import type { SuiteResult } from './types';
export interface PrioritizedTest {
    name: string;
    priority: number;
    reason: string;
}
export interface PrioritizationResult {
    order: PrioritizedTest[];
    strategy: string;
}
interface TestHistory {
    failures: Record<string, number>;
    durations: Record<string, number>;
    lastRun: Record<string, boolean>;
}
/**
 * Load test history from disk.
 */
export declare function loadHistory(dir?: string): TestHistory;
/**
 * Save test history to disk.
 */
export declare function saveHistory(history: TestHistory, dir?: string): void;
/**
 * Update history with latest results.
 */
export declare function updateHistory(history: TestHistory, result: SuiteResult): TestHistory;
/**
 * Prioritize tests based on history and heuristics.
 * Returns test names in priority order (highest first).
 */
export declare function prioritizeTests(testNames: string[], history: TestHistory, changedFiles?: string[]): PrioritizationResult;
/**
 * Format prioritization results for display.
 */
export declare function formatPrioritization(result: PrioritizationResult): string;
export {};
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