pdf-visual-diff/lib/pdf2png/pdf2png.test.js

Visual Regression Testing for PDFs in JavaScript

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const node_test_1 = require("node:test");
const assert = require("node:assert/strict");
const path_1 = require("path");
const pdf2png_1 = require("./pdf2png");
const compare_images_1 = require("../compare-images");
const types_1 = require("../types");
const testDataDir = (0, path_1.join)(__dirname, '../test-data');
const pdfs = (0, path_1.join)(testDataDir, 'pdfs');
const singlePage = (0, path_1.join)(pdfs, 'single-page.pdf');
const twoPage = (0, path_1.join)(pdfs, 'two-page.pdf');
const cmaps = (0, path_1.join)(pdfs, 'cmaps.pdf');
const expectedDir = (0, path_1.join)(testDataDir, 'pdf2png-expected');
(0, node_test_1.describe)('pdf2png()', () => {
    (0, node_test_1.it)('two-page.pdf png per page with scaling', () => {
        const expectedImage1Path = (0, path_1.join)(expectedDir, 'two-page_png_per_page_scaled_1.png');
        const expectedImage2Path = (0, path_1.join)(expectedDir, 'two-page_png_per_page_scaled_2.png');
        return (0, pdf2png_1.pdf2png)(twoPage, { dpi: types_1.Dpi.High })
            .then((imgs) => {
            return Promise.all([
                (0, compare_images_1.compareImages)(expectedImage1Path, [imgs[0]]),
                (0, compare_images_1.compareImages)(expectedImage2Path, [imgs[1]]),
            ]);
        })
            .then((results) => {
            results.forEach((x) => assert.strictEqual(x.equal, true));
        });
    });
    (0, node_test_1.it)('two-page.pdf png per page and without scaling', () => {
        const expectedImage1Path = (0, path_1.join)(expectedDir, 'two-page_png_per_page_1.png');
        const expectedImage2Path = (0, path_1.join)(expectedDir, 'two-page_png_per_page_2.png');
        return (0, pdf2png_1.pdf2png)(twoPage, { dpi: types_1.Dpi.Low })
            .then((imgs) => {
            return Promise.all([
                (0, compare_images_1.compareImages)(expectedImage1Path, [imgs[0]]),
                (0, compare_images_1.compareImages)(expectedImage2Path, [imgs[1]]),
            ]);
        })
            .then((results) => {
            results.forEach((x) => assert.strictEqual(x.equal, true));
        });
    });
    (0, node_test_1.it)('should scale using custom DPI', () => {
        const expectedImagePath = (0, path_1.join)(expectedDir, 'should_scale_using_custom_DPI.png');
        return (0, pdf2png_1.pdf2png)(singlePage, { dpi: 200 })
            .then((imgs) => (0, compare_images_1.compareImages)(expectedImagePath, imgs))
            .then((result) => assert.strictEqual(result.equal, true));
    });
    (0, node_test_1.it)('pdf that requires cmaps', () => {
        const expectedImagePath = (0, path_1.join)(expectedDir, 'cmaps.png');
        return (0, pdf2png_1.pdf2png)(cmaps)
            .then((imgs) => (0, compare_images_1.compareImages)(expectedImagePath, imgs))
            .then((result) => assert.strictEqual(result.equal, true));
    });
});
//# sourceMappingURL=pdf2png.test.js.map