refactored loading of execution tests

ethcore/src/action_params.rs

@@ -16,6 +16,7 @@
 
 //! Evm input params.
 use common::*;
+use ethjson;
 
 /// Transaction value
 #[derive(Clone, Debug)]
@@ -67,3 +68,19 @@ impl Default for ActionParams {
 		}
 	}
 }
+
+impl From<ethjson::vm::Transaction> for ActionParams {
+	fn from(t: ethjson::vm::Transaction) -> Self {
+		ActionParams {
+			code_address: Address::new(),
+			address: t.address.into(),
+			sender: t.sender.into(),
+			origin: t.origin.into(),
+			code: Some(t.code.into()),
+			data: Some(t.data.into()),
+			gas: t.gas.into(),
+			gas_price: t.gas_price.into(),
+			value: ActionValue::Transfer(t.value.into()),
+		}
+	}
+}

ethcore/src/env_info.rs

@@ -16,6 +16,7 @@
 
 use util::*;
 use header::BlockNumber;
+use ethjson;
 
 /// Simple vector of hashes, should be at most 256 items large, can be smaller if being used
 /// for a block whose number is less than 257.
@@ -69,6 +70,21 @@ impl FromJson for EnvInfo {
 	}
 }
 
+impl From<ethjson::vm::Env> for EnvInfo {
+	fn from(e: ethjson::vm::Env) -> Self {
+		let number = e.number.into();
+		EnvInfo {
+			number: number,
+			author: e.author.into(),
+			difficulty: e.difficulty.into(),
+			gas_limit: e.gas_limit.into(),
+			timestamp: e.timestamp.into(),
+			last_hashes: (1..cmp::min(number + 1, 257)).map(|i| format!("{}", number - i).as_bytes().sha3()).collect(),
+			gas_used: U256::zero(),
+		}
+	}
+}
+
 #[cfg(test)]
 mod tests {
 	extern crate rustc_serialize;

ethcore/src/json_tests/chain.rs

@@ -28,7 +28,7 @@ pub fn json_chain_test(json_data: &[u8], era: ChainEra) -> Vec<String> {
 	let tests = ethjson::blockchain::Test::load(json_data).unwrap();
 	let mut failed = Vec::new();
 
-	for (name, blockchain) in tests.deref() {
+	for (name, blockchain) in tests.into_iter() {
 		let mut fail = false;
 		{
 			let mut fail_unless = |cond: bool| if !cond && !fail {
@@ -61,7 +61,7 @@ pub fn json_chain_test(json_data: &[u8], era: ChainEra) -> Vec<String> {
 						client.import_verified_blocks(&IoChannel::disconnected());
 					}
 				}
-				fail_unless(client.chain_info().best_block_hash == blockchain.best_block.clone().into());
+				fail_unless(client.chain_info().best_block_hash == blockchain.best_block.into());
 			}
 		}
 

ethcore/src/json_tests/executive.rs

@@ -25,6 +25,8 @@ use ethereum;
 use externalities::*;
 use substate::*;
 use tests::helpers::*;
+use state_diff::StateDiff;
+use ethjson;
 
 struct TestEngineFrontier {
 	vm_factory: Factory,
@@ -53,13 +55,26 @@ impl Engine for TestEngineFrontier {
 	}
 }
 
+#[derive(Debug, PartialEq)]
 struct CallCreate {
 	data: Bytes,
 	destination: Option<Address>,
 	gas_limit: U256,
 	value: U256
 }
 
+impl From<ethjson::vm::Call> for CallCreate {
+	fn from(c: ethjson::vm::Call) -> Self {
+		let dst: Option<_> = c.destination.into();
+		CallCreate {
+			data: c.data.into(),
+			destination: dst.map(Into::into),
+			gas_limit: c.gas_limit.into(),
+			value: c.value.into()
+		}
+	}
+}
+
 /// Tiny wrapper around executive externalities.
 /// Stores callcreates.
 struct TestExt<'a> {
@@ -174,58 +189,26 @@ fn do_json_test(json_data: &[u8]) -> Vec<String> {
 		.collect()
 }
 
