import type { Backend, BeginDragOptions, DragDropManager, HoverOptions, Identifier, Unsubscribe } from 'dnd-core';
import type { ITestBackend, TestBackendContext } from './types.js';
export declare class TestBackendImpl implements Backend, ITestBackend {
    didCallSetup: boolean;
    didCallTeardown: boolean;
    manager: DragDropManager;
    context: TestBackendContext;
    private actions;
    constructor(manager: DragDropManager, context: TestBackendContext);
    profile(): Record<string, number>;
    setup(): void;
    teardown(): void;
    connectDragSource(): Unsubscribe;
    connectDragPreview(): Unsubscribe;
    connectDropTarget(): Unsubscribe;
    simulateBeginDrag(sourceIds: Identifier[], options: BeginDragOptions): void;
    simulatePublishDragSource(): void;
    simulateHover(targetIds: Identifier[], options: HoverOptions): void;
    simulateDrop(): void;
    simulateEndDrag(): void;
}