ethers-rs/ethers-middleware/tests/nonce_manager.rs

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#![cfg(not(target_arch = "wasm32"))]
#[tokio::test]
#[cfg(not(feature = "celo"))]
async fn nonce_manager() {
use ethers_core::types::*;
use ethers_middleware::{nonce_manager::NonceManagerMiddleware, signer::SignerMiddleware};
use ethers_providers::Middleware;
use ethers_signers::{LocalWallet, Signer};
use std::time::Duration;
let provider = ethers_providers::RINKEBY.provider().interval(Duration::from_millis(2000u64));
let chain_id = provider.get_chainid().await.unwrap().as_u64();
let wallet = std::env::var("RINKEBY_PRIVATE_KEY")
.unwrap()
.parse::<LocalWallet>()
.unwrap()
.with_chain_id(chain_id);
let address = wallet.address();
let provider = SignerMiddleware::new(provider, wallet);
// the nonce manager must be over the Client so that it overrides the nonce
// before the client gets it
let provider = NonceManagerMiddleware::new(provider, address);
let nonce = provider
.get_transaction_count(address, Some(BlockNumber::Pending.into()))
.await
.unwrap()
.as_u64();
let num_tx = 3;
let mut tx_hashes = Vec::with_capacity(num_tx);
for _ in 0..num_tx {
let tx = provider
.send_transaction(
Eip1559TransactionRequest::new().to(address).value(100u64).chain_id(chain_id),
None,
)
.await
.unwrap();
tx_hashes.push(*tx);
}
// sleep a bit to ensure there's no flakiness in the test
std::thread::sleep(std::time::Duration::new(5, 0));
let mut nonces = Vec::with_capacity(num_tx);
for tx_hash in tx_hashes {
nonces.push(provider.get_transaction(tx_hash).await.unwrap().unwrap().nonce.as_u64());
}
assert_eq!(nonces, (nonce..nonce + (num_tx as u64)).collect::<Vec<_>>())
}