Foundry Seminar

join the dev telegram: https://t.me/foundry_rs join the support telegram: https://t.me/foundry_support

Agenda

1. wtf is foundry and y it's dope
2. quick setup
3. writing tests
4. fuzzing in foundry & why it's valuable
5. using traces
6. using the debugger
7. future of foundry
8. Q&A

Intro

wtf is foundry

"Foundry is a blazing fast, portable and modular toolkit for Ethereum application development written in Rust."

Has 2 core utilities:

1. forge
2. cast

forge is primarily what we will cover today, it is an Ethereum smart contract testing framework, like Truffle, Hardhat, and dapptools.

cast is a collection of utilities for interacting with smart contracts, endcoding, decoding, and understanding EVM ecosystem semantics.

why foundry is dope

Think about any language you have ever written -- did you write your tests in another language? How can you expect to master a language when you spend sometimes greater than half your development time writing in another language?

This is one of the core problems foundry aims to solve: write your tests in the same language as your production software.

Context switching also reduces productivity; being able to stay in solidity can speed up development. Speaking of speed, foundry is fast. Really freakin' fast. The benchmarks below are even a little outdated (we got faster :)).

Project	Forge	DappTools	Speedup
guni-lev	28.6s	2m36s	5.45x
solmate	6s	46s	7.66x
geb	11s	40s	3.63x
vaults	1.4s	5.5s	3.9x

And it is only getting faster. A new evm backend is being integrated right now and early benchmarks have it close to a 50% speedup.

cool features

1. FAST
2. mainnet forking
3. cheatcodes
4. debugger
5. traces
6. fuzzing
7. multi compiler version support

LETS HOP IN!

Repo will be available after the talk.

Install & Setup

curl -L https://foundry.paradigm.xyz | bash foundryup forge init foundry_seminar

Feel free to follow along :)