Method url

test/support/WebSocketServer.ts:33–39

()

  }

  get url(): string {
    invariant(
      this._url,
      'Failed to get "url" on WebSocketServer: server is not running. Did you forget to "await server.listen()"?',
    )
    return this._url
  }

  public async listen(port = 0): Promise<void> {
    const address = await this.app.listen({