use ethers_providers::{Http, JsonRpcClient, Middleware, Provider}; use ethers_core::{ types::{BlockNumber, TransactionRequest}, utils::parse_units, }; use ethers_middleware::signer::SignerMiddleware; use ethers_signers::{coins_bip39::English, LocalWallet, MnemonicBuilder, Signer}; use once_cell::sync::Lazy; use std::{convert::TryFrom, sync::atomic::AtomicU8, time::Duration}; static WALLETS: Lazy = Lazy::new(|| { TestWallets { mnemonic: MnemonicBuilder::default() // Please don't drain this :) .phrase("impose air often almost medal sudden finish quote dwarf devote theme layer"), next: Default::default(), } }); #[tokio::test] #[cfg(not(feature = "celo"))] async fn send_eth() { use ethers_core::utils::Ganache; let ganache = Ganache::new().spawn(); // this private key belongs to the above mnemonic let wallet: LocalWallet = ganache.keys()[0].clone().into(); let wallet2: LocalWallet = ganache.keys()[1].clone().into(); // connect to the network let provider = Provider::::try_from(ganache.endpoint()) .unwrap() .interval(Duration::from_millis(10u64)); let chain_id = provider.get_chainid().await.unwrap().as_u64(); let wallet = wallet.with_chain_id(chain_id); let provider = SignerMiddleware::new(provider, wallet); // craft the transaction let tx = TransactionRequest::new().to(wallet2.address()).value(10000); let balance_before = provider .get_balance(provider.address(), None) .await .unwrap(); // send it! provider.send_transaction(tx, None).await.unwrap(); let balance_after = provider .get_balance(provider.address(), None) .await .unwrap(); assert!(balance_before > balance_after); } #[tokio::test] #[cfg(not(feature = "celo"))] async fn pending_txs_with_confirmations_testnet() { let provider = Provider::::try_from("https://rinkeby.infura.io/v3/c60b0bb42f8a4c6481ecd229eddaca27") .unwrap() .interval(Duration::from_millis(3000)); let chain_id = provider.get_chainid().await.unwrap(); let wallet = WALLETS.next().with_chain_id(chain_id.as_u64()); let address = wallet.address(); let provider = SignerMiddleware::new(provider, wallet); generic_pending_txs_test(provider, address).await; } #[cfg(not(feature = "celo"))] use ethers_core::types::{Address, Eip1559TransactionRequest}; // different keys to avoid nonce errors #[tokio::test] #[cfg(not(feature = "celo"))] async fn websocket_pending_txs_with_confirmations_testnet() { let provider = Provider::connect("wss://rinkeby.infura.io/ws/v3/c60b0bb42f8a4c6481ecd229eddaca27") .await .unwrap() .interval(Duration::from_millis(3000)); let chain_id = provider.get_chainid().await.unwrap(); let wallet = WALLETS.next().with_chain_id(chain_id.as_u64()); let address = wallet.address(); let provider = SignerMiddleware::new(provider, wallet); generic_pending_txs_test(provider, address).await; } #[cfg(not(feature = "celo"))] async fn generic_pending_txs_test(provider: M, who: Address) { let tx = TransactionRequest::new().to(who).from(who); let pending_tx = provider.send_transaction(tx, None).await.unwrap(); let tx_hash = *pending_tx; let receipt = pending_tx.confirmations(1).await.unwrap().unwrap(); // got the correct receipt assert_eq!(receipt.transaction_hash, tx_hash); } #[tokio::test] #[cfg(not(feature = "celo"))] async fn typed_txs() { let provider = Provider::::try_from("https://rinkeby.infura.io/v3/c60b0bb42f8a4c6481ecd229eddaca27") .unwrap(); let chain_id = provider.get_chainid().await.unwrap(); let wallet = WALLETS.next().with_chain_id(chain_id.as_u64()); let address = wallet.address(); // our wallet let provider = SignerMiddleware::new(provider, wallet); // Uncomment the below and run this test to re-fund the wallets if they get drained. // Would be ideal if we'd have a way to do this automatically, but this should be // happening rarely enough that it doesn't matter. // WALLETS.fund(provider.provider(), 10u32).await; async fn check_tx( pending_tx: ethers_providers::PendingTransaction<'_, P>, expected: u64, ) { let provider = pending_tx.provider(); let receipt = pending_tx.await.unwrap().unwrap(); let tx = provider .get_transaction(receipt.transaction_hash) .await .unwrap() .unwrap(); assert_eq!