错误调用协作者契约

Question

当合同调用另一个注入的合同时，我得到以下错误：

错误:调用还原异常https://links.ethers.org/v5-errors-CALL_例外:请参阅

我不确定合作合同是否被正确地注入。从测试输出来看，这似乎是问题所在(测试输出中地址为零的原因)。总之，这是主要合同：

// SPDX-License-Identifier: MIT
pragma solidity 0.8.13;


import "hardhat/console.sol";
import "./TestDependency.sol";

contract TestContract
{
    TestDependency private testDep;

    function setDependency(address dependencyAddress) external
    {
        testDep = TestDependency(dependencyAddress);
    }

    function getDependency() external view returns (address)
    {
        return address(testDep);
    }

    function internalHello() public view returns (string memory) {
        console.log("internal hello function called");
        return "internal hello";
    }

    function helloWithDependency() public view returns (string memory) {
        console.log("helloWithDependency function called");
        return testDep.getConstant();
    }
}

扶养合同：

// SPDX-License-Identifier: MIT
pragma solidity 0.8.13;

import "hardhat/console.sol";

contract TestDependency
{
    function getConstant() public view returns (string memory) {
        console.log("getConstant function called");
        return "test123";
    }
}

还有一项测试：

const { expect } = require("chai");
const { ethers } = require("hardhat");

describe("Test", function () {
  it("Test dependency", async function () {

    const TestContract = await ethers.getContractFactory("TestContract");
    const testContract = await TestContract.deploy();
    await testContract.deployed();

    const TestDependency = await ethers.getContractFactory("TestDependency");
    const testDependency = await TestDependency.deploy();
    await testDependency.deployed();

    testContract.setDependency(testDependency);

    console.log("testContract.address:" + testContract.address);
    console.log("testDep.address:" + testDependency.address);    
    console.log("testDep injected dependency address:" + testContract.getDependency());    

    
    let internalHello = await testContract.internalHello();
    console.log("internalHello response:" + internalHello);

    let helloResp = await testContract.helloWithDependency();
    console.log("helloWithDependency response:" + helloResp);
  });
});

我得到了以下输出：

npx hardhat test test/test-dependency-test.js 


  Test
testContract.address:0x5FbDB2315678afecb367f032d93F642f64180aa3
testDep.address:0xe7f1725E7734CE288F8367e1Bb143E90bb3F0512
testDep injected dependency address:0x0000000000000000000000000000000000000000
internal hello function called
internalHello response:internal hello
helloWithDependency function called
    1) Test dependency


  0 passing (18s)
  1 failing

  1) Test
       Test dependency:
     **Error: call revert exception [ See: https://links.ethers.org/v5-errors-CALL_EXCEPTION ] (method="helloWithDependency()", data="0x", errorArgs=null, errorName=null, errorSignature=null, reason=null, code=CALL_EXCEPTION, version=abi/5.6.2)**
      at Logger.makeError (node_modules/@ethersproject/logger/src.ts/index.ts:261:28)
      at Logger.throwError (node_modules/@ethersproject/logger/src.ts/index.ts:273:20)
      at Interface.decodeFunctionResult (node_modules/@ethersproject/abi/src.ts/interface.ts:427:23)
      at Contract.<anonymous> (node_modules/@ethersproject/contracts/src.ts/index.ts:400:44)
      at step (node_modules/@ethersproject/contracts/lib/index.js:48:23)
      at Object.next (node_modules/@ethersproject/contracts/lib/index.js:29:53)
      at fulfilled (node_modules/@ethersproject/contracts/lib/index.js:20:58)

这可能是个新手的问题，但我在短期内对此很感兴趣。

提前谢谢你，马尔科

Answer 1

你离答案不远，检查一下你的

testContract.setDependency(testDependency);

to be replaced with
await testContract.setDependency(testDependency.address);