solana-program-examples/tokens/token-2022/immutable-owner/anchor/tests/immutable-owner.ts

import * as anchor from '@coral-xyz/anchor';
import type { Program } from '@coral-xyz/anchor';
import { AuthorityType, TOKEN_2022_PROGRAM_ID, createMint, setAuthority } from '@solana/spl-token';
import type { ImmutableOwner } from '../target/types/immutable_owner';

describe('immutable-owner', () => {
  // Configure the client to use the local cluster.
  const provider = anchor.AnchorProvider.env();
  const connection = provider.connection;
  const wallet = provider.wallet as anchor.Wallet;
  anchor.setProvider(provider);

  const program = anchor.workspace.ImmutableOwner as Program<ImmutableOwner>;

  const tokenKeypair = new anchor.web3.Keypair();

  it('Create Token Account with ImmutableOwner extension', async () => {
    const mint = await createMint(
      connection,
      wallet.payer, // Payer of the transaction and initialization fees
      wallet.publicKey, // Mint Authority
      null, // Optional Freeze Authority
      2, // Decimals of Mint
      undefined, // Optional keypair
      undefined, // Options for confirming the transaction
      TOKEN_2022_PROGRAM_ID, // Token Extension Program ID
    );

    const transactionSignature = await program.methods
      .initialize()
      .accounts({
        mintAccount: mint,
        tokenAccount: tokenKeypair.publicKey,
      })
      .signers([tokenKeypair])
      .rpc({ skipPreflight: true });
    console.log('Your transaction signature', transactionSignature);
  });

  it('Attempt to change token account owner, expect fail', async () => {
    try {
      await setAuthority(
        connection, // Connection to use
        wallet.payer, // Payer of the transaction fee
        tokenKeypair.publicKey, // Token Account
        wallet.publicKey, // Owner of the Token Account
        AuthorityType.AccountOwner, // Type of Authority
        new anchor.web3.Keypair().publicKey, // Random address as new account Owner
        undefined, // Additional signers
        undefined, // Confirmation options
        TOKEN_2022_PROGRAM_ID, // Token Extension Program ID
      );
    } catch (error) {
      console.log('\nExpect Error:', error.logs);
    }
  });
});