export type WebSocketSimple = Pick<WebSocket, "onerror" | "onmessage" | "onclose" | "send" | "onopen">;
export type OnErrorFn = (e: Event) => void;
export type OnMessageFn = <T = unknown>(e: MessageEvent<T>) => void;
export type OnCloseFn = (e: CloseEvent) => void;
export type EventType = "message" | "error" | "close";
export declare class TestWSConnection<WS extends WebSocketSimple = WebSocket> implements WebSocketSimple {
    #private;
    readonly side: string;
    readonly transfers?: {
        from: string;
        data: Uint8Array;
    }[];
    constructor(side: string, transfers?: {
        from: string;
        data: Uint8Array;
    }[]);
    get onopen(): () => void;
    set onopen(fn: () => void);
    onmessage: OnMessageFn;
    onerror: OnErrorFn;
    onclose: OnCloseFn;
    removeEventListener(key: EventType, listener: EventListenerOrEventListenerObject): void;
    addEventListener(key: EventType, listener: EventListenerOrEventListenerObject): void;
    accept(): void;
    connect(other: TestWSConnection<WS>): void;
    send: (data: string | Blob | BufferSource) => void;
}
export declare class TestWSPair<WS extends WebSocketSimple = WebSocket> {
    readonly msgs: {
        from: string;
        data: Uint8Array;
    }[];
    readonly p1: TestWSConnection<WS>;
    readonly p2: TestWSConnection<WS>;
    static create(): TestWSPair;
    private constructor();
}
//# sourceMappingURL=test-ws-pair.d.ts.map