globalSetup.ts

// Copyright 2017-2021 @polkadot/apps authors & contributors
// SPDX-License-Identifier: Apache-2.0

import { AlwaysPullPolicy, GenericContainer, Wait } from 'testcontainers';

import { SubstrateTestsGlobal } from './substrateTestsGlobal';

declare const global: SubstrateTestsGlobal;

const startSubstrate = async () => {
  console.log('Substrate container starting...');

  const startedTestContainer = await new GenericContainer('parity/substrate')
    .withPullPolicy(new AlwaysPullPolicy())
    .withName('polkadot-apps-test-substrate')
    .withExposedPorts(9944)
    .withCmd(['--dev', '--ws-port=9944', '--unsafe-ws-external'])
    .withWaitStrategy(Wait.forLogMessage('New epoch 0 launching'))
    .start();

  console.log('Done.');

  process.env.TEST_SUBSTRATE_PORT = startedTestContainer.getMappedPort(9944)?.toString() || '';
  global.__SUBSTRATE__ = startedTestContainer;
};

export default async (): Promise<void> => {
  await startSubstrate();
};