Method newClient

test/tools/runner/config.ts:223–325

(
    urlOrQueryOptions?: string | Record<string, any>,
    serverOptions?: MongoClientOptions
  )

  }

  newClient(
    urlOrQueryOptions?: string | Record<string, any>,
    serverOptions?: MongoClientOptions
  ): MongoClient {
    const baseOptions: MongoClientOptions = this.compressor
      ? {
          compressors: this.compressor
        }
      : {};

    serverOptions = Object.assign(baseOptions, getEnvironmentalOptions(), serverOptions);

    if (this.loggingEnabled && !Object.hasOwn(serverOptions, 'mongodbLogPath')) {
      serverOptions = this.setupLogging(serverOptions);
    }

    // Support MongoClient constructor form (url, options) for `newClient`.
    if (typeof urlOrQueryOptions === 'string') {
      if ('host' in serverOptions || 'port' in serverOptions) {
        throw new Error(`Cannot use options to specify host/port, must be in ${urlOrQueryOptions}`);
      }

      const newClient: MongoClient = new MongoClient(urlOrQueryOptions, serverOptions);
      return newClient;
    }

    const queryOptions = urlOrQueryOptions ?? {};

    // Fall back.
    let dbHost = queryOptions.host || this.options.host;
    if (dbHost.indexOf('.sock') !== -1) {
      dbHost = qs.escape(dbHost);
    }
    delete queryOptions.host;
    const dbPort = queryOptions.port || this.options.port;
    delete queryOptions.port;

    if (this.options.authMechanism && !serverOptions.authMechanism) {
      Object.assign(queryOptions, {
        authMechanism: this.options.authMechanism
      });
    }

    if (this.options.authMechanismProperties && !serverOptions.authMechanismProperties) {
      Object.assign(queryOptions, {
        authMechanismProperties: convertToConnStringMap(this.options.authMechanismProperties)
      });
    }

    if (this.options.replicaSet && !serverOptions.replicaSet) {
      Object.assign(queryOptions, { replicaSet: this.options.replicaSet });
    }

    if (this.options.proxyURIParams) {
      for (const [name, value] of Object.entries(this.options.proxyURIParams)) {
        if (value) {
          queryOptions[name] = value;
        }