solana-program-examples/basics/hello-solana/anchor/tests/bankrun.test.ts

import { describe, it } from 'node:test';
import * as anchor from '@coral-xyz/anchor';
import { PublicKey } from '@solana/web3.js';
import { BankrunProvider } from 'anchor-bankrun';
import { startAnchor } from 'solana-bankrun';
import { HelloSolana } from '../target/types/hello_solana';

const IDL = require('../target/idl/hello_solana.json');
const PROGRAM_ID = new PublicKey(IDL.address);

describe('hello-solana', async () => {
  // Configure the Anchor provider & load the program IDL for anchor-bankrun
  // The IDL gives you a typescript module
  const context = await startAnchor('', [{ name: 'hello_solana', programId: PROGRAM_ID }], []);
  const provider = new BankrunProvider(context);

  const program = new anchor.Program<HelloSolana>(IDL, provider);

  it('Say hello!', async () => {
    // Just run Anchor's IDL method to build a transaction!
    //
    await program.methods.hello().accounts({}).rpc();
  });
});