Program Deployment
How to deploy and call a simple program
Complete Test
use litesvm::LiteSVM;
use solana_sdk::{
instruction::{AccountMeta, Instruction},
pubkey::Pubkey,
signature::{Keypair, Signer},
transaction::Transaction,
};
#[test]
fn test_program_deployment() {
let mut svm = LiteSVM::new();
// Deploy the program
let program_id = Pubkey::new_unique();
let program_bytes = include_bytes!("../target/deploy/hello_world.so");
svm.add_program(program_id, program_bytes).unwrap();
// Create payer account
let payer = Keypair::new();
svm.airdrop(&payer.pubkey(), 10_000_000_000).unwrap();
// Create instruction to call program
let instruction = Instruction {
program_id,
accounts: vec![
AccountMeta::new(payer.pubkey(), true),
],
data: vec![], // Program-specific data
};
// Send transaction
let tx = Transaction::new_signed_with_payer(
&[instruction],
Some(&payer.pubkey()),
&[&payer],
svm.latest_blockhash(),
);
let result = svm.send_transaction(tx).unwrap();
// Verify program was called
assert!(result.logs.iter().any(|log|
log.contains(&format!("Program {} invoke", program_id))
));
println!("Program called successfully!");
println!("Logs:\n{}", result.pretty_logs());
}
Key Points
- Program Deployment: Use
add_program()
to deploy a program from bytes - include_bytes!: Embeds the compiled program at compile time
- Program ID: Use the keypair from
target/deploy/
- Instructions: Create custom instructions with program ID, accounts, and data
- Log Verification: Check transaction logs to verify program execution
For more detailed deployment information, read this section.