import type { Application, State } from "./application.js";
import type { RouteParams, RouterContext } from "./router.js";
/** Creates a mock of `Application`. */
export declare function createMockApp<S extends Record<string | number | symbol, any> = Record<string, any>>(state?: S): Application<S>;
/** Options that can be set in a mock context. */
export interface MockContextOptions<R extends string, P extends RouteParams<R> = RouteParams<R>, S extends State = Record<string, any>> {
    app?: Application<S>;
    ip?: string;
    method?: string;
    params?: P;
    path?: string;
    state?: S;
    headers?: [string, string][];
}
/** Allows external parties to modify the context state. */
export declare const mockContextState: {
    /** Adjusts the return value of the `acceptedEncodings` in the context's
     * `request` object. */
    encodingsAccepted: string;
};
/** Create a mock of `Context` or `RouterContext`. */
export declare function createMockContext<R extends string, P extends RouteParams<R> = RouteParams<R>, S extends State = Record<string, any>>({ ip, method, params, path, state, app, headers: requestHeaders, }?: MockContextOptions<R>): RouterContext<R, P, S>;
/** Creates a mock `next()` function which can be used when calling
 * middleware. */
export declare function createMockNext(): () => Promise<void>;