anchor/ts/test.js

const assert = require('assert');
const anchor = require('.');

// Global workspace settings.
const WORKSPACE = {
    idl: JSON.parse(require('fs').readFileSync('../examples/basic/idl.json', 'utf8')),
    programId: new anchor.web3.PublicKey('3bSz7zXCXFdEBw8AKEWJAa53YswM5aCoNNt5xSR42JDp'),
    provider: anchor.Provider.local(),
};

async function test() {
    // Configure the local cluster.
    anchor.setProvider(WORKSPACE.provider);

    // Generate the program from IDL.
    const program = new anchor.Program(WORKSPACE.idl, WORKSPACE.programId);

    // New account to create.
    const root = new anchor.web3.Account();

    // Execute the RPC (instruction) against the cluster, passing in the arguments
    // exactly as defined by the Solana program.
    //
    // The last parameter defines context for the transaction. Consisting of
    //
    // 1) Any additional instructions one wishes to execute *before* executing
    //    the program.
    // 2) Any signers (in addition to the provider).
    // 3) Accounts for the program's instruction. Ordering does *not* matter,
    //    only that they names are as specified in the IDL.
    await program.rpc.createRoot(WORKSPACE.provider.wallet.publicKey, new anchor.BN(1234), {
        accounts: {
            root: root.publicKey,
        },
        signers: [root],
        instructions: [
            anchor.web3.SystemProgram.createAccount({
                fromPubkey: WORKSPACE.provider.wallet.publicKey,
                newAccountPubkey: root.publicKey,
                space: 41,
                lamports: await WORKSPACE.provider.connection.getMinimumBalanceForRentExemption(41),
                programId: WORKSPACE.programId,
            }),
        ],
    }
                                );

    // Read the newly created account data.
    let account = await program.account.root(root.publicKey);
    assert.ok(account.initialized);
    assert.ok(account.data.eq(new anchor.BN(1234)));
    assert.ok(account.authority.equals(WORKSPACE.provider.wallet.publicKey));

    // Execute another RPC to update the data.
    await program.rpc.updateRoot(new anchor.BN(999), {
        accounts: {
            root: root.publicKey,
            authority: WORKSPACE.provider.wallet.publicKey,
        },
    });

    // Check the update actually persisted.
    account = await program.account.root(root.publicKey);
    assert.ok(account.data.eq(new anchor.BN(999)));
}

test();