---
title: Quick Start
description: Learn how to test your Solana program with LiteSVM
---

## Setup

Before testing your program, ensure you:

1. Build your program to generate the `.so` file
2. Add `litesvm` as a dev dependency to the `Cargo.toml` file
3. Add any additional dev dependencies that may be needed, like `solana-sdk` and
   `litesvm-token`
4. Create a test file in your `tests` directory

## Basic Program Test Layout

Here are all the basic steps needed to call and execute an instruction in a
Solana program.

```rust title="tests/program_test.rs"
use litesvm::LiteSVM;
use solana_sdk::{
    instruction::{AccountMeta, Instruction},
    pubkey::Pubkey,
    signature::{Keypair, Signer},
    transaction::Transaction,
};

use my_program;

#[test]
fn test_my_program() {
    // Initialize the test environment
    let mut svm = LiteSVM::new();

    // Deploy your program to the test environment
    let program_id = Pubkey::from(my_program::ID);
    let program_bytes = include_bytes!("../../../target/deploy/my_program.so");
    svm.add_program(program_id, program_bytes);

    // Create and fund test accounts
    let payer = Keypair::new();
    svm.airdrop(&payer.pubkey(), 10_000_000_000).unwrap();

    // Create your instruction
    let instruction = Instruction {
        program_id,
        accounts: vec![
            AccountMeta::new(payer.pubkey(), true),
        ],
        data: vec![],
    };

    // Build transaction
    let tx = Transaction::new_signed_with_payer(
        &[instruction],
        Some(&payer.pubkey()),
        &[&payer],
        svm.latest_blockhash(),
    );

    // Send transaction
    let result = svm.send_transaction(tx).unwrap();

    // Check transaction succeeded
    println!("Transaction logs: {:?}", result.logs);

    println!("Program executed successfully!");
}
```

The default test environment that is generated with `LiteSVM::new()` includes
all runtime features enabled, default sysvars, precompiles, spl programs,
sigverify, and all built in programs, like the system program.

<Callout type="info">
  If you want to interact with any program that is not included in the default
  test environment, you must deploy that program to the test environment.
</Callout>

## Next Steps

In the next section, we'll learn all about deploying programs to the litesvm
test environment.