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import { Database, MongoClient } from "../mod.ts";
const hostname = "127.0.0.1";
export async function getClient(): Promise<MongoClient> {  const client = new MongoClient();  await client.connect(`mongodb://${hostname}:27017`);  return client;}
export async function getTestDb(): Promise<  { client: MongoClient; database: Database }> {  const client = await getClient();  return {    client,    database: client.database("test"),  };}
export async function cleanTestDb(  client: MongoClient,  database: Database,  collectionNames?: string[] | string,) {  if (typeof collectionNames === "string") {    collectionNames = [collectionNames];  }  if (collectionNames !== undefined) {    for (const collectionName of collectionNames) {      await database.collection(collectionName).drop().catch((e) => e);    }  }  await database.dropDatabase().catch((e) => e);  client.close();}