import Router from "@koa/router";
import type { Environment } from "../app/config.js";
import MailcatcherAPI from "./mailcatcher.js";
import MockRestApi from "./rest-api.js";
import { TestApp } from "./test-app.js";
export type TestAppConstructor<T extends TestApp = TestApp> = new (uniq_id: string, env: Environment, port: number, base_url: string) => T;
type CallbackParams<FinalTestAppType extends TestApp> = {
    app: FinalTestAppType;
    base_url: string;
    smtp_api_url: string;
    rest_api: MockRestApi;
    port: number;
    mail_api: MailcatcherAPI;
    app_class: TestAppConstructor<TestApp>;
    uniq_id: string;
    env: Environment;
    router: Router;
};
type TestCallback<FinalTestAppType extends TestApp> = (params: CallbackParams<FinalTestAppType>) => Promise<unknown>;
type extendFn<FinalTestAppType extends TestApp> = null | ((app_class: TestAppConstructor<TestApp>) => TestAppConstructor<FinalTestAppType>);
export declare function withStoppedApp<FinalTestAppType extends TestApp>(extend_fn: extendFn<FinalTestAppType>, cb: TestCallback<FinalTestAppType>, test_collection?: string): Promise<any>;
export declare function withRunningApp<FinalTestAppType extends TestApp>(extend_fn: extendFn<FinalTestAppType>, cb: TestCallback<FinalTestAppType>, test_collection?: string): Promise<any>;
export declare function withTestApp<FinalTestAppType extends TestApp>(auto_start: boolean, env: Environment, extend_fn: extendFn<FinalTestAppType>, fn: (params: CallbackParams<FinalTestAppType>) => Promise<unknown>, test_collection?: string): Promise<void>;
export {};