279 lines
8.5 KiB
Rust
279 lines
8.5 KiB
Rust
use std::path::PathBuf;
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use std::fs::File;
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use std::io::Read;
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use std::sync::Arc;
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use ethcore_logger::init_log;
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use super::super::tests::{FakeExt, FakeCall, FakeCallType};
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use super::WasmInterpreter;
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use evm::{self, Evm, GasLeft};
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use action_params::{ActionParams, ActionValue};
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use util::{U256, H256, Address};
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fn load_sample(name: &str) -> Vec<u8> {
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let mut path = PathBuf::from("./res/wasm-tests/compiled");
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path.push(name);
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let mut file = File::open(path).expect(&format!("File {} for test to exist", name));
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let mut data = vec![];
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file.read_to_end(&mut data).expect(&format!("Test {} to load ok", name));
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data
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}
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fn test_finalize(res: Result<GasLeft, evm::Error>) -> Result<U256, evm::Error> {
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match res {
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Ok(GasLeft::Known(gas)) => Ok(gas),
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Ok(GasLeft::NeedsReturn{..}) => unimplemented!(), // since ret is unimplemented.
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Err(e) => Err(e),
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}
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}
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fn wasm_interpreter() -> WasmInterpreter {
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WasmInterpreter::new().expect("wasm interpreter to create without errors")
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}
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/// Empty contract does almost nothing except producing 1 (one) local node debug log message
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#[test]
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fn empty() {
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init_log();
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let code = load_sample("empty.wasm");
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let address: Address = "0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6".parse().unwrap();
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let mut params = ActionParams::default();
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params.address = address.clone();
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params.gas = U256::from(100_000);
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params.code = Some(Arc::new(code));
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let mut ext = FakeExt::new();
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let gas_left = {
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let mut interpreter = wasm_interpreter();
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test_finalize(interpreter.exec(params, &mut ext)).unwrap()
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};
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assert_eq!(gas_left, U256::from(99_996));
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}
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// This test checks if the contract deserializes payload header properly.
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// Contract is provided with receiver(address), sender, origin and transaction value
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// logger.wasm writes all these provided fixed header fields to some arbitrary storage keys.
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#[test]
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fn logger() {
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init_log();
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let code = load_sample("logger.wasm");
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let address: Address = "0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6".parse().unwrap();
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let sender: Address = "0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d".parse().unwrap();
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let origin: Address = "0102030405060708090a0b0c0d0e0f1011121314".parse().unwrap();
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let mut params = ActionParams::default();
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params.address = address.clone();
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params.sender = sender.clone();
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params.origin = origin.clone();
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params.gas = U256::from(100_000);
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params.value = ActionValue::transfer(1_000_000_000);
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params.code = Some(Arc::new(code));
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let mut ext = FakeExt::new();
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let gas_left = {
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let mut interpreter = wasm_interpreter();
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test_finalize(interpreter.exec(params, &mut ext)).unwrap()
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};
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println!("ext.store: {:?}", ext.store);
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assert_eq!(gas_left, U256::from(99581));
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let address_val: H256 = address.into();
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assert_eq!(
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ext.store.get(&"0100000000000000000000000000000000000000000000000000000000000000".parse().unwrap()).expect("storage key to exist"),
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&address_val,
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"Logger sets 0x01 key to the provided address"
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);
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let sender_val: H256 = sender.into();
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assert_eq!(
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ext.store.get(&"0200000000000000000000000000000000000000000000000000000000000000".parse().unwrap()).expect("storage key to exist"),
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&sender_val,
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"Logger sets 0x02 key to the provided sender"
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);
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let origin_val: H256 = origin.into();
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assert_eq!(
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ext.store.get(&"0300000000000000000000000000000000000000000000000000000000000000".parse().unwrap()).expect("storage key to exist"),
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&origin_val,
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"Logger sets 0x03 key to the provided origin"
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);
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assert_eq!(
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U256::from(ext.store.get(&"0400000000000000000000000000000000000000000000000000000000000000".parse().unwrap()).expect("storage key to exist")),
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U256::from(1_000_000_000),
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"Logger sets 0x04 key to the trasferred value"
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);
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}
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// This test checks if the contract can allocate memory and pass pointer to the result stream properly.
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// 1. Contract is being provided with the call descriptor ptr
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// 2. Descriptor ptr is 16 byte length
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// 3. The last 8 bytes of call descriptor is the space for the contract to fill [result_ptr[4], result_len[4]]
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// if it has any result.
