Foundry Workshop

readme.MD

Foundry Installation

https://book.getfoundry.sh/getting-started/installation

curl -L https://foundry.paradigm.xyz | bash

This will download foundryup. Then install Foundry by running

foundryup

Install Dependency

forge install @openzeppelin/openzeppelin-contracts
forge install dapphub/ds-test
forge install foundry-rs/forge-std

Fork Test

forge test --fork-url https://bsc-dataseed1.binance.org/ --match-path 'test/fork/*.t.sol' -vv

Certificate.sol

// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.9;

import "@openzeppelin/contracts/token/ERC721/ERC721.sol";

contract Certificate is ERC721 {
    constructor() ERC721("Certificate", "CERT") {}

    function mint(address to, uint256 tokenId) public {
        _mint(to, tokenId);
    }
}

Certificate.t.sol

// SPDX-License-Identifier: UNLICENSED
pragma solidity 0.8.9;

import "../contracts/Certificate.sol";
import  "../lib/ds-test/src/test.sol";

contract Certificate_Test is DSTest {

    Certificate certificate;

    function setUp() external {
        certificate = new Certificate();
    }

    function testName() external {
        string memory name = certificate.name();
        emit log_named_string("name", name);
    }
    
    function testMint() external {
        certificate.mint(address(this), 1);
        assertEq(certificate.balanceOf(address(this)), 1);
    }
}

Fork.t.sol

// SPDX-License-Identifier: UNLICENSED
pragma solidity 0.8.9;

import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import  "../../lib/ds-test/src/test.sol";
import {Vm} from "../../lib/forge-std/src/vm.sol";

contract Fork_Test is DSTest {

    Vm internal constant vm = Vm(0x7109709ECfa91a80626fF3989D68f67F5b1DD12D);

    ERC20 busd = ERC20(0xe9e7CEA3DedcA5984780Bafc599bD69ADd087D56);

    function testBalance() external {
        uint256 bal = busd.balanceOf(0x8894E0a0c962CB723c1976a4421c95949bE2D4E3);
        emit log_named_uint("bal", bal);

        // transfer

        // expect balance after transfer
    }

}

foundry.toml

[profile.default]
src = 'contracts'
out = 'out'
libs = ['lib']
test = 'test'

remappings.txt

@openzeppelin/=lib/openzeppelin-contracts/