(receipt.transaction_type, Some(expected.into())); assert_eq!(tx.transaction_type, Some(expected.into())); } let mut nonce = provider.get_transaction_count(address, None).await.unwrap(); let tx = TransactionRequest::new() .from(address) .to(address) .nonce(nonce); nonce += 1.into(); let tx1 = provider .send_transaction(tx.clone(), Some(BlockNumber::Pending.into())) .await .unwrap(); let tx = tx .clone() .nonce(nonce) .from(address) .to(address) .with_access_list(vec![]); nonce += 1.into(); let tx2 = provider .send_transaction(tx, Some(BlockNumber::Pending.into())) .await .unwrap(); let tx = Eip1559TransactionRequest::new() .from(address) .to(address) .nonce(nonce); let tx3 = provider .send_transaction(tx, Some(BlockNumber::Pending.into())) .await .unwrap(); futures_util::join!(check_tx(tx1, 0), check_tx(tx2, 1), check_tx(tx3, 2),); } #[tokio::test] #[cfg(feature = "celo")] async fn test_send_transaction() { // Celo testnet let provider = Provider::::try_from("https://alfajores-forno.celo-testnet.org") .unwrap() .interval(Duration::from_millis(3000u64)); let chain_id = provider.get_chainid().await.unwrap().as_u64(); // Funded with https://celo.org/developers/faucet // Please do not drain this account :) let wallet = "d652abb81e8c686edba621a895531b1f291289b63b5ef09a94f686a5ecdd5db1" .parse::() .unwrap() .with_chain_id(chain_id); let client = SignerMiddleware::new(provider, wallet); let balance_before = client.get_balance(client.address(), None).await.unwrap(); let tx = TransactionRequest::pay(client.address(), 100); let _receipt = client .send_transaction(tx, None) .await .unwrap() .confirmations(3) .await .unwrap(); let balance_after = client.get_balance(client.address(), None).await.unwrap(); assert!(balance_before > balance_after); } #[tokio::test] #[cfg(not(feature = "celo"))] async fn send_transaction_handles_tx_from_field() { use ethers_core::utils::Ganache; // launch ganache let ganache = Ganache::new().spawn(); // grab 2 wallets let signer: LocalWallet = ganache.keys()[0].clone().into(); let other: LocalWallet = ganache.keys()[1].clone().into(); // connect to the network let provider = Provider::try_from(ganache.endpoint()).unwrap(); let provider = SignerMiddleware::new(provider, signer.clone()); // sending a TransactionRequest with a from field of None should result // in a transaction from the signer address let request_from_none = TransactionRequest::new(); let receipt = provider .send_transaction(request_from_none, None) .await .unwrap() .await .unwrap() .unwrap(); let sent_tx = provider .get_transaction(receipt.transaction_hash) .await .unwrap() .unwrap(); assert_eq!(sent_tx.from, signer.address()); // sending a TransactionRequest with the signer as the from address should // result in a transaction from the signer address let request_from_signer = TransactionRequest::new().from(signer.address()); let receipt = provider .send_transaction(request_from_signer, None) .await .unwrap() .await .unwrap() .unwrap(); let sent_tx = provider .get_transaction(receipt.transaction_hash) .await .unwrap() .unwrap(); assert_eq!