solana-program-examples/compression/cutils/anchor/tests/setup.ts

import type { CreateMetadataAccountArgsV3 } from '@metaplex-foundation/mpl-token-metadata';
import type { ValidDepthSizePair } from '@solana/spl-account-compression';
import { Connection, Keypair } from '@solana/web3.js';
import { createCollection, createTree } from './utils/compression';
import { loadOrGenerateKeypair, savePublicKeyToFile } from './utils/helpers';

async function setup() {
  const rpc = 'https://api.devnet.solana.com';
  const connection = new Connection(rpc, 'confirmed');

  // Collection auth and treeCreator
  const payer = loadOrGenerateKeypair('payer');

  // Airdrop
  await connection.requestAirdrop(payer.publicKey, 1 * 10 ** 9);
  console.log('Payer address:', payer.publicKey.toBase58());

  const treeKeypair = Keypair.generate();
  const maxDepthSizePair: ValidDepthSizePair = {
    maxDepth: 14,
    maxBufferSize: 64,
  };
  const canopyDepth = maxDepthSizePair.maxDepth - 5;
  const tree = await createTree(connection, payer, treeKeypair, maxDepthSizePair, canopyDepth);

  // locally save the addresses for demo
  savePublicKeyToFile('treeAddress', tree.treeAddress);

  const collectionMetadataV3: CreateMetadataAccountArgsV3 = {
    data: {
      name: 'Super Sweet NFT Collection',
      symbol: 'SSNC',
      // specific json metadata for the collection
      uri: 'https://supersweetcollection.notarealurl/collection.json',
      sellerFeeBasisPoints: 100,
      creators: [
        {
          address: payer.publicKey,
          verified: false,
          share: 100,
        },
      ],
      collection: null,
      uses: null,
    },
    isMutable: false,
    collectionDetails: null,
  };

  // create a full token mint and initialize the collection (with the `payer` as the authority)
  const collection = await createCollection(connection, payer, collectionMetadataV3);

  // locally save the addresses for the demo
  savePublicKeyToFile('collectionMint', collection.mint);
}

// setup()