@safe-global/safe-contracts/test/core/Safe.Incoming.spec.ts

Ethereum multisig contract

import { expect } from "chai";
import hre, { deployments, waffle } from "hardhat";
import "@nomiclabs/hardhat-ethers";
import { deployContract, getSafeWithOwners } from "../utils/setup";
import { parseEther } from "@ethersproject/units";

describe("Safe", async () => {
    const [user1] = waffle.provider.getWallets();

    const setupTests = deployments.createFixture(async ({ deployments }) => {
        await deployments.fixture();
        const source = `
        contract Test {
            function transferEth(address payable safe) public payable returns (bool success) {
                safe.transfer(msg.value);
            }
            function sendEth(address payable safe) public payable returns (bool success) {
                require(safe.send(msg.value));
            }
            function callEth(address payable safe) public payable returns (bool success) {
                (bool success,) = safe.call{ value: msg.value }("");
                require(success);
            }
        }`;
        return {
            safe: await getSafeWithOwners([user1.address]),
            caller: await deployContract(user1, source),
        };
    });

    describe("fallback", async () => {
        it("should be able to receive ETH via transfer", async () => {
            const { safe, caller } = await setupTests();
            // Notes: It is not possible to load storage + a call + emit event with 2300 gas
            await expect(caller.transferEth(safe.address, { value: parseEther("1") })).to.be.reverted;
        });

        it("should be able to receive ETH via send", async () => {
            const { safe, caller } = await setupTests();
            // Notes: It is not possible to load storage + a call + emit event with 2300 gas
            await expect(caller.sendEth(safe.address, { value: parseEther("1") })).to.be.reverted;
        });

        it("should be able to receive ETH via call", async () => {
            const { safe, caller } = await setupTests();
            await expect(
                caller.callEth(safe.address, {
                    value: parseEther("1"),
                }),
            )
                .to.emit(safe, "SafeReceived")
                .withArgs(caller.address, parseEther("1"));
            await expect(await hre.ethers.provider.getBalance(safe.address)).to.be.deep.eq(parseEther("1"));
        });

        it("should be able to receive ETH via transaction", async () => {
            const { safe } = await setupTests();
            await expect(
                user1.sendTransaction({
                    to: safe.address,
                    value: parseEther("1"),
                }),
            )
                .to.emit(safe, "SafeReceived")
                .withArgs(user1.address, parseEther("1"));
            await expect(await hre.ethers.provider.getBalance(safe.address)).to.be.deep.eq(parseEther("1"));
        });

        it("should throw for incoming eth with data", async () => {
            const { safe } = await setupTests();
            await expect(user1.sendTransaction({ to: safe.address, value: 23, data: "0xbaddad" })).to.be.revertedWith(
                "fallback function is not payable and was called with value 23",
            );
        });
    });
});