use ethers_contract::EthAbiType; use ethers_core::{ types::{ transaction::eip712::{ EIP712Domain as Domain, Eip712, EIP712_DOMAIN_TYPE_HASH, EIP712_DOMAIN_TYPE_HASH_WITH_SALT, }, Address, H160, U256, }, utils::{keccak256, parse_ether}, }; use ethers_derive_eip712::*; #[test] fn test_derive_eip712() { #[derive(Debug, Clone, Eip712, EthAbiType)] #[eip712( name = "Radicle", version = "1", chain_id = 1, verifying_contract = "0x0000000000000000000000000000000000000001" )] pub struct Puzzle { pub organization: H160, pub contributor: H160, pub commit: String, pub project: String, } let puzzle = Puzzle { organization: "0000000000000000000000000000000000000000" .parse::() .expect("failed to parse address"), contributor: "0000000000000000000000000000000000000000" .parse::() .expect("failed to parse address"), commit: "5693b7019eb3e4487a81273c6f5e1832d77acb53".to_string(), project: "radicle-reward".to_string(), }; let hash = puzzle.encode_eip712().expect("failed to encode struct"); assert_eq!(hash.len(), 32) } #[test] fn test_struct_hash() { #[derive(Debug, Clone, Eip712, EthAbiType)] #[eip712( name = "Radicle", version = "1", chain_id = 1, verifying_contract = "0x0000000000000000000000000000000000000001", salt = "1234567890" )] pub struct EIP712Domain { name: String, version: String, chain_id: U256, verifying_contract: Address, } let domain = Domain { name: "Radicle".to_string(), version: "1".to_string(), chain_id: U256::from(1), verifying_contract: H160::from(&[0; 20]), salt: None, }; let domain_test = EIP712Domain { name: "Radicle".to_string(), version: "1".to_string(), chain_id: U256::from(1), verifying_contract: H160::from(&[0; 20]), }; assert_eq!(EIP712_DOMAIN_TYPE_HASH, EIP712Domain::type_hash().unwrap()); assert_eq!(domain.separator(), domain_test.struct_hash().unwrap()); } #[test] fn test_derive_eip712_nested() { #[derive(Debug, Clone, Eip712, EthAbiType)] #[eip712( name = "MyDomain", version = "1", chain_id = 1, verifying_contract = "0x0000000000000000000000000000000000000001" )] pub struct MyStruct { foo: String, bar: U256, addr: Address, // #[eip712] // Todo: Support nested Eip712 structs // nested: MyNestedStruct, } #[derive(Debug, Clone, Eip712, EthAbiType)] #[eip712( name = "MyDomain", version = "1", chain_id = 1, verifying_contract = "0x0000000000000000000000000000000000000001" )] pub struct MyNestedStruct { foo: String, bar: U256, addr: Address, } let my_struct = MyStruct { foo: "foo".to_string(), bar: U256::from(1), addr: Address::from(&[0; 20]), // nested: MyNestedStruct { // foo: "foo".to_string(), // bar: U256::from(1), // addr: Address::from(&[0; 20]), // }, }; let hash = my_struct.struct_hash().expect("failed to hash struct"); assert_eq!(hash.len(), 32) } #[test] fn test_uniswap_v2_permit_hash() { // See examples/permit_hash.rs for comparison // the following produces the same permit_hash as in the example #[derive(Debug, Clone, Eip712, EthAbiType)] #[eip712( name = "Uniswap V2", version = "1", chain_id = 1, verifying_contract = "0xB4e16d0168e52d35CaCD2c6185b44281Ec28C9Dc" )] struct Permit { owner: Address, spender: Address, value: U256, nonce: U256, deadline: U256, } let permit = Permit { owner: "0x617072Cb2a1897192A9d301AC53fC541d35c4d9D" .parse() .unwrap(), spender: "0x2819c144D5946404C0516B6f817a960dB37D4929" .parse() .unwrap(), value: parse_ether(10).unwrap(), nonce: U256::from(1), deadline: U256::from(3133728498 as u32), }; let permit_hash = permit.encode_eip712().unwrap(); assert_eq!( hex::encode(permit_hash), "7b90248477de48c0b971e0af8951a55974733455191480e1e117c86cc2a6cd03" ); } #[test] fn test_domain_hash_constants() { assert_eq!( EIP712_DOMAIN_TYPE_HASH, keccak256( "EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)" ) ); assert_eq!( EIP712_DOMAIN_TYPE_HASH_WITH_SALT, keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract,bytes32 salt)") ); }