test node tls versions. based on https://support.stripe.com/questions/upgrade-your-node-integration-from-tls-1-0-to-tls-1-2 and https://badssl.com/

test-tls.js

function testVersion(v) {
  const prefix = process.version + ': 1.' + v;
  const https = require('https');
  const req = https.request(
    {
      host: 'tls-v1-' + v + '.badssl.com',
      port: '101' + v,
      path: '/',
      method: 'GET',
    },
    function(res) {
      res.on('data', function() {
        console.log(prefix + ' supported');
      });
    }
  );
  req.end();
  req.on('error', function(err) {
    if (err.code === 'ECONNRESET' || err.code === 'EPROTO') {
      console.log(prefix + ' NOT supported');
    } else {
      console.log(prefix + ' Unknown error');
    }
  });
}

[0, 1, 2].forEach(testVersion);