anchor-bankrun

anchor-bankrun

anchor-bankrun is a small but powerful extension to solana-bankrun that enables using both Anchor and Bankrun with only a one-line code change. It does this by exporting a BankrunProvider class that can be used as a drop-in replacement for AnchorProvider during testing.

Anchor version note

Recent versions of anchor-bankrun use the Anchor v0.30 IDL, which is not backwards compatible with older Anchor IDLs. If you have an older IDL, use anchor-bankrun v0.3.0.

Usage

Here's an example using BankrunProvider to test an Anchor program:

import { BankrunProvider, startAnchor } from "anchor-bankrun";
import { Keypair, PublicKey } from "@solana/web3.js";
import { BN, Program } from "@coral-xyz/anchor";
import { Puppet } from "./anchor-example/puppet";
const IDL = require("./anchor-example/puppet.json");

test("anchor", async () => {
	const context = await startAnchor("tests/anchor-example", [], []);

	const provider = new BankrunProvider(context);

	const puppetProgram = new Program<Puppet>(
		IDL,
		provider,
	);

	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)));
});

Installation

yarn add anchor-bankrun

Why is this a separate package?

I want to keep the Bankrun dependencies light.