Function writePNG

test/runTest/cli.js:363–370

(diffPNG, diffPath)

}

function writePNG(diffPNG, diffPath) {
    return new Promise((resolve, reject) => {
        const writer = fs.createWriteStream(diffPath);
        diffPNG.pack().pipe(writer);
        writer.on('finish', resolve);
        writer.on('error', reject);
    });
};

/**
 * @param {puppeteer.Browser} browser