`anchor-litesvm` is a small extension to [LiteSVM](https://github.com/LiteSVM/litesvm) that enables using both Anchor and LiteSVM with minimal code changes. It does this by exporting a `LitesvmProvider` class that can be used as a replacement for `AnchorP
npm install anchor-litesvmanchor-litesvm is a small extension to LiteSVM
that enables using both Anchor and LiteSVM with minimal code changes. It does this by exporting a LitesvmProvider class that can be used as a replacement for AnchorProvider during testing.
litesvm is synchronous because it is entirely compute-bound. However, anchor-litesvm uses async because
it implements interfaces that require async. If you would like to avoid async tests, you can simply
use regular litesvm without anchor-litesvm.
Here's an example using LitesvmProvider to test an Anchor program:
``typescript
import { fromWorkspace, LiteSVMProvider } from "anchor-litesvm";
import { Keypair, PublicKey } from "@solana/web3.js";
import { BN, Program, Wallet } from "@coral-xyz/anchor";
import { Puppet } from "./anchor-example/puppet";
const IDL = require("./anchor-example/puppet.json");
test("anchor", async () => {
const client = fromWorkspace("tests/anchor-example");
const provider = new LiteSVMProvider(client);
const puppetProgram = new Program
const puppetKeypair = Keypair.generate();
await puppetProgram.methods
.initialize()
.accounts({
puppet: puppetKeypair.publicKey,
})
.signers([puppetKeypair])
.rpc();
const data = new BN(123456);
await puppetProgram.methods
.setData(data)
.accounts({
puppet: puppetKeypair.publicKey,
})
.rpc();
const dataAccount = await puppetProgram.account.data.fetch(
puppetKeypair.publicKey,
);
expect(dataAccount.data.eq(new BN(123456)));
});
`
`
yarn add anchor-litesvm