import { GGFile } from "@grest-ts/schema-file";
/**
 * Test utilities for creating GGFile instances in tests.
 *
 * @example
 * ```typescript
 * // Create from buffer
 * const file = GGTestFile.fromBuffer(
 *   new Uint8Array([0x89, 0x50, 0x4E, 0x47]),
 *   'test.png',
 *   'image/png'
 * );
 *
 * // Create from string
 * const textFile = GGTestFile.fromString('Hello World', 'hello.txt');
 *
 * // Generate random test files
 * const randomImage = GGTestFile.random(1024, 'test.png', 'image/png');
 * ```
 */
export declare const GGTestFile: {
    /**
     * Create a GGFile from a Uint8Array buffer.
     */
    fromBuffer(data: Uint8Array, name: string, mimeType?: string): GGFile;
    /**
     * Create a GGFile from a string (encoded as UTF-8).
     */
    fromString(content: string, name: string, mimeType?: string): GGFile;
    /**
     * Create a GGFile from a base64-encoded string.
     */
    fromBase64(base64: string, name: string, mimeType?: string): GGFile;
    /**
     * Create a GGFile with random bytes of specified size.
     * Useful for testing file size limits.
     */
    random(size: number, name: string, mimeType?: string): GGFile;
    /**
     * Create a minimal valid PNG file (1x1 transparent pixel).
     * Useful for testing image upload endpoints.
     */
    png1x1(name?: string): GGFile;
    /**
     * Create a minimal valid JPEG file (1x1 red pixel).
     * Useful for testing image upload endpoints.
     */
    jpeg1x1(name?: string): GGFile;
    /**
     * Create a minimal valid PDF file.
     * Useful for testing document upload endpoints.
     */
    pdf(name?: string): GGFile;
    /**
     * Create a JSON file from an object.
     */
    json(data: unknown, name?: string): GGFile;
    /**
     * Create a CSV file from rows.
     */
    csv(rows: string[][], name?: string): GGFile;
};
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