1 unstable release
0.1.0 | Apr 2, 2024 |
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0.0.1 |
|
#1970 in Magic Beans
136 downloads per month
1MB
1.5K
SLoC
Contains (ELF lib, 535KB) src/spl/programs/spl_token_2022-1.0.0.so, (ELF lib, 135KB) src/spl/programs/spl_token-3.5.0.so, (ELF lib, 105KB) spl_associated_token_account-1.1.1.so, (ELF lib, 75KB) src/spl/programs/spl_memo-3.0.0.so, (ELF lib, 18KB) src/spl/programs/spl_memo-1.0.0.so, (ELF lib, 21KB) tests/programs_bytes/hello_world.so
LiteSVM
📍 Overview
litesvm
is a fast and lightweight Solana VM simulator for testing programs. It takes inspiration from the good parts of the solana-program-test
crate, while offering superior performance and developer experience.
🚀 Getting Started
🔧 Installation
cargo add --dev litesvm
🤖 Minimal Example
use litesvm::LiteSVM;
use solana_program::{message::Message, pubkey::Pubkey, system_instruction::transfer};
use solana_sdk::{signature::Keypair, signer::Signer, transaction::Transaction};
#[test]
fn system_transfer() {
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);
let from_account = svm.get_account(&from);
let to_account = svm.get_account(&to);
assert!(tx_res.is_ok());
assert_eq!(from_account.unwrap().lamports, 4936);
assert_eq!(to_account.unwrap().lamports, 64);
}
Dependencies
~27–43MB
~753K SLoC