ethers-rs/ethers-contract/tests/common/mod.rs

58 lines
1.9 KiB
Rust

mod derive;
use ethers_core::{
abi::Abi,
types::{Address, Bytes},
};
use ethers_contract::{Contract, ContractFactory, EthEvent};
use ethers_core::utils::{GanacheInstance, Solc};
use ethers_middleware::signer::SignerMiddleware;
use ethers_providers::{Http, Middleware, Provider};
use ethers_signers::{LocalWallet, Signer};
use std::{convert::TryFrom, sync::Arc, time::Duration};
// Note: The `EthEvent` derive macro implements the necessary conversion between `Tokens` and
// the struct
#[derive(Clone, Debug, EthEvent)]
pub struct ValueChanged {
#[ethevent(indexed)]
pub old_author: Address,
#[ethevent(indexed)]
pub new_author: Address,
pub old_value: String,
pub new_value: String,
}
/// compiles the given contract and returns the ABI and Bytecode
pub 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())
}
type HttpWallet = SignerMiddleware<Provider<Http>, LocalWallet>;
/// connects the private key to http://localhost:8545
pub fn connect(ganache: &GanacheInstance, idx: usize) -> Arc<HttpWallet> {
let provider = Provider::<Http>::try_from(ganache.endpoint())
.unwrap()
.interval(Duration::from_millis(10u64));
let wallet: LocalWallet = ganache.keys()[idx].clone().into();
let wallet = wallet.with_chain_id(1u64);
Arc::new(SignerMiddleware::new(provider, wallet))
}
/// Launches a ganache instance and deploys the SimpleStorage contract
pub async fn deploy<M: Middleware>(client: Arc<M>, abi: Abi, bytecode: Bytes) -> Contract<M> {
let factory = ContractFactory::new(abi, bytecode, client);
factory
.deploy("initial value".to_string())
.unwrap()
.legacy()
.send()
.await
.unwrap()
}