import { TestGraph, TestNode } from '../../generation/generators/types';
import { GraphExpander, Neighbor, PriorityOptions } from '../../interfaces/graph-expander';
/**
 * Mock implementation of GraphExpander for testing bidirectional BFS.
 * Loads graph structure from TestGraph fixture.
 */
export declare class MockGraphExpander implements GraphExpander<TestNode> {
    private adjacency;
    private degrees;
    private nodes;
    private discoveredEdges;
    constructor(graph: TestGraph);
    private buildAdjacency;
    getNeighbors(nodeId: string): Promise<Neighbor[]>;
    getDegree(nodeId: string): number;
    getNode(nodeId: string): Promise<TestNode | null>;
    addEdge(source: string, target: string, relationshipType: string): void;
    calculatePriority(nodeId: string, options?: PriorityOptions): number;
    /**
     * Get all edges discovered during BFS traversal.
     */
    getDiscoveredEdges(): Array<{
        source: string;
        target: string;
        relationshipType: string;
    }>;
    /**
     * Clear discovered edges (for reusing expander in multiple tests).
     */
    clearDiscoveredEdges(): void;
}
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