import type { Locator } from '@playwright/test';
/**
 * Assertion-helpers a Forms v2 + CWV-szintű ellenőrzésekhez.
 *
 * Konvenció: a Tailwind error-class `.text-red-400.mt-1` az error-msg
 * (Forms v2 stable). A red-border `.border-red-500` a field-input-on.
 */
export declare class DyE2E_AssertionHelpers_Util {
    /** Field-en NINCS error-msg + NINCS red-border. */
    static expectFieldValid(fieldScope: Locator): Promise<void>;
    /** Field-en VAN látható error-msg. Opcionálisan ellenőrzi a szöveget. */
    static expectFieldInvalid(fieldScope: Locator, errorTextContains?: string): Promise<void>;
    /** Field-input red-border. */
    static expectRedBorder(fieldInput: Locator): Promise<void>;
    /** Viewport overflow: document.scrollWidth ≤ window.innerWidth. */
    static expectNoHorizontalOverflow(page: {
        evaluate: <T>(fn: () => T) => Promise<T>;
    }): Promise<void>;
}
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