import { Logger, LogLevel } from './logger.js';
/**
 * Log entry captured by TestLogger
 */
export interface LogEntry {
    level: LogLevel;
    message: string;
    context?: Record<string, unknown>;
    timestamp: number;
}
/**
 * Test logger that captures log entries in memory
 *
 * Useful for testing code that uses loggers without:
 * - Mocking logger methods with vi.fn()
 * - Spying on console output
 * - Writing to actual log files
 *
 * Provides a real Logger implementation that can be inspected in tests.
 */
export declare class TestLogger implements Logger {
    /**
     * All log entries captured by this logger
     */
    readonly entries: LogEntry[];
    /**
     * Minimum log level to capture (optional filtering)
     */
    private level?;
    constructor(level?: LogLevel);
    /**
     * Get entries of a specific level
     */
    getEntriesByLevel(level: LogLevel): LogEntry[];
    /**
     * Get the most recent entry
     */
    getLastEntry(): LogEntry | undefined;
    /**
     * Check if a log level should be captured
     */
    private shouldLog;
    /**
     * Capture a log entry
     */
    private log;
    /**
     * Clear all captured entries
     */
    clear(): void;
    debug(message: string, context?: Record<string, unknown>): void;
    info(message: string, context?: Record<string, unknown>): void;
    warn(message: string, context?: Record<string, unknown>): void;
    error(message: string, context?: Record<string, unknown>): void;
}
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