import { PDFRef } from './core/pdf-ref.ts';
import type { FontStyle } from './font/pdf-font.ts';
import { PDFFont } from './font/pdf-font.ts';
export declare class MockFont extends PDFFont {
    readonly key: string;
    readonly fontName: string;
    readonly familyName: string;
    readonly style: FontStyle;
    readonly weight: number;
    readonly ascent: number;
    readonly descent: number;
    readonly lineGap: number;
    register: import("vitest").Mock<() => PDFRef>;
    shapeText: import("vitest").Mock<() => never[]>;
    constructor(key: string);
}
/**
 * Creates minimal JPEG data with the specified dimensions and color
 * components for testing header parsing.
 *
 * Note: This does not include DHT (Huffman tables) or DQT (quantization
 * tables), so it cannot be decoded as an actual image.
 */
export declare function createTestJpeg(width: number, height: number, components?: 1 | 3 | 4): Uint8Array;
/**
 * Creates a fake ICC profile with a recognizable byte pattern for testing.
 * This is not a valid ICC profile, but serves to verify that the raw bytes
 * are correctly extracted and passed through.
 */
export declare function createTestICCProfile(numComponents?: 1 | 3 | 4): Uint8Array;
/**
 * Creates minimal JPEG data with an embedded ICC profile in APP2 markers.
 */
export declare function createTestJpegWithICC(width: number, height: number, components?: 1 | 3 | 4, iccProfile?: Uint8Array): Uint8Array;
/**
 * Creates minimal PNG data with an embedded ICC profile in an iCCP chunk.
 */
export declare function createTestPngWithICC(width: number, height: number, colorType?: PngColorType, iccProfile?: Uint8Array): Uint8Array;
/** PNG color type constants */
export declare const PNG_COLOR_GRAYSCALE = 0;
export declare const PNG_COLOR_RGB = 2;
export declare const PNG_COLOR_PALETTE = 3;
export declare const PNG_COLOR_GRAYSCALE_ALPHA = 4;
export declare const PNG_COLOR_RGBA = 6;
export type PngColorType = 0 | 2 | 3 | 4 | 6;
/**
 * Creates minimal PNG data with the specified dimensions and color type
 * for testing PNG parsing.
 *
 * The generated PNG contains valid pixel data (a simple gradient pattern)
 * that can be properly decompressed and processed.
 */
export declare function createTestPng(width: number, height: number, colorType?: PngColorType, bitDepth?: 8 | 16): Uint8Array;