});
+}
+
+#[test]
+fn eth_block_number() {
+	let chain = extract_chain!("BlockchainTests/bcRPC_API_Test");
+	chain_harness(chain, |tester| {
+		let req_number = r#"{
+			"jsonrpc": "2.0",
+			"method": "eth_blockNumber",
+			"params": [],
+			"id": 1
+		}"#;
+
+		let res_number = r#"{"jsonrpc":"2.0","result":"0x20","id":1}"#.to_owned();
+		assert_eq!(tester.handler.handle_request(req_number).unwrap(), res_number);
+	});
+}
+
+#[cfg(test)]
+#[test]
+fn eth_transaction_count() {
+	let chain = extract_chain!("BlockchainTests/bcRPC_API_Test");
+	chain_harness(chain, |tester| {
+		let address = tester.accounts.new_account("123").unwrap();
+		let secret = tester.accounts.account_secret(&address).unwrap();
+
+		let req_before = r#"{
+			"jsonrpc": "2.0",
+			"method": "eth_getTransactionCount",
+			"params": [""#.to_owned() + format!("0x{:?}", address).as_ref() + r#"", "latest"],
+			"id": 15
+		}"#;
+
+		let res_before = r#"{"jsonrpc":"2.0","result":"0x00","id":15}"#;
+
+		assert_eq!(tester.handler.handle_request(&req_before).unwrap(), res_before);
+
+		let t = Transaction {
+			nonce: U256::zero(),
+			gas_price: U256::from(0x9184e72a000u64),
+			gas: U256::from(0x76c0),
+			action: Action::Call(Address::from_str("d46e8dd67c5d32be8058bb8eb970870f07244567").unwrap()),
+			value: U256::from(0x9184e72au64),
+			data: vec![]
+		}.sign(&secret);
+
+		let req_send_trans = r#"{
+			"jsonrpc": "2.0",
+			"method": "eth_sendTransaction",
+			"params": [{
+				"from": ""#.to_owned() + format!("0x{:?}", address).as_ref() + r#"",
+				"to": "0xd46e8dd67c5d32be8058bb8eb970870f07244567",
+				"gas": "0x76c0",
+				"gasPrice": "0x9184e72a000",
+				"value": "0x9184e72a"
+			}],
+			"id": 16
+		}"#;
+
+		let res_send_trans = r#"{"jsonrpc":"2.0","result":""#.to_owned() + format!("0x{:?}", t.hash()).as_ref() + r#"","id":16}"#;
+
+		// dispatch the transaction.
+		assert_eq!(tester.handler.handle_request(&req_send_trans).unwrap(), res_send_trans);
+
+		// we have submitted the transaction -- but this shouldn't be reflected in a "latest" query.
+		let req_after_latest = r#"{
+			"jsonrpc": "2.0",
+			"method": "eth_getTransactionCount",
+			"params": [""#.to_owned() + format!("0x{:?}", address).as_ref() + r#"", "latest"],
+			"id": 17
+		}"#;
+
+		let res_after_latest = r#"{"jsonrpc":"2.0","result":"0x00","id":17}"#;
+
+		assert_eq!(&tester.handler.handle_request(&req_after_latest).unwrap(), res_after_latest);
+
+		// the pending transactions should have been updated.
+		let req_after_pending = r#"{
+			"jsonrpc": "2.0",
+			"method": "eth_getTransactionCount",
+			"params": [""#.to_owned() + format!("0x{:?}", address).as_ref() + r#"", "pending"],
+			"id": 18
+		}"#;
+
+		let res_after_pending = r#"{"jsonrpc":"2.0","result":"0x01","id":18}"#;
+
+		assert_eq!(&tester.handler.handle_request(&req_after_pending).unwrap(), res_after_pending);
+	});
+}
+
+fn account_provider() -> Arc<TestAccountProvider> {
+	let mut accounts = HashMap::new();
+	accounts.insert(Address::from(1), TestAccount::new("test"));
+	let ap = TestAccountProvider::new(accounts);
+	Arc::new(ap)
+}
+
+fn sync_provider() -> Arc<TestSyncProvider> {
+	Arc::new(TestSyncProvider::new(Config {
+		network_id: U256::from(3),
+		num_peers: 120,
+	}))
+}
+
+fn miner_service() -> Arc<TestMinerService> {
+	Arc::new(TestMinerService::default())
+}
+
+// given a blockchain, this harness will create an EthClient wrapping it
+// which tests can pass specially crafted requests to.
+fn chain_harness<F, U>(chain: BlockChain, mut cb: F) -> U
+	where F: FnMut(&EthTester) -> U {
+	let genesis = Genesis::from(chain.genesis());
+	let mut spec = ethereum::new_frontier_test();
+	let state = chain.pre_state.clone().into();
+	spec.set_genesis_state(state);
+	spec.overwrite_genesis_params(genesis);
+	assert!(spec.is_state_root_valid());
+
+	let dir = RandomTempPath::new();
+	let client = Client::new(ClientConfig::default(), spec, dir.as_path(), IoChannel::disconnected()).unwrap();
+	let sync_provider = sync_provider();
+	let miner_service = miner_service();
+	let account_provider = account_provider();
+	let external_miner = Arc::new(ExternalMiner::default());
+
+	for b in &chain.blocks_rlp() {
+		if Block::is_good(&b) {
+			let _ = client.import_block(b.clone());
+			client.flush_queue();
+			client.import_verified_blocks(&IoChannel::disconnected());
+		}
+	}
+
+	assert!(client.chain_info().best_block_hash == chain.best_block.into());
+
+	let eth_client = EthClient::new(&client, &sync_provider, &account_provider,
+		&miner_service, &external_miner);
+
+	let handler = IoHandler::new();
+	let delegate = eth_client.to_delegate();
+	handler.add_delegate(delegate);
+
+	let tester = EthTester {
+		_miner: miner_service,
+		_client: client,
+		accounts: account_provider,
+		handler: handler,
+	};
+
+	cb(&tester)
+}