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Intro to testing and security of smart contracts with Foundry

Introduction

This is a repository where you can learn the fundamental steps to use Foundry, a smart contract testing framework.

A contract to mine NFTs is used as an example, and we will see step by step how Foundry allows us to test it to find flaws and security vulnerabilities.

Getting Started

Requirements

  • Download Foundry with the command: curl -L https://foundry.paradigm.xyz | bash
  • Run the foundryup command
  • Verify the installation of the three most important Foundry tools (forge, cast and chisel) by running the commands:
forge --version
> forge 0.2.0 

chisel --version
> chisel 0.1.1 

cast --version
> cast 0.2.0

Setup

Clone this repo

git clone https://github.com/pinalikefruit/foundry-testing
cd foundry-testing

forge test

Commands

Install

# Instalation
curl -L [https://foundry.paradigm.xyz](https://foundry.paradigm.xyz/) | bash
foundryup

#Initialization
forge init

#If you want to create a new project using a different template, you would pass the --template flag, like so:
forge init --template https://github.com/foundry-rs/forge-template hello_template

Basic commands


forge build  # Compile
forge test   # test
forge test —mt `funtion_name`
forge test --match-path `direction_file`
  • Add solidity version foundry.toml
solc_version = "0.8.18"
  • Remapping
forge remappings
forge install rari-capital/solmate
forge update lib/solmate
forge remove solmate ## Remove library

npm i @openzeppelin/contracts

or

forge remappings #Then the install dependencies
forge remappings > remappings.txt
forge install OpenZeppelin/openzeppelin-contracts
  • Formatter
forge fmt
  • console (Counter, test, log int)
forge test --match-path test/Console.t.sol -vv

forge create [file.sol] --interactive forge create [file.sol] --private-key 0x.... forge script script/DeploySimpleStorage.s.sol --rpc-url http://127.0.0.1:8545 --broadcast --private-key 0x cast --to-basae 0x714c2 dec