-fn do_json_test_for(vm: &VMType, json_data: &[u8]) -> Vec<String> {
-	let json = Json::from_str(::std::str::from_utf8(json_data).unwrap()).expect("Json is invalid");
+fn do_json_test_for(vm_type: &VMType, json_data: &[u8]) -> Vec<String> {
+	let tests = ethjson::vm::Test::load(json_data).unwrap();
 	let mut failed = Vec::new();
-	for (name, test) in json.as_object().unwrap() {
+
+	for (name, vm) in tests.into_iter() {
 		println!("name: {:?}", name);
-		// sync io is usefull when something crashes in jit
-		// ::std::io::stdout().write(&name.as_bytes());
-		// ::std::io::stdout().write(b"\n");
-		// ::std::io::stdout().flush();
 		let mut fail = false;
-		//let mut fail_unless = |cond: bool| if !cond && !fail { failed.push(name.to_string()); fail = true };
+
 		let mut fail_unless = |cond: bool, s: &str | if !cond && !fail {
-			failed.push(format!("[{}] {}: {}", vm, name, s));
+			failed.push(format!("[{}] {}: {}", vm_type, name, s));
 			fail = true
 		};
 
-		// test env
+		let out_of_gas = vm.out_of_gas();
 		let mut state_result = get_temp_state();
 		let mut state = state_result.reference_mut();
-
-		test.find("pre").map(|pre| for (addr, s) in pre.as_object().unwrap() {
-			let address = Address::from(addr.as_ref());
-			let balance = xjson!(&s["balance"]);
-			let code = xjson!(&s["code"]);
-			let _nonce: U256 = xjson!(&s["nonce"]);
-
-			state.new_contract(&address, balance);
-			state.init_code(&address, code);
-			BTreeMap::from_json(&s["storage"]).into_iter().foreach(|(k, v)| state.set_storage(&address, k, v));
-		});
-
-		let info = test.find("env").map(|env| {
-			EnvInfo::from_json(env)
-		}).unwrap_or_default();
-
-		let engine = TestEngineFrontier::new(1, vm.clone());
-
-		// params
-		let mut params = ActionParams::default();
-		test.find("exec").map(|exec| {
-			params.address = xjson!(&exec["address"]);
-			params.sender = xjson!(&exec["caller"]);
-			params.origin = xjson!(&exec["origin"]);
-			params.code = xjson!(&exec["code"]);
-			params.data = xjson!(&exec["data"]);
-			params.gas = xjson!(&exec["gas"]);
-			params.gas_price = xjson!(&exec["gasPrice"]);
-			params.value = ActionValue::Transfer(xjson!(&exec["value"]));
-		});
-
-		let out_of_gas = test.find("callcreates").map(|_calls| {
-		}).is_none();
+		state.populate_from(From::from(vm.pre_state.clone()));
+		let info = From::from(vm.env);
+		let engine = TestEngineFrontier::new(1, vm_type.clone());
+		let params = ActionParams::from(vm.transaction);
 
 		let mut substate = Substate::new(false);
 		let mut output = vec![];
@@ -247,44 +230,26 @@ fn do_json_test_for(vm: &VMType, json_data: &[u8]) -> Vec<String> {
 			(res, ex.callcreates)
 		};
 
-		// then validate
 		match res {
 			Err(_) => fail_unless(out_of_gas, "didn't expect to run out of gas."),
 			Ok(gas_left) => {
-				// println!("name: {}, gas_left : {:?}", name, gas_left);
 				fail_unless(!out_of_gas, "expected to run out of gas.");
-				fail_unless(gas_left == xjson!(&test["gas"]), "gas_left is incorrect");
-				fail_unless(output == Bytes::from_json(&test["out"]), "output is incorrect");
-
-				test.find("post").map(|pre| for (addr, s) in pre.as_object().unwrap() {
-					let address = Address::from(addr.as_ref());
-
-					fail_unless(state.code(&address).unwrap_or_else(|| vec![]) == Bytes::from_json(&s["code"]), "code is incorrect");
-					fail_unless(state.balance(&address) == xjson!(&s["balance"]), "balance is incorrect");
-					fail_unless(state.nonce(&address) == xjson!(&s["nonce"]), "nonce is incorrect");
-					BTreeMap::from_json(&s["storage"]).iter().foreach(|(k, v)| fail_unless(&state.storage_at(&address, &k) == v, "storage is incorrect"));
-				});
-
-				let cc = test["callcreates"].as_array().unwrap();
-				fail_unless(callcreates.len() == cc.len(), "callcreates does not match");
-				for i in 0..cc.len() {
-					let callcreate = &callcreates[i];
-					let expected = &cc[i];
-					fail_unless(callcreate.data == Bytes::from_json(&expected["data"]), "callcreates data is incorrect");
-					fail_unless(callcreate.destination == xjson!(&expected["destination"]), "callcreates destination is incorrect");
-					fail_unless(callcreate.value == xjson!(&expected["value"]), "callcreates value is incorrect");
-					fail_unless(callcreate.gas_limit == xjson!(&expected["gasLimit"]), "callcreates gas_limit is incorrect");
-				}
+				fail_unless(Some(gas_left) == vm.gas_left.map(Into::into), "gas_left is incorrect");
+				let vm_output: Option<Vec<u8>> = vm.output.map(Into::into);
+				fail_unless(Some(output) == vm_output, "output is incorrect");
+
+				let diff = StateDiff::diff_pod(&state.to_pod(), &From::from(vm.post_state.unwrap()));
+				fail_unless(diff.is_empty(), format!("diff should be empty!: {:?}", diff).as_ref());
+				let calls: Option<Vec<CallCreate>> = vm.calls.map(|c| c.into_iter().map(From::from).collect());
+				fail_unless(Some(callcreates) == calls, "callcreates does not match");
 			}
-		}
+		};
 	}
 
