Function waitUntilPoolsFilled

test/tools/utils.ts:414–431

(
  client: MongoClient,
  signal: AbortSignal,
  count: number = client.s.options.maxPoolSize
)

 * serve as a way to ensure that some connections have been established and are in the pools.
 */
export async function waitUntilPoolsFilled(
  client: MongoClient,
  signal: AbortSignal,
  count: number = client.s.options.maxPoolSize
): Promise<void> {
  let connectionCount = 0;

  async function wait$() {
    for await (const _event of on(client, 'connectionCreated', { signal })) {
      connectionCount++;
      if (connectionCount >= count) {
        break;
      }
    }
  }

  await Promise.all([wait$(), client.connect()]);
}

export async function configureFailPoint(
  configuration: TestConfiguration,