Trdelník

Trdelník is Rust based testing framework providing several convenient developer tools for testing Solana programs written in Anchor.

Trdelnik client - build and deploy an Anchor program to a local cluster and run a test suite against it;
Trdelnik console - built-in console to give developers a command prompt for quick program interaction;
Trdelnik fuzz - property-based and stateful testing;
Trdelnik explorer - exploring a ledger changes.

Dependencies

Install Rust (nightly release)
Install Solana tool suite (stable release)
Install Anchor

Installation

Currently Trdelnik is only available as a beta release, we are working hard toward the first official release coming within a few days.

cargo install trdelnik-cli

# or the specific version

cargo install --version <version> trdelnik-cli

Usage

# navigate to your project root directory
trdelnik init
# it will generate `.program_client` and `trdelnik-tests` directories with all the necessary files
trdelnik test
# want more?
trdelnik --help

How to write tests?

// <my_project>/trdelnik-tests/tests/test.rs
// @todo: do not forget to add all necessary dependencies to the generated `trdelnik-tests/Cargo.toml`
use program_client::my_instruction;
use trdelnik_client::*;
use my_program;

#[throws]
#[fixture]
async fn init_fixture() -> Fixture {
  // create a test fixture
  let mut fixture = Fixture {
    client: Client::new(system_keypair(0)),
    program: program_keypair(1),
    state: keypair(42),
  };
  // deploy a tested program
  fixture.deploy().await?;
  // call instruction init
  my_instruction::initialize(
    &fixture.client,
    fixture.state.pubkey(),
    fixture.client.payer().pubkey(),
    System::id(),
    Some(fixture.state.clone()),
  ).await?;
  fixture
}

#[trdelnik_test]
async fn test_happy_path(#[future] init_fixture: Result<Fixture>) {
  let fixture = init_fixture.await?;
  // call the instruction
  my_instruction::do_something(
    &fixture.client,
    "dummy_string".to_owned(),
    fixture.state.pubkey(),
    None,
  ).await?;
  // check the test result
  let state = fixture.get_state().await?;
  assert_eq!(state.something_changed, "yes");
}

Skipping tests

You can add the #[ignore] macro to skip the test.

#[trdelnik_test]
#[ignore]
async fn test() {}

Testing programs with associated token accounts

Trdelnik does not export anchor-spl and spl-associated-token-account, so you have to add it manually.

# <my-project>/trdelnik-tests/Cargo.toml
# import the correct versions manually
anchor-spl = "0.24.2"
spl-associated-token-account = "1.0.3"

// <my-project>/trdelnik-tests/tests/test.rs
use anchor_spl::token::Token;
use spl_associated_token_account;

async fn init_fixture() -> Fixture {
  // ...
  let account = keypair(1);
  let mint = keypair(2);
  // constructs a token mint
  client
    .create_token_mint(&mint, mint.pubkey(), None, 0)
    .await?;
  // constructs associated token account
  let token_account = client
    .create_associated_token_account(&account, mint.pubkey())
    .await?;
  let associated_token_program = spl_associated_token_account::id();
  // derives the associated token account address for the given wallet and mint
  let associated_token_address = spl_associated_token_account::get_associated_token_address(&account.pubkey(), mint);
  Fixture {
    // ...
    token_program: Token::id(),
  }
}

The trdelnik init command generated a dummy test suite for you.
For more details, see the complete test implementation.

Supported versions

We support Anchor and Solana versions specified in the table below.

Trdelnik CLI	Anchor	Solana
`latest`	`>=0.24`	`>=1.9`

Please make sure you are using the correct versions.

Roadmap

Q1/22 Trdelnik announcement at Solana Hacker House Prague
- Trdelnik client available for testing
Q2/22 Trdelnik explorer available
Q2/22 Trdelnik client and explorer introduced at Solana Hacker House Barcelona
Q3/22 Trdelnik console available
Q4/22 Trdelnik fuzz available

Awards

Marinade Community Prize - winner of the Marinade grant for the 2022 Solana Riptide Hackathon.

Contribution

Thank you for your interest in contributing to Trdelník! Please see the CONTRIBUTING.md to learn how.

License

This project is licensed under the MIT license.

trdelnik-client 0.1.5