/**
 * Test maintenance utilities for monitoring test health and performance
 * Provides tools for identifying problematic tests and tracking test metrics
 */
export interface TestExecutionMetrics {
    testName: string;
    filePath: string;
    duration: number;
    status: 'passed' | 'failed' | 'skipped';
    timestamp: string;
    memoryUsage?: number;
    retries?: number;
}
export interface TestHealthReport {
    totalTests: number;
    slowTests: TestExecutionMetrics[];
    failingTests: TestExecutionMetrics[];
    flakyTests: TestExecutionMetrics[];
    averageExecutionTime: number;
    memoryLeaks: TestExecutionMetrics[];
    recommendations: string[];
}
export interface TestPerformanceThresholds {
    slowTestThreshold: number;
    memoryLeakThreshold: number;
    flakyTestRetryThreshold: number;
}
/**
 * Default performance thresholds for test monitoring
 */
export declare const DEFAULT_THRESHOLDS: TestPerformanceThresholds;
/**
 * Test maintenance utility class for monitoring test health
 */
export declare class TestMaintenanceUtility {
    private metricsFile;
    private thresholds;
    constructor(metricsFile?: string, thresholds?: TestPerformanceThresholds);
    /**
     * Record test execution metrics
     */
    recordTestMetrics(metrics: TestExecutionMetrics): void;
    /**
     * Load existing test metrics from file
     */
    private loadMetrics;
    /**
     * Save test metrics to file
     */
    private saveMetrics;
    /**
     * Generate comprehensive test health report
     */
    generateHealthReport(daysSince?: number): TestHealthReport;
    /**
     * Identify tests that consistently run slower than threshold
     */
    private identifySlowTests;
    /**
     * Identify tests that have failed recently
     */
    private identifyFailingTests;
    /**
     * Identify flaky tests (tests that sometimes pass, sometimes fail)
     */
    private identifyFlakyTests;
    /**
     * Identify tests with potential memory leaks
     */
    private identifyMemoryLeaks;
    /**
     * Group metrics by test identifier
     */
    private groupByTest;
    /**
     * Generate actionable recommendations based on test health analysis
     */
    private generateRecommendations;
    /**
     * Get test execution time trends over time
     */
    getExecutionTimeTrends(testName?: string, filePath?: string): {
        dates: string[];
        durations: number[];
        trend: 'improving' | 'degrading' | 'stable';
    };
    /**
     * Export health report to various formats
     */
    exportHealthReport(report: TestHealthReport, format?: 'json' | 'markdown' | 'csv'): string;
    private exportToMarkdown;
    private exportToCsv;
}
/**
 * Utility functions for test maintenance
 */
/**
 * Create a test maintenance utility instance
 */
export declare function createTestMaintenanceUtility(metricsFile?: string, thresholds?: Partial<TestPerformanceThresholds>): TestMaintenanceUtility;
/**
 * Quick health check function for CI/CD integration
 */
export declare function performQuickHealthCheck(): {
    healthy: boolean;
    issues: string[];
    metrics: TestHealthReport;
};