What will the following Node.js code output if the current directory contains a file named test.txt?

What will the following Node.js code output if the current directory contains a file named test.txt?

const { exec } = require('child_process');
exec('ls', (error, stdout, stderr) => {
  if (error) {
    console.error(`Error: ${error.message}`);
    return;
  }
  if (stderr) {
    console.error(`Stderr: ${stderr}`);
    return;
  }
  console.log(`Output: ${stdout}`);
});