import type { Application } from '@atlex/core';
/**
 * Capture log output in tests.
 */
export declare class LogFake {
    private readonly inner;
    /**
     * Replace the `log` binding with a capturing manager.
     *
     * @param app - Application instance.
     * @returns Fake for assertions.
     */
    static fake(app: Application): LogFake;
    /**
     * Assert a severity was logged.
     *
     * @param level - Log level string (e.g. `info`, `error`).
     * @param callback - Optional matcher on message + context.
     */
    assertLogged(level: string, callback?: (message: string, context: Record<string, unknown>) => boolean): void;
    /**
     * Assert exact number of logs at a level.
     *
     * @param level - Log level string.
     * @param times - Expected count.
     */
    assertLoggedTimes(level: string, times: number): void;
    /**
     * Assert a level was never logged.
     *
     * @param level - Log level string.
     */
    assertNotLogged(level: string): void;
    /** Assert no logs captured. */
    assertNothingLogged(): void;
    /**
     * Entries for a level.
     *
     * @param level - Log level string.
     * @returns Log rows.
     */
    logged(level: string): {
        message: string;
        context: Record<string, unknown>;
    }[];
}
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