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#[test]
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fn identity() {
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init_log();
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let code = load_sample("identity.wasm");
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let sender: Address = "01030507090b0d0f11131517191b1d1f21232527".parse().unwrap();
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let mut params = ActionParams::default();
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params.sender = sender.clone();
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params.gas = U256::from(100_000);
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params.code = Some(Arc::new(code));
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let mut ext = FakeExt::new();
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let (gas_left, result) = {
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let mut interpreter = wasm_interpreter();
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let result = interpreter.exec(params, &mut ext).expect("Interpreter to execute without any errors");
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match result {
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GasLeft::Known(_) => { panic!("Identity contract should return payload"); },
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GasLeft::NeedsReturn { gas_left: gas, data: result, apply_state: _apply } => (gas, result.to_vec()),
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}
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};
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assert_eq!(gas_left, U256::from(99_689));
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assert_eq!(
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Address::from_slice(&result),
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sender,
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"Idenity test contract does not return the sender passed"
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);
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}
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// Dispersion test sends byte array and expect the contract to 'disperse' the original elements with
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// their modulo 19 dopant.
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// The result is always twice as long as the input.
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// This also tests byte-perfect memory allocation and in/out ptr lifecycle.
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#[test]
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fn dispersion() {
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init_log();
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let code = load_sample("dispersion.wasm");
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let mut params = ActionParams::default();
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params.gas = U256::from(100_000);
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params.code = Some(Arc::new(code));
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params.data = Some(vec![
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0u8, 125, 197, 255, 19
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]);
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let mut ext = FakeExt::new();
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let (gas_left, result) = {
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let mut interpreter = wasm_interpreter();
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let result = interpreter.exec(params, &mut ext).expect("Interpreter to execute without any errors");
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match result {
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GasLeft::Known(_) => { panic!("Dispersion routine should return payload"); },
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GasLeft::NeedsReturn { gas_left: gas, data: result, apply_state: _apply } => (gas, result.to_vec()),
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}
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};
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assert_eq!(gas_left, U256::from(99_402));
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assert_eq!(
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result,
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vec![0u8, 0, 125, 11, 197, 7, 255, 8, 19, 0]
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);
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}
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#[test]
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fn suicide_not() {
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init_log();
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let code = load_sample("suicidal.wasm");
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let mut params = ActionParams::default();
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params.gas = U256::from(100_000);
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params.code = Some(Arc::new(code));
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params.data = Some(vec![
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0u8
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]);
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let mut ext = FakeExt::new();
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let (gas_left, result) = {
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let mut interpreter = wasm_interpreter();
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let result = interpreter.exec(params, &mut ext).expect("Interpreter to execute without any errors");
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match result {
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GasLeft::Known(_) => { panic!("Suicidal contract should return payload when had not actualy killed himself"); },
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GasLeft::NeedsReturn { gas_left: gas, data: result, apply_state: _apply } => (gas, result.to_vec()),
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}
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};
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assert_eq!(gas_left, U256::from(99_703));
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assert_eq!(
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result,
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vec![0u8]
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);
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}
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#[test]
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fn suicide() {
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init_log();
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let code = load_sample("suicidal.wasm");
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let refund: Address = "01030507090b0d0f11131517191b1d1f21232527".parse().unwrap();
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let mut params = ActionParams::default();
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params.gas = U256::from(100_000);
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params.code = Some(Arc::new(code));
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let mut args = vec![127u8];
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args.extend(refund.to_vec());
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params.data = Some(args);
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let mut ext = FakeExt::new();
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let gas_left = {
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let mut interpreter = wasm_interpreter();
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let result = interpreter.exec(params, &mut ext).expect("Interpreter to execute without any errors");
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match result {
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GasLeft::Known(gas) => gas,
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GasLeft::NeedsReturn { .. } => {
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panic!("Suicidal contract should not return anything when had killed itself");
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},
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}
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};
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assert_eq!(gas_left, U256::from(99_747));
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assert!(ext.suicides.contains(&refund));
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}
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#[test]
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fn create() {
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init_log();
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let mut params = ActionParams::default();
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params.gas = U256::from(100_000);
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params.code = Some(Arc::new(load_sample("creator.wasm")));
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params.data = Some(vec![0u8, 2, 4, 8, 16, 32, 64, 128]);
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params.value = ActionValue::transfer(1_000_000_000);
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let mut ext = FakeExt::new();
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let gas_left = {
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let mut interpreter = wasm_interpreter();
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let result = interpreter.exec(params, &mut ext).expect("Interpreter to execute without any errors");
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match result {
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GasLeft::Known(gas) => gas,
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GasLeft::NeedsReturn { .. } => {
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panic!("Create contract should not return anthing because ext always fails on creation");
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},
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}
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};
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trace!(target: "wasm", "fake_calls: {:?}", &ext.calls);
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assert!(ext.calls.contains(
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&FakeCall {
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call_type: FakeCallType::Create,
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gas: U256::from(99_778),
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sender_address: None,
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receive_address: None,
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value: Some(1_000_000_000.into()),
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data: vec![0u8, 2, 4, 8, 16, 32, 64, 128],
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code_address: None,
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}
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));
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assert_eq!(gas_left, U256::from(99_768));
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} |