72 lines
2.2 KiB
Rust
72 lines
2.2 KiB
Rust
use ethers_core::{
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abi::{Abi, Detokenize, InvalidOutputType, Token},
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types::{Address, Bytes},
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};
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use ethers_contract::{Contract, ContractFactory};
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use ethers_core::utils::{Ganache, GanacheInstance, Solc};
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use ethers_providers::{Http, Provider};
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use ethers_signers::{Client, Wallet};
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use std::convert::TryFrom;
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// Note: We also provide the `abigen` macro for generating these bindings automatically
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#[derive(Clone, Debug)]
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pub struct ValueChanged {
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pub old_author: Address,
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pub new_author: Address,
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pub old_value: String,
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pub new_value: String,
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}
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impl Detokenize for ValueChanged {
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fn from_tokens(tokens: Vec<Token>) -> Result<ValueChanged, InvalidOutputType> {
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let old_author: Address = tokens[1].clone().to_address().unwrap();
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let new_author: Address = tokens[1].clone().to_address().unwrap();
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let old_value = tokens[2].clone().to_string().unwrap();
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let new_value = tokens[3].clone().to_string().unwrap();
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Ok(Self {
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old_author,
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new_author,
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old_value,
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new_value,
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})
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}
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}
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/// compiles the test contract
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pub fn compile() -> (Abi, Bytes) {
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let compiled = Solc::new("./tests/contract.sol").build().unwrap();
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let contract = compiled
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.get("SimpleStorage")
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.expect("could not find contract");
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(contract.abi.clone(), contract.bytecode.clone())
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}
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/// connects the private key to http://localhost:8545
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pub fn connect(private_key: &str) -> Client<Http, Wallet> {
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let provider = Provider::<Http>::try_from("http://localhost:8545").unwrap();
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private_key.parse::<Wallet>().unwrap().connect(provider)
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}
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/// Launches a ganache instance and deploys the SimpleStorage contract
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pub async fn deploy<'a>(
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client: &'a Client<Http, Wallet>,
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abi: Abi,
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bytecode: Bytes,
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) -> (GanacheInstance, Contract<'a, Http, Wallet>) {
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let ganache = Ganache::new()
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.mnemonic("abstract vacuum mammal awkward pudding scene penalty purchase dinner depart evoke puzzle")
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.spawn();
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let factory = ContractFactory::new(abi, bytecode, client);
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let contract = factory
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.deploy("initial value".to_string())
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.unwrap()
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.send()
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.await
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.unwrap();
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(ganache, contract)
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}
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