-
 	for f in &failed {
 		println!("FAILED: {:?}", f);
 	}
 
-	//assert!(false);
 	failed
 }
 

ethcore/src/pod_account.rs

@@ -19,7 +19,7 @@ use account::*;
 use account_db::*;
 use ethjson;
 
-#[derive(Debug,Clone,PartialEq,Eq)]
+#[derive(Debug, Clone, PartialEq, Eq)]
 /// An account, expressed as Plain-Old-Data (hence the name).
 /// Does not have a DB overlay cache, code hash or anything like that.
 pub struct PodAccount {

ethcore/src/state_diff.rs

@@ -20,7 +20,7 @@ use pod_state::*;
 use account_diff::*;
 
 #[derive(Debug,Clone,PartialEq,Eq)]
-/// Expression for the delta between two system states. Encoded the 
+/// Expression for the delta between two system states. Encoded the
 /// delta of every altered account.
 pub struct StateDiff (BTreeMap<Address, AccountDiff>);
 
@@ -41,6 +41,14 @@ impl fmt::Display for StateDiff {
 	}
 }
 
+impl Deref for StateDiff {
+	type Target = BTreeMap<Address, AccountDiff>;
+
+	fn deref(&self) -> &Self::Target {
+		&self.0
+	}
+}
+
 #[cfg(test)]
 mod test {
 	use common::*;

json/src/blockchain/state.rs

@@ -17,18 +17,18 @@
 //! Blockchain test state deserializer.
 
 use std::collections::BTreeMap;
-use std::ops::Deref;
 use hash::Address;
 use blockchain::account::Account;
 
 /// Blockchain test state deserializer.
 #[derive(Debug, PartialEq, Deserialize, Clone)]
 pub struct State(pub BTreeMap<Address, Account>);
 
-impl Deref for State {
-	type Target = BTreeMap<Address, Account>;
+impl IntoIterator for State {
+	type Item = <BTreeMap<Address, Account> as IntoIterator>::Item;
+	type IntoIter = <BTreeMap<Address, Account> as IntoIterator>::IntoIter;
 
-	fn deref(&self) -> &Self::Target {
-		&self.0
+	fn into_iter(self) -> Self::IntoIter {
+		self.0.into_iter()
 	}
 }

json/src/blockchain/test.rs

@@ -17,7 +17,6 @@
 //! Blockchain test deserializer.
 
 use std::collections::BTreeMap;
-use std::ops::Deref;
 use std::io::Read;
 use serde_json;
 use serde_json::Error;
@@ -27,11 +26,12 @@ use blockchain::blockchain::BlockChain;
 #[derive(Debug, PartialEq, Deserialize)]
 pub struct Test(BTreeMap<String, BlockChain>);
 
-impl Deref for Test {
-	type Target = BTreeMap<String, BlockChain>;
+impl IntoIterator for Test {
+	type Item = <BTreeMap<String, BlockChain> as IntoIterator>::Item;
+	type IntoIter = <BTreeMap<String, BlockChain> as IntoIterator>::IntoIter;
 
-	fn deref(&self) -> &Self::Target {
-		&self.0
+	fn into_iter(self) -> Self::IntoIter {
+		self.0.into_iter()
 	}
 }
 

json/src/hash.rs

@@ -26,7 +26,7 @@ macro_rules! impl_hash {
 	($name: ident, $inner: ident) => {
 		/// Lenient hash json deserialization for test json files.
 		#[derive(Default, Debug, PartialEq, Eq, Hash, PartialOrd, Ord, Clone)]
-		pub struct $name($inner);
+		pub struct $name(pub $inner);
 
 		impl Into<$inner> for $name {
 			fn into(self) -> $inner {

json/src/lib.rs.in

@@ -24,3 +24,5 @@ pub mod uint;
 pub mod bytes;
 pub mod blockchain;
 pub mod spec;
+pub mod vm;
+pub mod maybe;