import { VizContent } from "@vizhub/viz-types";
import { BuildWorkerMessage } from "../orchestration/types";
declare class MockWorker {
    url: string;
    private listeners;
    constructor(url: string);
    addEventListener(type: string, callback: (event: any) => void): void;
    removeEventListener(type: string, callback: (event: any) => void): void;
    postMessage(message: BuildWorkerMessage): void;
    dispatchEvent(event: any): void;
    lastMessage: any;
}
declare class MockIframe {
    srcdoc: string;
}
export declare function testMockedIframeWithWorker({ vizContent, expectedHtmlUpdate, expectError, customAssertions, }: {
    vizContent: VizContent;
    expectedHtmlUpdate?: boolean;
    expectError?: boolean;
    customAssertions?: (params: {
        worker: MockWorker;
        iframe: MockIframe;
        runtime: any;
        errorMessage: string | null;
    }) => void;
}): Promise<void>;
export {};
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