(sent_tx.from, signer.address()); // sending a TransactionRequest with a from address that is not the signer // should result in a transaction from the specified address let request_from_other = TransactionRequest::new().from(other.address()); let receipt = provider .send_transaction(request_from_other, None) .await .unwrap() .await .unwrap() .unwrap(); let sent_tx = provider .get_transaction(receipt.transaction_hash) .await .unwrap() .unwrap(); assert_eq!(sent_tx.from, other.address()); } #[tokio::test] #[cfg(feature = "celo")] async fn deploy_and_call_contract() { use ethers_contract::ContractFactory; use ethers_core::{ abi::Abi, types::{BlockNumber, Bytes, H256, U256}, utils::Solc, }; use std::sync::Arc; fn compile_contract(name: &str, filename: &str) -> (Abi, Bytes) { let compiled = Solc::new(&format!("./tests/solidity-contracts/{}", filename)) .build() .unwrap(); let contract = compiled.get(name).expect("could not find contract"); (contract.abi.clone(), contract.bytecode.clone()) } let (abi, bytecode) = compile_contract("SimpleStorage", "SimpleStorage.sol"); // Celo testnet let provider = Provider::::try_from("https://alfajores-forno.celo-testnet.org") .unwrap() .interval(Duration::from_millis(6000)); let chain_id = provider.get_chainid().await.unwrap().as_u64(); // Funded with https://celo.org/developers/faucet let wallet = "58ea5643a78c36926ad5128a6b0d8dfcc7fc705788a993b1c724be3469bc9697" .parse::() .unwrap() .with_chain_id(chain_id); let client = SignerMiddleware::new(provider, wallet); let client = Arc::new(client); let factory = ContractFactory::new(abi, bytecode, client); let deployer = factory.deploy(()).unwrap().legacy(); let contract = deployer.block(BlockNumber::Pending).send().await.unwrap(); let value: U256 = contract.method("value", ()).unwrap().call().await.unwrap(); assert_eq!(value, 0.into()); // make a state mutating transaction // gas estimation costs are sometimes under-reported on celo, // so we manually set it to avoid failures let call = contract .method::<_, H256>("setValue", U256::from(1)) .unwrap() .gas(100000); let pending_tx = call.send().await.unwrap(); let _receipt = pending_tx.await.unwrap(); let value: U256 = contract.method("value", ()).unwrap().call().await.unwrap(); assert_eq!(value, 1.into()); } #[derive(Debug, Default)] struct TestWallets { mnemonic: MnemonicBuilder, next: AtomicU8, } impl TestWallets { /// Helper for funding the wallets with an instantiated provider #[allow(unused)] pub async fn fund>(&self, provider: &Provider, n: U) { let addrs = (0..n.into()) .map(|i| self.get(i).address()) .collect::>(); // hardcoded funder address private key, rinkeby let signer = "39aa18eeb5d12c071e5f19d8e9375a872e90cb1f2fa640384ffd8800a2f3e8f1" .parse::() .unwrap() .with_chain_id(provider.get_chainid().await.unwrap().as_u64()); let provider = SignerMiddleware::new(provider, signer); let addr = provider.address(); let mut nonce = provider.get_transaction_count(addr, None).await.unwrap(); let mut pending_txs = Vec::new(); for addr in addrs { println!("Funding wallet {:?}", addr); let tx = TransactionRequest::new() .nonce(nonce) .to(addr) // 0.1 eth per wallet .value(parse_units("1", 18).unwrap()); pending_txs.push( provider .send_transaction(tx, Some(BlockNumber::Pending.into())) .await .unwrap(), ); nonce += 1.into(); } futures_util::future::join_all(pending_txs).await; } pub fn next(&self) -> LocalWallet { let idx = self.next.fetch_add(1, std::sync::atomic::Ordering::SeqCst); let wallet = self.get(idx); // println!("Got wallet {:?}", wallet.address()); wallet } pub fn get>(&self, idx: T) -> LocalWallet { self.mnemonic .clone() .index(idx) .expect("index not found") .build() .expect("cannot build wallet") } }