truffle & solidity 在测试中无法访问 function

Question

after I run command truffle test I got this error

TypeError: _character.getName is not a function

my test file

let Game = artifacts.require("./Game.sol");
let Character = artifacts.require("./Character.sol");

const PROVIDED_NAME = "TEST";

contract("Game", (accounts) => {

    let creatorAccount = accounts[0];

    it("should create a character with the name provided", () => {
        let _game;
        let _character;

        return Game.deployed()
            .then(instance => {
                _game = instance;
                return _game.createCharacter(PROVIDED_NAME, { from: creatorAccount });
            })
            .then(result => {
                return _game.getCharacter();
            })
            .then(character => {
                _character = Character.at(character);
                return _character.getName();
            })
            .then(name => {
                assert.equal(name, PROVIDED_NAME, "Failed to create a character with the provided name");
            });
    });
});

and this my Character.sol file

// SPDX-License-Identifier: MIT
pragma solidity 0.8.15;

contract Character {
    string private _name;

    constructor(string memory name) public {
        _name = name;
    }

    function getName() public view returns (string memory) {
        return _name;
    }
}

I'm using

Truffle v5.5.20 (core: 5.5.20) Ganache v7.2.0 Solidity - 0.8.15 (solc-js) Node v16.15.1 Web3.js v1.7.4

Answer 1

I think the issue is with the way how you require them. you should not pass the directory path, instead pass the name of the contracts, truffle will assign them.

let Game = artifacts.require("NameOfGamecontract");
let Character = artifacts.require("NameOfCharacterContract");