Rust Testing Framework for Solana
Info
This is a beta version of the Solana Toolkit, and is still a WIP. Please post all feedback as a GitHub issue here.
Add Dependency #
Navigate to your smart contract directory and run:
cargo add --dev litesvmLiteSVM Overview #
LiteSVM is a fast and lightweight library
for testing Solana programs. It works by creating an in-process Solana VM
optimized for program developers. This makes it much faster to run and compile
than alternatives like
solana-program-test and
solana-test-validator. In a further break
from tradition, it has an ergonomic API with sane defaults and extensive
configurability for those who want it.
Minimal Example #
use litesvm::LiteSVM;
use solana_program::{message::Message, pubkey::Pubkey, system_instruction::transfer};
use solana_sdk::{signature::Keypair, signer::Signer, transaction::Transaction};
let from_keypair = Keypair::new();
let from = from_keypair.pubkey();
let to = Pubkey::new_unique();
let mut svm = LiteSVM::new();
svm.airdrop(&from, 10_000).unwrap();
let instruction = transfer(&from, &to, 64);
let tx = Transaction::new(
&[&from_keypair],
Message::new(&[instruction], Some(&from)),
svm.latest_blockhash(),
);
let tx_res = svm.send_transaction(tx).unwrap();
let from_account = svm.get_account(&from);
let to_account = svm.get_account(&to);
assert_eq!(from_account.unwrap().lamports, 4936);
assert_eq!(to_account.unwrap().lamports, 64);