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helpers.js
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helpers.js
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import PDFDocument from '../../lib/document';
import { pdf2png } from './pdf2png.js';
function runDocTest(options, fn) {
if (typeof options === 'function') {
fn = options;
options = {};
}
if (!options.info) {
options.info = {};
}
return new Promise(resolve => {
const doc = new PDFDocument(options);
const buffers = [];
fn(doc);
doc.on('data', buffers.push.bind(buffers));
doc.on('end', async () => {
const pdfData = Buffer.concat(buffers);
const { systemFonts = false } = options;
const images = await pdf2png(pdfData, { systemFonts });
for (let image of images) {
expect(image).toMatchImageSnapshot();
}
resolve();
});
doc.end();
});
}
export { runDocTest };