use ethers_contract::ContractFactory; use ethers_core::{ types::{Address, H256}, utils::Ganache, }; mod common; pub use common::*; #[tokio::test] async fn deploy_and_call_contract() { let (abi, bytecode) = compile(); // launch ganache let _ganache = Ganache::new() .mnemonic("abstract vacuum mammal awkward pudding scene penalty purchase dinner depart evoke puzzle") .spawn(); // Instantiate the clients. We assume that clients consume the provider and the wallet // (which makes sense), so for multi-client tests, you must clone the provider. let client = connect("380eb0f3d505f087e438eca80bc4df9a7faa24f868e69fc0440261a0fc0567dc"); let client2 = connect("cc96601bc52293b53c4736a12af9130abf347669b3813f9ec4cafdf6991b087e"); // create a factory which will be used to deploy instances of the contract let factory = ContractFactory::new(abi, bytecode, &client); // `send` consumes the deployer so it must be cloned for later re-use // (practically it's not expected that you'll need to deploy multiple instances of // the _same_ deployer, so it's fine to clone here from a dev UX vs perf tradeoff) let deployer = factory.deploy("initial value".to_string()).unwrap(); let contract = deployer.clone().send().await.unwrap(); let get_value = contract.method::<_, String>("getValue", ()).unwrap(); let last_sender = contract.method::<_, Address>("lastSender", ()).unwrap(); // the initial value must be the one set in the constructor let value = get_value.clone().call().await.unwrap(); assert_eq!(value, "initial value"); // make a call with `client2` let _tx_hash = contract .connect(&client2) .method::<_, H256>("setValue", "hi".to_owned()) .unwrap() .send() .await .unwrap(); assert_eq!(last_sender.clone().call().await.unwrap(), client2.address()); assert_eq!(get_value.clone().call().await.unwrap(), "hi"); // we can also call contract methods at other addresses with the `at` call // (useful when interacting with multiple ERC20s for example) let contract2_addr = deployer.clone().send().await.unwrap().address(); let contract2 = contract.at(contract2_addr); let init_value: String = contract2 .method::<_, String>("getValue", ()) .unwrap() .call() .await .unwrap(); let init_address = contract2 .method::<_, Address>("lastSender", ()) .unwrap() .call() .await .unwrap(); assert_eq!(init_address, Address::zero()); assert_eq!(init_value, "initial value"); }